{"commit":"b5c720a49a3ca88d560e157a1c37660168573746","subject":"removed some useless client server annotations","message":"removed some useless client server annotations\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"bb409025d91ef8081401794b89b7a76f77976294","subject":"adding color to object","message":"adding color to object\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    a_color = random_color();\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=a_color; ~id; color=a_color } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else (0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=random_color(); ~id } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"37a1822a6f880072b568a3243a3f44d02e08f952","subject":"basic client session setup","message":"basic client session setup\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n@client Modeler = {{\n\n  @private on_message(state, message) = {unchanged};\n\n  init(canvas_sel, width, height) : outcome =\n    (get_scene, set_scene) = \n      org_scene = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ];\n      ref = Mutable.make_client(org_scene);\n      ((-> ref.get()), (new_scene -> ref.set(new_scene)));\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } ->\n        set_scene(List.cons({cube=(x, 0.0, z); id=CHF()}, get_scene()))\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n      do ignore(Session.make(List.empty, on_message));\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n@client Modeler = {{\n\n  init(canvas_sel, width, height) : outcome =\n    (get_scene, set_scene) = \n      org_scene = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ];\n      ref = Mutable.make_client(org_scene);\n      ((-> ref.get()), (new_scene -> ref.set(new_scene)));\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } ->\n        set_scene(List.cons({cube=(x, 0.0, z); id=CHF()}, get_scene()))\n      end ;\n    initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"d34daf11ae2ae6c0cb41f9acf08aacfef77fda3b","subject":"renaming some variable","message":"renaming some variable\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else (0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    \/\/this 9-element buffer actually represents three separate vertex \n    \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n    \/\/do Webgl.set_itemSize(cubeVertexPositionBuffer, 3);\n    \/\/do Webgl.set_numItems(cubeVertexPositionBuffer, 4);\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=random_color(); ~id } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else (0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/global variable to hold the square buffer\n    \/\/We create a buffer for the square's vertex positions.\n    squareVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    \/\/this 9-element buffer actually represents three separate vertex \n    \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n    \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n    \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n    squareVertexNormalBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=squareVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=squareVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=random_color(); ~id } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"1293071762f59decddfbb7ef917f1ead1d399786","subject":"saving code for a future timer","message":"saving code for a future timer\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_start_static_page() =\n  width = 500;\n  height = 500;\n  <div>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> Modeler.init(#{id_canvas_area}, width, height)}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | \"\/scene\/\" scene_url=(.*) ->\n    html(\"3D creation\", server_start_static_page())\n  | \"\/Welcome\" \"\/\"? ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\n_ = Random.random_init();\n\nserver_start_static_page() =\n  width = 500;\n  height = 500;\n  <div>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> Modeler.init(#{id_canvas_area}, width, height)}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | \"\/scene\/\" scene_url=(.*) ->\n    html(\"3D creation\", server_start_static_page())\n  | \"\/Welcome\" \"\/\"? ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ac588c1799455e773bfd13f2c660259b6c52b7ed","subject":"[improvement] re-added users list + improve XHR","message":"[improvement] re-added users list + improve XHR\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private\nusers = Mutable.make([]:list(user))\n\n@private\nlaunch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do jlog(\"connection {user}\")\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do jlog(\"auto disconnection {user}\")\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do jlog(\"disconnection {user}\")\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string)\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n\/\/ @client\n\/\/ ping(fun)=\n\/\/   Scheduler.timer(15000, fun)\n\n\/\/ manage_users(user_list : stringmap(Date.date), action : users_action) =\n\/\/   clean(key, value, acc) =\n\/\/     time = Duration.in_seconds(Duration.between(value, Date.now()))\n\/\/     if time > 20. then\n\/\/        do broadcast({system}, \"leave\", \"{key} has left the room (timeout)\")\n\/\/        acc\n\/\/     else\n\/\/        Map.add(key, value, acc)\n\n\n\/\/   match action with\n\/\/    | {add = u} ->       newmap = Map.add(u, Date.now(),user_list)\n\/\/                         do broadcast({system}, \"join\", \"{u} is connected to the room\")\n\/\/                         do Network.broadcast({users = newmap}, room)\n\/\/                         {set = newmap}\n\n\/\/    | {remove = u} ->    newmap = Map.remove(u, user_list)\n\/\/                         do broadcast({system}, \"leave\", \"{u} has left the room (quit)\")\n\/\/                         do Network.broadcast({users = newmap}, room)\n\/\/                         {set = newmap}\n\n\/\/    | {clean} ->         newmap = Map.fold(clean, user_list, Map.empty)\n\/\/                         do Network.broadcast({users = newmap}, room)\n\/\/                         {set = newmap}\n\n\/\/    | {ping = u} ->      temp = Map.remove(u, user_list)\n\/\/                         {set = Map.add(u, Date.now(), temp)}\n\n\/\/ users = Session.cloud(\"users\", Map.empty, manage_users)\n\n\/\/ do Scheduler.timer(10000, ( -> Session.send(users, {clean})))\n\nlaunch_date = Date.now()\n\n@server\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(msgs:list(msg)) =\n  do update_stats(mem)\n  do List.iter(msg->\n    match msg with\n     | {~message} ->\n      line = <div class=\"line {message.event}\">\n                <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n                { match message.author with\n                  | {system} -> <span class=\"system\"\/>\n                  | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n                <span class=\"message\">{message.text}<\/span>\n             <\/div>\n      do Dom.transform([#conversation +<- line])\n      void\n     _ -> void\n    \/\/  | ~{users} -> list = Map.fold((elt, _, acc -> <>{acc}<li>{elt}<\/li><\/>), users, <><\/>)\n    \/\/                Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  , msgs)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nclient_observe(msg) =\n  match msg\n  {message=_} -> user_update(System.get_memory_usage()\/(1024*1024))([msg])\n  _ -> void\n\n@server\ninit_client(user) =\n  obs = Network.observe(client_observe, room)\n  client_channel = Session.make_callback(_ -> void)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do user_update(0)(List.map(a->{message = a}, history))\n  do update_stats(System.get_memory_usage()\/(1024*1024))\n  void\n\n@server\nlaunch_chat(user:user) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(launch)(_) =\n  user = (Random.int(65536), Dom.get_value(#author))\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user)]\n  )\n\n@server\nserver_observe(msg) =\n  match msg\n  {connection=(user, client_channel)} ->\n    do jlog(\"connection {user}\")\n    do Session.on_remove(client_channel, (->\n      do jlog(\"auto disconnection {user}\")\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do jlog(\"disconnection {user}\")\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@server\nmain() =\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat in Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"],\n    main\n  )\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"ed86472b9a584c7226b44189da47160ce9c12615","subject":"removing normals on objects simple","message":"removing normals on objects simple\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: option(Webgl.WebGLBuffer);\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; normals=Option.none; beginMode=Webgl.LINES(gl); ~color }\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"6dc5be23a8c20d5b0a112ddcd16172c586d83219","subject":"bsic file menu","message":"bsic file menu\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene) =\n        (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n        (channel, (-> get_state().scene)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg)));\n    base =\n      <p><a>Sel<\/a> | <a>Cube<\/a><\/p>\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene) =\n        (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n        (channel, (-> get_state().scene)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg)));\n    base =\n      <div \/>\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"950c74299ce32710755828d699fe5dd64189c156","subject":"LICENSE: moved from AGPL to MIT","message":"LICENSE: moved from AGPL to MIT\n","repos":"MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  Copyright \u00a9 2011-2013 MLstate\n    \n    This code is covered by the MIT license. See the LICENSE file.\n*\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             type=\"text\"\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             type=\"text\"\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"79a3cc9efe73b2013b71802f64bc0717a77d6d55","subject":"included some headers","message":"included some headers\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, <><\/>, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"f20b2387880cbc352446ef6d4ddcb1e6d06e13a7","subject":"[enhance] transfer an html list instead of raw user list to client","message":"[enhance] transfer an html list instead of raw user list to client\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private users = Mutable.make([]) : Mutable.t(list(user))\n\n@private launch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(nb_users, users) =\n  do Dom.transform([#users <- <>Users: {nb_users}<\/>])\n  do Dom.transform([#user_list <- <ul>{users}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    users = users.get()\n    users_html_list = List.fold((elt, acc -> <><li>{elt.f2}<\/li>{acc}<\/>), users, <><\/>)\n    do update_users(List.length(users), users_html_list)\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private users = Mutable.make([]) : Mutable.t(list(user))\n\n@private launch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"9cd80fa18d58544e3560473639230037e1a83ef3","subject":"keep user id server side","message":"keep user id server side\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{~user}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"b28c2b5038dbb4e4a3832abb90434c411566ae26","subject":"explicit input type","message":"explicit input type\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             type=\"text\"\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"928a0908858728919bdf6d4b21971d5c3458d8f1","subject":"using field in engine a little more","message":"using field in engine a little more\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  gl = eng.context;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(eng, eng.shaderProgram, squareVertexPositionBuffer, eng.static_buffers.repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c73af3173b82b74ff9680e594c97106e9f162a84","subject":"moving the rest of selection change into scene.client","message":"moving the rest of selection change into scene.client\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n  apply_command(scene, command : Scene.Client.command) : Scene.Client.scene =\n    match command with\n    | { selection_change; ~possible_target } -> selection_change_low(scene, possible_target)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) =\n        (selection, others) =\n          base = Scene.apply_patch(get_scene(scene), p);\n          g(sel) = Scene.extract_object(base, sel.id);\n          Option.switch(g, (Option.none, base), scene.selection);\n        { scene with ~others; ~selection }\n      Option.switch(f, scene, command)\n    end ;\n    \n  others_add_cube(scene, where) : Scene.Client.scene = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : Scene.Client.scene = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=`Scene.Client`.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  apply_command(scene, command : Scene.Client.command) : Scene.Client.scene = match command with\n    | { selection_change; ~possible_target } -> Scene.selection_change(scene, possible_target)\n    | _ -> Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, command))\n    end ;\n    \n  others_add_cube(scene, where) : Scene.Client.scene = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : Scene.Client.scene = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=`Scene.Client`.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"a8b42d2882b4386bcdc7a10b1cb49d16979f4c1b","subject":"adding remove cmd to the gui","message":"adding remove cmd to the gui\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler; ~last_coord_fixer })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n               <label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"7f70aab31dff8a7579c0c8333f54380e26005bb4","subject":"[feature] .opack: support .opack file","message":"[feature] .opack: support .opack file\n","repos":"OpaOnWindowsNow\/opa-watch","old_file":"opa-dynamic.opa","new_file":"opa-dynamic.opa","new_contents":"\/** opa-dynamic\n  * Monitor a directory conataining a project, recompiles it and relaunch it when needed\n  *\/\n\nimport stdlib.io.file\nimport stdlib.core.concurrency\nimport stdlib.system\n\ndo Scheduler.sleep(1, -> main(CommandLine.filter(CommandLineConf)) ) \/\/ Workaround\n\n@expand\ndebug = #<Ifstatic:DEBUG> s -> println(\"[DEBUG] {s}\") #<Else> _ -> void #<End>\n\ntype config.notifier = {notify_send} \/ {terminal_notifier} \/ {none}\n\n\/** Configuration for one project directory *\/\ntype config = {\n  command : list(string) \/\/ list of command , inferred if empty\n  directory : string     \/\/ project directory\n  avoid_dir : list(string)\n  avoid_ext : list(string)\n  avoid_prefix : list(string)\n  launch : bool\n  opa_opt : string\n  notifier : config.notifier\n}\n\n\n\/\/ Add browser support, launch and reload\nDConfig = {{\n  \/** Control grouping delay of sequential events *\/\n  grouping_delay = Duration.ms(300)\n  config = {\n    command = [] \/\/ empty => inferred\n    directory=\".\"\n    avoid_dir=[\".git\", \"_build\", \"_tracks\",\"node_modules\"]\n    avoid_ext=[\".opx\", \"_depends\"\/*opa*\/, \".log\", \".bak\", \".old\", \"~\"\/*emacs*\/, \".exe\"]\n    avoid_prefix =[ \".#\"\/*emacs*\/, \"#\" ]\n    launch = true\n    opa_opt = \"\"\n    notifier = {notify_send}\n  }\n}}\n\nCommandLineConf = {{\n  title = \"OpaDyn\"\n  init = DConfig.config\n  anonymous = []\n  parsers = [\n    CommandLine.string([\"--src-dir\"],\"Directory to auto-build\",\"directory(={init.directory})\"){\n     s,c -> {c with directory = s}\n    },\n    CommandLine.string([\"--avoid-dir\"],\"Directory to avoid\",\"directory(={init.avoid_dir})\"){\n     s,c -> {c with avoid_dir=[s|c.avoid_dir]}\n    },\n    CommandLine.string([\"--avoid-ext\"],\"Extension to avoid\",\"extension(={init.avoid_ext})\"){\n     s,c -> {c with avoid_ext=[s|c.avoid_ext]}\n    },\n    CommandLine.string([\"--command\"],\"Command to build\",\"command(=inferred)\"){\n     s,c -> {c with command = [s|c.command]}\n    },\n    CommandLine.string([\"--opa-opt\"],\"Option for opa command\",\"opt\"){\n     s,c -> {c with opa_opt = \"{c.opa_opt} {s}\"}\n    },\n    CommandLine.switch([\"--no-launch\"],\"Last command is not a launch command\"){\n     c -> {c with launch = false}\n    },\n    cases = [\n      (\"no\", {none}),\n      (\"linux\", {notify_send}),\n      (\"mac\"  , {terminal_notifier}),\n      (\"windows\", {none})\n    ]\n    CommandLine.case([\"--notifier\"],cases,\n     \"Force platform notifier\", String.concat(\" or \",List.map(_.f1, cases))\n    ){\n     n,c -> {c with notifier = n}\n    },\n  ]\n}} : CommandLine.family(config)\n\navoid_file(config)(file) =\n      List.mem(file,config.avoid_dir)\n  ||  List.exists(String.has_suffix(_,file), config.avoid_ext)\n  ||  List.exists(String.has_prefix(_,file), config.avoid_prefix)\n\n\n\ntype command_queue_state = MutexRef.t({\n  need : bool\n  in_progress : option(Date.date) \/\/ Some => in progress\n})\n\ntype job = {\n  name : string\n  command : -> void\n}\n\n\/** projecting a function to an exclusive access queue,\n    only one function can be executed at the same time,\n    new execution demand during a previous exectution will be merge into one exectution\n    new execution demand that are very near in time are merged\n*\/\nexclusive_queue(command: -> void) = (\n\n  stateR = MutexRef.create({need=false progress=none})\n  finished() = do debug(\"XQUEUE FINISHED\") MutexRef.update(stateR){ state -> {state with progress=none} }\n  start() = do debug(\"XQUEUE START\") MutexRef.update(stateR){ state -> {state with progress=some(Date.now()) need=false} }\n  consume_need()  = MutexRef.exclusive(stateR){ ->\n    state = MutexRef.get(stateR)\n    do debug(\"XQUEUE CONSUME NEED {state}\")\n    do MutexRef.set(stateR, {MutexRef.get(stateR) with need=false})\n    state.need\n  }\n  rec proceed(id) =\n    do debug(\"TRY PROCEED {id}\")\n    if MutexRef.get(stateR).progress!=none then debug(\"STILL IN PROGRESS\") else\n    do debug(\"PROCEED\")\n    do start()\n    do command()\n    do finished()\n    if consume_need() then proceed(id)\n    else debug(\"XQUEUE END LOOP, WAITING\")\n\n  -> MutexRef.update(stateR){ state ->\n    \/\/ any transition to need=true without any in_progress work starts a new proceed_loop\n    if state.need then do debug(\"STILL IN NEED\") state else\n    need = match state.progress\n      {none} -> true\n      {some=t} ->\n        dt = Date.between(t,Date.now())\n        do debug(\"DT = {Duration.in_milliseconds(dt)} ms\")\n        dt > DConfig.grouping_delay \/\/ if far enough after starting progress\n      end\n    do if need then Scheduler.push( -> proceed(Random.string(4)) )\n    do debug(\"NEED = {need}\")\n    {state with ~need}\n  }\n\n)\n\n\/**\n  * Listening a set of file, and triggering command on any change that is not about avoided files.\n  *\/\njob_on_files_changes(avoid_file,files,_name,command)=\n  command=exclusive_queue(command)\n  handler_map = MutexRef.create(StringMap.empty)\n  _remove_file(file) = MutexRef.update(handler_map){\n    map -> StringMap.remove(file, map)\n  }\n  command_if_not_avoid(file) = if not(avoid_file(file)) then command() else debug(\"AVOIDED {file}\")\n  add_file(file) =\n    do debug(\"Listen {file} \")\n    is_directory = File.is_directory(file)\n    if not(is_directory) then void else\n    handler = File.onchange(file,none){file1, event ->\n      do  debug(\"EVENT[{file} {file1}] = {Debug.dump(event)}\")\n      match event\n      {change=file2} ->\n        do if is_directory then debug(\"file-change\") else debug(\"mod-or-delete\")\n        command_if_not_avoid(file2)\n      {rename=file2} ->\n        do if is_directory then debug(\"new-or-delete\") \/\/ TODO : HANDLE NEW FILE LISTENING HERE\n                           else debug(\"delete\")\n        command_if_not_avoid(file2)\n    }\n    do MutexRef.update(handler_map){ map ->\n      StringMap.add(file, handler, map)\n    }\n    debug(\"OK\")\n\n  do StringSet.iter(add_file,files)\n  command()\n\n\n\/** Collect recusively all path in a directory using an avoidance rule *\/\ncollect_files(avoid_file, rpath,dir) =\n  path = List.rev([dir|rpath])\n  pathstr = String.concat(\"\/\", path)\n  v = File.readdir(pathstr):outcome(llarray(string), string)\n  if avoid_file(dir) then []\n  else match v\n  {success=array} ->\n    do debug(\"DIR={pathstr}\")\n    subs = LowLevelArray.mapi(array){ _i,v ->\n      collect_files(avoid_file,[dir|rpath],v)\n    } |> LowLevelArray.fold(List.cons,_,List.empty) |> List.flatten\n    [path|subs]\n  {failure=_} -> [path]\n\n\nkeep_n_first_lines(n,s) = String.explode(\"\\n\", s) |> List.take(n,_) |> String.concat(\"\\n\",_)\n\/\/keep_n_last_lines(n,s)  = String.explode(\"\\n\", s) |> List.rev |> List.take(n,_) |> List.rev |> String.concat(\"\\n\",_)\n\nsummary_error(s) =\n  \/\/ TODO position could be simplified\n  errors = String.explode(\"Error:\", s)\n  nb_errors = List.length(errors)\n  if nb_errors > 0 then \"Error:\"^keep_n_first_lines(8, List.head(List.rev(errors))) else s\n\n\/\/ 8 lines max\nnotify_send(title,mess,positive) =\n  clear(s) = s |> String.replace(\"\\\"\", \" \", _) |> String.replace(\"\\'\", \" \", _)\n  icon = if positive then \"-i dialog-ok-apply\" else \"-i dialog-warning\"\n  mess = summary_error(mess)\n  do debug(\"NOTIFY {mess}\")\n  match System.shell_exec(\"notify-send {icon} -a Opa \\\"{clear(title)}\\\" \\\"{clear(mess)}\\\"\",\"\").result()\n  {error={some=err} ...} -> debug(\"Notify failure : {err}\")\n  ~{stderr stdout ...} -> debug(\"Notify ok : <<{stdout}{stderr}>>\")\n\nnotify =\n| {notify_send} -> notify_send\n| {terminal_notifier} | {none} -> (_,_,_ -> void)\n\nsimplified_dir(dir)= List.head(List.rev(String.explode(\"\/\",dir)))\n\nAutocommand(config) = {{\n  target= \"dynamic.exe\"\n  kill_id = Random.string(16) \/\/ Workaround\n  Conf = {{\n    commands = [\"opa {config.opa_opt} --opx-dir _build --conf *.conf --conf-opa-files -o {target}\"] ++ if config.launch then [\"cp .\/{target} .\/{kill_id}_{target} && .\/{kill_id}_{target} -p 2001\"] else []\n  }}\n  Opack = {{\n    commands = [\"opa {config.opa_opt} *.opack -o {target}\"] ++ if config.launch then [\"cp .\/{target} .\/{kill_id}_{target} && .\/{kill_id}_{target} -p 2001\"] else []\n  }}\n  Makefile = {{\n    commands = [\"make\", ] ++ if config.launch then  [\"make run\"] else []\n  }}\n}}\n\n\nmain(config)=\n  \/\/ Notifier\n  notify_title = \"{simplified_dir(config.directory)}\"\n  notify_title_error = \"FAILURE : {notify_title}\"\n  notify_title_fine = \"Launched : {notify_title}\"\n  notify = notify(config.notifier)\n  \/\/ Avoidance rule\n  avoid_file = avoid_file(config)\n  Autocommand = Autocommand(config)\n  \/\/ Remember last lauch to be able to kill it\n  previous_last = MutexRef.create(none)\n  may_kill_previous_last() = MutexRef.update(previous_last){ opt ->\n    do debug(\"SHOULD KILL {opt}\")\n    do Option.iter(p -> do debug(\"TRY KILL {p.p.pid}\") do p.p.kill() do Reference.set(p.killed, true) debug(\"KILLED {p.p.pid}\"),opt)\n      \/\/ An ugly work-around, need proper process group here\n      do ignore(System.shell_exec(\"ps x -o pid,cmd | grep {Autocommand.kill_id} | cut -d ' ' -f 1 | xargs kill\",\"\").result())\n      none\n    }\n  register_previous_last(p) = MutexRef.update(previous_last)(\n    | {none} -> some(p)\n    | {some=prev} -> do debug(\"{prev.p.pid} has not been killed\") do prev.p.kill() some(p)\n  )\n  \/\/ do System.at_exit( -> do may_kill_previous_last(); \/*do ignore(System.shell_exec(\"cd {config.directory} && rm {Autocommand.kill_id}_*\",\"\") );*\/ void)\n  set = Fold.list( collect_files(avoid_file,[],config.directory), StringSet.empty ){\n\t\tpath, set -> StringSet.add(String.concat(\"\/\", path), set )\n  }\n  \/\/ Standard Opa project detection\n  has_file(file) =  StringSet.mem(String.concat(\"\/\",[config.directory,file]), set)\n  has_ext_file(ext) = StringSet.exists(String.has_suffix(ext,_),set)\n  has_opack = has_ext_file(\".opack\")\n  has_conf = has_ext_file(\".conf\")\n  has_makefile = has_file(\"Makefile\")\n  commands() = (\n     if config.command!=[] then config.command else\n     if has_opack          then Autocommand.Opack.commands else\n     if has_conf           then Autocommand.Conf.commands else\n     if has_makefile       then Autocommand.Makefile.commands else []\n  )\n  do if commands()==[] then error(\"Don't know what to do please specify --command or create a .conf or .opack or Makefile file\")\n  command() =\n    do print(\"Change detected: \")\n    commands = commands()\n    len = List.length(commands)\n    is_last = (_ == len-1)\n    fine = (List.foldi(_,commands,true)){ i, command, continue ->\n    if not(continue) then false else\n      command = \"cd {config.directory} && {command}\"\n      do debug(\"COMMAND {command}\")\n      message = if config.command!=[] then \"command {i}\"\n                else match i\n                     0 -> \"compilation\"\n                     1 -> \"run\"\n                     _ -> \"command {i}\"\n                     end\n      do print(message)\n      killed = Reference.create(false)\n      process_outcome(o) = match o.error\n        {none} -> do print(\" OK, \"); continue\n        {some=_} -> if Reference.get(killed) then true else do println(\" FAILURE <<\\n{o.stderr}\\n>>\"); do notify(notify_title_error,o.stderr,false); false\n        end\n      async_launch_command = len>1 && is_last(i)\n      do if async_launch_command then may_kill_previous_last()\n      ~{p result} = System.shell_exec(command, \"\")\n      do debug(\"LAUNCHED\")\n      do debug(\"LAUNCHED {p.pid}\")\n      if async_launch_command then\n        do register_previous_last(~{p killed})\n        do Scheduler.push{ ->\n          do debug(\"WAIT {p.pid}\")\n          do ignore(process_outcome(result()))\n          debug(\"ASYNC LAUNCH FINISHED {p.pid}\")\n        }\n        true\n      else\n        do debug(\"WAIT {message}\")\n        r = process_outcome(result())\n        do debug(\"DONE {message}\")\n        r\n    }\n    if fine then do println(\" OK\") notify(notify_title_fine,\"\",true) else debug(\"NOT FINE\")\n    job_on_files_changes(avoid_file,set,\"_name\", command)\n\n\n","old_contents":"\/** opa-dynamic\n  * Monitor a directory conataining a project, recompiles it and relaunch it when needed\n  *\/\n\nimport stdlib.io.file\nimport stdlib.core.concurrency\nimport stdlib.system\n\ndo Scheduler.sleep(1, -> main(CommandLine.filter(CommandLineConf)) ) \/\/ Workaround\n\n@expand\ndebug = #<Ifstatic:DEBUG> s -> println(\"[DEBUG] {s}\") #<Else> _ -> void #<End>\n\ntype config.notifier = {notify_send} \/ {terminal_notifier} \/ {none}\n\n\/** Configuration for one project directory *\/\ntype config = {\n  command : list(string) \/\/ list of command , inferred if empty\n  directory : string     \/\/ project directory\n  avoid_dir : list(string)\n  avoid_ext : list(string)\n  avoid_prefix : list(string)\n  launch : bool\n  opa_opt : string\n  notifier : config.notifier\n}\n\n\n\/\/ Add browser support, launch and reload\nDConfig = {{\n  \/** Control grouping delay of sequential events *\/\n  grouping_delay = Duration.ms(300)\n  config = {\n    command = [] \/\/ empty => inferred\n    directory=\".\"\n    avoid_dir=[\".git\", \"_build\", \"_tracks\",\"node_modules\"]\n    avoid_ext=[\".opx\", \"_depends\"\/*opa*\/, \".log\", \".bak\", \".old\", \"~\"\/*emacs*\/, \".exe\"]\n    avoid_prefix =[ \".#\"\/*emacs*\/, \"#\" ]\n    launch = true\n    opa_opt = \"\"\n    notifier = {notify_send}\n  }\n}}\n\nCommandLineConf = {{\n  title = \"OpaDyn\"\n  init = DConfig.config\n  anonymous = []\n  parsers = [\n    CommandLine.string([\"--src-dir\"],\"Directory to auto-build\",\"directory(={init.directory})\"){\n     s,c -> {c with directory = s}\n    },\n    CommandLine.string([\"--avoid-dir\"],\"Directory to avoid\",\"directory(={init.avoid_dir})\"){\n     s,c -> {c with avoid_dir=[s|c.avoid_dir]}\n    },\n    CommandLine.string([\"--avoid-ext\"],\"Extension to avoid\",\"extension(={init.avoid_ext})\"){\n     s,c -> {c with avoid_ext=[s|c.avoid_ext]}\n    },\n    CommandLine.string([\"--command\"],\"Command to build\",\"command(=inferred)\"){\n     s,c -> {c with command = [s|c.command]}\n    },\n    CommandLine.string([\"--opa-opt\"],\"Option for opa command\",\"opt\"){\n     s,c -> {c with opa_opt = \"{c.opa_opt} {s}\"}\n    },\n    CommandLine.switch([\"--no-launch\"],\"Last command is not a launch command\"){\n     c -> {c with launch = false}\n    },\n    cases = [\n      (\"no\", {none}),\n      (\"linux\", {notify_send}),\n      (\"mac\"  , {terminal_notifier}),\n      (\"windows\", {none})\n    ]\n    CommandLine.case([\"--notifier\"],cases,\n     \"Force platform notifier\", String.concat(\" or \",List.map(_.f1, cases))\n    ){\n     n,c -> {c with notifier = n}\n    },\n  ]\n}} : CommandLine.family(config)\n\navoid_file(config)(file) =\n      List.mem(file,config.avoid_dir)\n  ||  List.exists(String.has_suffix(_,file), config.avoid_ext)\n  ||  List.exists(String.has_prefix(_,file), config.avoid_prefix)\n\n\n\ntype command_queue_state = MutexRef.t({\n  need : bool\n  in_progress : option(Date.date) \/\/ Some => in progress\n})\n\ntype job = {\n  name : string\n  command : -> void\n}\n\n\/** projecting a function to an exclusive access queue,\n    only one function can be executed at the same time,\n    new execution demand during a previous exectution will be merge into one exectution\n    new execution demand that are very near in time are merged\n*\/\nexclusive_queue(command: -> void) = (\n\n  stateR = MutexRef.create({need=false progress=none})\n  finished() = do debug(\"XQUEUE FINISHED\") MutexRef.update(stateR){ state -> {state with progress=none} }\n  start() = do debug(\"XQUEUE START\") MutexRef.update(stateR){ state -> {state with progress=some(Date.now()) need=false} }\n  consume_need()  = MutexRef.exclusive(stateR){ ->\n    state = MutexRef.get(stateR)\n    do debug(\"XQUEUE CONSUME NEED {state}\")\n    do MutexRef.set(stateR, {MutexRef.get(stateR) with need=false})\n    state.need\n  }\n  rec proceed(id) =\n    do debug(\"TRY PROCEED {id}\")\n    if MutexRef.get(stateR).progress!=none then debug(\"STILL IN PROGRESS\") else\n    do debug(\"PROCEED\")\n    do start()\n    do command()\n    do finished()\n    if consume_need() then proceed(id)\n    else debug(\"XQUEUE END LOOP, WAITING\")\n\n  -> MutexRef.update(stateR){ state ->\n    \/\/ any transition to need=true without any in_progress work starts a new proceed_loop\n    if state.need then do debug(\"STILL IN NEED\") state else\n    need = match state.progress\n      {none} -> true\n      {some=t} ->\n        dt = Date.between(t,Date.now())\n        do debug(\"DT = {Duration.in_milliseconds(dt)} ms\")\n        dt > DConfig.grouping_delay \/\/ if far enough after starting progress\n      end\n    do if need then Scheduler.push( -> proceed(Random.string(4)) )\n    do debug(\"NEED = {need}\")\n    {state with ~need}\n  }\n\n)\n\n\/**\n  * Listening a set of file, and triggering command on any change that is not about avoided files.\n  *\/\njob_on_files_changes(avoid_file,files,_name,command)=\n  command=exclusive_queue(command)\n  handler_map = MutexRef.create(StringMap.empty)\n  _remove_file(file) = MutexRef.update(handler_map){\n    map -> StringMap.remove(file, map)\n  }\n  command_if_not_avoid(file) = if not(avoid_file(file)) then command() else debug(\"AVOIDED {file}\")\n  add_file(file) =\n    do debug(\"Listen {file} \")\n    is_directory = File.is_directory(file)\n    if not(is_directory) then void else\n    handler = File.onchange(file,none){file1, event ->\n      do  debug(\"EVENT[{file} {file1}] = {Debug.dump(event)}\")\n      match event\n      {change=file2} ->\n        do if is_directory then debug(\"file-change\") else debug(\"mod-or-delete\")\n        command_if_not_avoid(file2)\n      {rename=file2} ->\n        do if is_directory then debug(\"new-or-delete\") \/\/ TODO : HANDLE NEW FILE LISTENING HERE\n                           else debug(\"delete\")\n        command_if_not_avoid(file2)\n    }\n    do MutexRef.update(handler_map){ map ->\n      StringMap.add(file, handler, map)\n    }\n    debug(\"OK\")\n\n  do StringSet.iter(add_file,files)\n  command()\n\n\n\/** Collect recusively all path in a directory using an avoidance rule *\/\ncollect_files(avoid_file, rpath,dir) =\n  path = List.rev([dir|rpath])\n  pathstr = String.concat(\"\/\", path)\n  v = File.readdir(pathstr):outcome(llarray(string), string)\n  if avoid_file(dir) then []\n  else match v\n  {success=array} ->\n    do debug(\"DIR={pathstr}\")\n    subs = LowLevelArray.mapi(array){ _i,v ->\n      collect_files(avoid_file,[dir|rpath],v)\n    } |> LowLevelArray.fold(List.cons,_,List.empty) |> List.flatten\n    [path|subs]\n  {failure=_} -> [path]\n\n\nkeep_n_first_lines(n,s) = String.explode(\"\\n\", s) |> List.take(n,_) |> String.concat(\"\\n\",_)\n\/\/keep_n_last_lines(n,s)  = String.explode(\"\\n\", s) |> List.rev |> List.take(n,_) |> List.rev |> String.concat(\"\\n\",_)\n\nsummary_error(s) =\n  \/\/ TODO position could be simplified\n  errors = String.explode(\"Error:\", s)\n  nb_errors = List.length(errors)\n  if nb_errors > 0 then \"Error:\"^keep_n_first_lines(8, List.head(List.rev(errors))) else s\n\n\/\/ 8 lines max\nnotify_send(title,mess,positive) =\n  clear(s) = s |> String.replace(\"\\\"\", \" \", _) |> String.replace(\"\\'\", \" \", _)\n  icon = if positive then \"-i dialog-ok-apply\" else \"-i dialog-warning\"\n  mess = summary_error(mess)\n  do debug(\"NOTIFY {mess}\")\n  match System.shell_exec(\"notify-send {icon} -a Opa \\\"{clear(title)}\\\" \\\"{clear(mess)}\\\"\",\"\").result()\n  {error={some=err} ...} -> debug(\"Notify failure : {err}\")\n  ~{stderr stdout ...} -> debug(\"Notify ok : <<{stdout}{stderr}>>\")\n\nnotify =\n| {notify_send} -> notify_send\n| {terminal_notifier} | {none} -> (_,_,_ -> void)\n\nsimplified_dir(dir)= List.head(List.rev(String.explode(\"\/\",dir)))\n\nAutocommand(config) = {{\n  target= \"dynamic.exe\"\n  kill_id = Random.string(16) \/\/ Workaround\n  Conf = {{\n    commands = [\"opa {config.opa_opt} --opx-dir _build --conf opa.conf --conf-opa-files -o {target}\"] ++ if config.launch then [\"cp .\/{target} .\/{kill_id}_{target} && .\/{kill_id}_{target} -p 2001\"] else []\n  }}\n  Makefile = {{\n    commands = [\"make\", ] ++ if config.launch then  [\"make run\"] else []\n  }}\n}}\n\n\nmain(config)=\n  \/\/ Notifier\n  notify_title = \"{simplified_dir(config.directory)}\"\n  notify_title_error = \"FAILURE : {notify_title}\"\n  notify_title_fine = \"Launched : {notify_title}\"\n  notify = notify(config.notifier)\n  \/\/ Avoidance rule\n  avoid_file = avoid_file(config)\n  Autocommand = Autocommand(config)\n  \/\/ Remember last lauch to be able to kill it\n  previous_last = MutexRef.create(none)\n  may_kill_previous_last() = MutexRef.update(previous_last){ opt ->\n    do debug(\"SHOULD KILL {opt}\")\n    do Option.iter(p -> do debug(\"TRY KILL {p.p.pid}\") do p.p.kill() do Reference.set(p.killed, true) debug(\"KILLED {p.p.pid}\"),opt)\n      \/\/ An ugly work-around, need proper process group here\n      do ignore(System.shell_exec(\"ps x -o pid,cmd | grep {Autocommand.kill_id} | cut -d ' ' -f 1 | xargs kill\",\"\").result())\n      none\n    }\n  register_previous_last(p) = MutexRef.update(previous_last)(\n    | {none} -> some(p)\n    | {some=prev} -> do debug(\"{prev.p.pid} has not been killed\") do prev.p.kill() some(p)\n  )\n  \/\/ do System.at_exit( -> do may_kill_previous_last(); \/*do ignore(System.shell_exec(\"cd {config.directory} && rm {Autocommand.kill_id}_*\",\"\") );*\/ void)\n  set = Fold.list( collect_files(avoid_file,[],config.directory), StringSet.empty ){\n\t\tpath, set -> StringSet.add(String.concat(\"\/\", path), set )\n  }\n  \/\/ Standard Opa project detection\n  has_file(file) =  StringSet.mem(String.concat(\"\/\",[config.directory,file]), set)\n  has_conf = has_file(\"opa.conf\")\n  has_makefile = has_file(\"Makefile\")\n  commands() = (\n     if config.command!=[] then config.command else\n     if has_conf           then Autocommand.Conf.commands else\n     if has_makefile       then Autocommand.Makefile.commands else []\n  )\n  do if commands()==[] then error(\"Don't know what to do please specify --command or create opa.conf or create a Makefile\")\n  command() =\n    do print(\"Change detected: \")\n    commands = commands()\n    len = List.length(commands)\n    is_last = (_ == len-1)\n    fine = (List.foldi(_,commands,true)){ i, command, continue ->\n    if not(continue) then false else\n      command = \"cd {config.directory} && {command}\"\n      do debug(\"COMMAND {command}\")\n      message = if config.command!=[] then \"command {i}\"\n                else match i\n                     0 -> \"compilation\"\n                     1 -> \"run\"\n                     _ -> \"command {i}\"\n                     end\n      do print(message)\n      killed = Reference.create(false)\n      process_outcome(o) = match o.error\n        {none} -> do print(\" OK, \"); continue\n        {some=_} -> if Reference.get(killed) then true else do println(\" FAILURE <<\\n{o.stderr}\\n>>\"); do notify(notify_title_error,o.stderr,false); false\n        end\n      async_launch_command = len>1 && is_last(i)\n      do if async_launch_command then may_kill_previous_last()\n      ~{p result} = System.shell_exec(command, \"\")\n      do debug(\"LAUNCHED\")\n      do debug(\"LAUNCHED {p.pid}\")\n      if async_launch_command then\n        do register_previous_last(~{p killed})\n        do Scheduler.push{ ->\n          do debug(\"WAIT {p.pid}\")\n          do ignore(process_outcome(result()))\n          debug(\"ASYNC LAUNCH FINISHED {p.pid}\")\n        }\n        true\n      else\n        do debug(\"WAIT {message}\")\n        r = process_outcome(result())\n        do debug(\"DONE {message}\")\n        r\n    }\n    if fine then do println(\" OK\") notify(notify_title_fine,\"\",true) else debug(\"NOT FINE\")\n    job_on_files_changes(avoid_file,set,\"_name\", command)\n\n\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"5005494f135684620b8e4a98fd84afb9852a48c1","subject":"basic dummy onclick on canvas","message":"basic dummy onclick on canvas\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3))) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]));\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3))) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]));\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"a01ee4db3d2b3979ab9c2d57a7666d4730e89d97","subject":"cleanup previous pos","message":"cleanup previous pos\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z -> z.f2.id == p.id), eng.scene) with\n        | { ~some } -> some\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((_, (pos, object)) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((_, (pos, object)) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = \n      f(p) = \n        match List.find((z -> z.f2.id == p.id), eng.scene) with\n        | { ~some } -> (p, some)\n        | { none } -> (p, (p.cube, Cube.create(gl, p.id)))\n        end;\n      List.map(f, get_scene());\n    eng = { eng with scene=List.map((z -> z.f2), scene) };\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"319ccfabedaf2f62c2b3dc8b83d723b19026fbc3","subject":"saving state","message":"saving state\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    f(modsha) = \n      { state with files=StringMap.add(address, f(modsha), state.files) };\n    Option.switch(f, state, find_file(state, address));\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = `Central.Modelers`.get_file(state, scene_url);\n      base = `Modeler.Shared`.add_client(base, sync_channel);\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"600530d0cba4e671e896f0ad613e37646c62f6bd","subject":"[fix\/clean] removed unnecessary code causing a value restriction error","message":"[fix\/clean] removed unnecessary code causing a value restriction error\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_gui_area = \"gui_area\" ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_modeler_static_page(scene_url) =\n  width = 500;\n  height = 500;\n  <div class=\"container\">\n    <div id=#{id_gui_area} onready={_ -> GuiModeler.init(scene_url, SHF(), #{id_gui_area}, width, height)}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nresources = Rule.of_map(@static_include_directory(\".\/src\/css\"))\n\nurls =\n  parser\n  | \"\/\" r=resources -> r\n  | \"\/scene\/\" scene_url=(.*) ->\n    Resource.styled_page(\"3D creation\", [\"\/src\/css\/style.css\"],server_modeler_static_page(Text.to_string(scene_url)))\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_gui_area = \"gui_area\" ;\n\ndefault_css = css\n#{id_gui_area} {\n}\n;\n\nCss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_modeler_static_page(scene_url) =\n  width = 500;\n  height = 500;\n  <div class=\"container\">\n    <div id=#{id_gui_area} onready={_ -> GuiModeler.init(scene_url, SHF(), #{id_gui_area}, width, height)}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nresources = Rule.of_map(@static_include_directory(\".\/src\/css\"))\n\nurls =\n  parser\n  | \"\/\" r=resources -> r\n  | \"\/scene\/\" scene_url=(.*) ->\n    Resource.styled_page(\"3D creation\", [\"\/src\/css\/style.css\"],server_modeler_static_page(Text.to_string(scene_url)))\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"0a1c7f68af1c2e502567e147948d5d1d8971ba7e","subject":"removed comments \/\/ makes code reading difficult","message":"removed comments \/\/ makes code reading difficult\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\"): Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author) =\n   message = {~author text=Dom.get_value(#entry) date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send<\/div>\n\nstart() =\n   go(ev) = Dom.transform([#main <- launch(Dom.get_value(#author))])\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * A simple, one-room, scalable real-time web chat.\n *\n * @author David Rajchenbach-Teller, David@opalang.org\n *\/\n\nimport stdlib.{date}\n\n\/**\n * {1 Network infrastructure}\n *\/\n\n\/**\n * The type of messages sent by a client to the chatroom\n *\/\ntype message = {author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\n\/**\n * The chatroom.\n *\/\nroom = Network.cloud(\"room\"): Network.network(message)\n\n\/**\n * {1 User interface}\n *\/\n\n\/**\n * Update the user interface in reaction to reception of a message.\n *\n * This function is meant to be registered with [room] as a callback.\n * Its sole role is to display the new message in [#conversation].\n *\n * @param x The message received from the chatroom\n *\/\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\n\/**\n * Broadcast text to the [room].\n *\n * Read the contents of [#entry], clear these contents and send the message to [room].\n *\n * @param author The name of the author. Will be included in the message broadcasted.\n *\/\nbroadcast(author) =\n   message = {~author text=Dom.get_value(#entry) date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\n\/**\n * Build the user interface for a client.\n *\n * Pick a random author name which will be used throughout the chat.\n *\n * @return The user interface, ready to be sent by the server to the client on connection.\n *\/\nlaunch(author) =\n   init_client() =\n     \/\/ iter = Iter.of_list(\/history)\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send<\/div>\n\nstart() =\n   go(ev) = Dom.transform([#main <- launch(Dom.get_value(#author))])\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\n\/**\n * {1 Application}\n *\/\n\n\/**\n * Main entry point.\n *\n * Construct an application called \"Chat\" (users will see the name in the title bar),\n * embedding statically the contents of directory \"resources\", using the global stylesheet\n * \"resources\/css.css\" and the user interface defined in [start].\n *\/\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2637217840a733498a8808194d61feccd8dd1389","subject":"* opa\/pfff_logger.opa: comments","message":"* opa\/pfff_logger.opa: comments\n","repos":"mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,rpau\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff,rpau\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * It's a good OPA exercice: need a state (db), some simple\n * visualization (web ui), and it needs to be accessible from anywhere\n * (web service). No need to install any special things on the machine \n * of the user (does it handle scribe, how to aggregate scribe of\n * all machines, etc).\n *\n * history:\n *  - opti: need to use \/db[cmd][date] cos reinsert full list is too slow\n *  \n *\n * alternatives:\n *  - log in a file on a shared NFS dir and then elsewhere do the aggregation\n *  - use RPC (thrift), which would be more typed than abusing urls and json\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *  - use ocamlnet\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - how to allow concurrent access to the db? need run multiple opa?\n *    use opa-cloud with its load balancer? but is db itself concurrent?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(intmap(command_run)) \/db1\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  intmap = \/db1[cmd];\n  vals = Map.To.val_list(intmap);\n  ys = List.map(string_of_command_run, vals);\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        now = Date.now();\n        entry = { unixname: s1, extra_args: s2, date: now }\n        \/counter <- \/counter + 1;\n        \/\/old: slow  \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        \/db1[cmd][Date.in_milliseconds(now)] <- entry;\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * history:\n *  - opti: need to use \/db[cmd][date] cos reinsert full list is too slow\n *  \n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - how to allow concurrent access to the db? need run multiple opa?\n *    use opa-cloud with its load balancer? but is db itself concurrent?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(intmap(command_run)) \/db1\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  intmap = \/db1[cmd];\n  vals = Map.To.val_list(intmap);\n  ys = List.map(string_of_command_run, vals);\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        now = Date.now();\n        entry = { unixname: s1, extra_args: s2, date: now }\n        \/counter <- \/counter + 1;\n        \/\/old: slow  \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        \/db1[cmd][Date.in_milliseconds(now)] <- entry;\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"616a0241bdd2b05999c72de332ccfb70608761ac","subject":"remove warning","message":"remove warning\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do \n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string };\n\ntype Central.Modelers.sync.message = \n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; client_id=_ } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do \n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string };\n\ntype Central.Modelers.sync.message = \n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2caba51b7b9dfc854b66b79fb120a699e67fe1e8","subject":"support selection change for scen client","message":"support selection change for scen client\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  apply_command(scene, command : Scene.Client.command) : Scene.Client.scene = match command with\n    | { selection_change; ~possible_target } -> Scene.selection_change(scene, possible_target)\n    | _ -> Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, command))\n    end ;\n    \n  others_add_cube(scene, where) : Scene.Client.scene = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : Scene.Client.scene = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=`Scene.Client`.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n\n  apply_command(scene, command : Scene.Client.command) : Scene.Client.scene = \n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, command));\n    \n  others_add_cube(scene, where) : Scene.Client.scene = apply_command(scene, {add_cube; ~where});\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"418fc07664c845984ba83f2c76ad9564bd9da915","subject":"moving some args to engine type","message":"moving some args to engine type\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  gl = eng.context;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(eng, eng.shaderProgram, squareVertexPositionBuffer, eng.static_buffers.repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas : { selector:dom; width: int; height: int }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  gl = eng.context;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    eng = { ~context; canvas={ selector=canvas_sel; ~width; ~height } };\n    gl = eng.context;\n    squareVertexPositionBuffer = initBuffers(gl);\n    repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n    shaderProgram = initShaders(gl);\n    \/\/Clear screen and make everything black\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(eng, shaderProgram, squareVertexPositionBuffer, repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9a946be9648b522ff9bab51bc4d9b4af07287f7f","subject":"the scene got his fresher","message":"the scene got his fresher\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  others_add_cube(scene, where) : Scene.Client.scene = { scene with others=Scene.add_object(scene.others, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}) };\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, CPF, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty() : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  others_add_cube(scene, where) : Scene.Client.scene = { scene with others=Scene.add_object(scene.others, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}) };\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty());\n\n  command_to_scene_patch(scene, CPF, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8b035ad8571b58be3eac3d73be5439dd1e691e96","subject":"added history saving","message":"added history saving\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * A simple, one-room, scalable real-time web chat.\n *\n * @author David Rajchenbach-Teller, David@opalang.org\n *\/\n\nimport stdlib.{date}\n\n\/**\n * {1 Network infrastructure}\n *\/\n\n\/**\n * The type of messages sent by a client to the chatroom\n *\/\ntype message = {author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\n\/**\n * The chatroom.\n *\/\nroom = Network.cloud(\"room\"): Network.network(message)\n\n\/**\n * {1 User interface}\n *\/\n\n\/**\n * Update the user interface in reaction to reception of a message.\n *\n * This function is meant to be registered with [room] as a callback.\n * Its sole role is to display the new message in [#conversation].\n *\n * @param x The message received from the chatroom\n *\/\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\n\/**\n * Broadcast text to the [room].\n *\n * Read the contents of [#entry], clear these contents and send the message to [room].\n *\n * @param author The name of the author. Will be included in the message broadcasted.\n *\/\nbroadcast(author) =\n   message = {~author text=Dom.get_value(#entry) date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\n\/**\n * Build the user interface for a client.\n *\n * Pick a random author name which will be used throughout the chat.\n *\n * @return The user interface, ready to be sent by the server to the client on connection.\n *\/\nlaunch(author) =\n   init_client() =\n     \/\/ iter = Iter.of_list(\/history)\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send<\/div>\n\nstart() =\n   go(ev) = Dom.transform([#main <- launch(Dom.get_value(#author))])\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\n\/**\n * {1 Application}\n *\/\n\n\/**\n * Main entry point.\n *\n * Construct an application called \"Chat\" (users will see the name in the title bar),\n * embedding statically the contents of directory \"resources\", using the global stylesheet\n * \"resources\/css.css\" and the user interface defined in [start].\n *\/\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * A simple, one-room, scalable real-time web chat.\n *\n * @author David Rajchenbach-Teller, David@opalang.org\n *\/\n\nimport stdlib.date\n\n\/**\n * {1 Network infrastructure}\n *\/\n\n\/**\n * The type of messages sent by a client to the chatroom\n *\/\ntype message = {author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\n\/**\n * The chatroom.\n *\/\nroom = Network.cloud(\"room\"): Network.network(message)\n\n\/**\n * {1 User interface}\n *\/\n\n\/**\n * Update the user interface in reaction to reception of a message.\n *\n * This function is meant to be registered with [room] as a callback.\n * Its sole role is to display the new message in [#conversation].\n *\n * @param x The message received from the chatroom\n *\/\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\n\/**\n * Broadcast text to the [room].\n *\n * Read the contents of [#entry], clear these contents and send the message to [room].\n *\n * @param author The name of the author. Will be included in the message broadcasted.\n *\/\nbroadcast(author) =\n   do Network.broadcast({~author text=Dom.get_value(#entry) date=Date.now()}, room)\n   Dom.clear_value(#entry)\n\n\/**\n * Build the user interface for a client.\n *\n * Pick a random author name which will be used throughout the chat.\n *\n * @return The user interface, ready to be sent by the server to the client on connection.\n *\/\nlaunch(author) =\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> Network.add_callback(user_update, room)}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send<\/div>\n\nstart() =\n   go(ev) = Dom.transform([#main <- launch(Dom.get_value(#author))])\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\n\/**\n * {1 Application}\n *\/\n\n\/**\n * Main entry point.\n *\n * Construct an application called \"Chat\" (users will see the name in the title bar),\n * embedding statically the contents of directory \"resources\", using the global stylesheet\n * \"resources\/css.css\" and the user interface defined in [start].\n *\/\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c66e6fe5de97f0e79912962b547cddc7f2609972","subject":"system messages","message":"system messages\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\"): Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author) =\n   message = {~author text=Dom.get_value(#entry) date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send<\/div>\n\nstart() =\n   go(ev) = Dom.transform([#main <- launch(Dom.get_value(#author))])\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"633f7ed2be75cf1aadf75e9f818965b39782ba10","subject":"moved a function","message":"moved a function\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"65bc2a77cfccf6d78d5d694a077a91d4219dbc58","subject":"injecting the color picker","message":"injecting the color picker\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import widgets.colorpicker\nimport widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <div class=\"panel_btm\">\n               <label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <div class=\"panel_btm\">\n               <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span>\n               <\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c9847026140454f0af2dc29582bc9fa9fd1ef88e","subject":"removed useless import","message":"removed useless import\n","repos":"MLstate\/MindChat,Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2011 MLstate\n    Copyright \u00a9 2012 Frederic Ye\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(title, content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    {title}\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { match (message.source) {\n                case {system} : <span class=\"system\"\/>\n                case {~user} : <span class=\"user\">{user.name}<\/span>\n                } }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  default : void\n  }\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  OpaShare.init()\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({user: user}, _)\n  #Body = build_page(\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  build_page(\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n           onclick={join}>Join<\/button>\n    <\/div>\n  )\n}\n\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/style.css\"\n    ] }, \/\/ web application CSS\n  { title : \"OpaChat - a real-time web chat built in Opa\", page : start } \/\/ title and start page\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2011 MLstate\n    Copyright \u00a9 2012 Frederic Ye\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{core.date,web.client,system}\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(title, content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    {title}\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { match (message.source) {\n                case {system} : <span class=\"system\"\/>\n                case {~user} : <span class=\"user\">{user.name}<\/span>\n                } }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  default : void\n  }\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  OpaShare.init()\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({user: user}, _)\n  #Body = build_page(\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  build_page(\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n           onclick={join}>Join<\/button>\n    <\/div>\n  )\n}\n\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/style.css\"\n    ] }, \/\/ web application CSS\n  { title : \"OpaChat - a real-time web chat built in Opa\", page : start } \/\/ title and start page\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"3350d933fefbb8e6f12de3cc3e4d77c41dbff6ea","subject":"[clean] indent + type","message":"[clean] indent + type\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private users = Mutable.make([]) : Mutable.t(list(user))\n\n@private launch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private\nusers = Mutable.make([]:list(user))\n\n@private\nlaunch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"1241a674a955b991dd516b4ab8b5b5a27d6ad2e5","subject":"quick hack display for the color div","message":"quick hack display for the color div\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"64a45227ba6b7c4424ce1420d010098fbb759ae9","subject":"utils function for patch on shared scene","message":"utils function for patch on shared scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };\n\n  apply_patch(modsha, patch) = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  update_file(state, address, f) : Central.Modelers.state =\n    f(modsha) = \n      { state with files=StringMap.add(address, f(modsha), state.files) };\n    Option.switch(f, state, find_file(state, address));\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id, scene_url) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };  \n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id, scene_url) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"e13c2cc5532d30cf27d16700be208e29da108d74","subject":"removing a redefinition","message":"removing a redefinition\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene_and_register(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene_and_register(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"03da5f0e223fd80663857708a8e23bf7fe33aec2","subject":"[fix] use decode fun instead of decode2","message":"[fix] use decode fun instead of decode2\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/share.opa","new_file":"src\/share.opa","new_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode(data) |> binary_of_string\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","old_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode2(data) |> binary_of_string\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"a3c34cd7ed16d5f30a7f7931f5822812029549b3","subject":"preparing session msg","message":"preparing session msg\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ca0102a300b5f578192b5fa296d09729ddf35a71","subject":"removing unused function","message":"removing unused function\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) =\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address };\n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ab9a73230ec224b3ac147ef26c2039d355300069","subject":"[enhance] improved history shown to client on connect","message":"[enhance] improved history shown to client on connect\n","repos":"MLstate\/MindChat,Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history = List.rev(List.take(20, List.rev(IntMap.To.val_list(\/history))))\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"309d185da2f306a22fa617f2705bb60b6685a6ac","subject":"shut down a log","message":"shut down a log\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"1743375f920d08743449d30d1a9a0b4f214c4a86","subject":"inversing ZX view","message":"inversing ZX view\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"","old_contents":"","returncode":0,"stderr":"unknown","license":"agpl-3.0","lang":"Opa"}
{"commit":"d58cac9bcae90693d143bf29e431077653e78f5b","subject":"removing unused field","message":"removing unused field\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"e76c4f316804f095b60cab30bf4b0062d6759cae","subject":"moving code","message":"moving code\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}}\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {add_to_scene; ~where} ->\n      { set={ state with scene=Scene.add_cube(state.scene, where) }}\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    org_state = {\n      address=scene_url; scene=Scene.empty()\n      } ;\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(org_state, on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {add_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene\n} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {add_to_scene; ~where} ->\n      { set={ state with scene=List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, state.scene)}}\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    org_state = {\n      address=scene_url; scene=[ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ]\n      } ;\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(org_state, on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {add_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"121b8fdafa8084b92286ab78c1dd0c9b7fcf4290","subject":"apply function for patch and command on the scene","message":"apply function for patch and command on the scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  others_add_cube(scene, where) : Scene.Client.scene = { scene with others=Scene.add_object(scene.others, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}) };\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  others_add_cube(scene, where) : Scene.Client.scene = { scene with others=Scene.add_object(scene.others, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}) };\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8697e0ebb591c3faddc1213f5aa5086c26dcbb04","subject":"begin to separate the client scene form the shared one","message":"begin to separate the client scene form the shared one\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { selection: option(Scene.objects); others: list(Scene.objects) };\n\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  empty() : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(objects, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Scene.objects), list(Scene.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Scene.objects) = List.cons(object, objects);\n\n  selection_change_color(scene, new_color) : Scene.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  others_add_cube(scene, where) : Scene.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection_change(scene, possible_target) : Scene.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n  command_to_scene_patch(scene, CPF, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { selection: option(Scene.objects); others: list(Scene.objects) };\n\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.path = { pid: patch_id;  command: Scene.command };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  empty() : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(objects, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Scene.objects), list(Scene.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Scene.objects) = List.cons(object, objects);\n\n  selection_change_color(scene, new_color) : Scene.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  others_add_cube(scene, where) : Scene.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection_change(scene, possible_target) : Scene.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"912db548d84d3fede132e371d6053f0d03fe072b","subject":"fix: don't disclose existing room","message":"fix: don't disclose existing room\n","repos":"MLstate\/PEPS-chat,MLstate\/PEPS-chat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*\n * PEPS is a modern collaboration server\n * Copyright (C) 2015 MLstate\n *\n * This program is free software: you can redistribute it and\/or modify\n * it under the terms of the GNU Affero General Public License as published\n * by the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n *\/\n\n\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** {1} Constants. *\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"OpaChat\"\nPEPS_DIR = \"\/etc\/peps\"\nNB_LAST_MSGS = 255\n\n\/** {1} Types. *\/\n\ntype client_channel = channel(void)\n\ntype settings = {\n  string host,\n  string sso_host,\n  string consumer_key,\n  string consumer_secret,\n  string app_name\n}\n\n\/** Database declaration. *\/\ndatabase opachat {\n  Message.t \/messages[{id}]\n  Room.t \/rooms[{id}]\n  User.t \/users[{id}]\n}\n\ndatabase \/opachat\/rooms[_]\/secure = true\n\n\/** {1} Utils. *\/\n\n\/** Check the user agent. *\/\nprotected function bool isOpera() {\n  match (HttpRequest.get_user_agent()) {\n    case {some: {renderer: {Presto: _} ...}}: true\n    default: false\n  }\n}\n\n\/** Replaces an event handler. *\/\nclient function goto(string url, _evt) {\n  Client.goto(url)\n}\n\n\/** Retrieve the client identifier (a randomly generated key). *\/\nclient function getLocalKey() {\n  match (Client.SessionStorage.get(\"localKey\")) {\n    case {some: key}: key\n    case {none}:\n      key = Random.string(10)\n      Client.SessionStorage.set(\"localKey\", key)\n      key\n  }\n}\n\n\/** Send a notification to the identity provider via the rest API. *\/\nprotected function notifyUser(string localKey, User.id user, Room.id _room) {\n  url = \"{AuthorAccess.baseUrl}api\/v0\/notify\/{user}\"\n  params = [(\"mode\", app_name)]\n  AuthorAccess.sendRequest(localKey, url, params) |> ignore\n}\n\n\/** {1} Statistics. *\/\n\nprivate server launchDate = Date.now()\n\n\/** Compute uptime and memory usage (MB). *\/\nexposed function computeStatistics() {\n  uptime = Date.between(launchDate, Date.now())\n  memory = System.get_memory_usage()\/(1024*1024)\n  ~{uptime, memory}\n}\n\n\/** Display statistics. *\/\nclient function updateStatistics(stats) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, stats.uptime)}<\/>\n  #memory = <>Memory: {stats.memory} MB<\/>\n}\n\n\n\/** {1} Secret key. *\/\n\nclient function getSecretKey(string localKey, User.id self, callback) {\n  Log.notice(\"[Chat]\", \"getSecretKey\")\n  match (Client.SessionStorage.get(\"userSecretKey\")) {\n    case {some: secretKey}:\n      Log.notice(\"[Chat]\", \"getSecretKey: using stored key\")\n      some(Uint8Array.decodeBase64(secretKey)) |> callback\n    default:\n      match (User.encryption(localKey, self)) {\n        case {some: ~{nonce, salt, secretKey ...}}:\n          Log.notice(\"[Chat]\", \"getSecretKey: loading password input\")\n          #main = passwordInput(\n            \"Authentication\",\n            \"password\",\n            function (_evt) {\n              \/\/ Check the entered password.\n              password = Dom.get_value(#password) |> Uint8Array.decodeUTF8\n              salt = Uint8Array.decodeBase64(salt)\n              nonce = Uint8Array.decodeBase64(nonce)\n              masterKey = TweetNacl.pbkdf2(password, salt, 5000, TweetNacl.SecretBox.keyLength)\n              secretKey = Uint8Array.decodeBase64(secretKey)\n              match (TweetNacl.SecretBox.open(secretKey, nonce, masterKey)) {\n                case {some: secretKey}:\n                  Client.SessionStorage.set(\"userSecretKey\", Uint8Array.encodeBase64(secretKey))\n                  callback(some(secretKey))\n                default:\n                  Log.warning(\"[Chat]\", \"unable to uncrypt {self}'s secretKey\")\n                  #ask_pass_error = <div class=\"alert alert-danger\">Bad password<\/div>\n              }\n            }\n          )\n        default:\n          Log.warning(\"[Chat]\", \"unable to obtain secret key for user {self}\")\n          callback(none)\n      }\n  }\n}\n\n\n\/** {1} Users. *\/\n\n\/**\n * Bind a user presence observer, which updates the availability of the users in a\n * list. The availability must have the id '{userId}-availability' in order to be\n * correctly updated. The observer is removed when the URL is changed.\n *\/\nfunction bindUserObserver() {\n  \/\/ Bind an observer to the user presence network.\n  function observer(msg) {\n    match (msg) {\n      case {status: (credentials, availability)}:\n        availabilityClass = \"availability-{availability}\"\n        Dom.select_class(\"{credentials.key}-availability\") |>\n        Dom.iter(Dom.set_class(_, \"{credentials.key}-availability {availabilityClass}\"), _)\n      case ~{notification}:\n        Utils.notify(<>{notification}<\/>, \"info\")\n    }\n  }\n  obs = User.observePresence(observer)\n  Dom.bind_beforeunload_confirmation(function(_) { Network.unobserve(obs); none }) \/\/ TODO: opera again\n}\n\n\n\/** {1} Conversations list. *\/\n\nprotected function conversations(string localKey, User.id user) {\n  Log.notice(\"[Chat]\", \"building conversations list\")\n  rooms = Room.list(user)\n  rooms = List.fold(function (room, list) { list <+> Room.format(localKey, room, user, openRoom) }, rooms, <><\/>)\n  rooms = if (rooms == <><\/>) <p class=\"list-empty\">No conversations<\/p> else rooms\n  #main =\n    <div>\n      <div class=\"pane-heading\">\n        <a type=\"button\" class=\"btn-icon pull-right\" onclick={openRestrictedRoomCreator} title=\"Start conversation\">\n          <img src=\"\/resources\/img\/compose-o.svg\"\/>\n        <\/a>\n        <div class=\"col-lg-left\">\n          <input id=\"roomName\" placeholder=\"Join room\" onnewline={joinRoom} class=\"form-control\"\/>\n        <\/div>\n      <\/div>\n      <ul id=\"conversations\" class=\"list-group conversations-list\">{rooms}<\/ul>\n    <\/div>\n  bindUserObserver()\n}\n\nexposed function conversationsPage() {\n  page = buildLoggedPage(\"\/\", conversations)\n  Resource.full_page_with_doctype(\"Conversations\", {html5}, page, headers, {success}, [])\n}\n\nclient function openConversations(_evt) {\n  Client.goto(\"\/\")\n}\n\nclient function joinRoom(_evt) {\n  name = Dom.get_value(#roomName) |> String.trim\n  if (name != \"\") Client.goto(\"\/access\/{name}\")\n}\n\n\/** {1} Room editor. *\/\n\n\/** Select \/ unselect a user item. *\/\nclient function toggleUser(string id, _evt) {\n  Log.notice(\"[Chat]\", \"toggleUser {id}\")\n  Dom.toggle_class(#{id}, \"user-selected\")\n}\n\nexposed function searchUsers(string localKey, User.id self, _evt) {\n  \/\/ Identify and isolate current selection.\n  selected = Dom.select_class(\"user-selected\")\n  selectedIds = Dom.fold(function (item, list) {\n    [Dom.get_id(item)|list]\n  }, [], selected)\n  Dom.put_inside(#users_selected, selected) |> ignore\n  \/\/ Fetch new users.\n  term = Dom.get_value(#userSearch)\n  list = List.fold(function (user, list) {\n    if (user.id == self || List.mem(user.id, selectedIds)) list\n    else list <+> User.format(localKey, user, toggleUser)\n  }, User.fetch(50, \"\", term), <><\/>)\n  #users = list\n}\n\n\/**\n * Build and insert the restricted room creator.\n * This room creator displays a user selector, and the room is created\n * using  the select users.\n *\/\nprotected function restrictedRoomCreator(string localKey, User.id self) {\n  list = List.fold(function (user, list) {\n    if (user.id == self) list\n    else list <+> User.format(localKey, user, toggleUser)\n  }, User.fetch(50, \"\", \"\"), <><\/>)\n  list = if (list == <><\/>) <p class=\"list-empty\">No users<\/p> else list\n\n  #main =\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-right\" onclick={createRestrictedRoom(self, _)} title=\"Start conversation\">\n        <img src=\"\/resources\/img\/speech-bubble.svg\"\/>\n      <\/a>\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-mid\">\n        <input id=\"userSearch\" class=\"form-control\" placeholder=\"Search\" onkeyup={searchUsers(localKey, self, _)}\/>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div class=\"alert alert-info\">\n        To create a new chat, select one or more users and click on the Chat icon.\n      <\/div>\n      <ul id=\"users_selected\" class=\"list-group\"\/>\n      <ul id=\"users\" class=\"list-group\">\n        {list}\n      <\/ul>\n    <\/div>\n\n  bindUserObserver()\n}\n\n\/**\n * Build and insert the named room creator.\n * This creator displays a name and a password input.\n *\/\nprotected function namedRoomCreator(string _localKey, User.id self) {\n  #main =\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-right\" onclick={createNamedRoom(self, _)} title=\"New conversation\">\n        <img src=\"\/resources\/img\/speech-bubble.svg\"\/>\n      <\/a>\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openRestrictedRoomCreator} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-mid\">\n        <h3 class=\"pane-title\">Room creation<\/h3>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div id=#notification\/>\n      <div class=\"alert alert-info\">\n        You are about to create a new room.\n        To invite other users to join you just share room name and (optional) password with them.\n      <\/div>\n      <div class=\"form-group\">\n        <input id=\"roomName\" class=\"form-control\" placeholder=\"Room name\" onnewline={createNamedRoom(self, _)}\/>\n      <\/div>\n      <div class=\"form-group\">\n        <input id=\"roomPassword\" class=\"form-control\" type=\"password\" placeholder=\"Password\" onnewline={createNamedRoom(self, _)}\/>\n      <\/div>\n    <\/div>\n}\n\n\/** Return the room editor as a resource. *\/\nexposed function restrictedRoomCreatorPage() {\n  page = buildLoggedPage(\"\/create\/restricted\", restrictedRoomCreator)\n  Resource.full_page_with_doctype(\"Create Room\", {html5}, page, headers, {success}, [])\n}\n\n\/** Return the room editor as a resource. *\/\nexposed function namedRoomCreatorPage() {\n  page = buildLoggedPage(\"\/create\/named\", namedRoomCreator)\n  Resource.full_page_with_doctype(\"Create Room\", {html5}, page, headers, {success}, [])\n}\n\nclient function openRestrictedRoomCreator(_evt) {\n  Client.goto(\"\/create\/restricted\")\n}\n\nclient function openNamedRoomCreator(_evt) {\n  Client.goto(\"\/create\/named\")\n}\n\n\/**\n * Extract the information contained in the form, and return\n * them to the server.\n *\/\nclient function createRestrictedRoom(self, evt) {\n  localKey = getLocalKey()\n  members = Dom.select_class(\"user-selected\")\n  members = Dom.fold(function (item, members) {\n    [Dom.get_id(item)|members]\n  }, [], members)\n  kind = {restricted: [self|members]}\n  if (members == []) openNamedRoomCreator(evt)\n  else saveRoom(localKey, kind, Room.create(localKey, self, kind, self, \"\"))\n}\n\n\/**\n * Extract the information contained in the form, and return\n * them to the server.\n *\/\nclient function createNamedRoom(self, _evt) {\n  localKey = getLocalKey()\n  name = Dom.get_value(#roomName) |> String.trim\n  password = Dom.get_value(#roomPassword)\n  kind = {named: name}\n  if (name == \"\") Utils.notify(<>Please enter a room name<\/>, \"danger\")\n  else saveRoom(localKey, kind, Room.create(localKey, self, kind, self, password))\n}\n\n\/** Create a new room. *\/\nexposed function saveRoom(string localKey, Room.kind kind, Room.t room) {\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user) && room.owner == user)\n    match (Room.find(kind)) {\n      case {some: room}: Client.goto(\"\/access\/{room.id}\")\n      case {none}:\n        Room.save(room)\n        Client.goto(\"\/access\/{room.id}\")\n    }\n  else AuthorAccess.login(localKey, \"\/create\/restricted\")\n}\n\n\n\/** {1} Room chat access. *\/\n\nclient function checkPassword(string localKey, self, string username, Room.t room, _evt) {\n  password = Dom.get_value(#password) |> Uint8Array.decodeUTF8\n  salt = Uint8Array.decodeBase64(room.salt)\n  hash = TweetNacl.hash(Uint8Array.concat(password, salt)) |> Uint8Array.encodeBase64\n  checkHashedPassword(localKey, self, username, hash, room)\n}\n\n\/** Check the input password. *\/\nexposed function checkHashedPassword(string localKey, self, string username, string hash, Room.t room) {\n  if (Room.checkPassword(room, hash)) {\n    channel = Session.make_callback(ignore)\n    saveRoomSecretKey(localKey, self, room, chatAccess(localKey, username, room, channel))\n  } else {\n    Log.warning(\"[Chat]\", \"room login error\")\n    ip ip = HttpRequest.get_ip() ? 0.0.0.0\n    Metric.logBadlogin(room.id, \"Bad room {room.id}:{Room.name(room, \"\")} password\", ip)\n    #ask_pass_error = <div class=\"alert alert-danger\">Bad password<\/div>\n  }\n}\n\n\/**\n * Save the room secret key, derived from the room password using pbkdf2 algorithm.\n * NB: client function, since all encryption operations must be done client side.\n *\/\nclient function saveRoomSecretKey(localKey, self, Room.t room, xhtml page) {\n  Log.notice(\"[Chat]\", \"saveRoomSecretKey\")\n  \/\/ If room is password protected.\n  if (Room.passwordProtected(room)) {\n    password = Dom.get_value(#password)\n    salt = Uint8Array.decodeBase64(room.salt)\n    password = Uint8Array.decodeUTF8(password)\n    masterKey = TweetNacl.pbkdf2(password, salt, 5000, TweetNacl.SecretBox.keyLength)\n    secretKey = Uint8Array.decodeBase64(room.secretKey.message)\n    nonce = Uint8Array.decodeBase64(room.secretKey.nonce)\n    match (TweetNacl.SecretBox.open(secretKey, nonce, masterKey)) {\n      case {some: secretKey}: Client.SessionStorage.set(\"roomSecretKey\", Uint8Array.encodeBase64(secretKey)) \/\/ Store the room master key.\n      default: void\n    }\n    Log.notice(\"[Chat]\", \"stored secret key for room {room.id}\")\n    #main = page\n  \/\/ If room is restricted: extract the secretKey for current user.\n  } else\n    getSecretKey(localKey, self, function {\n      case {some: mySecretKey}:\n        match (StringMap.get(self, room.secretKeys)) {\n          case {some: ~{message: roomSecretKey, nonce}}:\n            nonce = Uint8Array.decodeBase64(nonce)\n            roomSecretKey = Uint8Array.decodeBase64(roomSecretKey)\n            roomPublicKey = Uint8Array.decodeBase64(room.publicKey)\n            match (TweetNacl.Box.open(roomSecretKey, nonce, roomPublicKey, mySecretKey)) {\n              case {some: roomSecretKey}:\n                Client.SessionStorage.set(\"roomSecretKey\", Uint8Array.encodeBase64(roomSecretKey))\n                #main = page\n              default:\n                Log.warning(\"[Chat]\", \"saveRoomSecretKey: invalid user secret key\")\n            }\n          default: Log.warning(\"[Chat]\", \"saveRoomSecretKey: no room secret key for user {self}\")\n        }\n      default: void\n    })\n}\n\n\/** Password input form. *\/\nboth function xhtml passwordInput(string title, string placeholder, check) {\n  <div id=#content>\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-right\">\n        <h3 class=\"pane-title\">{title}<\/h3>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div id=#ask_pass_error><\/div>\n      <div id=#ask_password class=\"form-group\">\n        <input id=#password type=\"password\" autofocus=\"autofocus\"\n            placeholder=\"{placeholder}\"\n            class=\"form-control\"\n            onready={function(_) {Dom.give_focus(#password)}}\n            onnewline={check}\/>\n      <\/div>\n    <\/div>\n  <\/div>\n}\n\nprotected function xhtml roomPasswordInput(string localKey, string self, string username, room) {\n  passwordInput(\n    @toplevel.Room.name(room, \"\"),\n    \"Password for {@toplevel.Room.name(room, \"\")}\",\n    checkPassword(localKey, self, username, room, _)\n  )\n}\n\n\/** Join the input room. *\/\nclient function openRoomAccess(_evt) {\n  room = Dom.get_value(#name)\n  Client.goto(\"\/access\/{room}\")\n}\n\n\/** Join the input room. *\/\nclient function openRoom(Room.id id, _evt) {\n  Client.goto(\"\/access\/{id}\")\n}\n\n\/**\n * Access page: display a password input if needed, and redirect\n * to the room chat after checking the login.\n *\/\nprotected function roomAccess(string localKey, User.id self, Room.id room) {\n  Log.notice(\"[Chat]\", \"roomAccess [{room}]\")\n  username = AuthorAccess.toString(self)\n  match (Room.get(room)) {\n    case {some: room}:\n      match (Room.checkAccess(room, self)) {\n        case {restricted}:\n          channel = Session.make_callback(ignore)\n          saveRoomSecretKey(localKey, self, room, chatAccess(localKey, username, room, channel))\n        case {open}:\n          channel = Session.make_callback(ignore)\n          #main = chatAccess(localKey, username, room, channel)\n        case {pass}:\n          #main = roomPasswordInput(localKey, self, username, room)\n        case ~{error}:\n          #main = error\n      }\n    default:\n      #main = <div class=\"alert alert-danger\">Room {room} does not exist<\/div>\n  }\n}\n\n\/** Access form made into a resource. *\/\nexposed function roomAccessPage(string room) {\n  page = buildLoggedPage(\"\/access\/{room}\", roomAccess(_, _, room))\n  Resource.full_page_with_doctype(\"Access Room\", {html5}, page, headers, {success}, [])\n}\n\n\/** {1} Chat message handlers. **\/\n\n\/** Convert a source to html. *\/\nclient function sourceToHtml(User.id source) {\n  localKey = getLocalKey()\n  <div class=\"user\">{User.getHtmlAvatar(localKey, source)}<\/div>\n}\n\nclient function sourceName(User.id self, User.id source) {\n  if (self == source) \"\" else User.getUsername(source)\n}\n\n\/** Format a message into an xhtml element. *\/\nclient function formatMessage(User.id self, item) {\n  date = Date.to_formatted_string(Date.default_printer, item.date)\n  time = Date.to_string_time_only(item.date)\n  class = if (item.source == self) \"line-right\" else \"line-left\"\n  <div class=\"list-group-item\">\n    <div class=\"line {class}\">\n      {sourceToHtml(item.source)}\n      {Message.render(item)}\n      <small class=\"user-name\">{sourceName(self, item.source)} {time}<\/small>\n    <\/div>\n  <\/div>\n}\n\nclient function prependMessages(User.id self, items) {\n  \/\/ Get the initial length of the list.\n  length = Dom.get_scrollable_size(#conversation).y_px\n  scroll = Dom.get_scroll_top(#conversation)\n  \/\/ Prepend elements.\n  List.iter(function (item) {\n    #conversation += formatMessage(self, item)\n  }, items)\n  \/\/ Get new length and adjust scroll.\n  diff = Dom.get_scrollable_size(#conversation).y_px - length\n  Dom.set_scroll_top(#conversation, scroll+diff)\n}\n\n\/** Insert unidentified items in the chat thread. *\/\nclient function insertMessages(User.id self, stats, items) {\n  Log.notice(\"[Chat]\", \"inserting {List.length(items)} messages\")\n  updateStatistics(stats)\n  List.iter(function (item) {\n    #conversation =+ formatMessage(self, item)\n  }, items)\n  \/\/ TODO: scroll on #conversation div.\n  Dom.scroll_to_bottom(#conversation)\n}\n\n\/** Insert a system message. *\/\nclient @async function insertSystemMessage(stats, string text, Date.date sysdate) {\n  updateStatistics(stats)\n  date = Date.to_formatted_string(Date.default_printer, sysdate)\n  time = Date.to_string_time_only(sysdate)\n  #conversation =+\n    <div class=\"list-group-item\">\n      <small class=\"line-system\">{text} {time}<\/small>\n    <\/div>\n}\n\n\/** Handle room messages. *\/\nprotected function handleChatMessages(string localKey, Room.user self, Room.message event) {\n  match (event) {\n    \/\/ Messages and medium.\n    case ~{message}:\n      if (message.source != self.id)\n        notifyUser(localKey, self.id, message.room)\n      insertMessages(self.id, computeStatistics(), [message])\n    \/\/ Connection and disconnection messages.\n    case {connection: (user, room, _)} :\n      insertSystemMessage(computeStatistics(), Message.connection(room, user.username), Date.now())\n    case {disconnection: (user, room)} :\n      insertSystemMessage(computeStatistics(), Message.disconnection(room, user.username), Date.now())\n    \/\/ Statistics.\n    case {stats} : updateStatistics(computeStatistics())\n    default : void\n  }\n}\n\n\/**\n * {1} Manage room observers.\n *\n * We have horrendous problems with opera, it doesn't implement beforeunload...\n *\/\n\nserver roomObservers = Mutable.make(stringmap((Room.user, Room.t, Network.observer)) StringMap.empty)\n\n\/** Handle the active user disconnection. *\/\nclient function unobserveRoom(bool opera, Room.user self, Room.t room, Network.observer observer) {\n  Log.notice(\"[Chat]\", \"unobserveRoom: {room.id}\")\n  localKey = getLocalKey()\n  Room.disconnect(self, room.id) \/\/ Broadcast disconnection message.\n  Network.unobserve(observer) \/\/ Unbind present observer.\n  if (opera) {\n    roomObservers.set(StringMap.remove(localKey, roomObservers.get())) \/\/ Remove room observer.\n    Client.SessionStorage.remove(\"{localKey}CurrentRoomPointer\")\n  }\n}\n\n\/** Handle the active user connection. *\/\nclient function observeRoom(bool opera, Room.user self, Room.t room, channel, Network.observer observer) {\n  Log.notice(\"[Chat]\", \"observeRoom: {room.id}\")\n  localKey = getLocalKey()\n  \/\/ Unbind current observer.\n  if (opera) {\n    match (Client.SessionStorage.get(\"{localKey}CurrentRoomPointer\")) {\n      case {some: currentRoomId}:\n        if (currentRoomId == room.id)\n          match (StringMap.get(localKey, roomObservers.get())) {\n            case {some: (user, room, obs)}: unobserveRoom(opera, user, room, obs)\n            case {none}: void\n          }\n      default: void\n    }\n    Client.SessionStorage.set(\"{localKey}CurrentRoomPointer\", room.id) \/\/ Update room pointer.\n    roomObservers.set(StringMap.add(localKey, (self, room, observer), roomObservers.get())) \/\/ Update room observers.\n  }\n  Room.connect(self, room.id, channel) \/\/ Broadcast connection message.\n}\n\n\/** Initialize the chat. *\/\nexposed function initChat(string localKey, Room.user self, Room.t room, channel, _evt) {\n  opera = isOpera()\n  \/\/ Observe client.\n  observer = Room.observe(handleChatMessages(localKey, self, _), room.id)\n  observeRoom(opera, self, room, channel, observer)\n  \/\/ Observe disconnection.\n  Dom.bind_beforeunload_confirmation(function(_) {\n    unobserveRoom(opera, self, room, observer)\n    none\n  })\n  \/\/ Initialize OpaShare.\n  Upload.init(sendMedia(self, room.id))\n}\n\nprotected function xhtml chatAccess(string localKey, string username, Room.t room, channel) {\n  self = AuthorAccess.getCurrent(localKey)\n  title = Room.name(room, self)\n  user = ~{id: self, username}\n\n  function broadcast(string text, Message.encryption encryption) {\n    message = Message.new(self, room.id, ~{text}, encryption)\n    Room.broadcast(~{message}, room.id)\n    Metric.logMessage(self, room.id, text)\n  }\n  icon = if (room.secure) \"locked-o.svg\" else \"unlocked-o.svg\"\n  <>\n  <div id=#content onready={initChat(localKey, user, room, channel, _)} class=\"content dropzone\">\n    <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n    <div class=\"pane-heading\">\n      <a class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-right\">\n        <h3 class=\"pane-title\">{title}<img class=\"chat-encryption-icon\" src=\"\/resources\/img\/{icon}\"\/><\/h3>\n      <\/div>\n    <\/div>\n    <ul id=#conversation class=\"conversation list-group\" onready={MessageScroll.init(self, room.id, _)}><\/ul>\n    <div id=#notification class=\"chat-notification\"><\/div>\n  <\/div>\n  <div id=#chatbar class=\"chatbar\">\n      {Upload.html()}\n      <div class=\"col-lg-right\">\n        <input id=#entry autofocus=\"autofocus\"\n          class=\"form-control\"\n          onready={function(_) {Dom.give_focus(#entry)}}\n          onnewline={sendMessage(room.secure, broadcast, _)}\n          x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n  <\/div>\n  <\/>\n}\n\n\/**\n * Broadcast a message and clear the input.\n * @param encrypt enforce message encryption.\n *\/\nclient @async function sendMessage(bool encrypt, broadcast, _) {\n  if (encrypt)\n    match (Client.SessionStorage.get(\"roomSecretKey\")) {\n      case {some: secretKey}:\n        secretKey = Uint8Array.decodeBase64(secretKey)\n        publicKey = TweetNacl.Box.keyPairFromSecretKey(secretKey).publicKey\n        nonce = TweetNacl.randomBytes(TweetNacl.Box.nonceLength)\n        data = Uint8Array.decodeUTF8(Dom.get_value(#entry))\n        message = TweetNacl.Box.box(data, nonce, publicKey, secretKey) |> Uint8Array.encodeBase64\n        broadcast(message, {nonce: Uint8Array.encodeBase64(nonce), key: Uint8Array.encodeBase64(publicKey)})\n      default: Log.warning(\"[Chat]\", \"Could not send the message, encryption is not an available option.\")\n    }\n  else void broadcast(Dom.get_value(#entry), {none})\n  Dom.clear_value(#entry)\n}\n\n\/** Broadcast a media file. *\/\nprotected function sendMedia(Room.user self, Room.id room)(string name, string mimetype, int id) {\n  file = ~{name, mimetype, id}\n  message = Message.new(self.id, room, ~{file}, {none})\n  Room.broadcast(~{message}, room)\n}\n\n\/** Implement an infinite scroll. *\/\nmodule MessageScroll {\n\n  \/**\n   * Fetched pre-formatted user snippets from the database, ready for\n   * insertion in the view. The asynchronous status ensures that the list scroll\n   * remains fluid.\n   *\/\n  private exposed @async function void fetch(User.id self, Room.id room, Date.date ref) {\n    Log.notice(\"[Chat]\", \"Scroll.fetch: ref={ref} room={room} self={self}\")\n    page = Message.fetchPage(room, 20, ref)\n    prepend(self, room, page)\n  }\n\n  \/**\n   * Insert the loaded elements into the view.\n   * If more elements are to be expected, then restore the {scroll} handler, with updated\n   * parameters (set to fetch the following elements).\n   *\/\n  private client function prepend(self, room, page) {\n    if (page.size > 0) {\n      prependMessages(self, page.elts) \/\/ Prepend new elements.\n      Dom.bind(#conversation, {scroll}, scroll(self, room, page.last, _)) |> ignore\n    }\n  }\n\n  \/**\n   * Load more elements, and append them to the end of the list.\n   * Called exclusively by the function {scroll}, which detects the optimal moment for loading more elements.\n   * This function must NOT be async: we need to deactivate the {scroll} event handler, to avoid duplicate\n   * calls to {fetch}. {fetch} IS asynchronous, and this ensures the fluidity of the scroll.\n   *\/\n  private client function void load(self, room, ref) {\n    Dom.unbind_event(#conversation, {scroll}) \/\/ Unbind event to avoid multiple requests.\n    fetch(self, room, ref) \/\/ Send request for more elements.\n  }\n\n  \/**\n   * Called on scroll events. Detect when less than a certain amount of elements remain in the list\n   * to know when to trigger the function to fetch more user.\n   * User height is estimated at 80px for the purpose of determining the number of elements left in the list.\n   * When less than three times the amount of visible user remain in the list, new elements are fetched.\n   * Same as {load}, this function needn't be asynchronous.\n   *\/\n  private client function void scroll(self, room, ref, _evt) {\n    list = #conversation\n    current = Dom.get_scroll_top(list)\n    height = Dom.get_height(list)\n    mvisible = height\/80\n    mleft = current\/80\n    if (mleft < 3*mvisible) load(self, room, ref)\n  }\n\n  \/** Initialize the infinite scolling. *\/\n  function init(self, room, _evt) {\n    load(self, room, Date.now())\n  }\n\n} \/\/ END MESSAGESCROLL\n\n\n\n\/** {1} Server launch. *\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\n\/** Page headers. *\/\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/**\n * Create the page structure, and set up an initializer.\n * The login is automatically checked, and the page redirects to a login box\n * if no user is connected.\n *\/\nprotected function xhtml buildLoggedPage(string redirect, init) {\n  \/\/ Retrieve access token from query parameters (if provided).\n  \/\/ The access token is inserted into SSO service.\n  url = HttpRequest.get_url()\n  token = match (url) {\n    case {some: url}: List.assoc(\"oauth_token\", url.query)\n    default: none\n  }\n  <div id=#main class=\"main-view\" onready={initClient(token, checkLogin(redirect, init, _), _)}\/>\n}\n\n\/**\n * Set the access token if provided, and initialize the client's local key.\n * Check login state and retrieve credentials.\n *\/\nclient function void initClient(option(string) token, callback, evt) {\n  match (token) {\n    case {some: token}:\n      localKey = getLocalKey()\n      if (AuthorAccess.setAccessToken(localKey, token)) {\n        Client.SessionStorage.set(\"chat_provider_login\", \"true\")\n      }\n    default: void\n  }\n  callback(evt)\n}\n\n\/**\n * Insert the logout button. The button is inserted only if the login wasn't automatic\n * (from the identity provider). This is determined by the value of the local storage variable\n * 'chat_provider_login'.\n *\/\nclient function insertLogout(localKey, _evt) {\n  match (Client.SessionStorage.get(\"chat_provider_login\")) {\n    case {some: \"true\"}: void\n    default:\n      #loginout_button =\n        <button class=\"btn btn-default\"\n            onclick={function (_) { AuthorAccess.logout(localKey, \"\/\") }}>\n          Logout\n        <\/button>\n  }\n}\n\n\/**\n * Check whether the login state is defined, and redirect the\n * user accordingly.\n *\/\nexposed function checkLogin(string url, onready, _evt) {\n  localKey = getLocalKey()\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user))\n    onready(localKey, user)\n  else AuthorAccess.login(localKey, url)\n}\n\n\/** Execute the function only if the active user if correctly logged in. *\/\nexposed function ifLogin(string localKey, iflogin) {\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user)) iflogin()\n  else void\n}\n\n\/**\n * Return the avatar of the user as a dataUrl.\n * If no avatar is attributed to the user, the dataUrl will be the reference\n * 'resources\/img\/default-user.svg'.\n *\/\nprotected function downloadAvatar(User.id user) {\n  match (HttpRequest.get_url()) {\n    case {some: url}:\n      match (List.assoc(\"localKey\", url.query)) {\n        case {some: localKey}:\n          AuthorAccess.getAvatar(localKey, user)\n        default: @static_resource(\"resources\/img\/default-user.svg\")\n      }\n    default: @static_resource(\"resources\/img\/default-user.svg\")\n  }\n}\n\n\/** Download a file. *\/\nprotected function downloadFile(int id) {\n  match (Upload.get(id)) {\n    case {some: file}:\n      Resource.binary(file.content, file.mimetype) |>\n      Resource.add_header(_, {content_disposition: {attachment: file.name}})\n    default:\n      conversationsPage()\n  }\n}\n\n\/** Access metrics. *\/\nfunction metrics(string room, option(string) timestamp) {\n  Resource.json(\n    match (Room.find({named: room})) {\n      case {some: room}:\n        messages = Metric.fetch(room.id, NB_LAST_MSGS, 0, timestamp)\n        RPC.Json.json {List: List.map(Metric.toJson, messages)}\n      case {none}:\n        \/\/ if room does not exist, we return an empty list\n        RPC.Json.json { List: [] }\n        \/\/ Resource.json({Record:[(\"error\", {String: \"Room {room} does not exist\"})]})\n    }\n  )\n}\n\n\/** Global dispatcher. *\/\ndispatcher = parser {\n  \/\/ SSO reserved URLs.\n  case _special=AuthorAccess.special_uris : conversationsPage()\n  case special = AuthorAccess.special_uris2 : special\n  \/\/ Specific URLs.\n  case \"\/avatar\/\" id=((!\"?\" .)*) (\"?\" .*)?: downloadAvatar(Text.to_string(id))\n  case \"\/file\/\" id=Rule.integer: downloadFile(id)\n  case \"\/access\/\" room=Rule.ident: roomAccessPage(room)\n  case \"\/create\/restricted\": restrictedRoomCreatorPage()\n  case \"\/create\/named\": namedRoomCreatorPage()\n  case \"\/metrics\/\" room=Rule.ident \"\/\"? timestamp=Rule.ident? : metrics(room, timestamp)\n  \/\/ Default to front page.\n  case _url=(.*): conversationsPage()\n    \/\/ startPage(<><\/>)\n}\n\n\/** Server configuration. *\/\nserverConf =\n  port = Utils.config(\"{PEPS_DIR}\/apps\/chat\/port\") |> Option.bind(Int.of_string_opt, _)\n  conf =\n    if (no_ssl == \"true\") Server.http\n    else\n      { Server.https with\n        name: \"opachat\",\n        encryption: {\n          certificate : \"{PEPS_DIR}\/server.crt\",\n          private_key : \"{PEPS_DIR}\/server.key\",\n          password : \"\"\n        } }\n  match (port) {\n    case {some: port}: {conf with ~port}\n    default: conf\n  }\n\n\/\/ Start the server.\nServer.start(serverConf, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : dispatcher } \/\/ URL parser\n])\n","old_contents":"\/*\n * PEPS is a modern collaboration server\n * Copyright (C) 2015 MLstate\n *\n * This program is free software: you can redistribute it and\/or modify\n * it under the terms of the GNU Affero General Public License as published\n * by the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n *\/\n\n\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** {1} Constants. *\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"OpaChat\"\nPEPS_DIR = \"\/etc\/peps\"\nNB_LAST_MSGS = 10\n\n\/** {1} Types. *\/\n\ntype client_channel = channel(void)\n\ntype settings = {\n  string host,\n  string sso_host,\n  string consumer_key,\n  string consumer_secret,\n  string app_name\n}\n\n\/** Database declaration. *\/\ndatabase opachat {\n  Message.t \/messages[{id}]\n  Room.t \/rooms[{id}]\n  User.t \/users[{id}]\n}\n\ndatabase \/opachat\/rooms[_]\/secure = true\n\n\/** {1} Utils. *\/\n\n\/** Check the user agent. *\/\nprotected function bool isOpera() {\n  match (HttpRequest.get_user_agent()) {\n    case {some: {renderer: {Presto: _} ...}}: true\n    default: false\n  }\n}\n\n\/** Replaces an event handler. *\/\nclient function goto(string url, _evt) {\n  Client.goto(url)\n}\n\n\/** Retrieve the client identifier (a randomly generated key). *\/\nclient function getLocalKey() {\n  match (Client.SessionStorage.get(\"localKey\")) {\n    case {some: key}: key\n    case {none}:\n      key = Random.string(10)\n      Client.SessionStorage.set(\"localKey\", key)\n      key\n  }\n}\n\n\/** Send a notification to the identity provider via the rest API. *\/\nprotected function notifyUser(string localKey, User.id user, Room.id _room) {\n  url = \"{AuthorAccess.baseUrl}api\/v0\/notify\/{user}\"\n  params = [(\"mode\", app_name)]\n  AuthorAccess.sendRequest(localKey, url, params) |> ignore\n}\n\n\/** {1} Statistics. *\/\n\nprivate server launchDate = Date.now()\n\n\/** Compute uptime and memory usage (MB). *\/\nexposed function computeStatistics() {\n  uptime = Date.between(launchDate, Date.now())\n  memory = System.get_memory_usage()\/(1024*1024)\n  ~{uptime, memory}\n}\n\n\/** Display statistics. *\/\nclient function updateStatistics(stats) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, stats.uptime)}<\/>\n  #memory = <>Memory: {stats.memory} MB<\/>\n}\n\n\n\/** {1} Secret key. *\/\n\nclient function getSecretKey(string localKey, User.id self, callback) {\n  Log.notice(\"[Chat]\", \"getSecretKey\")\n  match (Client.SessionStorage.get(\"userSecretKey\")) {\n    case {some: secretKey}:\n      Log.notice(\"[Chat]\", \"getSecretKey: using stored key\")\n      some(Uint8Array.decodeBase64(secretKey)) |> callback\n    default:\n      match (User.encryption(localKey, self)) {\n        case {some: ~{nonce, salt, secretKey ...}}:\n          Log.notice(\"[Chat]\", \"getSecretKey: loading password input\")\n          #main = passwordInput(\n            \"Authentication\",\n            \"password\",\n            function (_evt) {\n              \/\/ Check the entered password.\n              password = Dom.get_value(#password) |> Uint8Array.decodeUTF8\n              salt = Uint8Array.decodeBase64(salt)\n              nonce = Uint8Array.decodeBase64(nonce)\n              masterKey = TweetNacl.pbkdf2(password, salt, 5000, TweetNacl.SecretBox.keyLength)\n              secretKey = Uint8Array.decodeBase64(secretKey)\n              match (TweetNacl.SecretBox.open(secretKey, nonce, masterKey)) {\n                case {some: secretKey}:\n                  Client.SessionStorage.set(\"userSecretKey\", Uint8Array.encodeBase64(secretKey))\n                  callback(some(secretKey))\n                default:\n                  Log.warning(\"[Chat]\", \"unable to uncrypt {self}'s secretKey\")\n                  #ask_pass_error = <div class=\"alert alert-danger\">Bad password<\/div>\n              }\n            }\n          )\n        default:\n          Log.warning(\"[Chat]\", \"unable to obtain secret key for user {self}\")\n          callback(none)\n      }\n  }\n}\n\n\n\/** {1} Users. *\/\n\n\/**\n * Bind a user presence observer, which updates the availability of the users in a\n * list. The availability must have the id '{userId}-availability' in order to be\n * correctly updated. The observer is removed when the URL is changed.\n *\/\nfunction bindUserObserver() {\n  \/\/ Bind an observer to the user presence network.\n  function observer(msg) {\n    match (msg) {\n      case {status: (credentials, availability)}:\n        availabilityClass = \"availability-{availability}\"\n        Dom.select_class(\"{credentials.key}-availability\") |>\n        Dom.iter(Dom.set_class(_, \"{credentials.key}-availability {availabilityClass}\"), _)\n      case ~{notification}:\n        Utils.notify(<>{notification}<\/>, \"info\")\n    }\n  }\n  obs = User.observePresence(observer)\n  Dom.bind_beforeunload_confirmation(function(_) { Network.unobserve(obs); none }) \/\/ TODO: opera again\n}\n\n\n\/** {1} Conversations list. *\/\n\nprotected function conversations(string localKey, User.id user) {\n  Log.notice(\"[Chat]\", \"building conversations list\")\n  rooms = Room.list(user)\n  rooms = List.fold(function (room, list) { list <+> Room.format(localKey, room, user, openRoom) }, rooms, <><\/>)\n  rooms = if (rooms == <><\/>) <p class=\"list-empty\">No conversations<\/p> else rooms\n  #main =\n    <div>\n      <div class=\"pane-heading\">\n        <a type=\"button\" class=\"btn-icon pull-right\" onclick={openRestrictedRoomCreator} title=\"Start conversation\">\n          <img src=\"\/resources\/img\/compose-o.svg\"\/>\n        <\/a>\n        <div class=\"col-lg-left\">\n          <input id=\"roomName\" placeholder=\"Join room\" onnewline={joinRoom} class=\"form-control\"\/>\n        <\/div>\n      <\/div>\n      <ul id=\"conversations\" class=\"list-group conversations-list\">{rooms}<\/ul>\n    <\/div>\n  bindUserObserver()\n}\n\nexposed function conversationsPage() {\n  page = buildLoggedPage(\"\/\", conversations)\n  Resource.full_page_with_doctype(\"Conversations\", {html5}, page, headers, {success}, [])\n}\n\nclient function openConversations(_evt) {\n  Client.goto(\"\/\")\n}\n\nclient function joinRoom(_evt) {\n  name = Dom.get_value(#roomName) |> String.trim\n  if (name != \"\") Client.goto(\"\/access\/{name}\")\n}\n\n\/** {1} Room editor. *\/\n\n\/** Select \/ unselect a user item. *\/\nclient function toggleUser(string id, _evt) {\n  Log.notice(\"[Chat]\", \"toggleUser {id}\")\n  Dom.toggle_class(#{id}, \"user-selected\")\n}\n\nexposed function searchUsers(string localKey, User.id self, _evt) {\n  \/\/ Identify and isolate current selection.\n  selected = Dom.select_class(\"user-selected\")\n  selectedIds = Dom.fold(function (item, list) {\n    [Dom.get_id(item)|list]\n  }, [], selected)\n  Dom.put_inside(#users_selected, selected) |> ignore\n  \/\/ Fetch new users.\n  term = Dom.get_value(#userSearch)\n  list = List.fold(function (user, list) {\n    if (user.id == self || List.mem(user.id, selectedIds)) list\n    else list <+> User.format(localKey, user, toggleUser)\n  }, User.fetch(50, \"\", term), <><\/>)\n  #users = list\n}\n\n\/**\n * Build and insert the restricted room creator.\n * This room creator displays a user selector, and the room is created\n * using  the select users.\n *\/\nprotected function restrictedRoomCreator(string localKey, User.id self) {\n  list = List.fold(function (user, list) {\n    if (user.id == self) list\n    else list <+> User.format(localKey, user, toggleUser)\n  }, User.fetch(50, \"\", \"\"), <><\/>)\n  list = if (list == <><\/>) <p class=\"list-empty\">No users<\/p> else list\n\n  #main =\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-right\" onclick={createRestrictedRoom(self, _)} title=\"Start conversation\">\n        <img src=\"\/resources\/img\/speech-bubble.svg\"\/>\n      <\/a>\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-mid\">\n        <input id=\"userSearch\" class=\"form-control\" placeholder=\"Search\" onkeyup={searchUsers(localKey, self, _)}\/>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div class=\"alert alert-info\">\n        To create a new chat, select one or more users and click on the Chat icon.\n      <\/div>\n      <ul id=\"users_selected\" class=\"list-group\"\/>\n      <ul id=\"users\" class=\"list-group\">\n        {list}\n      <\/ul>\n    <\/div>\n\n  bindUserObserver()\n}\n\n\/**\n * Build and insert the named room creator.\n * This creator displays a name and a password input.\n *\/\nprotected function namedRoomCreator(string _localKey, User.id self) {\n  #main =\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-right\" onclick={createNamedRoom(self, _)} title=\"New conversation\">\n        <img src=\"\/resources\/img\/speech-bubble.svg\"\/>\n      <\/a>\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openRestrictedRoomCreator} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-mid\">\n        <h3 class=\"pane-title\">Room creation<\/h3>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div id=#notification\/>\n      <div class=\"alert alert-info\">\n        You are about to create a new room.\n        To invite other users to join you just share room name and (optional) password with them.\n      <\/div>\n      <div class=\"form-group\">\n        <input id=\"roomName\" class=\"form-control\" placeholder=\"Room name\" onnewline={createNamedRoom(self, _)}\/>\n      <\/div>\n      <div class=\"form-group\">\n        <input id=\"roomPassword\" class=\"form-control\" type=\"password\" placeholder=\"Password\" onnewline={createNamedRoom(self, _)}\/>\n      <\/div>\n    <\/div>\n}\n\n\/** Return the room editor as a resource. *\/\nexposed function restrictedRoomCreatorPage() {\n  page = buildLoggedPage(\"\/create\/restricted\", restrictedRoomCreator)\n  Resource.full_page_with_doctype(\"Create Room\", {html5}, page, headers, {success}, [])\n}\n\n\/** Return the room editor as a resource. *\/\nexposed function namedRoomCreatorPage() {\n  page = buildLoggedPage(\"\/create\/named\", namedRoomCreator)\n  Resource.full_page_with_doctype(\"Create Room\", {html5}, page, headers, {success}, [])\n}\n\nclient function openRestrictedRoomCreator(_evt) {\n  Client.goto(\"\/create\/restricted\")\n}\n\nclient function openNamedRoomCreator(_evt) {\n  Client.goto(\"\/create\/named\")\n}\n\n\/**\n * Extract the information contained in the form, and return\n * them to the server.\n *\/\nclient function createRestrictedRoom(self, evt) {\n  localKey = getLocalKey()\n  members = Dom.select_class(\"user-selected\")\n  members = Dom.fold(function (item, members) {\n    [Dom.get_id(item)|members]\n  }, [], members)\n  kind = {restricted: [self|members]}\n  if (members == []) openNamedRoomCreator(evt)\n  else saveRoom(localKey, kind, Room.create(localKey, self, kind, self, \"\"))\n}\n\n\/**\n * Extract the information contained in the form, and return\n * them to the server.\n *\/\nclient function createNamedRoom(self, _evt) {\n  localKey = getLocalKey()\n  name = Dom.get_value(#roomName) |> String.trim\n  password = Dom.get_value(#roomPassword)\n  kind = {named: name}\n  if (name == \"\") Utils.notify(<>Please enter a room name<\/>, \"danger\")\n  else saveRoom(localKey, kind, Room.create(localKey, self, kind, self, password))\n}\n\n\/** Create a new room. *\/\nexposed function saveRoom(string localKey, Room.kind kind, Room.t room) {\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user) && room.owner == user)\n    match (Room.find(kind)) {\n      case {some: room}: Client.goto(\"\/access\/{room.id}\")\n      case {none}:\n        Room.save(room)\n        Client.goto(\"\/access\/{room.id}\")\n    }\n  else AuthorAccess.login(localKey, \"\/create\/restricted\")\n}\n\n\n\/** {1} Room chat access. *\/\n\nclient function checkPassword(string localKey, self, string username, Room.t room, _evt) {\n  password = Dom.get_value(#password) |> Uint8Array.decodeUTF8\n  salt = Uint8Array.decodeBase64(room.salt)\n  hash = TweetNacl.hash(Uint8Array.concat(password, salt)) |> Uint8Array.encodeBase64\n  checkHashedPassword(localKey, self, username, hash, room)\n}\n\n\/** Check the input password. *\/\nexposed function checkHashedPassword(string localKey, self, string username, string hash, Room.t room) {\n  if (Room.checkPassword(room, hash)) {\n    channel = Session.make_callback(ignore)\n    saveRoomSecretKey(localKey, self, room, chatAccess(localKey, username, room, channel))\n  } else {\n    Log.warning(\"[Chat]\", \"room login error\")\n    ip ip = HttpRequest.get_ip() ? 0.0.0.0\n    Metric.logBadlogin(room.id, \"Bad room {room.id}:{Room.name(room, \"\")} password\", ip)\n    #ask_pass_error = <div class=\"alert alert-danger\">Bad password<\/div>\n  }\n}\n\n\/**\n * Save the room secret key, derived from the room password using pbkdf2 algorithm.\n * NB: client function, since all encryption operations must be done client side.\n *\/\nclient function saveRoomSecretKey(localKey, self, Room.t room, xhtml page) {\n  Log.notice(\"[Chat]\", \"saveRoomSecretKey\")\n  \/\/ If room is password protected.\n  if (Room.passwordProtected(room)) {\n    password = Dom.get_value(#password)\n    salt = Uint8Array.decodeBase64(room.salt)\n    password = Uint8Array.decodeUTF8(password)\n    masterKey = TweetNacl.pbkdf2(password, salt, 5000, TweetNacl.SecretBox.keyLength)\n    secretKey = Uint8Array.decodeBase64(room.secretKey.message)\n    nonce = Uint8Array.decodeBase64(room.secretKey.nonce)\n    match (TweetNacl.SecretBox.open(secretKey, nonce, masterKey)) {\n      case {some: secretKey}: Client.SessionStorage.set(\"roomSecretKey\", Uint8Array.encodeBase64(secretKey)) \/\/ Store the room master key.\n      default: void\n    }\n    Log.notice(\"[Chat]\", \"stored secret key for room {room.id}\")\n    #main = page\n  \/\/ If room is restricted: extract the secretKey for current user.\n  } else\n    getSecretKey(localKey, self, function {\n      case {some: mySecretKey}:\n        match (StringMap.get(self, room.secretKeys)) {\n          case {some: ~{message: roomSecretKey, nonce}}:\n            nonce = Uint8Array.decodeBase64(nonce)\n            roomSecretKey = Uint8Array.decodeBase64(roomSecretKey)\n            roomPublicKey = Uint8Array.decodeBase64(room.publicKey)\n            match (TweetNacl.Box.open(roomSecretKey, nonce, roomPublicKey, mySecretKey)) {\n              case {some: roomSecretKey}:\n                Client.SessionStorage.set(\"roomSecretKey\", Uint8Array.encodeBase64(roomSecretKey))\n                #main = page\n              default:\n                Log.warning(\"[Chat]\", \"saveRoomSecretKey: invalid user secret key\")\n            }\n          default: Log.warning(\"[Chat]\", \"saveRoomSecretKey: no room secret key for user {self}\")\n        }\n      default: void\n    })\n}\n\n\/** Password input form. *\/\nboth function xhtml passwordInput(string title, string placeholder, check) {\n  <div id=#content>\n    <div class=\"pane-heading\">\n      <a type=\"button\" class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-right\">\n        <h3 class=\"pane-title\">{title}<\/h3>\n      <\/div>\n    <\/div>\n    <div class=\"conversations-list\">\n      <div id=#ask_pass_error><\/div>\n      <div id=#ask_password class=\"form-group\">\n        <input id=#password type=\"password\" autofocus=\"autofocus\"\n            placeholder=\"{placeholder}\"\n            class=\"form-control\"\n            onready={function(_) {Dom.give_focus(#password)}}\n            onnewline={check}\/>\n      <\/div>\n    <\/div>\n  <\/div>\n}\n\nprotected function xhtml roomPasswordInput(string localKey, string self, string username, room) {\n  passwordInput(\n    @toplevel.Room.name(room, \"\"),\n    \"Password for {@toplevel.Room.name(room, \"\")}\",\n    checkPassword(localKey, self, username, room, _)\n  )\n}\n\n\/** Join the input room. *\/\nclient function openRoomAccess(_evt) {\n  room = Dom.get_value(#name)\n  Client.goto(\"\/access\/{room}\")\n}\n\n\/** Join the input room. *\/\nclient function openRoom(Room.id id, _evt) {\n  Client.goto(\"\/access\/{id}\")\n}\n\n\/**\n * Access page: display a password input if needed, and redirect\n * to the room chat after checking the login.\n *\/\nprotected function roomAccess(string localKey, User.id self, Room.id room) {\n  Log.notice(\"[Chat]\", \"roomAccess [{room}]\")\n  username = AuthorAccess.toString(self)\n  match (Room.get(room)) {\n    case {some: room}:\n      match (Room.checkAccess(room, self)) {\n        case {restricted}:\n          channel = Session.make_callback(ignore)\n          saveRoomSecretKey(localKey, self, room, chatAccess(localKey, username, room, channel))\n        case {open}:\n          channel = Session.make_callback(ignore)\n          #main = chatAccess(localKey, username, room, channel)\n        case {pass}:\n          #main = roomPasswordInput(localKey, self, username, room)\n        case ~{error}:\n          #main = error\n      }\n    default:\n      #main = <div class=\"alert alert-danger\">Room {room} does not exist<\/div>\n  }\n}\n\n\/** Access form made into a resource. *\/\nexposed function roomAccessPage(string room) {\n  page = buildLoggedPage(\"\/access\/{room}\", roomAccess(_, _, room))\n  Resource.full_page_with_doctype(\"Access Room\", {html5}, page, headers, {success}, [])\n}\n\n\/** {1} Chat message handlers. **\/\n\n\/** Convert a source to html. *\/\nclient function sourceToHtml(User.id source) {\n  localKey = getLocalKey()\n  <div class=\"user\">{User.getHtmlAvatar(localKey, source)}<\/div>\n}\n\nclient function sourceName(User.id self, User.id source) {\n  if (self == source) \"\" else User.getUsername(source)\n}\n\n\/** Format a message into an xhtml element. *\/\nclient function formatMessage(User.id self, item) {\n  date = Date.to_formatted_string(Date.default_printer, item.date)\n  time = Date.to_string_time_only(item.date)\n  class = if (item.source == self) \"line-right\" else \"line-left\"\n  <div class=\"list-group-item\">\n    <div class=\"line {class}\">\n      {sourceToHtml(item.source)}\n      {Message.render(item)}\n      <small class=\"user-name\">{sourceName(self, item.source)} {time}<\/small>\n    <\/div>\n  <\/div>\n}\n\nclient function prependMessages(User.id self, items) {\n  \/\/ Get the initial length of the list.\n  length = Dom.get_scrollable_size(#conversation).y_px\n  scroll = Dom.get_scroll_top(#conversation)\n  \/\/ Prepend elements.\n  List.iter(function (item) {\n    #conversation += formatMessage(self, item)\n  }, items)\n  \/\/ Get new length and adjust scroll.\n  diff = Dom.get_scrollable_size(#conversation).y_px - length\n  Dom.set_scroll_top(#conversation, scroll+diff)\n}\n\n\/** Insert unidentified items in the chat thread. *\/\nclient function insertMessages(User.id self, stats, items) {\n  Log.notice(\"[Chat]\", \"inserting {List.length(items)} messages\")\n  updateStatistics(stats)\n  List.iter(function (item) {\n    #conversation =+ formatMessage(self, item)\n  }, items)\n  \/\/ TODO: scroll on #conversation div.\n  Dom.scroll_to_bottom(#conversation)\n}\n\n\/** Insert a system message. *\/\nclient @async function insertSystemMessage(stats, string text, Date.date sysdate) {\n  updateStatistics(stats)\n  date = Date.to_formatted_string(Date.default_printer, sysdate)\n  time = Date.to_string_time_only(sysdate)\n  #conversation =+\n    <div class=\"list-group-item\">\n      <small class=\"line-system\">{text} {time}<\/small>\n    <\/div>\n}\n\n\/** Handle room messages. *\/\nprotected function handleChatMessages(string localKey, Room.user self, Room.message event) {\n  match (event) {\n    \/\/ Messages and medium.\n    case ~{message}:\n      if (message.source != self.id)\n        notifyUser(localKey, self.id, message.room)\n      insertMessages(self.id, computeStatistics(), [message])\n    \/\/ Connection and disconnection messages.\n    case {connection: (user, room, _)} :\n      insertSystemMessage(computeStatistics(), Message.connection(room, user.username), Date.now())\n    case {disconnection: (user, room)} :\n      insertSystemMessage(computeStatistics(), Message.disconnection(room, user.username), Date.now())\n    \/\/ Statistics.\n    case {stats} : updateStatistics(computeStatistics())\n    default : void\n  }\n}\n\n\/**\n * {1} Manage room observers.\n *\n * We have horrendous problems with opera, it doesn't implement beforeunload...\n *\/\n\nserver roomObservers = Mutable.make(stringmap((Room.user, Room.t, Network.observer)) StringMap.empty)\n\n\/** Handle the active user disconnection. *\/\nclient function unobserveRoom(bool opera, Room.user self, Room.t room, Network.observer observer) {\n  Log.notice(\"[Chat]\", \"unobserveRoom: {room.id}\")\n  localKey = getLocalKey()\n  Room.disconnect(self, room.id) \/\/ Broadcast disconnection message.\n  Network.unobserve(observer) \/\/ Unbind present observer.\n  if (opera) {\n    roomObservers.set(StringMap.remove(localKey, roomObservers.get())) \/\/ Remove room observer.\n    Client.SessionStorage.remove(\"{localKey}CurrentRoomPointer\")\n  }\n}\n\n\/** Handle the active user connection. *\/\nclient function observeRoom(bool opera, Room.user self, Room.t room, channel, Network.observer observer) {\n  Log.notice(\"[Chat]\", \"observeRoom: {room.id}\")\n  localKey = getLocalKey()\n  \/\/ Unbind current observer.\n  if (opera) {\n    match (Client.SessionStorage.get(\"{localKey}CurrentRoomPointer\")) {\n      case {some: currentRoomId}:\n        if (currentRoomId == room.id)\n          match (StringMap.get(localKey, roomObservers.get())) {\n            case {some: (user, room, obs)}: unobserveRoom(opera, user, room, obs)\n            case {none}: void\n          }\n      default: void\n    }\n    Client.SessionStorage.set(\"{localKey}CurrentRoomPointer\", room.id) \/\/ Update room pointer.\n    roomObservers.set(StringMap.add(localKey, (self, room, observer), roomObservers.get())) \/\/ Update room observers.\n  }\n  Room.connect(self, room.id, channel) \/\/ Broadcast connection message.\n}\n\n\/** Initialize the chat. *\/\nexposed function initChat(string localKey, Room.user self, Room.t room, channel, _evt) {\n  opera = isOpera()\n  \/\/ Observe client.\n  observer = Room.observe(handleChatMessages(localKey, self, _), room.id)\n  observeRoom(opera, self, room, channel, observer)\n  \/\/ Observe disconnection.\n  Dom.bind_beforeunload_confirmation(function(_) {\n    unobserveRoom(opera, self, room, observer)\n    none\n  })\n  \/\/ Initialize OpaShare.\n  Upload.init(sendMedia(self, room.id))\n}\n\nprotected function xhtml chatAccess(string localKey, string username, Room.t room, channel) {\n  self = AuthorAccess.getCurrent(localKey)\n  title = Room.name(room, self)\n  user = ~{id: self, username}\n\n  function broadcast(string text, Message.encryption encryption) {\n    message = Message.new(self, room.id, ~{text}, encryption)\n    Room.broadcast(~{message}, room.id)\n    Metric.logMessage(self, room.id, text)\n  }\n  icon = if (room.secure) \"locked-o.svg\" else \"unlocked-o.svg\"\n  <>\n  <div id=#content onready={initChat(localKey, user, room, channel, _)} class=\"content dropzone\">\n    <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n    <div class=\"pane-heading\">\n      <a class=\"btn-icon pull-left\" onclick={openConversations} title=\"Back\">\n        <img src=\"\/resources\/img\/arrow-back.svg\"\/>\n      <\/a>\n      <div class=\"col-lg-right\">\n        <h3 class=\"pane-title\">{title}<img class=\"chat-encryption-icon\" src=\"\/resources\/img\/{icon}\"\/><\/h3>\n      <\/div>\n    <\/div>\n    <ul id=#conversation class=\"conversation list-group\" onready={MessageScroll.init(self, room.id, _)}><\/ul>\n    <div id=#notification class=\"chat-notification\"><\/div>\n  <\/div>\n  <div id=#chatbar class=\"chatbar\">\n      {Upload.html()}\n      <div class=\"col-lg-right\">\n        <input id=#entry autofocus=\"autofocus\"\n          class=\"form-control\"\n          onready={function(_) {Dom.give_focus(#entry)}}\n          onnewline={sendMessage(room.secure, broadcast, _)}\n          x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n  <\/div>\n  <\/>\n}\n\n\/**\n * Broadcast a message and clear the input.\n * @param encrypt enforce message encryption.\n *\/\nclient @async function sendMessage(bool encrypt, broadcast, _) {\n  if (encrypt)\n    match (Client.SessionStorage.get(\"roomSecretKey\")) {\n      case {some: secretKey}:\n        secretKey = Uint8Array.decodeBase64(secretKey)\n        publicKey = TweetNacl.Box.keyPairFromSecretKey(secretKey).publicKey\n        nonce = TweetNacl.randomBytes(TweetNacl.Box.nonceLength)\n        data = Uint8Array.decodeUTF8(Dom.get_value(#entry))\n        message = TweetNacl.Box.box(data, nonce, publicKey, secretKey) |> Uint8Array.encodeBase64\n        broadcast(message, {nonce: Uint8Array.encodeBase64(nonce), key: Uint8Array.encodeBase64(publicKey)})\n      default: Log.warning(\"[Chat]\", \"Could not send the message, encryption is not an available option.\")\n    }\n  else void broadcast(Dom.get_value(#entry), {none})\n  Dom.clear_value(#entry)\n}\n\n\/** Broadcast a media file. *\/\nprotected function sendMedia(Room.user self, Room.id room)(string name, string mimetype, int id) {\n  file = ~{name, mimetype, id}\n  message = Message.new(self.id, room, ~{file}, {none})\n  Room.broadcast(~{message}, room)\n}\n\n\/** Implement an infinite scroll. *\/\nmodule MessageScroll {\n\n  \/**\n   * Fetched pre-formatted user snippets from the database, ready for\n   * insertion in the view. The asynchronous status ensures that the list scroll\n   * remains fluid.\n   *\/\n  private exposed @async function void fetch(User.id self, Room.id room, Date.date ref) {\n    Log.notice(\"[Chat]\", \"Scroll.fetch: ref={ref} room={room} self={self}\")\n    page = Message.fetchPage(room, 20, ref)\n    prepend(self, room, page)\n  }\n\n  \/**\n   * Insert the loaded elements into the view.\n   * If more elements are to be expected, then restore the {scroll} handler, with updated\n   * parameters (set to fetch the following elements).\n   *\/\n  private client function prepend(self, room, page) {\n    if (page.size > 0) {\n      prependMessages(self, page.elts) \/\/ Prepend new elements.\n      Dom.bind(#conversation, {scroll}, scroll(self, room, page.last, _)) |> ignore\n    }\n  }\n\n  \/**\n   * Load more elements, and append them to the end of the list.\n   * Called exclusively by the function {scroll}, which detects the optimal moment for loading more elements.\n   * This function must NOT be async: we need to deactivate the {scroll} event handler, to avoid duplicate\n   * calls to {fetch}. {fetch} IS asynchronous, and this ensures the fluidity of the scroll.\n   *\/\n  private client function void load(self, room, ref) {\n    Dom.unbind_event(#conversation, {scroll}) \/\/ Unbind event to avoid multiple requests.\n    fetch(self, room, ref) \/\/ Send request for more elements.\n  }\n\n  \/**\n   * Called on scroll events. Detect when less than a certain amount of elements remain in the list\n   * to know when to trigger the function to fetch more user.\n   * User height is estimated at 80px for the purpose of determining the number of elements left in the list.\n   * When less than three times the amount of visible user remain in the list, new elements are fetched.\n   * Same as {load}, this function needn't be asynchronous.\n   *\/\n  private client function void scroll(self, room, ref, _evt) {\n    list = #conversation\n    current = Dom.get_scroll_top(list)\n    height = Dom.get_height(list)\n    mvisible = height\/80\n    mleft = current\/80\n    if (mleft < 3*mvisible) load(self, room, ref)\n  }\n\n  \/** Initialize the infinite scolling. *\/\n  function init(self, room, _evt) {\n    load(self, room, Date.now())\n  }\n\n} \/\/ END MESSAGESCROLL\n\n\n\n\/** {1} Server launch. *\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\n\/** Page headers. *\/\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/**\n * Create the page structure, and set up an initializer.\n * The login is automatically checked, and the page redirects to a login box\n * if no user is connected.\n *\/\nprotected function xhtml buildLoggedPage(string redirect, init) {\n  \/\/ Retrieve access token from query parameters (if provided).\n  \/\/ The access token is inserted into SSO service.\n  url = HttpRequest.get_url()\n  token = match (url) {\n    case {some: url}: List.assoc(\"oauth_token\", url.query)\n    default: none\n  }\n  <div id=#main class=\"main-view\" onready={initClient(token, checkLogin(redirect, init, _), _)}\/>\n}\n\n\/**\n * Set the access token if provided, and initialize the client's local key.\n * Check login state and retrieve credentials.\n *\/\nclient function void initClient(option(string) token, callback, evt) {\n  match (token) {\n    case {some: token}:\n      localKey = getLocalKey()\n      if (AuthorAccess.setAccessToken(localKey, token)) {\n        Client.SessionStorage.set(\"chat_provider_login\", \"true\")\n      }\n    default: void\n  }\n  callback(evt)\n}\n\n\/**\n * Insert the logout button. The button is inserted only if the login wasn't automatic\n * (from the identity provider). This is determined by the value of the local storage variable\n * 'chat_provider_login'.\n *\/\nclient function insertLogout(localKey, _evt) {\n  match (Client.SessionStorage.get(\"chat_provider_login\")) {\n    case {some: \"true\"}: void\n    default:\n      #loginout_button =\n        <button class=\"btn btn-default\"\n            onclick={function (_) { AuthorAccess.logout(localKey, \"\/\") }}>\n          Logout\n        <\/button>\n  }\n}\n\n\/**\n * Check whether the login state is defined, and redirect the\n * user accordingly.\n *\/\nexposed function checkLogin(string url, onready, _evt) {\n  localKey = getLocalKey()\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user))\n    onready(localKey, user)\n  else AuthorAccess.login(localKey, url)\n}\n\n\/** Execute the function only if the active user if correctly logged in. *\/\nexposed function ifLogin(string localKey, iflogin) {\n  user = AuthorAccess.getCurrent(localKey)\n  if (AuthorAccess.isLogged(user)) iflogin()\n  else void\n}\n\n\/**\n * Return the avatar of the user as a dataUrl.\n * If no avatar is attributed to the user, the dataUrl will be the reference\n * 'resources\/img\/default-user.svg'.\n *\/\nprotected function downloadAvatar(User.id user) {\n  match (HttpRequest.get_url()) {\n    case {some: url}:\n      match (List.assoc(\"localKey\", url.query)) {\n        case {some: localKey}:\n          AuthorAccess.getAvatar(localKey, user)\n        default: @static_resource(\"resources\/img\/default-user.svg\")\n      }\n    default: @static_resource(\"resources\/img\/default-user.svg\")\n  }\n}\n\n\/** Download a file. *\/\nprotected function downloadFile(int id) {\n  match (Upload.get(id)) {\n    case {some: file}:\n      Resource.binary(file.content, file.mimetype) |>\n      Resource.add_header(_, {content_disposition: {attachment: file.name}})\n    default:\n      conversationsPage()\n  }\n}\n\n\/** Access metrics. *\/\nfunction metrics(string room, option(string) timestamp) {\n  match (Room.find({named: room})) {\n    case {some: room}:\n      messages = Metric.fetch(room.id, 255, 0, timestamp)\n      RPC.Json.json json = {List: List.map(Metric.toJson, messages)}\n      Resource.json(json)\n    case {none}:\n      Resource.json({Record:[(\"error\", {String: \"Room {room} does not exist\"})]})\n  }\n}\n\n\/** Global dispatcher. *\/\ndispatcher = parser {\n  \/\/ SSO reserved URLs.\n  case _special=AuthorAccess.special_uris : conversationsPage()\n  case special = AuthorAccess.special_uris2 : special\n  \/\/ Specific URLs.\n  case \"\/avatar\/\" id=((!\"?\" .)*) (\"?\" .*)?: downloadAvatar(Text.to_string(id))\n  case \"\/file\/\" id=Rule.integer: downloadFile(id)\n  case \"\/access\/\" room=Rule.ident: roomAccessPage(room)\n  case \"\/create\/restricted\": restrictedRoomCreatorPage()\n  case \"\/create\/named\": namedRoomCreatorPage()\n  case \"\/metrics\/\" room=Rule.ident \"\/\"? timestamp=Rule.ident? : metrics(room, timestamp)\n  \/\/ Default to front page.\n  case _url=(.*): conversationsPage()\n    \/\/ startPage(<><\/>)\n}\n\n\/** Server configuration. *\/\nserverConf =\n  port = Utils.config(\"{PEPS_DIR}\/apps\/chat\/port\") |> Option.bind(Int.of_string_opt, _)\n  conf =\n    if (no_ssl == \"true\") Server.http\n    else\n      { Server.https with\n        name: \"opachat\",\n        encryption: {\n          certificate : \"{PEPS_DIR}\/server.crt\",\n          private_key : \"{PEPS_DIR}\/server.key\",\n          password : \"\"\n        } }\n  match (port) {\n    case {some: port}: {conf with ~port}\n    default: conf\n  }\n\n\/\/ Start the server.\nServer.start(serverConf, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : dispatcher } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"b0462aca9750280c75a0c030e3ffb693ad63b9c9","subject":"renaming","message":"renaming\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"61ef326e322e924634da44f24609e5f86e303378","subject":"glMatrix clean","message":"glMatrix clean\n","repos":"MLstate\/webgldemo","old_file":"src\/glMatrix\/glMatrix.opa","new_file":"src\/glMatrix\/glMatrix.opa","new_contents":"\ntype vec3.private = external;\ntype vec3 = (float, float, float);\n\ntype mat3 = external;\ntype mat4 = external;\n\nvec3 = {{\n     from_public : vec3 -> vec3.private = %% glMatrixPlugin.vec3_private_from_public %% ;\n}}\n\nmat3 = {{\n     str : mat3 -> string = %% glMatrixPlugin.mat3_str %%\n     create : -> mat3 = %% glMatrixPlugin.mat3_create %% ;\n     transpose : mat3, mat3 -> void = %% glMatrixPlugin.mat3_transpose %% ;\n     to_list : mat3 -> list(float) = %% glMatrixPlugin.mat3_to_list %% ;\n}}\n\nmat4 = {{\n     to_list : mat4 -> list(float) = %% glMatrixPlugin.to_list %% ;\n     str : mat4 -> string = %% glMatrixPlugin.str %%\n     create : -> mat4 = %% glMatrixPlugin.create %% ;\n     perspective : float, float, float, float, mat4 -> void = %% glMatrixPlugin.perspective %% ;\n     identity : mat4 -> void = %% glMatrixPlugin.identity %% ;\n     translate : mat4, vec3.private, mat4 -> void = %% glMatrixPlugin.translate %% ;\n     lookAt : vec3.private, vec3.private, vec3.private, mat4 -> void = %% glMatrixPlugin.lookAt %% ;\n     multiply : mat4, mat4, mat4 -> void = %% glMatrixPlugin.multiply %% ;\n     toInverseMat3 : mat4, mat3 -> void = %% glMatrixPlugin.toInverseMat3 %% ;\n}}\n","old_contents":"\ntype vec3.private = external;\ntype vec3 = (float, float, float);\n\ntype mat3 = external;\ntype mat4 = external;\n\nvec3 = {{\n     from_public : vec3 -> vec3.private = %% glMatrixPlugin.vec3_private_from_public %% ;\n}}\n\nmat3 = {{\n     str : mat3 -> string = %% glMatrixPlugin.mat3_str %%\n     create : -> mat3 = %% glMatrixPlugin.mat3_create %% ;\n     transpose : mat3, mat3 -> void = %% glMatrixPlugin.mat3_transpose %% ;\n     to_list : mat3 -> list(float) = %% glMatrixPlugin.mat3_to_list %% ;\n}}\n\nmat4 = {{\n     \/\/to_llarray : mat4 -> llarray(float) = %% glMatrixPlugin.to_llarray %% ;\n     to_list : mat4 -> list(float) = %% glMatrixPlugin.to_list %% ;\n     str : mat4 -> string = %% glMatrixPlugin.str %%\n     create : -> mat4 = %% glMatrixPlugin.create %% ;\n     perspective : float, float, float, float, mat4 -> void = %% glMatrixPlugin.perspective %% ;\n     identity : mat4 -> void = %% glMatrixPlugin.identity %% ;\n     translate : mat4, vec3.private, mat4 -> void = %% glMatrixPlugin.translate %% ;\n     lookAt : vec3.private, vec3.private, vec3.private, mat4 -> void = %% glMatrixPlugin.lookAt %% ;\n     multiply : mat4, mat4, mat4 -> void = %% glMatrixPlugin.multiply %% ;\n     toInverseMat3 : mat4, mat3 -> void = %% glMatrixPlugin.toInverseMat3 %% ;\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9cf6c9c2e77bb3ee38b872d6f980160a116e4cc2","subject":"[Design] general layout iprovement","message":"[Design] general layout iprovement\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <div class=\"panel_btm\">\n               <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span>\n               <\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span><\/label>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"737e3712f32262c8eb568ac869e335bb5e7ddf76","subject":"[enhance] logout -> redirect to \/","message":"[enhance] logout -> redirect to \/\n","repos":"MLstate\/MindChat,Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\ntype author = { system } \/ { author : string }\ntype message = { author : author\n               ; text : string\n               ; date : Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast({~author}, Dom.get_value(#entry))\n   logout() =\n     do broadcast({system}, \"{author} has left the room\")\n     Client.goto(\"\/\")\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) =\n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast({system}, \"{author} is connected to the room\")\n   <div id=#main>\n     <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n     <input id=#author onnewline={go}\/>\n     <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\ntype author = { system } \/ { author : string }\ntype message = { author : author\n               ; text : string\n               ; date : Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast({~author}, Dom.get_value(#entry))\n   logout() =\n     do broadcast({system}, \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) =\n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast({system}, \"{author} is connected to the room\")\n   <div id=#main>\n     <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n     <input id=#author onnewline={go}\/>\n     <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"7c9f03b15afd2851b035e97c2724063307029111","subject":"randomize the list given by the server","message":"randomize the list given by the server\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do \n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string }\n\/ { with_address_list : list(string) -> void }\n;\n\ntype Central.Modelers.sync.message = \n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n  get_address_list(state) =\n    StringMap.To.key_list(state.files)\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; client_id=_ } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    | { ~with_address_list } ->\n      l = List.sort_by((_ -> Random.int(max_int)), `Central.Modelers`.get_address_list(state));\n      _ = with_address_list(l)\n      { unchanged }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do \n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string }\n\/ { with_address_list : list(string) -> void }\n;\n\ntype Central.Modelers.sync.message = \n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n  get_address_list(state) =\n    StringMap.To.key_list(state.files)\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; client_id=_ } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    | { ~with_address_list } ->\n      _ = with_address_list(`Central.Modelers`.get_address_list(state))\n      { unchanged }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"626aad449f9887e843121650fd854a27a0bdb4b8","subject":"inversed copyright order","message":"inversed copyright order\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  OpaShare.init(file_uploaded(user))\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, <><\/>, {success},\n    []\n  )\n}\n\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser }\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2011 MLstate\n    Copyright \u00a9 2012 Frederic Ye\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  OpaShare.init(file_uploaded(user))\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, <><\/>, {success},\n    []\n  )\n}\n\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser }\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"e71c3c58f19e81f9e33d70fa73ebeceae095e52c","subject":"re-organization","message":"re-organization\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime_duration = Date.between(System.gmt_launch_date, Date.gmt_now())\n  uptime = Date.of_duration(uptime_duration)\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(System.gmt_launch_date, Date.gmt_now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ea0c608cd7efe8e5ee6a1d8dfd9f7cc5e02b1a1e","subject":"moved the official repository to github\/MLstate","message":"moved the official repository to github\/MLstate\n","repos":"MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  Copyright \u00a9 2011-2013 MLstate\n    \n    This code is covered by the MIT license. See the LICENSE file.\n*\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             type=\"text\"\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  Copyright \u00a9 2011-2013 MLstate\n    \n    This code is covered by the MIT license. See the LICENSE file.\n*\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             type=\"text\"\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"347f7bf4eaaae90dd17525fec24793d3aa948bc1","subject":"loading scene from state","message":"loading scene from state\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(void)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); address=Random.string(8); clients=List.empty };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(void)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); address=Random.string(8); clients=List.empty };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = Scene.empty(SHF, state.my_id);\n      base = Scene.add_object(base, Scene.cube(base, (0.0, 0.0, -3.0)));\n      base = Scene.add_object(base, Scene.cube(base, (3.0, 0.0, 0.0)));\n      base = Scene.add_object(base, Scene.cube(base, (6.0, 0.0, 0.0)));\n      do Session.send(sync_channel, { load=base });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"a38d09357e20881f0f4a661b6c64100de247eaa8","subject":"some utils function on scene","message":"some utils function on scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c4bb31fdaed9b88a24e209e4f96e737343201ee9","subject":"the client do apply patch on the scene","message":"the client do apply patch on the scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n\n  others_add_cube(scene, where) : Scene.Client.scene =\n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, {add_cube; ~where}));\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, {selection_change_color; ~new_color}));\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  others_add_cube(scene, where) : Scene.Client.scene = { scene with others=Scene.add_object(scene.others, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}) };\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"0fe9eb9788027cd24b3523c3665a6be0e29e5277","subject":"indent","message":"indent\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          eng\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = match get_mode() with\n    | {pick=pos; ~cont} ->\n      eng = match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          eng\n        end\n      eng\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      eng\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"5ead53036d26fcdc3a1ec80c5ee016ec0f7f50a2","subject":"put back an error","message":"put back an error\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Log.debug(\"normalMatrix\", mat3.str(normalMatrix));\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Log.debug(\"mvMatrix\", mat4.str(mvMatrix));\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Log.debug(\"normalMatrix\", mat3.str(normalMatrix));\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Log.debug(\"mvMatrix\", mat4.str(mvMatrix));\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> void\/\/error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ace56a511e518cdcf98b680d7a9c51eb96df30e0","subject":"moving function","message":"moving function\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cc09b3c69bec4030f09750a70fa14642759e5ef8","subject":"code formatting","message":"code formatting\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author : string\n               ; text : string\n               ; date : Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n     <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n     <input id=#author onnewline={go}\/>\n     <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"9df25227c824160e0c8c4fe803b98ef195b56844","subject":"if we guess address that mean that nobody look at this scene","message":"if we guess address that mean that nobody look at this scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };  \n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id, scene_url) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); address=Random.string(8); clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };  \n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"d1d323cccca9b4e0205aa61c99054ed902f1c355","subject":"a little easier light","message":"a little easier light\n","repos":"MLstate\/webgldemo","old_file":"src\/custom_shaders.opa","new_file":"src\/custom_shaders.opa","new_contents":"","old_contents":"","returncode":0,"stderr":"unknown","license":"agpl-3.0","lang":"Opa"}
{"commit":"fa76be76e0cc3a11eba51610936994d6b90daec6","subject":"* opa\/pfff_logger.opa: comment","message":"* opa\/pfff_logger.opa: comment\n","repos":"mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,rpau\/pfff,Hyunha\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,rpau\/pfff,mutantzombie\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *\n * todo: too slow, need to use \/db[cmd][date]?. or use mongo?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/henry: is this efficient?\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/henry: is this efficient?\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"aea13ce30b546fc0b4e319ba0bb4b2ea3bc1eb30","subject":"indent","message":"indent\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n        {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n        {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"aac7f4aa03dc9ed018c58260d7e0bd84a3aa68e4","subject":"moving this piece of code inside an onready","message":"moving this piece of code inside an onready\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene) =\n        (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n        (channel, (-> get_state().scene)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg)));\n    base =\n      <div \/>\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    base =\n      <div \/>\n      <canvas width={width} height={height} id=#{id_canvas_canvas} ><\/canvas>;\n    do ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n      end ;\n    res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n    if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg)));\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"42e0f9f83ab99d485cf1e3085bbe869db055eda1","subject":"updating picking to support multiple view","message":"updating picking to support multiple view\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f2.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_boxes(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      who = which_boxes(viewbox, pos);\n      do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"5c214787d16419c00fc0a74579105d9a7a4f4014","subject":"injecting a session","message":"injecting a session\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      on_message_mouse_listener(msg) =\n        match msg with\n        | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n          f(gpu_picker_regsiter) =\n            do lock_mouse_event.set(true);\n            gpu_picker_regsiter((abs_full_pos, (possible_target -> do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target; last_coord_fixer=Option.none}); lock_mouse_event.set(false)))) ; \n          do Option.switch(f, void, support_gpu_picking.get());\n          { continue }\n        | { mouseup; event=_; ~gl_pos; ~switch } ->\n          msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n          do Session.send(channel, msg);\n          { continue }\n        end ;\n      mouse_listener =\n        channel_mouse_listener = Session.make_stateless(on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener(msg) = \n        match msg with\n        | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n          f(gpu_picker_regsiter) =\n            do lock_mouse_event.set(true);\n            gpu_picker_regsiter((abs_full_pos, (possible_target -> do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target; last_coord_fixer=Option.none}); lock_mouse_event.set(false)))) ; \n          Option.switch(f, void, support_gpu_picking.get())\n        | { mouseup; event=_; ~gl_pos; ~switch } ->\n          msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"4c32bd7265eb7540641c357219b7da6bb6d5f6e0","subject":"adding some icon to tool","message":"adding some icon to tool\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        set(apply_changes({state with ~modeler}, [{selection=[{this},{color}]}]))\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) =\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address };\n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">&#8598; Select<\/span>, <span class=\"button\">&#10065; Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">&#8598; Select<\/span>, <span class=\"button active\">&#10065; Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        set(apply_changes({state with ~modeler}, [{selection=[{this},{color}]}]))\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) =\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address };\n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"08857d6dd6cd5950c42cd205d0981e4c5fe5d786","subject":"a get follow by a quick set will trigger an false warning","message":"a get follow by a quick set will trigger an false warning\n","repos":"MLstate\/webgldemo","old_file":"src\/common\/observer.opa","new_file":"src\/common\/observer.opa","new_contents":"\n\ntype notify('a) =\n  { si : (-> bool); then_do : ('a -> void); else_autoclean } ;\n\n@abstract type subject('a) =\n  { state : 'a\n  ; viewers : channel( {attach : notify('a)} \/ {propagate : 'a} \/ {check : 'a})\n  ; id : int\n  } ;\n\n\nObservable =\n\n  sl(g : -> void) = sleep(1, g) ;\n\n  make(a : 'a) = (\n    randomize_list(l : list) : list = List.sort_by((_ -> Random.int(300)), l);\n    id = Random.int(100000) ;\n    f(state : 'state, msg : 'msg) : Session.instruction('state) = (\n      match msg with\n      | { check=fun_val_a } ->\n        {} =\n          if (fun_val_a != state.recall) then\n            Log.warning(\"TT\", \"(#17982) WARNING in Observable, a 'functional' subject is out of synchronisation with his session state\") ;\n        { unchanged }\n      | { attach=f } ->\n        \/\/ here we do not test if the notifier exists\n        {} = sl(-> f.then_do(state.recall)) ;\n        { set={ state with stack = List.cons(f, state.stack) } }\n      | { propagate=na } ->\n        \/\/{} = ttlog(\">> propagate id='{id}'\") ;\n        {} =\n          state =\n            new_stack =\n              filter(z : notify) = if z.si() then Option.some(z) else Option.none ;\n              List.filter_map(filter, state.stack) ;\n            { state with stack=new_stack } ;\n          tmp() =\n            h_iter(notify) = (\n              \/\/{} = ttlog(\"< propagate id='{id}'\");\n              notify.then_do(na)) ;\n            List.iter(h_iter, randomize_list(state.stack)) ;\n          sl(tmp) ;\n        { set={ state with recall=na } }\n      end );\n    viewers = Session.make({ stack=List.empty; recall=a }, f) ;\n    { state=a; ~viewers; ~id } : subject );\n\n\n  get_state(c : subject('a)) : 'a =\n    tmp = c.state ;\n    {} = Session.send((c).viewers, {check=tmp})\n    tmp ;\n\n  register(obs : notify('a), c : subject('a)) : void =\n    Session.send((c).viewers, { attach=obs }) ;\n\n  change_state(x : 'a, c : subject('a)) : subject('a) = (\n    \/\/{} = ttlog(\"change state to '{magic_serialize(x)}'  ;  \\\"id={magic_serialize(c.id)}\\\"\") ;\n    {} = Session.send((c).viewers, { propagate=x }) ;\n    { c with state=x } : subject );\n\n  get_id(c : subject('a)) : int = (c).id ;\n\n  { ~make\n  ; ~get_state\n  ; ~register\n  ; ~change_state\n  ; ~get_id\n  } ;\n\/\/ end of Observable\n\n","old_contents":"\n\ntype notify('a) =\n  { si : (-> bool); then_do : ('a -> void); else_autoclean } ;\n\n@abstract type subject('a) =\n  { state : 'a\n  ; viewers : channel( {attach : notify('a)} \/ {propagate : 'a} \/ {check : 'a})\n  ; id : int\n  } ;\n\n\nObservable =\n\n  sl(g : -> void) = sleep(1, g) ;\n\n  make(a : 'a) = (\n    randomize_list(l : list) : list = List.sort_by((_ -> Random.int(300)), l);\n    id = Random.int(100000) ;\n    f(state : 'state, msg : 'msg) : Session.instruction('state) = (\n      match msg with\n      | { check=fun_val_a } ->\n        {} =\n          if (fun_val_a != state.recall) then\n            Log.warning(\"TT\", \"(#17982) WARNING in Observable, a 'functional' subject is out of synchronisation with his session state\") ;\n        { unchanged }\n      | { attach=f } ->\n        \/\/ here we do not test if the notifier exists\n        {} = sl(-> f.then_do(state.recall)) ;\n        { set={ state with stack = List.cons(f, state.stack) } }\n      | { propagate=na } ->\n        \/\/{} = ttlog(\">> propagate id='{id}'\") ;\n        {} =\n          state =\n            new_stack =\n              filter(z : notify) = if z.si() then Option.some(z) else Option.none ;\n              List.filter_map(filter, state.stack) ;\n            { state with stack=new_stack } ;\n          tmp() =\n            h_iter(notify) = (\n              \/\/{} = ttlog(\"< propagate id='{id}'\");\n              notify.then_do(na)) ;\n            List.iter(h_iter, randomize_list(state.stack)) ;\n          sl(tmp) ;\n        { set={ state with recall=na } }\n      end );\n    viewers = Session.make({ stack=List.empty; recall=a }, f) ;\n    { state=a; ~viewers; ~id } : subject );\n\n\n  get_state(c : subject('a)) : 'a =\n    tmp = c.state ;\n    {} = sleep(33, (-> Session.send((c).viewers, {check=tmp}))) ;\n    tmp ;\n\n  register(obs : notify('a), c : subject('a)) : void =\n    Session.send((c).viewers, { attach=obs }) ;\n\n  change_state(x : 'a, c : subject('a)) : subject('a) = (\n    \/\/{} = ttlog(\"change state to '{magic_serialize(x)}'  ;  \\\"id={magic_serialize(c.id)}\\\"\") ;\n    {} = Session.send((c).viewers, { propagate=x }) ;\n    { c with state=x } : subject );\n\n  get_id(c : subject('a)) : int = (c).id ;\n\n  { ~make\n  ; ~get_state\n  ; ~register\n  ; ~change_state\n  ; ~get_id\n  } ;\n\/\/ end of Observable\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c8e3c8a4af884ad5d09d62b8245775c01788cd79","subject":"[clean] removed some logs","message":"[clean] removed some logs\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private\nusers = Mutable.make([]:list(user))\n\n@private\nlaunch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.core.date\nimport stdlib.web.client\nimport stdlib.system\n\nGITHUB_URL = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ntype user = (int, string) \/\/ user_id, user_name\ntype author = { system } \/ { author : user }\ntype message = {\n  author : author\n  text : string\n  date : Date.date\n  event : string\n}\ntype client_channel = channel(void)\ntype msg = {message : message} \/ {connection : (user, client_channel)} \/ {disconnection : (user, client_channel)} \/ {stats}\n\ndb \/history : intmap(message)\n\n@publish room = Network.cloud(\"room\") : Network.network(msg)\n\n@private\nusers = Mutable.make([]:list(user))\n\n@private\nlaunch_date = Date.now()\n\n@server\nserver_observe(message) =\n  match message\n  {connection=(user, client_channel)} ->\n    do jlog(\"connection {user}\")\n    do users.set(List.add(user, users.get()))\n    do Network.broadcast({stats}, room)\n    do Session.on_remove(client_channel, (->\n      do jlog(\"auto disconnection {user}\")\n      do server_observe({disconnection=(user, client_channel)})\n      void\n    ))\n    void\n  {disconnection=(user, _client_channel)} ->\n    do jlog(\"disconnection {user}\")\n    do users.set(List.remove(user, users.get()))\n    do Network.broadcast({stats}, room)\n    void\n  _ -> void\n\n@server\n_ = Network.observe(server_observe, room)\n\n@client\nupdate_stats((uptime, mem)) =\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nupdate_users(users) =\n  list = List.fold((elt, acc -> <>{acc}<li>{elt.f2}<\/li><\/>), users, <><\/>)\n  do Dom.transform([#users <- <>Users: {List.length(users)}<\/>])\n  do Dom.transform([#user_list <- <ul>{list}<\/ul>])\n  void\n\n@client\nmessage_update(stats)(messages:list(message)) =\n  do update_stats(stats)\n  do List.iter(message->\n    line = <div class=\"line {message.event}\">\n              <span class=\"date\">{Date.to_string_time_only(message.date)}<\/span>\n              { match message.author with\n                | {system} -> <span class=\"system\"\/>\n                | {~author} -> <span class=\"user\">{author.f2}<\/span> }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    do Dom.transform([#conversation +<- line])\n    void\n  , messages)\n  Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n\n@server\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\n@server\nbuild_page(header, content) =\n  <div id=#header>\n    <div id=#logo\/>\n    <div>{header}<\/div>\n  <\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\ndo_broadcast(broadcast)(_) = send_message(broadcast)\n\n@server\nmem() = System.get_memory_usage()\/(1024*1024)\n\ncompute_stats() =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n\n@server\nclient_observe(msg) =\n  match msg\n  {~message} -> message_update(compute_stats())([message])\n  {stats} ->\n    do update_stats(compute_stats())\n    do update_users(users.get())\n    void\n  _ -> void\n\n@server\ninit_client(user, client_channel) =\n  obs = Network.observe(client_observe, room)\n  _ = Network.broadcast({connection=(user, client_channel)}, room)\n  do Dom.bind_beforeunload_confirmation(_ ->\n    do Network.broadcast({disconnection=(user, client_channel)}, room)\n    do Network.unobserve(obs)\n    {none}\n  )\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-20, history_list)\n  do message_update(compute_stats())(history)\n  void\n\n@server\nlaunch_chat(user:user, client_channel) =\n  broadcast = broadcast({author=user}, _, _)\n  build_page(\n    <a class=\"button github\" href=\"{GITHUB_URL}\" target=\"_blank\">Fork me on GitHub !<\/a>,\n    <div id=#conversation onready={_ -> init_client(user, client_channel)}\/>\n    <div id=#user_list\/>\n    <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n    <div id=#chatbar>\n      <input id=#entry onready={_ -> Dom.give_focus(#entry)} onnewline={do_broadcast(broadcast)}\/>\n      <span class=\"button\" onclick={do_broadcast(broadcast)}>Send<\/span>\n    <\/div>\n  )\n\n@client\ndo_join(user_id, launch)(_) =\n  user = (user_id, Dom.get_value(#author))\n  client_channel = Session.make_callback(ignore)\n  Dom.transform([\n    #main <- <>Loading chat...<\/>,\n    #main <- launch(user, client_channel)\n  ])\n\n@server\nmain() =\n  user_id = Random.int(65536) \/\/ a user identifier\n  <div id=#main>{\n    build_page(\n      <h1>Wecome to OpaChat<\/h1>,\n      <span>Choose your name: <\/span>\n      <input id=#author onready={_ -> Dom.give_focus(#author)} onnewline={do_join(user_id, launch_chat)}\/>\n      <span class=\"button\" onclick={do_join(user_id, launch_chat)}>Join<\/span>\n    )\n  }<\/div>\n\nserver =\n  Server.one_page_bundle(\n    \"OpaChat - a chat built with Opa\",\n    [@static_resource_directory(\"resources\")], \/\/ include resources directory\n    [\"resources\/style.css\"], \/\/ web application CSS\n    main\n  )\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"16a789b3f9b02c6f15a129faef1e76a7c6a78016","subject":"[CSS] attach stylesheet to scene","message":"[CSS] attach stylesheet to scene\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_gui_area = \"gui_area\" ;\n\ndefault_css = css\n#{id_gui_area} {\n}\n;\n\nCss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_modeler_static_page(scene_url) =\n  width = 500;\n  height = 500;\n  <div class=\"container\">\n    <div id=#{id_gui_area} onready={_ -> GuiModeler.init(scene_url, SHF(), #{id_gui_area}, width, height)}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nresources = Rule.of_map(@static_include_directory(\".\/src\/css\"))\n\nurls =\n  parser\n  | \"\/\" r=resources -> r\n  | \"\/scene\/\" scene_url=(.*) ->\n    Resource.styled_page(\"3D creation\", [\"\/src\/css\/style.css\"],server_modeler_static_page(Text.to_string(scene_url)))\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_gui_area = \"gui_area\" ;\n\ndefault_css = css \n#{id_gui_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_modeler_static_page(scene_url) =\n  width = 500;\n  height = 500;\n  <div>\n    <div id=#{id_gui_area} onready={_ -> GuiModeler.init(scene_url, SHF(), #{id_gui_area}, width, height)}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | \"\/scene\/\" scene_url=(.*) ->\n    html(\"3D creation\", server_modeler_static_page(Text.to_string(scene_url)))\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"63e8f9debd8a426a720f3af11eae92f4f8138531","subject":"hack, bug fix, removing a webgl warning","message":"hack, bug fix, removing a webgl warning\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"a5f8547e8d9a90b20740817b084d3e7ed117cc46","subject":"the client send patch to the server","message":"the client send patch to the server\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span><\/label>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span><\/label>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"baafe544581be30fdeef91f8093d200dc24d3eb1","subject":"removing unused variable","message":"removing unused variable\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8d187e58c5c68544467bd39a18313570d3fbb8d8","subject":"changing background color","message":"changing background color\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas) : void =\n  match Webgl.getContext(canvas, \"experimental-webgl\") with\n  | { some=gl } ->\n    squareVertexPositionBuffer = initBuffers(gl);\n    repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n    shaderProgram = initShaders(gl);\n    \/\/Clear screen and make everything black\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n\nserver_start_static_page() =\n  <div>\n    <h1>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas) : void =\n  match Webgl.getContext(canvas, \"experimental-webgl\") with\n  | { some=gl } ->\n    squareVertexPositionBuffer = initBuffers(gl);\n    repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n    shaderProgram = initShaders(gl);\n    \/\/Clear screen and make everything black\n    do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n\nserver_start_static_page() =\n  <div>\n    <h1>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"339e75616e1642edf4a710d702a204c9f0651734","subject":"removing debug log","message":"removing debug log\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Log.debug(\"normalMatrix\", mat3.str(normalMatrix));\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Log.debug(\"mvMatrix\", mat4.str(mvMatrix));\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"357f12106a13af77d04e9fa934bac3585589ad01","subject":"using it","message":"using it\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"80e92084f5a2fd3f725fa545da5861400f06e2a2","subject":"removing old clear_nera_far field","message":"removing old clear_nera_far field\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(views, who);\n          mvMatrix = mat4.copy(some_settings.m) ;\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, (0.0, 1.0, 0.0), scene, {pick});\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=some_settings.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some((this_viewbox, some_settings.clear_near_far, who)));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v((this_viewbox, this_clear_near_far, this_who)) =\n            match this_who with\n            | {out} | {_3D} -> void\n            | _ -> \n              if this_viewbox.inbox(bad_pos) then\n                cont(this_clear_near_far(last_coord_fixer(bad_pos)))\n              else\n                Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\")\n            end;\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ncompute_an_eye_into_ortho(mat, cs, clear_near_far) =\n  do mat4.translate(mat, vec3.from_public(cs.target), mat);\n  tmp = \n    h = cs.eye.f3;\n    clear_near_far((h, h, h));\n  _ = mat4.scale(mat, vec3.from_public(tmp), mat);\n  mat ;\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(views, who);\n          mvMatrix = mat4.copy(some_settings.m) ;\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, (0.0, 1.0, 0.0), scene, {pick});\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=some_settings.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some(({ this_viewbox with clear_near_far=some_settings.clear_near_far}, who)));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v((this_viewbox, this_who)) =\n            match this_who with\n            | {out} | {_3D} -> void\n            | _ -> \n              if this_viewbox.inbox(bad_pos) then\n                cont(this_viewbox.clear_near_far(last_coord_fixer(bad_pos)))\n              else\n                Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\")\n            end;\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f0756cb0c924ec9ac71effcc0f6999cbf735df6f","subject":"making the color preview bigger","message":"making the color preview bigger\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target; ~coord_fixer } -> \n          Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target; last_coord_fixer=coord_fixer})\n        | { mouseup; ~pos } -> \n          msg = {modeler_apply_possible_move; where={x=pos.f1; y=pos.f2; z=pos.f3} };\n          Session.send(channel, msg)\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"dd7cda64bcc9623ab9a0c20732718b7221a4b139","subject":"[mindwave] placing face icon on the glow, replacing misc icon, titles, user's list and github buttons style update","message":"[mindwave] placing face icon on the glow, replacing misc icon, titles, user's list and github buttons style update\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap.core\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-left\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"   \n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash = <><\/>\n  \/\/ <div id=\"flashContent\">\n  \/\/   <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"550\" height=\"400\" id=\"FlashToJs\" align=\"middle\">\n  \/\/     <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n  \/\/     <param name=\"quality\" value=\"high\" \/>\n  \/\/     <param name=\"bgcolor\" value=\"#ffffff\" \/>\n  \/\/     <param name=\"play\" value=\"true\" \/>\n  \/\/     <param name=\"loop\" value=\"true\" \/>\n  \/\/     <param name=\"wmode\" value=\"window\" \/>\n  \/\/     <param name=\"scale\" value=\"showall\" \/>\n  \/\/     <param name=\"menu\" value=\"true\" \/>\n  \/\/     <param name=\"devicefont\" value=\"false\" \/>\n  \/\/     <param name=\"salign\" value=\"\" \/>\n  \/\/     <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n  \/\/     {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n  \/\/     <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"550\" height=\"400\">\n  \/\/       <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n  \/\/       <param name=\"quality\" value=\"high\" \/>\n  \/\/       <param name=\"bgcolor\" value=\"#ffffff\" \/>\n  \/\/       <param name=\"play\" value=\"true\" \/>\n  \/\/       <param name=\"loop\" value=\"true\" \/>\n  \/\/       <param name=\"wmode\" value=\"window\" \/>\n  \/\/       <param name=\"scale\" value=\"showall\" \/>\n  \/\/       <param name=\"menu\" value=\"true\" \/>\n  \/\/       <param name=\"devicefont\" value=\"false\" \/>\n  \/\/       <param name=\"salign\" value=\"\" \/>\n  \/\/       <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n  \/\/       {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n  \/\/       <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n  \/\/               <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n  \/\/       <\/a>\n  \/\/       {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n  \/\/     <\/object>\n  \/\/     {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n  \/\/   <\/object>\n  \/\/ <\/div>\n\nserver @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div> <+>\n    mindwave_flash\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap.core\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"icon icon-white icon-cancel\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon16 {preT}\"\/>\n    <span class=\"ns-icon16 {preR}\"\/>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li>{user.name} <span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span><\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash = <><\/>\n  \/\/ <div id=\"flashContent\">\n  \/\/   <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"550\" height=\"400\" id=\"FlashToJs\" align=\"middle\">\n  \/\/     <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n  \/\/     <param name=\"quality\" value=\"high\" \/>\n  \/\/     <param name=\"bgcolor\" value=\"#ffffff\" \/>\n  \/\/     <param name=\"play\" value=\"true\" \/>\n  \/\/     <param name=\"loop\" value=\"true\" \/>\n  \/\/     <param name=\"wmode\" value=\"window\" \/>\n  \/\/     <param name=\"scale\" value=\"showall\" \/>\n  \/\/     <param name=\"menu\" value=\"true\" \/>\n  \/\/     <param name=\"devicefont\" value=\"false\" \/>\n  \/\/     <param name=\"salign\" value=\"\" \/>\n  \/\/     <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n  \/\/     {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n  \/\/     <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"550\" height=\"400\">\n  \/\/       <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n  \/\/       <param name=\"quality\" value=\"high\" \/>\n  \/\/       <param name=\"bgcolor\" value=\"#ffffff\" \/>\n  \/\/       <param name=\"play\" value=\"true\" \/>\n  \/\/       <param name=\"loop\" value=\"true\" \/>\n  \/\/       <param name=\"wmode\" value=\"window\" \/>\n  \/\/       <param name=\"scale\" value=\"showall\" \/>\n  \/\/       <param name=\"menu\" value=\"true\" \/>\n  \/\/       <param name=\"devicefont\" value=\"false\" \/>\n  \/\/       <param name=\"salign\" value=\"\" \/>\n  \/\/       <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n  \/\/       {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n  \/\/       <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n  \/\/               <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n  \/\/       <\/a>\n  \/\/       {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n  \/\/     <\/object>\n  \/\/     {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n  \/\/   <\/object>\n  \/\/ <\/div>\n\nserver @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div> <+>\n    mindwave_flash\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"56fd190c28fd0421684b4fab5c13d52791cb6f56","subject":"util function","message":"util function\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); address=Random.string(8); clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };  \n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(void)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); address=Random.string(8); clients=List.empty };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"02a89377391fe91621a1c39c3e9202abc1d3f72a","subject":"now rendering loop can change eng","message":"now rendering loop can change eng\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = match get_mode() with\n    | {pick=pos; ~cont} ->\n      eng = match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          eng\n        end\n      eng\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      eng\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"462bb0e3970fc41a32410e9c0ad34e8b2739fc89","subject":"debug a little the view bow size","message":"debug a little the view bow size\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_boxes(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      who = which_boxes(viewbox, pos);\n      do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\nwhich_boxes(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      who = which_boxes(viewbox, pos);\n      do Log.debug(\"Picking\", \"in box: '{who}'\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"1517d034f95840660ee6093ebf32899645057485","subject":"the saving the coord fixer in engine","message":"the saving the coord fixer in engine\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          eng\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"6d110015de0f51d81a70ee7df15c03188b714ae6","subject":"[fix] renaming of packages in opa","message":"[fix] renaming of packages in opa\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <div class=\"panel_btm\">\n               <label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import widgets.colorpicker\nimport widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:5px; width:5px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <div class=\"panel_btm\">\n               <label>Color: <div id=#{id}>{ WColorpicker.html(id, config) }<\/div><\/label>           \n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"402564318019a1908bdbd7eacb1c4b8d823233c4","subject":"removing hack code","message":"removing hack code\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.some(c(i)))), scene);\n      void\n    end ;\n\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      do Log.debug(\"Picking\", \"...\");\n      do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n      do jlog(\"Color is: { pickedColor }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal})\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n\/\/@client pluto = Mutable.make_client(Option.none:option(Webgl.WebGLRenderbuffer));\n@client pluti = Mutable.make_client(Option.none:option(Webgl.WebGLTexture));\n\/\/client pluto = Mutable.make_client(Option.some(Magic.id(42) : Webgl.WebGLRenderbuffer));\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  \/\/do Webgl.texParameteri(gl, Webgl.TEXTURE_2D(gl), Webgl.TEXTURE_MAG_FILTER(gl), Webgl.GLenum_to_GLint(gl, Webgl.LINEAR(gl)));\n  \/\/do Webgl.texParameteri(gl, Webgl.TEXTURE_2D(gl), Webgl.TEXTURE_MIN_FILTER(gl), Webgl.GLenum_to_GLint(gl, Webgl.LINEAR(gl)));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  \/\/do pluto.set(Option.some(renderPickBuffer));\n  do pluti.set(Option.some(pickTexture));\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      \/\/do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), pluti.get());\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      \/\/do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), pluto.get());\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.some(c(i)))), scene);\n      \/\/Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none)\n      void\n    end ;\n\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      \/\/do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Log.debug(\"Picking\", \"...\");\n      do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n      do jlog(\"Color is: { pickedColor }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal})\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"865c29ae47bd2cac1b3ed4ef50d12d8cd566ffa6","subject":"removing a warning on make_own","message":"removing a warning on make_own\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty } }\n          | { mouseup; event=_; ~gl_pos; ~switch } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing } -> do f(); { unchanged }\n            | { running_down=l } ->\n              { set={ running_down=List.cons(f, l) } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing } -> do Log.debug(\"\", \"\"); { unchanged }\n            | { running_down=l } -> do List.iter((f -> f()), l); { set={ nothing } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        on_message_mouse_listener(state_mouse, msg, my_channel) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(my_channel, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty } }\n          | { mouseup; event=_; ~gl_pos; ~switch } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing } -> do f(); { unchanged }\n            | { running_down=l } ->\n              { set={ running_down=List.cons(f, l) } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing } -> do Log.debug(\"\", \"\"); { unchanged }\n            | { running_down=l } -> do List.iter((f -> f()), l); { set={ nothing } }\n            end\n          end;\n        channel_mouse_listener = Session.make_own({nothing}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c1e4f6619c8d9fbd511ffac8fe471e6f036b05cb","subject":"ordering a little this code","message":"ordering a little this code\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"","old_contents":"","returncode":0,"stderr":"unknown","license":"agpl-3.0","lang":"Opa"}
{"commit":"6ba6ac38cf222569c6c5390f23a768f915d9fee5","subject":"delete debug onready","message":"delete debug onready\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"bf15009976211840a12dc09f5a15ae73f56762e0","subject":"removed a warning","message":"removed a warning\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"a9ca13c9db65caea2622b08ef217f9413c857e75","subject":"just replace the necessary part of the page","message":"just replace the necessary part of the page\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"76fffee3e2f8e78e08ce3ad3b72115f8b4c7e586","subject":"function to change the mode","message":"function to change the mode\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where.x},{where.z}) perhaps on the target: '{possible_target}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where; ~possible_target} -> { set=Modeler.use_tool(state, where, possible_target) }\n    \/\/| _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z; ~possible_target } -> Session.send(channel, {click_on_scene; where={~x; ~z}; ~possible_target})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f10e0faf97b17f5e616be0cd24ad6ebb9c3b3251","subject":"quick change to test the scene getter","message":"quick change to test the scene getter\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n\n  do mat4.translate(mvMatrix, vec3.from_public(scene), mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->vec3), squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    scene = get_scene() ;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> (0.0, -4.0, 0.0)), squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene_and_register(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2fe18a052db822b844b6a68677fb560040073803","subject":"removing light from 2d view","message":"removing light from 2d view\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"e1285813819545ef06443e2e9989456be01a9d53","subject":"little renaming","message":"little renaming\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f86aa6e41d00f94456d1538b237f663ae1af10f3","subject":"[clean] ws","message":"[clean] ws\n","repos":"MLstate\/MindChat,Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype user = string\ntype users_action = {add : user} \/ {remove : user} \/ { clean } \/ {ping : user}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\ntype msg = {message : message} \/ {users : stringmap(Date.date)}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(msg)\n\nmanage_users(user_list : stringmap(Date.date), action : users_action) =\n  clean(key, value, acc) =\n    time = Duration.in_seconds(Duration.between(value, Date.now()))\n    if time > 20. then\n       do broadcast({system}, \"leave\", \"{key} has left the room (timeout)\")\n       acc\n    else\n       Map.add(key, value, acc)\n\n\n  match action with\n   | {add = u} ->       newmap = Map.add(u, Date.now(),user_list)\n                        do broadcast({system}, \"join\", \"{u} is connected to the room\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {remove = u} ->    newmap = Map.remove(u, user_list)\n                        do broadcast({system}, \"leave\", \"{u} has left the room (quit)\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {clean} ->         newmap = Map.fold(clean, user_list, Map.empty)\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {ping = u} ->      temp = Map.remove(u, user_list)\n                        {set = Map.add(u, Date.now(), temp)}\n\nusers = Session.cloud(\"users\", Map.empty, manage_users)\n\ndo Scheduler.timer(10000, ( -> Session.send(users, {clean})))\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(msg: msg) =\ndo update_stats(mem)\nmatch msg with\n | {message = x} ->\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n | ~{users} -> list = Map.fold((elt, _, acc -> <>{acc}<li>{elt}<\/li><\/>), users, <><\/>)\n               Dom.transform([#user_list <- <ul>{list}<\/ul>])\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\nping(fun)=\n  Scheduler.timer(15000, fun)\n\nlaunch(author:string) =\n  init_client() =\n    do Session.send(users, {add=author})\n    do ping( -> Session.send(users, {ping=author}))\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter( (a -> user_update(get_memory_usage()\/(1024*1024))({message = a})) , history)\n    Network.add_callback(user_update(get_memory_usage()\/(1024*1024)), room)\n   logout() =\n     do Session.send(users, {remove=author})\n     Client.goto(\"\/\")\n   do_broadcast = broadcast({author=author}, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#user_list \/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload() =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  Dom.transform([#main <- launch(author)])\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load()}\/>\n       <span class=\"button\" onclick={_ -> load()}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype user = string\ntype users_action = {add : user} \/ {remove : user} \/ { clean } \/ {ping : user}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\ntype msg = {message : message} \/ {users : stringmap(Date.date)}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(msg)\n\nmanage_users(user_list : stringmap(Date.date), action : users_action) =\n  clean(key, value, acc) =\n    time = Duration.in_seconds(Duration.between(value, Date.now()))\n    if time > 20. then \n       do broadcast({system}, \"leave\", \"{key} has left the room (timeout)\")\n       acc\n    else\n       Map.add(key, value, acc)\n       \n\n  match action with\n   | {add = u} ->       newmap = Map.add(u, Date.now(),user_list)\n                        do broadcast({system}, \"join\", \"{u} is connected to the room\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {remove = u} ->    newmap = Map.remove(u, user_list)\n                        do broadcast({system}, \"leave\", \"{u} has left the room (quit)\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {clean} ->         newmap = Map.fold(clean, user_list, Map.empty)\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {ping = u} ->      temp = Map.remove(u, user_list)\n                        {set = Map.add(u, Date.now(), temp)}\n\nusers = Session.cloud(\"users\", Map.empty, manage_users)\n\ndo Scheduler.timer(10000, ( -> Session.send(users, {clean})))\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(msg: msg) =  \ndo update_stats(mem)\nmatch msg with\n | {message = x} ->\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n | ~{users} -> list = Map.fold((elt, _, acc -> <>{acc}<li>{elt}<\/li><\/>), users, <><\/>)\n               Dom.transform([#user_list <- <ul>{list}<\/ul>])\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\nping(fun)=\n  Scheduler.timer(15000, fun)\n\nlaunch(author:string) =\n  init_client() =\n    do Session.send(users, {add=author})\n    do ping( -> Session.send(users, {ping=author}))\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter( (a -> user_update(get_memory_usage()\/(1024*1024))({message = a})) , history)\n    Network.add_callback(user_update(get_memory_usage()\/(1024*1024)), room)\n   logout() =\n     do Session.send(users, {remove=author})\n     Client.goto(\"\/\")\n   do_broadcast = broadcast({author=author}, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>, \n     <div id=#conversation onready={_ -> init_client()}\/>    \n     <div id=#user_list \/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload() =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  Dom.transform([#main <- launch(author)])\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load()}\/>\n       <span class=\"button\" onclick={_ -> load()}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2166a4b1034e76c0ce12558b5258de138b1bdfdb","subject":"drawing some line to separate the box","message":"drawing some line to separate the box\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x: object.simple; y: object.simple; z: object.simple }; grids: { _YX: object.simple; _YZ: object.simple;  _ZX: object.simple } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode, ogrid) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do Option.iter((z -> display_simple(eng, z)), ogrid);\n      do display_simple(eng, repcoords.x);\n      do display_simple(eng, repcoords.y);\n      do display_simple(eng, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick}, Option.none);\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      gr = eng.static_buffers.grids;\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal}, Option.some(gr._YX));\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal}, Option.some(gr._YZ));\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal}, Option.some(gr._ZX));\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal}, Option.some(gr._ZX));\n      do\n        m = mat4.create();\n        do Webgl.viewport(gl, 0, 0, eng.canvas.width, eng.canvas.height);\n        do mat4.ortho(0., float_of_int(eng.canvas.width-1), 0., float_of_int(eng.canvas.height), -10., 10., m);\n        g = float_of_int;\n        tmp = Lines.create(eng.context, [g(viewbox._YZ.x),0., 0., g(viewbox._YZ.x), g(eng.canvas.height),0., 0.,g(viewbox._YZ.h),0., g(eng.canvas.width),g(viewbox._YZ.h),0. ], (0., 0., 0.));\n        mvMatrix = mat4.create();\n        do mat4.identity(mvMatrix);\n        do setMatrixUniforms(eng.context, eng.shaderProgram, m, mvMatrix);\n        display_simple(eng, tmp);\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      grids =\n        f(g) = Lines.grid(gl, -10, 10, 1, 10.0, g, (0.8, 0.8, 0.8));\n        { _YX=f((a,b -> [a,b,0.0])); _YZ=f((a,b -> [0.0,a,b])); _ZX=f((a,b -> [a,0.0,b])) };\n      { start with static_buffers.grids=grids;\n        static_buffers.repcoords=\n        { x=Lines.create(gl, [0.0, 0.0, 0.0, 5.0, 0.0, 0.0], (1.0, 0.0, 0.0)); y=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 5.0, 0.0], (0.0, 1.0, 0.0));\n          z=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 0.0, 5.0], (0.0, 0.0, 1.0)) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    do Webgl.clearColor(gl, 1.0, 1.0, 1.0, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x: object.simple; y: object.simple; z: object.simple }; grids: { _YX: object.simple; _YZ: object.simple;  _ZX: object.simple } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode, ogrid) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do Option.iter((z -> display_simple(eng, z)), ogrid);\n      do display_simple(eng, repcoords.x);\n      do display_simple(eng, repcoords.y);\n      do display_simple(eng, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick}, Option.none);\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      gr = eng.static_buffers.grids;\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal}, Option.some(gr._YX));\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal}, Option.some(gr._YZ));\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal}, Option.some(gr._ZX));\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal}, Option.some(gr._ZX));\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      grids =\n        f(g) = Lines.grid(gl, -10, 10, 1, 10.0, g, (0.8, 0.8, 0.8));\n        { _YX=f((a,b -> [a,b,0.0])); _YZ=f((a,b -> [0.0,a,b])); _ZX=f((a,b -> [a,0.0,b])) };\n      { start with static_buffers.grids=grids;\n        static_buffers.repcoords=\n        { x=Lines.create(gl, [0.0, 0.0, 0.0, 5.0, 0.0, 0.0], (1.0, 0.0, 0.0)); y=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 5.0, 0.0], (0.0, 1.0, 0.0));\n          z=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 0.0, 5.0], (0.0, 0.0, 1.0)) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    do Webgl.clearColor(gl, 1.0, 1.0, 1.0, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"e1099a8054f2eb40f1a8192634219d4dd82798de","subject":"removing other warning","message":"removing other warning\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do support_gpu_picking.set(Option.some(gpu_picker_register));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c915d3531ccc6e124fee6b63cb329cc495726f5e","subject":"[mindwave] set mindwave timer to 1sec","message":"[mindwave] set mindwave timer to 1sec\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap.core\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\nTHINKING_THRESHOLD = 70\nRELAXATION_THRESHOLD = 70\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"off icon icon-white icon-cancel\"\/>\n  case {some:(t, r)}:\n    <span class=\"on icon icon-white icon-user\"\/>\n    <span>{t}<\/span><>-<\/><span>{r}<\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      t > THINKING_THRESHOLD && thinking <= THINKING_THRESHOLD ||\n      t <= THINKING_THRESHOLD && thinking > THINKING_THRESHOLD ||\n      r > RELAXATION_THRESHOLD && relaxation <= RELAXATION_THRESHOLD ||\n      r <= RELAXATION_THRESHOLD && relaxation > RELAXATION_THRESHOLD\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li>{user.name} <span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span><\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  if (Option.is_some(user.mindwave)) {\n    Log.info(\"MindWave\", \"present\")\n    Scheduler.timer(MW_TIMER, function(){check_mindstate(user)})\n  } else {\n    Log.info(\"MindWave\", \"missing\")\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap.core\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 5000\nTHINKING_THRESHOLD = 70\nRELAXATION_THRESHOLD = 70\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"off icon icon-white icon-cancel\"\/>\n  case {some:(t, r)}:\n    <span class=\"on icon icon-white icon-user\"\/>\n    <span>{t}<\/span><>-<\/><span>{r}<\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      t > THINKING_THRESHOLD && thinking <= THINKING_THRESHOLD ||\n      t <= THINKING_THRESHOLD && thinking > THINKING_THRESHOLD ||\n      r > RELAXATION_THRESHOLD && relaxation <= RELAXATION_THRESHOLD ||\n      r <= RELAXATION_THRESHOLD && relaxation > RELAXATION_THRESHOLD\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li>{user.name} <span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span><\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  if (Option.is_some(user.mindwave)) {\n    Log.info(\"MindWave\", \"present\")\n    Scheduler.timer(MW_TIMER, function(){check_mindstate(user)})\n  } else {\n    Log.info(\"MindWave\", \"missing\")\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9bf9e8749411403fc502e69a87f7f63c93d969d8","subject":"bugfix, to avoid some invalid matrice full of Nan and Infinity","message":"bugfix, to avoid some invalid matrice full of Nan and Infinity\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; cube:Scene.objects } \/ { change_color; id: hidden_id; new_color: ColorFloat.color } \/ {move_object; id: hidden_id; where:(float, float, float) } \/ { delete_object; id: hidden_id } ;\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = \n  { add_cube; where: {x: float; y: float; z:float } } \n\/ { selection_change_color; new_color: ColorFloat.color } \n\/ { selection_change; possible_target: option(hidden_id) } \n\/ { possible_move; where: {x: float; y: float; z:float }}\n\/ { selection_delete };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.views = {_YX: mat4; _YZ: mat4; _ZX: mat4; _3D: mat4};\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int;\n  views: Modeler.views;\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~cube } -> add_object(scene, cube)\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    | {move_object; ~where; ~id} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with cube=where });\n      Option.switch(f, scene, otarget)\n    | {delete_object; ~id} ->\n      (_, scene) = extract_object(scene, id);\n      scene\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } -> \n      command = { add_cube; cube={ cube=(where.x, where.y, where.z); color=ColorFloat.random(); id=scene.others.CPF() } } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { possible_move; ~where } ->\n      f(sel) = { pid=scene.others.CPF(); command={ move_object; where=(where.x, where.y, where.z); id=sel.id } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    | { selection_delete } -> \n      f(sel) = { pid=scene.others.CPF(); command={ delete_object; id=sel.id } };\n      Option.map(f, scene.selection)\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n  \n  do_possible_move(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, { possible_move; ~where });\n\n  selection_delete(scene) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_delete});\n\n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id, ratio_h_w) : Modeler.modeler =\n    g(rot, scaler) =\n      tmp = mat4.create();\n      tmp_x = 1.;\n      do mat4.ortho(-tmp_x, tmp_x, -ratio_h_w, ratio_h_w, -10., 10., tmp);\n      tmp = rot(tmp);\n      mat4.scale(tmp, vec3.from_public(scaler), tmp);\n    tmp_scaler = 1. \/ 10.;\n    _YX = g(identity, (tmp_scaler, tmp_scaler, 1.0));  \/\/ we want the left border to be at -10, and the rigth at 10\n    _YZ = g(m -> mat4.rotateY(m, (90. * Math.PI \/ 180.), m), (1.0, tmp_scaler, tmp_scaler));\n    _ZX = g(m -> mat4.rotateX(m, (90. * Math.PI \/ 180.), m), (tmp_scaler, 1.0, tmp_scaler));\n    _3D =\n      tmp_pMatrix = mat4.create();\n      do mat4.perspective(45., 1. \/ ratio_h_w, 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public((10.0, 5.0, 15.0)), vec3.from_public((0., 0., 0.)), vec3.from_public((0.0, 1.0, 0.0)), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix ;\n    views = { ~_YX; ~_YZ; ~_ZX; ~_3D };\n    { address=scene_url; ~scene; tool={selection}; ~client_id; ~views } ;\n  empty(scene_url, client_id, ratio_h_w) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id, ratio_h_w);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  do_possible_move(modeler, where) : (Modeler.modeler, option(Scene.patch)) =\n    match modeler.tool with\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.do_possible_move(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {add_cube} -> (modeler, Option.none)\n    end;\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n  scene_delete_selection(modeler) : (Modeler.modeler, option(Scene.patch)) =\n    (scene, opatch) = `Scene.Client`.selection_delete(modeler.scene);\n    ({ modeler with ~scene }, opatch);\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; cube:Scene.objects } \/ { change_color; id: hidden_id; new_color: ColorFloat.color } \/ {move_object; id: hidden_id; where:(float, float, float) } \/ { delete_object; id: hidden_id } ;\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = \n  { add_cube; where: {x: float; y: float; z:float } } \n\/ { selection_change_color; new_color: ColorFloat.color } \n\/ { selection_change; possible_target: option(hidden_id) } \n\/ { possible_move; where: {x: float; y: float; z:float }}\n\/ { selection_delete };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.views = {_YX: mat4; _YZ: mat4; _ZX: mat4; _3D: mat4};\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int;\n  views: Modeler.views;\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~cube } -> add_object(scene, cube)\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    | {move_object; ~where; ~id} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with cube=where });\n      Option.switch(f, scene, otarget)\n    | {delete_object; ~id} ->\n      (_, scene) = extract_object(scene, id);\n      scene\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } -> \n      command = { add_cube; cube={ cube=(where.x, where.y, where.z); color=ColorFloat.random(); id=scene.others.CPF() } } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { possible_move; ~where } ->\n      f(sel) = { pid=scene.others.CPF(); command={ move_object; where=(where.x, where.y, where.z); id=sel.id } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    | { selection_delete } -> \n      f(sel) = { pid=scene.others.CPF(); command={ delete_object; id=sel.id } };\n      Option.map(f, scene.selection)\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n  \n  do_possible_move(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, { possible_move; ~where });\n\n  selection_delete(scene) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_delete});\n\n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id, ratio_h_w) : Modeler.modeler =\n    g(rot, scaler) =\n      tmp = mat4.create();\n      tmp_x = 1.;\n      do mat4.ortho(-tmp_x, tmp_x, -ratio_h_w, ratio_h_w, -10., 10., tmp);\n      tmp = rot(tmp);\n      mat4.scale(tmp, vec3.from_public(scaler), tmp);\n    tmp_scaler = 1. \/ 10.;\n    _YX = g(identity, (tmp_scaler, tmp_scaler, 0.0));  \/\/ we want the left border to be at -10, and the rigth at 10\n    _YZ = g(m -> mat4.rotateY(m, (90. * Math.PI \/ 180.), m), (0.0, tmp_scaler, tmp_scaler));\n    _ZX = g(m -> mat4.rotateX(m, (90. * Math.PI \/ 180.), m), (tmp_scaler, 0.0, tmp_scaler));\n    _3D =\n      tmp_pMatrix = mat4.create();\n      do mat4.perspective(45., 1. \/ ratio_h_w, 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public((10.0, 5.0, 15.0)), vec3.from_public((0., 0., 0.)), vec3.from_public((0.0, 1.0, 0.0)), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix ;\n    views = { ~_YX; ~_YZ; ~_ZX; ~_3D };\n    { address=scene_url; ~scene; tool={selection}; ~client_id; ~views } ;\n  empty(scene_url, client_id, ratio_h_w) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id, ratio_h_w);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  do_possible_move(modeler, where) : (Modeler.modeler, option(Scene.patch)) =\n    match modeler.tool with\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.do_possible_move(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {add_cube} -> (modeler, Option.none)\n    end;\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n  scene_delete_selection(modeler) : (Modeler.modeler, option(Scene.patch)) =\n    (scene, opatch) = `Scene.Client`.selection_delete(modeler.scene);\n    ({ modeler with ~scene }, opatch);\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"135d8b837be2488b012e4b923fbfc2f22f98a1d8","subject":"simplify","message":"simplify\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; cube:Scene.objects } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~cube } -> add_object(scene, cube)\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } as command -> \n      command = { add_cube; cube={ cube=(where.x, where.y, where.z); color=ColorFloat.random(); id=scene.others.CPF() } } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float }; color: ColorFloat.color; id: hidden_id } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where; ~color; ~id} -> add_object(scene, {cube=(where.x, where.y, where.z); ~id; ~color})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } as command -> \n      command = { add_cube; ~where; color=ColorFloat.random(); id=scene.others.CPF(); } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"6eb7d5ad7def3371277a1c9aaa0edec12ad73d4b","subject":"updated github info + removed a warning","message":"updated github info + removed a warning\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n        {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n        {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\nimport mindwave\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\nMW_TIMER = 1000\n\n\/** Types **\/\n\ntype mindstate = (int, int)\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n        {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n        {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, has_mindwave, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: if (has_mindwave) some((0, 0)) else none,\n  }\n  broadcast = function(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  has_mindwave = MindWave.is_present()\n  enter_chat(name, has_mindwave, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  \/\/ case \"\/file\/\" key=Rule.integer:\n  \/\/   match (OpaShare.get(key)) {\n  \/\/   case {some:file}:\n  \/\/     Resource.binary(file.content, file.mimetype)\n  \/\/     |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n  \/\/   default: start()\n  \/\/   }\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"1305942273aaa70109aa81ec98ade76345dba0f1","subject":"comment","message":"comment\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"7ac757795fa118a0bdcf3daba12b462115a120e5","subject":"doing the same for sync msg","message":"doing the same for sync msg\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        set(apply_changes({state with ~modeler}, [{selection=[{this},{color}]}]))\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) =\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address };\n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) =\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address };\n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    apply_changes(modeler, cs) = apply_changes({ state with ~modeler }, cs);\n    reset_subjects(modeler) = apply_changes(modeler, [{selection=[{this}, {color}] }]);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        set(reset_subjects(modeler))\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      set(apply_changes(modeler, [{tool}]))\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      set(apply_changes(modeler, [{selection=[{color}]}]))\n    | {modeler_apply_possible_move; ~where; ~switch } ->\n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"b3a61a42bbcb368509bd4ae4d8bf1b2c813d8200","subject":"adding the grid as static resource and displaying them","message":"adding the grid as static resource and displaying them\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x: object.simple; y: object.simple; z: object.simple }; grids: { _YX: object.simple; _YZ: object.simple;  _ZX: object.simple } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode, ogrid) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do Option.iter((z -> display_simple(eng, z)), ogrid);\n      do display_simple(eng, repcoords.x);\n      do display_simple(eng, repcoords.y);\n      do display_simple(eng, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick}, Option.none);\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      gr = eng.static_buffers.grids;\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal}, Option.some(gr._YX));\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal}, Option.some(gr._YZ));\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal}, Option.some(gr._ZX));\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal}, Option.some(gr._ZX));\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      grids =\n        f(g) = Lines.grid(gl, -10, 10, 1, 10.0, g, (0.8, 0.8, 0.8));\n        { _YX=f((a,b -> [a,b,0.0])); _YZ=f((a,b -> [0.0,a,b])); _ZX=f((a,b -> [a,0.0,b])) };\n      { start with static_buffers.grids=grids;\n        static_buffers.repcoords=\n        { x=Lines.create(gl, [0.0, 0.0, 0.0, 5.0, 0.0, 0.0], (1.0, 0.0, 0.0)); y=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 5.0, 0.0], (0.0, 1.0, 0.0));\n          z=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 0.0, 5.0], (0.0, 0.0, 1.0)) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x: object.simple; y: object.simple; z: object.simple } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do display_simple(eng, repcoords.x);\n      do display_simple(eng, repcoords.y);\n      do display_simple(eng, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display_pickable(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=Lines.create(gl, [0.0, 0.0, 0.0, 5.0, 0.0, 0.0], (1.0, 0.0, 0.0)); y=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 5.0, 0.0], (0.0, 1.0, 0.0));\n          z=Lines.create(gl, [0.0, 0.0, 0.0, 0.0, 0.0, 5.0], (0.0, 0.0, 1.0)) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"66a2a05b2186dcd02af89a65fbbeec00a88004f4","subject":"adding a private tag","message":"adding a private tag\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=scene.CPF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=scene.CPF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8071bd398f92b217673895631bb498ec4dad12ea","subject":"engine start to have his own low level scene","message":"engine start to have his own low level scene\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((_, (pos, object)) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((_, (pos, object)) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = \n      f(p) = \n        match List.find((z -> z.f2.id == p.id), eng.scene) with\n        | { ~some } -> (p, some)\n        | { none } -> (p, (p.cube, Cube.create(gl, p.id)))\n        end;\n      List.map(f, get_scene());\n    eng = { eng with scene=List.map((z -> z.f2), scene) };\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl, p.id))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"0b2eee9f820999d0bb445fcaf51088c5e4cc4f68","subject":"adding some coercion","message":"adding some coercion\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"52fd46f82680c39974614ef7ba364653b416d9e0","subject":"completing command with color","message":"completing command with color\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float }; color: ColorFloat.color } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where; ~color} -> add_object(scene, {cube=(where.x, where.y, where.z); id=scene.CPF(); ~color})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } as command -> \n      command = { add_cube; ~where; color=ColorFloat.random() } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=scene.CPF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"4ceebf101f847e5618f1673a2a744fa76faa4f25","subject":"* opa\/pfff_logger.opa: comment","message":"* opa\/pfff_logger.opa: comment\n","repos":"egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,rpau\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to allow concurrent access to the db? need run multiple opa?\n *    use opa-cloud with its load balancer? but is db itself concurrent?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to allow concurrent access to the db?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"2c57f8215fd9cba37675f856b21565e6781d2b8a","subject":"indentation","message":"indentation\n","repos":"MLstate\/webgldemo","old_file":"src\/glMatrix\/glMatrix.opa","new_file":"src\/glMatrix\/glMatrix.opa","new_contents":"\ntype vec3.private = external;\ntype vec3 = (float, float, float);\ntype vec4.private = external;\ntype vec4 = (float, float, float, float);\n\ntype mat3 = external;\ntype mat4 = external;\n\nvec3 = {{\n  from_public : vec3 -> vec3.private = %% glMatrixPlugin.vec3_private_from_public %% ;\n  to_public : vec3.private -> vec3 = %% glMatrixPlugin.vec3_private_to_public %% ;\n  str : vec3.private -> string = %% glMatrixPlugin.vec3_str %% ;\n  apply: vec3, ({f1}\/{f2}\/{f3}), (float -> float) -> vec3 = (src, where, f ->\n    match where : ({f1}\/{f2}\/{f3}) with\n    | {f1} -> { src with f1=f(src.f1) }\n    | {f2} -> { src with f2=f(src.f2) }\n    | {f3} -> { src with f3=f(src.f3) }\n    end);\n  get(src, switch) = match switch : ({f1}\/{f2}\/{f3}) with\n    | {f1} -> src.f1\n    | {f2} -> src.f2\n    | {f3} -> src.f3\n    end;\n}}\n\nvec4 = {{\n  from_public : vec4 -> vec4.private = %% glMatrixPlugin.vec4_private_from_public %% ;\n  to_public : vec4.private -> vec4 = %% glMatrixPlugin.vec4_private_to_public %% ;\n  str : vec4.private -> string = %% glMatrixPlugin.vec4_str %% ;\n}}\n\nmat3 = {{\n  Low = {{\n    transpose : mat3, mat3 -> mat3 = %% glMatrixPlugin.mat3_transpose %% ;\n  }}\n\n  str : mat3 -> string = %% glMatrixPlugin.mat3_str %%\n  create : -> mat3 = %% glMatrixPlugin.mat3_create %% ;\n  to_list : mat3 -> list(float) = %% glMatrixPlugin.mat3_to_list %% ;\n  transpose(mat) : mat3 = Low.transpose(mat, create());\n}}\n\nmat4 = {{\n  Low= {{\n    to_list : mat4 -> list(float) = %% glMatrixPlugin.mat4_to_list %% ;\n    str : mat4 -> string = %% glMatrixPlugin.mat4_str %%\n    create : -> mat4 = %% glMatrixPlugin.mat4_create %% ;\n    perspective : float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_perspective %% ;\n    identity : mat4 -> mat4 = %% glMatrixPlugin.mat4_identity %% ;\n    translate : mat4, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_translate %% ;\n    lookAt : vec3.private, vec3.private, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_lookAt %% ;\n    multiply : mat4, mat4, mat4 -> mat4 = %% glMatrixPlugin.mat4_multiply %% ;\n    toInverseMat3 : mat4, mat3 -> mat3 = %% glMatrixPlugin.mat4_toInverseMat3 %% ;\n\n    inverse : mat4, mat4 -> mat4 = %% glMatrixPlugin.mat4_inverse %% ;\n    multiplyVec3 : mat4, vec3.private, vec3.private -> vec3.private = %% glMatrixPlugin.mat4_multiplyVec3 %% ;\n    copy : mat4 -> mat4 = %% glMatrixPlugin.mat4_copy %% ;\n    multiplyVec4 : mat4, vec4.private, vec4.private -> vec4.private = %% glMatrixPlugin.mat4_multiplyVec4 %% ;\n    frustum : float, float, float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_frustum %% ;\n    ortho : float, float, float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_ortho %% ;\n\n    rotateX : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateX %% ;\n    rotateY : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateY %% ;\n    rotateZ : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateZ %% ;\n\n    scale : mat4, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_scale %% ;\n  }}\n\n  to_list = Low.to_list;\n  str = Low.str\n  create : -> mat4 = Low.create;\n  identity() : mat4 = Low.identity(create());\n  copy = Low.copy;\n  \/\/transpose\n  inverse(mat) : mat4 = Low.inverse(mat, create());\n  toInverseMat3(mat) : mat3 = Low.toInverseMat3(mat, mat3.create());\n  multiply(mat, mat2) : mat4 = Low.multiply(mat, mat2, create());\n  multiplyVec3(mat, vec) : vec3.private = Low.multiplyVec3(mat, vec, vec3.from_public((0.,0.,0.)));\n  multiplyVec4(mat, vec) : vec4.private = Low.multiplyVec4(mat, vec, vec4.from_public((0.,0.,0.,0.)));\n  translate(mat, vec) : mat4 = Low.translate(mat, vec, create());\n  scale(mat, vec) : mat4 = Low.scale(mat, vec, create());\n  rotateX(mat, angle) : mat4 = Low.rotateX(mat, angle, create());\n  rotateY(mat, angle) : mat4 = Low.rotateY(mat, angle, create());\n  rotateZ(mat, angle) : mat4 = Low.rotateZ(mat, angle, create());\n  frustum(left, right, bottom, top, near, far) : mat4 = Low.frustum(left, right, bottom, top, near, far, create());\n  perspective(fovy, aspect, near, far) : mat4 = Low.perspective(fovy, aspect, near, far, create());\n  ortho(left, right, bottom, top, near, far) : mat4 = Low.ortho(left, right, bottom, top, near, far, create());\n  lookAt(eye, center, up) : mat4 = Low.lookAt(eye, center, up, create());\n\n}}\n","old_contents":"\ntype vec3.private = external;\ntype vec3 = (float, float, float);\ntype vec4.private = external;\ntype vec4 = (float, float, float, float);\n\ntype mat3 = external;\ntype mat4 = external;\n\nvec3 = {{\n     from_public : vec3 -> vec3.private = %% glMatrixPlugin.vec3_private_from_public %% ;\n     to_public : vec3.private -> vec3 = %% glMatrixPlugin.vec3_private_to_public %% ;\n     str : vec3.private -> string = %% glMatrixPlugin.vec3_str %% ;\n     apply: vec3, ({f1}\/{f2}\/{f3}), (float -> float) -> vec3 = (src, where, f ->\n       match where : ({f1}\/{f2}\/{f3}) with\n       | {f1} -> { src with f1=f(src.f1) }\n       | {f2} -> { src with f2=f(src.f2) }\n       | {f3} -> { src with f3=f(src.f3) }\n       end);\n     get(src, switch) = match switch : ({f1}\/{f2}\/{f3}) with\n       | {f1} -> src.f1\n       | {f2} -> src.f2\n       | {f3} -> src.f3\n       end;\n}}\n\nvec4 = {{\n     from_public : vec4 -> vec4.private = %% glMatrixPlugin.vec4_private_from_public %% ;\n     to_public : vec4.private -> vec4 = %% glMatrixPlugin.vec4_private_to_public %% ;\n     str : vec4.private -> string = %% glMatrixPlugin.vec4_str %% ;\n}}\n\nmat3 = {{\n  Low = {{\n    transpose : mat3, mat3 -> mat3 = %% glMatrixPlugin.mat3_transpose %% ;\n  }}\n     str : mat3 -> string = %% glMatrixPlugin.mat3_str %%\n     create : -> mat3 = %% glMatrixPlugin.mat3_create %% ;\n     to_list : mat3 -> list(float) = %% glMatrixPlugin.mat3_to_list %% ;\n     transpose(mat) : mat3 = Low.transpose(mat, create());\n}}\n\nmat4 = {{\n  Low= {{\n     to_list : mat4 -> list(float) = %% glMatrixPlugin.mat4_to_list %% ;\n     str : mat4 -> string = %% glMatrixPlugin.mat4_str %%\n     create : -> mat4 = %% glMatrixPlugin.mat4_create %% ;\n     perspective : float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_perspective %% ;\n     identity : mat4 -> mat4 = %% glMatrixPlugin.mat4_identity %% ;\n     translate : mat4, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_translate %% ;\n     lookAt : vec3.private, vec3.private, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_lookAt %% ;\n     multiply : mat4, mat4, mat4 -> mat4 = %% glMatrixPlugin.mat4_multiply %% ;\n     toInverseMat3 : mat4, mat3 -> mat3 = %% glMatrixPlugin.mat4_toInverseMat3 %% ;\n     \n     inverse : mat4, mat4 -> mat4 = %% glMatrixPlugin.mat4_inverse %% ;\n     multiplyVec3 : mat4, vec3.private, vec3.private -> vec3.private = %% glMatrixPlugin.mat4_multiplyVec3 %% ;\n     copy : mat4 -> mat4 = %% glMatrixPlugin.mat4_copy %% ;\n     multiplyVec4 : mat4, vec4.private, vec4.private -> vec4.private = %% glMatrixPlugin.mat4_multiplyVec4 %% ;\n     frustum : float, float, float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_frustum %% ;\n     ortho : float, float, float, float, float, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_ortho %% ;\n\n     rotateX : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateX %% ;\n     rotateY : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateY %% ;\n     rotateZ : mat4, float, mat4 -> mat4 = %% glMatrixPlugin.mat4_rotateZ %% ;\n\n     scale : mat4, vec3.private, mat4 -> mat4 = %% glMatrixPlugin.mat4_scale %% ;\n  }}\n\n  to_list = Low.to_list;\n  str = Low.str\n  create : -> mat4 = Low.create;\n  identity() : mat4 = Low.identity(create());\n  copy = Low.copy;\n  \/\/transpose\n  inverse(mat) : mat4 = Low.inverse(mat, create());\n  toInverseMat3(mat) : mat3 = Low.toInverseMat3(mat, mat3.create());\n  multiply(mat, mat2) : mat4 = Low.multiply(mat, mat2, create());\n  multiplyVec3(mat, vec) : vec3.private = Low.multiplyVec3(mat, vec, vec3.from_public((0.,0.,0.)));\n  multiplyVec4(mat, vec) : vec4.private = Low.multiplyVec4(mat, vec, vec4.from_public((0.,0.,0.,0.)));\n  translate(mat, vec) : mat4 = Low.translate(mat, vec, create());\n  scale(mat, vec) : mat4 = Low.scale(mat, vec, create());\n  rotateX(mat, angle) : mat4 = Low.rotateX(mat, angle, create());\n  rotateY(mat, angle) : mat4 = Low.rotateY(mat, angle, create());\n  rotateZ(mat, angle) : mat4 = Low.rotateZ(mat, angle, create());\n  frustum(left, right, bottom, top, near, far) : mat4 = Low.frustum(left, right, bottom, top, near, far, create());\n  perspective(fovy, aspect, near, far) : mat4 = Low.perspective(fovy, aspect, near, far, create());\n  ortho(left, right, bottom, top, near, far) : mat4 = Low.ortho(left, right, bottom, top, near, far, create());\n  lookAt(eye, center, up) : mat4 = Low.lookAt(eye, center, up, create());\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2d269eea485f10f6042fca09acd0730c174746b3","subject":"improved security, user is kept server side","message":"improved security, user is kept server side\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = function(text) {\n    message = {source:{~user}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"201d86e7c798a1f54d18ec77f096ccd43817a5c0","subject":"pretty","message":"pretty\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_start_static_page() =\n  width = 500;\n  height = 500;\n  fail_msg = \n    <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n  <div>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> if Outcome.is_failure(Modeler.init(#{id_canvas_area}, width, height)) then ignore(Dom.put_replace(#{id_canvas_area}, Dom.of_xhtml(fail_msg)))}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | \"\/scene\/\" scene_url=(.*) ->\n    html(\"3D creation\", server_start_static_page())\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\n_ = Random.random_init();\n\n\/*\nref = Mutable.make(4)\nrec val timer42 = Scheduler.make_timer(1000, (->\n  do jlog(\"a\")\n  if ref.get() == 0 then timer42.stop()\n))\ndo timer42.start()\n*\/\n\nserver_start_static_page() =\n  width = 500;\n  height = 500;\n  fail_msg = \n    <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n  <div>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> if Outcome.is_failure(Modeler.init(#{id_canvas_area}, width, height)) then (_ = Dom.put_replace(#{id_canvas_area}, Dom.of_xhtml(fail_msg)); void)}\/>\n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | \"\/scene\/\" scene_url=(.*) ->\n    html(\"3D creation\", server_start_static_page())\n  | (.*) ->\n    html(\"Welcome\", server_welcome_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"5731d0c64989b4353bb37613218c110e821748e0","subject":"removed the maximum size text, ugly","message":"removed the maximum size text, ugly\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/share.opa","new_file":"src\/share.opa","new_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase intmap(OpaShare.file) \/files\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode2(data)\n    os_file = {\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    key = Db3.fresh_key(@\/files)\n    \/files[key] <- os_file\n    callback(name, mimetype, key)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/files[key]\n  }\n\n}\n","old_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share ! [< {MAX_SIZE}MB]\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase intmap(OpaShare.file) \/files\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode2(data)\n    os_file = {\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    key = Db3.fresh_key(@\/files)\n    \/files[key] <- os_file\n    callback(name, mimetype, key)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/files[key]\n  }\n\n}\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"87fa58c9bedf2e8a2dfe3de4e039404a996ccf64","subject":"some code to guess to clicked view","message":"some code to guess to clicked view\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\nwhich_boxes(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      who = which_boxes(viewbox, pos);\n      do Log.debug(\"Picking\", \"in box: '{who}'\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      possible_target =\n        (r, g, b) = pickedColor;\n        f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n        Option.map((u -> u.f2.id), List.find(f, eng.scene));\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3; ~possible_target })\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"02b0568a4ea245726211a560814bdc8838ebc4bc","subject":"[bug disappearance] selection work now in 3D view, so we shut off the mouseup in it","message":"[bug disappearance] selection work now in 3D view, so we shut off the mouseup in it\n\nthe moving of matrix into the modeler fixed it ?\nbecause i removed a matrix multiplication ?\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ncompute_an_eye_into_ortho(mat, cs, clear_near_far) =\n  do mat4.translate(mat, vec3.from_public(cs.target), mat);\n  tmp = \n    h = cs.eye.f3;\n    clear_near_far((h, h, h));\n  _ = mat4.scale(mat, vec3.from_public(tmp), mat);\n  mat ;\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, fetch_box(views, who), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = mat4.copy(fetch_box(get_camera_setting(), who)) ;\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some((this_viewbox, who)));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v((this_viewbox, this_who)) =\n            match this_who with\n            | {out} | {_3D} -> void\n            | _ -> \n              if this_viewbox.inbox(bad_pos) then\n                cont(this_viewbox.clear_near_far(last_coord_fixer(bad_pos)))\n              else\n                Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\")\n            end;\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ncompute_an_eye_into_ortho(mat, cs, clear_near_far) =\n  do mat4.translate(mat, vec3.from_public(cs.target), mat);\n  tmp = \n    h = cs.eye.f3;\n    clear_near_far((h, h, h));\n  _ = mat4.scale(mat, vec3.from_public(tmp), mat);\n  mat ;\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, fetch_box(views, who), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = mat4.copy(fetch_box(get_camera_setting(), who)) ;\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some(this_viewbox));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v(this_viewbox) =\n            if this_viewbox.inbox(bad_pos) then\n              cont(this_viewbox.clear_near_far(last_coord_fixer(bad_pos)))\n            else\n              Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\");\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"240a6becef7a861524da87c63c32e9e812f77028","subject":"making the selection view a little more reactive","message":"making the selection view a little more reactive\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(->true); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(->true); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) else setup_menu(parent_sel, channel, get_subjects().mode);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"79c4ab612a1de73661af52aea1266a7a0c97ad71","subject":"[fix] updated github buttons (iframe issue)","message":"[fix] updated github buttons (iframe issue)\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/ghbtns.com\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase opa_chat {\n  message \/history[{date}]\n}\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now_gmt()\n\n\/** Connection **\/\n\nfunction server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nfunction compute_stats() {\n  uptime = Date.between(launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nfunction file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nfunction observe_client(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nfunction init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(observe_client, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  iterator = DbSet.iterator(\/opa_chat\/history[limit NB_LAST_MSGS; order -date])\n  history = Iter.to_list(iterator) |> List.rev(_)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\n@async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(Limits.max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/opa_chat\/history[date==message.date] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\n@async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nfunction start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : {css:[\"\/resources\/css\/style.css\"]} }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"47b9923621ba0e60d531b5f93d23deaaa32955c3","subject":"coding the grid builder","message":"coding the grid builder\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n\n  grid(gl, right : int, left : int, by : int, len : float, maper, color) =\n    right = (right \/ by : int) * by;\n    left = (left \/ by : int) * by;\n    state =\n      f(state : 'state) : 'state =\n        tmp = (float_of_int(state.i), len, float_of_int(state.i), -len)\n        { l=List.cons(tmp, state.l); i=state.i + by };\n      g(state) : bool = state.i <= left;\n      for({i=right; l=List.empty}, f, g);\n    l_a = List.flatten(List.map(((a, b, c, d) -> List.append(maper(a, b), maper(c, d)) ), state.l));\n    l_b = List.flatten(List.map(((a, b, c, d) -> List.append(maper(b, a), maper(d, c)) ), state.l));\n    create(gl, List.append(l_a, l_b) : list(float), color);\n\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"13c63185f304be03519ef6f26b1c0985cb8b8038","subject":"added sum type for system messages vs. user messages","message":"added sum type for system messages vs. user messages\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\ntype author = { system } \/ { author : string }\ntype message = { author : author\n               ; text : string\n               ; date : Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast({~author}, Dom.get_value(#entry))\n   logout() =\n     do broadcast({system}, \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast({system}, \"{author} is connected to the room\")\n   <div id=#main>\n     <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n     <input id=#author onnewline={go}\/>\n     <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author : string\n               ; text : string\n               ; date : Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n     <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n     <input id=#author onnewline={go}\/>\n     <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"b7ae602049d974c3c714e096db9176dbba0ea7f3","subject":"renaming field and type","message":"renaming field and type\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  use_tool(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_tool} ->\n      modeler = Modeler.change_tool(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"805b672928de9225e9723f3b2521f9aac9fffa3a","subject":"* opa\/pfff_logger.opa: #unique users","message":"* opa\/pfff_logger.opa: #unique users\n","repos":"juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * It's a good OPA exercice: need a state (db), some simple\n * visualization (web ui), and it needs to be accessible from anywhere\n * (web service). No need to install any special things on the machine \n * of the user (does it handle scribe, how to aggregate scribe of\n * all machines, etc).\n *\n * history:\n *  - opti: need to use \/db[cmd][date] cos reinsert full list is too slow\n *  \n *\n * alternatives:\n *  - log in a file on a shared NFS dir and then elsewhere do the aggregation\n *  - use RPC (thrift), which would be more typed than abusing urls and json\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *  - use ocamlnet\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - how to allow concurrent access to the db? need run multiple opa?\n *    use opa-cloud with its load balancer? but is db itself concurrent?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(intmap(command_run)) \/db1\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction users_of_cmd(string cmd) {\n  intmap = \/db1[cmd];\n  vals = Map.To.val_list(intmap);\n  users = List.map(function (x) { x.unixname }, vals);\n  set = Set.From.list(users);\n  set\n}\n\nfunction view_all_cmds() {\n  strmap = \/db1;\n  keys = Map.To.key_list(strmap);\n  keys_with_stats = List.map(function (cmd) {\n    users = users_of_cmd(cmd);\n    (cmd, Set.size(users))\n    }, keys);\n  String.concat(\"\\n\", \n    List.map(function ((cmd, n)) {\"{cmd}({n})\"}, keys_with_stats))\n}\n\nfunction view_cmd(string cmd) {\n  intmap = \/db1[cmd];\n  vals = Map.To.val_list(intmap);\n  ys = List.map(string_of_command_run, vals);\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        now = Date.now();\n        entry = { unixname: s1, extra_args: s2, date: now }\n        \/counter <- \/counter + 1;\n        \/\/old: slow  \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        \/db1[cmd][Date.in_milliseconds(now)] <- entry;\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_all_cmds())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view_cmd(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * It's a good OPA exercice: need a state (db), some simple\n * visualization (web ui), and it needs to be accessible from anywhere\n * (web service). No need to install any special things on the machine \n * of the user (does it handle scribe, how to aggregate scribe of\n * all machines, etc).\n *\n * history:\n *  - opti: need to use \/db[cmd][date] cos reinsert full list is too slow\n *  \n *\n * alternatives:\n *  - log in a file on a shared NFS dir and then elsewhere do the aggregation\n *  - use RPC (thrift), which would be more typed than abusing urls and json\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *  - use ocamlnet\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - how to allow concurrent access to the db? need run multiple opa?\n *    use opa-cloud with its load balancer? but is db itself concurrent?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(intmap(command_run)) \/db1\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  intmap = \/db1[cmd];\n  vals = Map.To.val_list(intmap);\n  ys = List.map(string_of_command_run, vals);\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        now = Date.now();\n        entry = { unixname: s1, extra_args: s2, date: now }\n        \/counter <- \/counter + 1;\n        \/\/old: slow  \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        \/db1[cmd][Date.in_milliseconds(now)] <- entry;\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"e278dcae87bf20f0439d2a181a62feec68c3f94d","subject":"moving the viewbox","message":"moving the viewbox\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  last_viewbox = Mutable.make(Option.none);\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(views, who);\n          mvMatrix = mat4.copy(some_settings.m) ;\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, (0.0, 1.0, 0.0), scene, {pick});\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=vec3.apply(pos_result, some_settings.clear_near_far, (_-> 0.0)); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some((this_viewbox, some_settings.clear_near_far, who)));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v((this_viewbox, this_clear_near_far, this_who)) =\n            match this_who with\n            | {out} | {_3D} -> void\n            | _ -> \n              if this_viewbox.inbox(bad_pos) then\n                cont(vec3.apply(last_coord_fixer(bad_pos), this_clear_near_far, (_-> 0.0)), this_clear_near_far)\n              else\n                Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\")\n            end;\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x, switch) = mouse_listener({mouseup; pos=x; ~switch});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n      do support_gpu_picking.set(Option.some(gpu_picker_register));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(views, who);\n          mvMatrix = mat4.copy(some_settings.m) ;\n          _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, (0.0, 1.0, 0.0), scene, {pick});\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=vec3.apply(pos_result, some_settings.clear_near_far, (_-> 0.0)); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some((this_viewbox, some_settings.clear_near_far, who)));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v((this_viewbox, this_clear_near_far, this_who)) =\n            match this_who with\n            | {out} | {_3D} -> void\n            | _ -> \n              if this_viewbox.inbox(bad_pos) then\n                cont(vec3.apply(last_coord_fixer(bad_pos), this_clear_near_far, (_-> 0.0)), this_clear_near_far)\n              else\n                Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\")\n            end;\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x, switch) = mouse_listener({mouseup; pos=x; ~switch});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      gpu_picker_register = drawScene_and_register(eng, get_scene, get_camera_setting, mode.get, get_pending_mouseup_and_clean);\n      do support_gpu_picking.set(Option.some(gpu_picker_register));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"15e6ddf59fadbf4be414c589c28988f358e1c483","subject":"moving some vars","message":"moving some vars\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos) =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.none })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(x, y) =\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          v2 = g(x, y);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target; coord_fixer=Option.none })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f198dbdd50d9bf5f2c412ad7ffa1290da8deb5b1","subject":"fixed a warning wrt Opa v0.9.2","message":"fixed a warning wrt Opa v0.9.2\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler =\n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler =\n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do\n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message =\n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string }\n\/ { with_address_list : list(string) -> void }\n;\n\ntype Central.Modelers.sync.message =\n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n  get_address_list(state) =\n    StringMap.To.key_list(state.files)\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; client_id=_ } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state =\n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    | { ~with_address_list } ->\n      l = List.sort_by((_ -> Random.int(Limits.max_int)), `Central.Modelers`.get_address_list(state));\n      _ = with_address_list(l)\n      { unchanged }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    do \n      f(c) = Session.send(c, { write_patch; ~patch});\n      List.iter(f, modsha.clients);\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string }\n\/ { with_address_list : list(string) -> void }\n;\n\ntype Central.Modelers.sync.message = \n  { load: Scene.scene }\n\/ { write_patch; patch: Scene.patch };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n  get_address_list(state) =\n    StringMap.To.key_list(state.files)\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; client_id=_ } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    | { ~with_address_list } ->\n      l = List.sort_by((_ -> Random.int(max_int)), `Central.Modelers`.get_address_list(state));\n      _ = with_address_list(l)\n      { unchanged }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9df2de77b5f374914fac7f1bded98224322c2d18","subject":"added date to messages","message":"added date to messages\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * A simple, one-room, scalable real-time web chat.\n *\n * @author David Rajchenbach-Teller, David@opalang.org\n *\/\n\nimport stdlib.date\n\n\/**\n * {1 Network infrastructure}\n *\/\n\n\/**\n * The type of messages sent by a client to the chatroom\n *\/\ntype message = {author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\n\/**\n * The chatroom.\n *\/\nroom = Network.cloud(\"room\"): Network.network(message)\n\n\/**\n * {1 User interface}\n *\/\n\n\/**\n * Update the user interface in reaction to reception of a message.\n *\n * This function is meant to be registered with [room] as a callback.\n * Its sole role is to display the new message in [#conversation].\n *\n * @param x The message received from the chatroom\n *\/\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}:<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\n\/**\n * Broadcast text to the [room].\n *\n * Read the contents of [#entry], clear these contents and send the message to [room].\n *\n * @param author The name of the author. Will be included in the message broadcasted.\n *\/\nbroadcast(author) =\n   do Network.broadcast({~author text=Dom.get_value(#entry) date=Date.now()}, room)\n   Dom.clear_value(#entry)\n\n\/**\n * Build the user interface for a client.\n *\n * Pick a random author name which will be used throughout the chat.\n *\n * @return The user interface, ready to be sent by the server to the client on connection.\n *\/\nstart() =\n   author = Random.string(8)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> Network.add_callback(user_update, room)}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send!<\/div>\n\n\/**\n * {1 Application}\n *\/\n\n\/**\n * Main entry point.\n *\n * Construct an application called \"Chat\" (users will see the name in the title bar),\n * embedding statically the contents of directory \"resources\", using the global stylesheet\n * \"resources\/css.css\" and the user interface defined in [start].\n *\/\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * A simple, one-room, scalable real-time web chat.\n *\n * @author David Rajchenbach-Teller, David@opalang.org\n *\/\n\n\/**\n * {1 Network infrastructure}\n *\/\n\n\/**\n * The type of messages sent by a client to the chatroom\n *\/\ntype message = {author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/}\n\n\/**\n * The chatroom.\n *\/\nroom = Network.cloud(\"room\"): Network.network(message)\n\n\/**\n * {1 User interface}\n *\/\n\n\/**\n * Update the user interface in reaction to reception of a message.\n *\n * This function is meant to be registered with [room] as a callback.\n * Its sole role is to display the new message in [#conversation].\n *\n * @param x The message received from the chatroom\n *\/\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <div class=\"user\">{x.author}:<\/div>\n            <div class=\"message\">{x.text}<\/div>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\n\/**\n * Broadcast text to the [room].\n *\n * Read the contents of [#entry], clear these contents and send the message to [room].\n *\n * @param author The name of the author. Will be included in the message broadcasted.\n *\/\nbroadcast(author) =\n   do Network.broadcast({~author text=Dom.get_value(#entry)}, room)\n   Dom.clear_value(#entry)\n\n\/**\n * Build the user interface for a client.\n *\n * Pick a random author name which will be used throughout the chat.\n *\n * @return The user interface, ready to be sent by the server to the client on connection.\n *\/\nstart() =\n   author = Random.string(8)\n   <div id=#header><div id=#logo><\/div><\/div>\n   <div id=#conversation onready={_ -> Network.add_callback(user_update, room)}><\/div>\n   <input id=#entry  onnewline={_ -> broadcast(author)}\/>\n   <div class=\"button\" onclick={_ -> broadcast(author)}>Send!<\/div>\n\n\/**\n * {1 Application}\n *\/\n\n\/**\n * Main entry point.\n *\n * Construct an application called \"Chat\" (users will see the name in the title bar),\n * embedding statically the contents of directory \"resources\", using the global stylesheet\n * \"resources\/css.css\" and the user interface defined in [start].\n *\/\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9216ba093411fcd271310272b573d6deb86958eb","subject":"ordering code about color","message":"ordering code about color\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(x, y) =\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          v2 = g(x, y);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target; coord_fixer=Option.none })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(x, y) =\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          v2 = g(x, y);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target; coord_fixer=Option.none })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"4af33a74307f74dd059b3afabf7ac270ab4a65d5","subject":"adding a state","message":"adding a state\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        on_message_mouse_listener(state_mouse, msg, my_channel) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target; last_coord_fixer=Option.none});\n                Session.send(my_channel, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty } }\n          | { mouseup; event=_; ~gl_pos; ~switch } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing } -> do f(); { unchanged }\n            | { running_down=l } ->\n              { set={ running_down=List.cons(f, l) } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing } -> do Log.debug(\"\", \"\"); { unchanged }\n            | { running_down=l } -> do List.iter((f -> f()), l); { set={ nothing } }\n            end\n          end;\n        channel_mouse_listener = Session.make_own({nothing}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      on_message_mouse_listener(msg) =\n        match msg with\n        | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n          f(gpu_picker_regsiter) =\n            do lock_mouse_event.set(true);\n            gpu_picker_regsiter((abs_full_pos, (possible_target -> do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target; last_coord_fixer=Option.none}); lock_mouse_event.set(false)))) ; \n          do Option.switch(f, void, support_gpu_picking.get());\n          { continue }\n        | { mouseup; event=_; ~gl_pos; ~switch } ->\n          msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n          do Session.send(channel, msg);\n          { continue }\n        end ;\n      mouse_listener =\n        channel_mouse_listener = Session.make_stateless(on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"19aa2809f6a31828e46aede802b21b98829b567d","subject":"code factorisation","message":"code factorisation\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n\n  apply_command(scene, command : Scene.Client.command) : Scene.Client.scene = \n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, command));\n    \n  others_add_cube(scene, where) : Scene.Client.scene = apply_command(scene, {add_cube; ~where});\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = apply_command(scene, {selection_change_color; ~new_color});\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(patch_id) };\ntype Scene.command = { add_cube; where: {x: float; y: float; z:float } } \/ { change_color; id: hidden_id; new_color: ColorFloat.color };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n} ;\n\nScene = {{\n  empty(client_id) : Scene.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { objs=[ c((0.0, 0.0, -3.0)), c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ]; CPF=build_CPF(client_id) };\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~where} -> add_object(scene, {cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()})\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n  selection_change(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\n`Scene.Client` = {{\n\n  load(scene : Scene.scene) : Scene.Client.scene =\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty() : Scene.Client.scene = load(Scene.empty(Random.int(99)));\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = match cmd with\n    | { add_cube; ... } as command -> Option.some({ pid=scene.others.CPF(); ~command })\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    end;\n\n  others_add_cube(scene, where) : Scene.Client.scene =\n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, {add_cube; ~where}));\n\n  selection_change_color(scene, new_color) : Scene.Client.scene = \n    Option.switch((p -> { scene with others=Scene.apply_patch(scene.others, p) }), scene, command_to_scene_patch(scene, {selection_change_color; ~new_color}));\n    \n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=`Scene.Client`.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=`Scene.Client`.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=`Scene.Client`.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ce21ae8bee14e7f53950141ffff7106c5ff52522","subject":"removing the mutable bank","message":"removing the mutable bank\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl, p.id))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n@client (pc, register_color) =\n  bank = Mutable.make_client(IntMap.empty : intmap((float, float, float)));\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r()) ;\n  \/\/List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n  (i -> IntMap.get(i, bank.get()), (i -> bank.set(IntMap.add(i, IntMap.get(i, bank.get()) ? c(), bank.get())))) \n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = pc(i) ? (0.1, 0.2, 0.3);\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, do register_color(p.id); Cube.create(gl, p.id))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"3444090de3e96d687f852485c7822804bca63b5a","subject":"replace user list with user intmap + format","message":"replace user list with user intmap + format\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"494ca0c80cba36217cad526b8a8e1ab51934c6a9","subject":"renamed app MindChat in the app itself","message":"renamed app MindChat in the app itself\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">MindChat<\/h2>\n    <div class=\"buttons pull-left\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>The webchat that shows how you feel.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"MindChat\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-left\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"38f45006fb18938e61692b1f4b41f6e9b8177064","subject":"pull-left lost in merge","message":"pull-left lost in merge\n","repos":"MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-left\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"MLstate\"\nGITHUB_REPO = \"MindChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name, option(mindstate) mindwave }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {user mindstate}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(launch_date, Date.now())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul class=\"unstyled\">{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\"> is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        mw = mindwave_to_html(user.mindwave)\n        <li><span id=\"{user.id}-state\" class=\"mindwave\">{mw}<\/span> {user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {mindstate:user} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    users = ServerReference.get(users) |> IntMap.To.val_list(_)\n    waves_list =\n      List.fold(function(user, acc) {\n        (user.id, user.mindwave) +> acc\n      }, users, [])\n    update_mindwaves(waves_list)\n  default : void\n  }\n}\n\n\/** Init **\/\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name,\n    mindwave: none,\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h3>Users online<\/h3>\n      <div id=#user_list\/>\n      {mindwave_flash}\n    <\/div>\n    <div id=#content\n         onready={function(e){\n                    init_scheduling(user, e)\n                    init_client(user, client_channel, e)\n                  }}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h3>A real-time web chat built in Opa.<\/h3>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case (.*): start()\n}\n\nResource.register_external_js(\"\/resources\/neurosky\/FlashToJs\/api.js\")\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/style.css\",\n      \"\/resources\/neurosky\/icons.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"45bfaf567e8a3c897511e037648de52e1bce706e","subject":"Enhance server disconnection user message","message":"Enhance server disconnection user message\n\nWhen the web application can't join the server, an error message is displayed to\nthe user. This patch uses the Notifications.error helper to display it\n","repos":"MLstate\/PEPS-source","old_file":"src\/view\/content.opa","new_file":"src\/view\/content.opa","new_contents":"\/*\n * PEPS is a modern collaboration server\n * Copyright (C) 2015 MLstate\n *\n * This program is free software: you can redistribute it and\/or modify\n * it under the terms of the GNU Affero General Public License as published\n * by the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n *\/\n\n\npackage com.mlstate.webmail.view\n\n\/\/ Global alias used in all views\nWB = WBootstrap\n\nmodule Keyboard {\n\n  client function Dom.event_propagation propagation_handler(Dom.event e) {\n    propagation = {stop_propagation : false, prevent_default : false};\n    if (not(Dom.is_empty(Dom.select_raw_unsafe(\"input:focus, textarea:focus\"))))\n      propagation\n    else\n      match (e) {\n      case { key_code : { some : 47 }, ... }:\n        {propagation with prevent_default : true}\n      case { key_code : { some : 114 }, key_modifiers : [], ... }:\n        {propagation with prevent_default : true}\n      default: propagation\n      }\n  }\n\n  client function handler(Dom.event e) {\n    if (not(Dom.is_empty(Dom.select_raw_unsafe(\"input:focus, textarea:focus\"))))\n      void\n    else {\n      match (e) {\n      case { key_code : { some : 99 }, key_modifiers : [], ... }:\n        ComposeView.new(\"\", e)\n      case { key_code : { some : 117 }, key_modifiers : [], ... }:\n        UploadView.show(e)\n      case { key_code : { some : 109 }, key_modifiers : [], ... }:\n        MessageView.mark_read(e)\n      \/\/ case { key_code : { some : 105 }, key_modifiers : [], ... }:\n      \/\/   Dom.trigger(#info_toggle, {click})\n      case { key_code : { some : 47 }, ... }: SearchView.focus(e)\n      \/\/ case { key_code : { some : 114 }, key_modifiers : [], ... }:\n      \/\/   Dom.trigger(#quick_reply, {click})\n      case { key_code : { some : 115 }, key_modifiers : [], ... }:\n        Dom.trigger(#star_message, {click})\n      case { key_code : { some : 106 }, key_modifiers : [], ... }:\n        MessageView.Snippet.next(e)\n      case { key_code : { some : 107 }, key_modifiers : [], ... }:\n        MessageView.Snippet.prev(e)\n      default: void\n      }\n    }\n  }\n\n}\n\nclient logout_timer_time = ClientReference.create(60)\nclient logout_timer_ctxt = ClientReference.create(option(ThreadContext.client) {none})\n\nmodule Content {\n\n    log = Log.notice(\"Content\", _)\n    error = Log.error(\"Content\", _)\n\n    \/\/ \/\/ FIXME: move to automated JS\n    \/\/ function choose_selected_box(anchor) {\n    \/\/     function act(anchor) {\n    \/\/         Dom.remove_class(Dom.select_raw_unsafe(\"li\"), \"selected\");\n    \/\/         Dom.add_class(Dom.select_class(anchor), \"selected\");\n    \/\/         void\n    \/\/     }\n    \/\/     update({messages: {inbox}}, anchor)\n    \/\/ }\n\n    \/\/ client function update_items(anchor) {\n    \/\/     Content.choose_selected_box(anchor);\n    \/\/     void\n    \/\/ }\n\n    function insert_loading() {\n        Log.info(\"Loading\", \"content...\");\n        if (Dom.is_empty(#loading-content)) {\n          loading =\n            <div id=\"loading-content\" class=\"loading-content\" >\n              <img src=\"\/resources\/img\/loader.gif\" alt=\"{@intl(\"Loading...\")}\"\/>\n            <\/div>;\n          #content = loading\n        } else void\n    }\n\n    function make_alert(string title, xhtml description) {\n      WBootstrap.Alert.make({\n        block: ~{ title, description },\n        actions: none,\n        closable: false\n      }, {error})\n    }\n\n    login_please =\n      make_alert(\n        @intl(\"Your session has expired!\"),\n        <>{@intl(\"Please log in to access this resource\")}<\/>\n      )\n\n    non_existent_resource =\n      make_alert(\n        @intl(\"Oops!\"),\n        <>{@intl(\"Looks like the resource you are looking for does not exist ...\")}<\/>\n      )\n\n    not_allowed_message =\n      make_alert(\n        @intl(\"Sorry!\"),\n        XmlConvert.of_alpha(AppText.not_allowed_message())\n      )\n\n    not_allowed_resource =\n      make_alert(\n        \"Sorry!\",\n        XmlConvert.of_alpha(AppText.not_allowed_resource())\n      )\n\n    exposed function logout_and_reload(ctx) {\n      state = Login.get_state()\n      log(\"logout_and_reload: unlogging {state}\")\n      key = state.key\n      error(\"INACTIVE LOGOUT {key}\")\n      Login.logout()\n      ClientEvent.remove_inactivity_delay(ctx)\n      Client.do_reload(false)\n    }\n\n    client function do_confirm(ctx, btn_id, confirmed, _) {\n      Button.reset(#{btn_id})\n      Modal.hide(#modal_logout_confirm)\n      stop_logout_timer()\n      if (confirmed) {\n        logout_and_reload(ctx)\n      }\n    }\n\n    recursive private client function logout_timer_function() {\n      time = ClientReference.get(logout_timer_time)\n      if (time > 0) {\n        time = time - 1\n        ClientReference.set(logout_timer_time, time)\n        #logout_confirm_time = AppText.logout_timer(time)\n      } else {\n        logout_timer.stop()\n        match (ClientReference.get(logout_timer_ctxt)) {\n        case {some:ctx}: logout_and_reload({some:ctx});\n        case {none}: void;\n        }\n      }\n    }\n\n    recursive private client logout_timer = Scheduler.make_timer(1000, logout_timer_function)\n\n    client function start_logout_timer(ctx) {\n      ClientReference.set(logout_timer_time, AdminController.get_grace_period())\n      ClientReference.set(logout_timer_ctxt, ctx)\n      logout_timer.start()\n    }\n\n    client function stop_logout_timer() {\n      ClientReference.set(logout_timer_ctxt, {none})\n      logout_timer.stop()\n    }\n\n    function logout_confirm(ctx) {\n      Modal.make(\n       \"modal_logout_confirm\",\n       <>{AppText.session_expired()}<\/>,\n       <><div>{AppText.logout_confirm()}<\/div>\n         <div id=\"logout_confirm_time\">{AppText.logout_timer(AdminController.get_grace_period())}<\/div>\n       <\/>,\n       (WBootstrap.Button.make({button:<><i class=\"fa fa-check\"><\/i> {AppText.yes()}<\/>,\n                        callback:do_confirm(ctx, \"confirm_yes\", true, _)}, [{success}])\n        |> Xhtml.add_id(some(\"confirm_yes\"), _)) <+>\n       (WBootstrap.Button.make({button:<><i class=\"fa fa-times\"><\/i> {AppText.no()}<\/>,\n                        callback:do_confirm(ctx, \"confirm_no\", false, _)}, [{primary}])\n        |> Xhtml.add_id(some(\"confirm_no\"), _)),\n       {Modal.default_options with backdrop : false, static : false, keyboard : false})\n    }\n\n    \/\/ FIXME: not here\n    exposed function init_server(channel) {\n      state = Login.get_state()\n      key = state.key\n      if (not(Login.is_logged(state))) void\n      else {\n        ctx = ThreadContext.Client.get_opt({current})\n        timeout = Duration.min(AdminController.get_timeout())\n        _ = ClientEvent.set_inactivity_delay(ctx, timeout)\n        clek =\n            ClientEvent.set_on_inactive_client(function(ctx) {\n              start_logout_timer({some:ctx})\n              Modal.show(#modal_logout_confirm)\n            })\n        Dom.bind_beforeunload_confirmation(function(_) {\n          Notification.unregister(key, channel)\n          ClientEvent.remove_event(clek)\n          ClientEvent.remove_inactivity_delay(ctx)\n          none\n        })\n        Intl.setLocale(User.getLocale(key))\n        Notification.register(key, channel)\n        \/\/ Update profile picture.\n        match (Option.bind(RawFile.get_thumbnail, User.get_picture(state.key))) {\n          case {some: picture}:\n            #profile_picture = <img src={Utils.dataUrl(picture)} class=\"user-img\"\/>\n          default: void\n        }\n      }\n    }\n\n    xhtml drop_file =\n        <>\n         <img id=\"compose_file_loader\" src=\"\/resources\/img\/loader.gif\" style={\n         [Css_build.display({css_none})]}\/>\n         {@intl(\"Drop files here\")}\n        <\/>\n\n    \/\/ client function clear_modal_errors() {\n    \/\/   Dom.remove_class(Dom.select_raw_unsafe(\"#modal_compose .form-group\"), \"error\")\n    \/\/ }\n\n    client function clear_tooltips() {\n      Dom.remove(Dom.select_class(\"tooltip\"))\n    }\n\n\n    exposed function do_setup_admin(pass) {\n      \/\/ Build admin user.\n      if (Admin.undefined()) {\n        Admin.create(pass)\n        Login.login(\"admin\", pass)\n      }\n    }\n    client function setup_admin(_evt) {\n      pass = Dom.get_value(#pass) |> String.trim\n      passrepeat = Dom.get_value(#passrepeat) |> String.trim\n\n      if (pass != passrepeat || pass == \"\") Notifications.error(\"Error\", <>{@intl(\"Invalid password\")}<\/>)\n      else do_setup_admin(pass)\n    }\n\n    protected function signin(state) {\n      <>\n      <h3>{AppText.sign_in_to_mailbox()}<\/h3>\n      <div id=\"login\">\n        {Login.build(state)}\n      <\/div>\n      { if (not(Admin.only_admin_can_register())) {\n          <a onclick={function(_){ #signin_well = signup(state) }}>\n            {@intl(\"Don't have an account? Sign up\")}\n          <\/a>\n        }\n        else <><\/>\n      }\n      <\/>\n    }\n\n    protected function signup(state) {\n      AdminView.register(state, none) <+>\n      <a onclick={function(_){ #signin_well = signin(state) }}>\n        {@intl(\"Already have an account? Sign in\")}\n      <\/a>\n    }\n\n    \/** Log in window, if user is not connected. *\/\n    @expand protected function loginbox(state) {\n      <div class=\"home-card\">\n        <div class=\"container\">\n          <div class=\"app-icon\"><\/div>\n          <h1>{Admin.logo()}<\/h1>\n          <div class=\"well\">\n            <div id=\"signin_well\">\n              {signin(state)}\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    }\n\n\n    @expand protected function passwordbox(state) {\n      <div class=\"home-card\">\n        <div class=\"container\">\n          <div class=\"app-icon\"><\/div>\n          <h1>{Admin.logo()}<\/h1>\n          <div class=\"well\">\n            <h3>{@intl(\"Setup your PEPS in two steps\")}<\/h3>\n            <form role=\"form\" class=\"form-simple\">\n              <div class=\"form-group\">\n                <label class=\"control-label\" for=\"domain\">{@intl(\"Admin Password\")}<\/label>\n                <input id=\"pass\" type=\"password\" class=\"form-control\" placeholder=\"{@intl(\"Password\")}\"\/>\n              <\/div>\n              <div class=\"form-group\">\n                <label class=\"control-label\" for=\"domain\">{@intl(\"Repeat\")}<\/label>\n                <input id=\"passrepeat\" type=\"password\" class=\"form-control\" placeholder=\"{@intl(\"Password repeat\")}\"\/>\n              <\/div>\n              <div class=\"form-group\">\n                <button type=\"button\" class=\"btn btn-block btn-primary\" onclick={setup_admin}>{@intl(\"Next\")}<\/button>\n              <\/div>\n            <\/form>\n          <\/div>\n        <\/div>\n      <\/div>\n    }\n\n    \/**\n     * Function called when the main page is ready.\n     * URN is some if the user is logged in, else none.\n     *\/\n    client function init_client(option(URN.t) urn, _) {\n      errTitle = @intl(\"Connection lost\")\n      errBody = <div>{@intl(\"Please check your network connectivity and then refresh the page\")}<\/div>\n      PingClient.add_connection_lost_handler(function() {\n        Notifications.error(errTitle, errBody)\n      });\n      Dom.bind_with_options(\n        Dom.select_document(),\n        {keypress}, Keyboard.handler,\n        [ {propagation_handler : Keyboard.propagation_handler} ]\n      ) |> ignore\n      Collapse.init(Dom.select_class(\"collapse\"))\n      Dropdown.init(Dom.select_class(\"dropdown-toggle\"))\n\n      channel = Session.make_callback(Notifications.handler)\n      init_server(channel)\n      \/\/ TODO: preserve last mode and path?\n      log(\"init_client: {urn}\")\n      Option.iter(update(_, true), urn)\n    }\n\n    protected function build(Login.state state, URN.t urn) {\n      unprotected = Mode.unprotected(urn.mode) \/\/ Give access to unprotected share links.\n      logged = Login.is_logged(state)\n\n      (view, _, _, _) = SettingsController.get_user_preferences(state.key)\n      cl = if (view == {folders}) \" narrow\" else \"\"\n      init = if (logged || unprotected) init_client(some(urn), _) else init_client(none, _)\n      modals =\n        if (Mode.is_share(urn.mode))\n          <><\/>\n        else\n          logout_confirm(ThreadContext.Client.get_opt({current})) <+>\n          FolderView.build_form(state, none) <+>\n          SearchView.build_form(state)\n\n      <div id=\"main\" onready={init} class=\"main o-selectable{cl}\">\n        <div class=\"notification_area o-selectable\" id=\"notification_area\"\/>{\n        if (Admin.undefined() && not(unprotected))\n          passwordbox(state)\n        else if (not(logged || unprotected))\n          loginbox(state)\n        \/\/ Condition shown iff active licensing.\n        else\n          <div id=\"appsidebar\" class=\"app-sidebar\" style=\"width:320px; display:none;\"><\/div> <+>\n          <div id=\"content\" class=\"content\"><\/div> <+>\n          modals\n      }<\/div>\n\n    }\n\n  protected function selector(state, URN.t urn) {\n    match (urn.mode) {\n      case {messages: box}:   MessageView.build_box(state, box, urn.path, none)\n      case {files: mode}:     FileView.build(state, mode, urn.path)\n      case {people: mode}:    PeopleView.build(state, mode, urn.path)\n      case {admin: mode}:     AdminView.build(state, mode, urn.path)\n      \/\/ TODO for Norman\n      case ~{app, active: _}: AppView.build(state, app, urn.path)\n      case {share: link}:     FileView.build_shared(link, urn.path)\n      case {settings: mode}:  SettingsView.build(state, mode, urn.path)\n      case {dashboard: mode}: Dashboard.build(state, mode, urn.path)\n      case {error}:           non_existent_resource\n    }\n  }\n\n  \/\/ function to verify view requirements\n  \/\/ should be called by every view main function to ensure consistency\n  function ensure(req, state, resource) {\n    if ((req=={logged} || req=={admin} || req=={super}) && not(Login.is_logged(state))) { login_please }\n    else if ((req=={admin} || req=={super}) && not(Login.is_admin(state))) { not_allowed_resource }\n    else if (req=={super} && not(Login.is_super_admin(state))) { not_allowed_resource }\n    else { resource }\n  }\n\n  \/** check_admin state *\/\n  check_admin = ensure({admin}, _, _)\n  check_super = ensure({super}, _, _)\n\n  function onboarding(state) {\n    if (SettingsController.onboarding(state.key)) {\n      match (OnboardView.build(state)) {\n        case {some: html}:\n          Notifications.warning(\"Welcome to PEPS\", html)\n          Dom.add_class(#notification_area, \"notify-static\")\n        default:\n          Dom.remove_class(#notification_area, \"notify-static\")\n      }\n    } else {\n      Dom.remove_class(#notification_area, \"notify-static\")\n    }\n  }\n\n  \/**\n   * Update the client state.\n   * Grouping the updates like this help reducing the number of client calls, and optimes the\n   * slicing delay.\n   *\/\n  client function upload(urn, content, sidebar, badges) {\n    \/\/ Clear current notifications.\n    URN.change(urn)\n    TopbarView.activate(urn.mode)\n    Notifications.clear()\n    Content.clear_tooltips()\n    \/\/ Updates contents.\n    #content = content\n    #sidebar = sidebar\n    \/\/ Insert badges.\n    Notifications.Badge.insert(badges)\n  }\n\n  @async\n  function change_urn(state, URN.t urn, force) {\n    current = URN.get()\n    if (current == urn && not(force))\n      \/\/ Add reloading calls to subviews.\n      void\n    else {\n      \/\/ Always reload the content.\n      content = Content.selector(state, urn)\n      sidebar = SidebarView.content(state, urn.mode)\n      badges = Notifications.Badge.fetch(urn.mode)\n      upload(urn, content, sidebar, badges)\n      \/\/ onboarding(state)\n    }\n  }\n\n  function update_callback(URN.t urn, _) {\n    update(urn, false)\n  }\n\n  @async\n  exposed function update(URN.t urn, bool force) {\n    \/\/ Get a new state. CHECK\n    state = Login.get_state()\n    change_urn(state, urn, force)\n  }\n\n  \/** Return to the main view. *\/\n  function reset() {\n    update(URN.init, true)\n  }\n\n  \/** Refresh the view. *\/\n  function refresh() {\n    update(URN.get(), true)\n  }\n\n  \/** Toggle an app sidebar. *\/\n  client function toggleSidebar(Mode.t mode, _evt) {\n    name = Mode.class(mode)\n    if (Dom.has_class(#{name}, \"active\")) hideSidebar(mode)\n    else showSidebar(mode)\n  }\n\n  \/** Display an app sidebar. *\/\n  client function showSidebar(Mode.t mode) {\n    name = Mode.class(mode)\n    Dom.show(#appsidebar)\n    \/\/ Close open sidebars.\n    Dom.iter(function (sidebar) {\n      Parser.parse(parser {\n        case \"sidebar_\" id=Rule.ident:\n          if (id != name) { \/\/ Spare the mode to load.\n            Dom.remove_class(#{id}, \"active\") \/\/ Toggle the topbar icon.\n            Dom.remove_class(sidebar, \"app-visible\") \/\/ remove active class.\n            Dom.hide(sidebar) \/\/ Hide the sidebar (do not destroy it: keep the state).\n          }\n        case .*: void\n      }, Dom.get_id(sidebar))\n    }, Dom.select_class(\"app-sidebar\"))\n    \/\/ Look up mode sidebar.\n    sidebar = #{\"sidebar_{name}\"}\n    if (Dom.is_empty(sidebar)) #appsidebar += buildSidebar(mode) \/\/ Load the sidebar.\n    else Dom.show(sidebar) \/\/ Toggle the existing sidebar.\n    \/\/ Activate topbar icon.\n    Dom.add_class(#{name}, \"active\")\n    Dom.add_class(#{\"sidebar_{name}\"}, \"app-visible\")\n    \/\/ Reset badges.\n    Notifications.Badge.reset(mode)\n  }\n\n  \/** Hide an app's sidebar. *\/\n  client function hideSidebar(Mode.t mode) {\n    name = Mode.class(mode)\n    Dom.iter(Dom.hide, #{\"sidebar_{name}\"})\n    Dom.hide(#appsidebar)\n    Dom.remove_class(#{name}, \"active\")\n    Dom.remove_class(#{\"sidebar_{name}\"}, \"app-visible\")\n  }\n\n  \/** Build a sidebar. *\/\n  exposed function buildSidebar(Mode.t mode) {\n    state = Login.get_state()\n    name = Mode.class(mode)\n    if (not(Login.is_logged(state))) login_please\n    else\n      <div class=\"app-sidebar\" id=\"sidebar_{name}\" style=\"width: 320px;\">\n        {selector(state, URN.make(mode, []))}\n      <\/div>\n  }\n\n}\n","old_contents":"\/*\n * PEPS is a modern collaboration server\n * Copyright (C) 2015 MLstate\n *\n * This program is free software: you can redistribute it and\/or modify\n * it under the terms of the GNU Affero General Public License as published\n * by the Free Software Foundation, either version 3 of the License, or\n * (at your option) any later version.\n *\n * This program is distributed in the hope that it will be useful,\n * but WITHOUT ANY WARRANTY; without even the implied warranty of\n * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n * GNU Affero General Public License for more details.\n *\n * You should have received a copy of the GNU Affero General Public License\n * along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n *\/\n\n\npackage com.mlstate.webmail.view\n\n\/\/ Global alias used in all views\nWB = WBootstrap\n\nmodule Keyboard {\n\n  client function Dom.event_propagation propagation_handler(Dom.event e) {\n    propagation = {stop_propagation : false, prevent_default : false};\n    if (not(Dom.is_empty(Dom.select_raw_unsafe(\"input:focus, textarea:focus\"))))\n      propagation\n    else\n      match (e) {\n      case { key_code : { some : 47 }, ... }:\n        {propagation with prevent_default : true}\n      case { key_code : { some : 114 }, key_modifiers : [], ... }:\n        {propagation with prevent_default : true}\n      default: propagation\n      }\n  }\n\n  client function handler(Dom.event e) {\n    if (not(Dom.is_empty(Dom.select_raw_unsafe(\"input:focus, textarea:focus\"))))\n      void\n    else {\n      match (e) {\n      case { key_code : { some : 99 }, key_modifiers : [], ... }:\n        ComposeView.new(\"\", e)\n      case { key_code : { some : 117 }, key_modifiers : [], ... }:\n        UploadView.show(e)\n      case { key_code : { some : 109 }, key_modifiers : [], ... }:\n        MessageView.mark_read(e)\n      \/\/ case { key_code : { some : 105 }, key_modifiers : [], ... }:\n      \/\/   Dom.trigger(#info_toggle, {click})\n      case { key_code : { some : 47 }, ... }: SearchView.focus(e)\n      \/\/ case { key_code : { some : 114 }, key_modifiers : [], ... }:\n      \/\/   Dom.trigger(#quick_reply, {click})\n      case { key_code : { some : 115 }, key_modifiers : [], ... }:\n        Dom.trigger(#star_message, {click})\n      case { key_code : { some : 106 }, key_modifiers : [], ... }:\n        MessageView.Snippet.next(e)\n      case { key_code : { some : 107 }, key_modifiers : [], ... }:\n        MessageView.Snippet.prev(e)\n      default: void\n      }\n    }\n  }\n\n}\n\nclient logout_timer_time = ClientReference.create(60)\nclient logout_timer_ctxt = ClientReference.create(option(ThreadContext.client) {none})\n\nmodule Content {\n\n    log = Log.notice(\"Content\", _)\n    error = Log.error(\"Content\", _)\n\n    \/\/ \/\/ FIXME: move to automated JS\n    \/\/ function choose_selected_box(anchor) {\n    \/\/     function act(anchor) {\n    \/\/         Dom.remove_class(Dom.select_raw_unsafe(\"li\"), \"selected\");\n    \/\/         Dom.add_class(Dom.select_class(anchor), \"selected\");\n    \/\/         void\n    \/\/     }\n    \/\/     update({messages: {inbox}}, anchor)\n    \/\/ }\n\n    \/\/ client function update_items(anchor) {\n    \/\/     Content.choose_selected_box(anchor);\n    \/\/     void\n    \/\/ }\n\n    function insert_loading() {\n        Log.info(\"Loading\", \"content...\");\n        if (Dom.is_empty(#loading-content)) {\n          loading =\n            <div id=\"loading-content\" class=\"loading-content\" >\n              <img src=\"\/resources\/img\/loader.gif\" alt=\"{@intl(\"Loading...\")}\"\/>\n            <\/div>;\n          #content = loading\n        } else void\n    }\n\n    function make_alert(string title, xhtml description) {\n      WBootstrap.Alert.make({\n        block: ~{ title, description },\n        actions: none,\n        closable: false\n      }, {error})\n    }\n\n    login_please =\n      make_alert(\n        @intl(\"Your session has expired!\"),\n        <>{@intl(\"Please log in to access this resource\")}<\/>\n      )\n\n    non_existent_resource =\n      make_alert(\n        @intl(\"Oops!\"),\n        <>{@intl(\"Looks like the resource you are looking for does not exist ...\")}<\/>\n      )\n\n    not_allowed_message =\n      make_alert(\n        @intl(\"Sorry!\"),\n        XmlConvert.of_alpha(AppText.not_allowed_message())\n      )\n\n    not_allowed_resource =\n      make_alert(\n        \"Sorry!\",\n        XmlConvert.of_alpha(AppText.not_allowed_resource())\n      )\n\n    exposed function logout_and_reload(ctx) {\n      state = Login.get_state()\n      log(\"logout_and_reload: unlogging {state}\")\n      key = state.key\n      error(\"INACTIVE LOGOUT {key}\")\n      Login.logout()\n      ClientEvent.remove_inactivity_delay(ctx)\n      Client.do_reload(false)\n    }\n\n    client function do_confirm(ctx, btn_id, confirmed, _) {\n      Button.reset(#{btn_id})\n      Modal.hide(#modal_logout_confirm)\n      stop_logout_timer()\n      if (confirmed) {\n        logout_and_reload(ctx)\n      }\n    }\n\n    recursive private client function logout_timer_function() {\n      time = ClientReference.get(logout_timer_time)\n      if (time > 0) {\n        time = time - 1\n        ClientReference.set(logout_timer_time, time)\n        #logout_confirm_time = AppText.logout_timer(time)\n      } else {\n        logout_timer.stop()\n        match (ClientReference.get(logout_timer_ctxt)) {\n        case {some:ctx}: logout_and_reload({some:ctx});\n        case {none}: void;\n        }\n      }\n    }\n\n    recursive private client logout_timer = Scheduler.make_timer(1000, logout_timer_function)\n\n    client function start_logout_timer(ctx) {\n      ClientReference.set(logout_timer_time, AdminController.get_grace_period())\n      ClientReference.set(logout_timer_ctxt, ctx)\n      logout_timer.start()\n    }\n\n    client function stop_logout_timer() {\n      ClientReference.set(logout_timer_ctxt, {none})\n      logout_timer.stop()\n    }\n\n    function logout_confirm(ctx) {\n      Modal.make(\n       \"modal_logout_confirm\",\n       <>{AppText.session_expired()}<\/>,\n       <><div>{AppText.logout_confirm()}<\/div>\n         <div id=\"logout_confirm_time\">{AppText.logout_timer(AdminController.get_grace_period())}<\/div>\n       <\/>,\n       (WBootstrap.Button.make({button:<><i class=\"fa fa-check\"><\/i> {AppText.yes()}<\/>,\n                        callback:do_confirm(ctx, \"confirm_yes\", true, _)}, [{success}])\n        |> Xhtml.add_id(some(\"confirm_yes\"), _)) <+>\n       (WBootstrap.Button.make({button:<><i class=\"fa fa-times\"><\/i> {AppText.no()}<\/>,\n                        callback:do_confirm(ctx, \"confirm_no\", false, _)}, [{primary}])\n        |> Xhtml.add_id(some(\"confirm_no\"), _)),\n       {Modal.default_options with backdrop : false, static : false, keyboard : false})\n    }\n\n    \/\/ FIXME: not here\n    exposed function init_server(channel) {\n      state = Login.get_state()\n      key = state.key\n      if (not(Login.is_logged(state))) void\n      else {\n        ctx = ThreadContext.Client.get_opt({current})\n        timeout = Duration.min(AdminController.get_timeout())\n        _ = ClientEvent.set_inactivity_delay(ctx, timeout)\n        clek =\n            ClientEvent.set_on_inactive_client(function(ctx) {\n              start_logout_timer({some:ctx})\n              Modal.show(#modal_logout_confirm)\n            })\n        Dom.bind_beforeunload_confirmation(function(_) {\n          Notification.unregister(key, channel)\n          ClientEvent.remove_event(clek)\n          ClientEvent.remove_inactivity_delay(ctx)\n          none\n        })\n        Intl.setLocale(User.getLocale(key))\n        Notification.register(key, channel)\n        \/\/ Update profile picture.\n        match (Option.bind(RawFile.get_thumbnail, User.get_picture(state.key))) {\n          case {some: picture}:\n            #profile_picture = <img src={Utils.dataUrl(picture)} class=\"user-img\"\/>\n          default: void\n        }\n      }\n    }\n\n    xhtml drop_file =\n        <>\n         <img id=\"compose_file_loader\" src=\"\/resources\/img\/loader.gif\" style={\n         [Css_build.display({css_none})]}\/>\n         {@intl(\"Drop files here\")}\n        <\/>\n\n    \/\/ client function clear_modal_errors() {\n    \/\/   Dom.remove_class(Dom.select_raw_unsafe(\"#modal_compose .form-group\"), \"error\")\n    \/\/ }\n\n    client function clear_tooltips() {\n      Dom.remove(Dom.select_class(\"tooltip\"))\n    }\n\n\n    exposed function do_setup_admin(pass) {\n      \/\/ Build admin user.\n      if (Admin.undefined()) {\n        Admin.create(pass)\n        Login.login(\"admin\", pass)\n      }\n    }\n    client function setup_admin(_evt) {\n      pass = Dom.get_value(#pass) |> String.trim\n      passrepeat = Dom.get_value(#passrepeat) |> String.trim\n\n      if (pass != passrepeat || pass == \"\") Notifications.error(\"Error\", <>{@intl(\"Invalid password\")}<\/>)\n      else do_setup_admin(pass)\n    }\n\n    protected function signin(state) {\n      <>\n      <h3>{AppText.sign_in_to_mailbox()}<\/h3>\n      <div id=\"login\">\n        {Login.build(state)}\n      <\/div>\n      { if (not(Admin.only_admin_can_register())) {\n          <a onclick={function(_){ #signin_well = signup(state) }}>\n            {@intl(\"Don't have an account? Sign up\")}\n          <\/a>\n        }\n        else <><\/>\n      }\n      <\/>\n    }\n\n    protected function signup(state) {\n      AdminView.register(state, none) <+>\n      <a onclick={function(_){ #signin_well = signin(state) }}>\n        {@intl(\"Already have an account? Sign in\")}\n      <\/a>\n    }\n\n    \/** Log in window, if user is not connected. *\/\n    @expand protected function loginbox(state) {\n      <div class=\"home-card\">\n        <div class=\"container\">\n          <div class=\"app-icon\"><\/div>\n          <h1>{Admin.logo()}<\/h1>\n          <div class=\"well\">\n            <div id=\"signin_well\">\n              {signin(state)}\n            <\/div>\n          <\/div>\n        <\/div>\n      <\/div>\n    }\n\n\n    @expand protected function passwordbox(state) {\n      <div class=\"home-card\">\n        <div class=\"container\">\n          <div class=\"app-icon\"><\/div>\n          <h1>{Admin.logo()}<\/h1>\n          <div class=\"well\">\n            <h3>{@intl(\"Setup your PEPS in two steps\")}<\/h3>\n            <form role=\"form\" class=\"form-simple\">\n              <div class=\"form-group\">\n                <label class=\"control-label\" for=\"domain\">{@intl(\"Admin Password\")}<\/label>\n                <input id=\"pass\" type=\"password\" class=\"form-control\" placeholder=\"{@intl(\"Password\")}\"\/>\n              <\/div>\n              <div class=\"form-group\">\n                <label class=\"control-label\" for=\"domain\">{@intl(\"Repeat\")}<\/label>\n                <input id=\"passrepeat\" type=\"password\" class=\"form-control\" placeholder=\"{@intl(\"Password repeat\")}\"\/>\n              <\/div>\n              <div class=\"form-group\">\n                <button type=\"button\" class=\"btn btn-block btn-primary\" onclick={setup_admin}>{@intl(\"Next\")}<\/button>\n              <\/div>\n            <\/form>\n          <\/div>\n        <\/div>\n      <\/div>\n    }\n\n    \/**\n     * Function called when the main page is ready.\n     * URN is some if the user is logged in, else none.\n     *\/\n    client function init_client(option(URN.t) urn, _) {\n      Dom.bind_with_options(\n        Dom.select_document(),\n        {keypress}, Keyboard.handler,\n        [ {propagation_handler : Keyboard.propagation_handler} ]\n      ) |> ignore\n      Collapse.init(Dom.select_class(\"collapse\"))\n      Dropdown.init(Dom.select_class(\"dropdown-toggle\"))\n\n      channel = Session.make_callback(Notifications.handler)\n      init_server(channel)\n      \/\/ TODO: preserve last mode and path?\n      log(\"init_client: {urn}\")\n      Option.iter(update(_, true), urn)\n    }\n\n    protected function build(Login.state state, URN.t urn) {\n      unprotected = Mode.unprotected(urn.mode) \/\/ Give access to unprotected share links.\n      logged = Login.is_logged(state)\n\n      (view, _, _, _) = SettingsController.get_user_preferences(state.key)\n      cl = if (view == {folders}) \" narrow\" else \"\"\n      init = if (logged || unprotected) init_client(some(urn), _) else init_client(none, _)\n      modals =\n        if (Mode.is_share(urn.mode))\n          <><\/>\n        else\n          logout_confirm(ThreadContext.Client.get_opt({current})) <+>\n          FolderView.build_form(state, none) <+>\n          SearchView.build_form(state)\n\n      <div id=\"main\" onready={init} class=\"main o-selectable{cl}\">\n        <div class=\"notification_area o-selectable\" id=\"notification_area\"\/>{\n        if (Admin.undefined() && not(unprotected))\n          passwordbox(state)\n        else if (not(logged || unprotected))\n          loginbox(state)\n        \/\/ Condition shown iff active licensing.\n        else\n          <div id=\"appsidebar\" class=\"app-sidebar\" style=\"width:320px; display:none;\"><\/div> <+>\n          <div id=\"content\" class=\"content\"><\/div> <+>\n          modals\n      }<\/div>\n\n    }\n\n  protected function selector(state, URN.t urn) {\n    match (urn.mode) {\n      case {messages: box}:   MessageView.build_box(state, box, urn.path, none)\n      case {files: mode}:     FileView.build(state, mode, urn.path)\n      case {people: mode}:    PeopleView.build(state, mode, urn.path)\n      case {admin: mode}:     AdminView.build(state, mode, urn.path)\n      \/\/ TODO for Norman\n      case ~{app, active: _}: AppView.build(state, app, urn.path)\n      case {share: link}:     FileView.build_shared(link, urn.path)\n      case {settings: mode}:  SettingsView.build(state, mode, urn.path)\n      case {dashboard: mode}: Dashboard.build(state, mode, urn.path)\n      case {error}:           non_existent_resource\n    }\n  }\n\n  \/\/ function to verify view requirements\n  \/\/ should be called by every view main function to ensure consistency\n  function ensure(req, state, resource) {\n    if ((req=={logged} || req=={admin} || req=={super}) && not(Login.is_logged(state))) { login_please }\n    else if ((req=={admin} || req=={super}) && not(Login.is_admin(state))) { not_allowed_resource }\n    else if (req=={super} && not(Login.is_super_admin(state))) { not_allowed_resource }\n    else { resource }\n  }\n\n  \/** check_admin state *\/\n  check_admin = ensure({admin}, _, _)\n  check_super = ensure({super}, _, _)\n\n  function onboarding(state) {\n    if (SettingsController.onboarding(state.key)) {\n      match (OnboardView.build(state)) {\n        case {some: html}:\n          Notifications.warning(\"Welcome to PEPS\", html)\n          Dom.add_class(#notification_area, \"notify-static\")\n        default:\n          Dom.remove_class(#notification_area, \"notify-static\")\n      }\n    } else {\n      Dom.remove_class(#notification_area, \"notify-static\")\n    }\n  }\n\n  \/**\n   * Update the client state.\n   * Grouping the updates like this help reducing the number of client calls, and optimes the\n   * slicing delay.\n   *\/\n  client function upload(urn, content, sidebar, badges) {\n    \/\/ Clear current notifications.\n    URN.change(urn)\n    TopbarView.activate(urn.mode)\n    Notifications.clear()\n    Content.clear_tooltips()\n    \/\/ Updates contents.\n    #content = content\n    #sidebar = sidebar\n    \/\/ Insert badges.\n    Notifications.Badge.insert(badges)\n  }\n\n  @async\n  function change_urn(state, URN.t urn, force) {\n    current = URN.get()\n    if (current == urn && not(force))\n      \/\/ Add reloading calls to subviews.\n      void\n    else {\n      \/\/ Always reload the content.\n      content = Content.selector(state, urn)\n      sidebar = SidebarView.content(state, urn.mode)\n      badges = Notifications.Badge.fetch(urn.mode)\n      upload(urn, content, sidebar, badges)\n      \/\/ onboarding(state)\n    }\n  }\n\n  function update_callback(URN.t urn, _) {\n    update(urn, false)\n  }\n\n  @async\n  exposed function update(URN.t urn, bool force) {\n    \/\/ Get a new state. CHECK\n    state = Login.get_state()\n    change_urn(state, urn, force)\n  }\n\n  \/** Return to the main view. *\/\n  function reset() {\n    update(URN.init, true)\n  }\n\n  \/** Refresh the view. *\/\n  function refresh() {\n    update(URN.get(), true)\n  }\n\n  \/** Toggle an app sidebar. *\/\n  client function toggleSidebar(Mode.t mode, _evt) {\n    name = Mode.class(mode)\n    if (Dom.has_class(#{name}, \"active\")) hideSidebar(mode)\n    else showSidebar(mode)\n  }\n\n  \/** Display an app sidebar. *\/\n  client function showSidebar(Mode.t mode) {\n    name = Mode.class(mode)\n    Dom.show(#appsidebar)\n    \/\/ Close open sidebars.\n    Dom.iter(function (sidebar) {\n      Parser.parse(parser {\n        case \"sidebar_\" id=Rule.ident:\n          if (id != name) { \/\/ Spare the mode to load.\n            Dom.remove_class(#{id}, \"active\") \/\/ Toggle the topbar icon.\n            Dom.remove_class(sidebar, \"app-visible\") \/\/ remove active class.\n            Dom.hide(sidebar) \/\/ Hide the sidebar (do not destroy it: keep the state).\n          }\n        case .*: void\n      }, Dom.get_id(sidebar))\n    }, Dom.select_class(\"app-sidebar\"))\n    \/\/ Look up mode sidebar.\n    sidebar = #{\"sidebar_{name}\"}\n    if (Dom.is_empty(sidebar)) #appsidebar += buildSidebar(mode) \/\/ Load the sidebar.\n    else Dom.show(sidebar) \/\/ Toggle the existing sidebar.\n    \/\/ Activate topbar icon.\n    Dom.add_class(#{name}, \"active\")\n    Dom.add_class(#{\"sidebar_{name}\"}, \"app-visible\")\n    \/\/ Reset badges.\n    Notifications.Badge.reset(mode)\n  }\n\n  \/** Hide an app's sidebar. *\/\n  client function hideSidebar(Mode.t mode) {\n    name = Mode.class(mode)\n    Dom.iter(Dom.hide, #{\"sidebar_{name}\"})\n    Dom.hide(#appsidebar)\n    Dom.remove_class(#{name}, \"active\")\n    Dom.remove_class(#{\"sidebar_{name}\"}, \"app-visible\")\n  }\n\n  \/** Build a sidebar. *\/\n  exposed function buildSidebar(Mode.t mode) {\n    state = Login.get_state()\n    name = Mode.class(mode)\n    if (not(Login.is_logged(state))) login_please\n    else\n      <div class=\"app-sidebar\" id=\"sidebar_{name}\" style=\"width: 320px;\">\n        {selector(state, URN.make(mode, []))}\n      <\/div>\n  }\n\n}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c9759043d313568a8826a2e39900cfe52000c198","subject":"renaming stuff","message":"renaming stuff\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=recompute_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"e50d284ddc7fe5d72d7a2bb3e36669008f3317e8","subject":"bug fix, hack to handle drag leaving the quarter view","message":"bug fix, hack to handle drag leaving the quarter view\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_viewbox = Mutable.make(Option.none);\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_viewbox.set(Option.some(this_viewbox));\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) =\n          with_v(this_viewbox) =\n            if this_viewbox.inbox(bad_pos) then\n              cont(this_viewbox.clear_near_far(last_coord_fixer(bad_pos)))\n            else\n              Log.warning(\"Incorrect mouseup\", \"at bad_pos={bad_pos}\");\n          Option.iter(with_v, last_viewbox.get());\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  last_clear_near_far = Mutable.make((x -> x));\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          do last_clear_near_far.set(this_viewbox.clear_near_far);\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) = cont(last_clear_near_far.get()(last_coord_fixer(bad_pos)));\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = mouse_listener({mouseup; pos=x});\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cc867d0cd74e499a5be51e5809fc5eedae5dc04e","subject":"some more renaming","message":"some more renaming\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  selection_change_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  others_add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection_change(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.others_add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection_change(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.selection_change_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  tool: Modeler.tool\n} ;\n\nScene = {{\n  empty() : Modeler.scene =\n    c(pos) = {cube=pos; id=CHF(); color=ColorFloat.random()};\n    { selection=Option.some(c((0.0, 0.0, -3.0))); others=[ c((3.0, 0.0, 0.0)), c((6.0, 0.0, 0.0)) ] };\n\n  find_object(objects, target_id) : option(Modeler.objects) = List.find((z -> z.id == target_id), objects);\n  extract_object(objects, target_id) : (option(Modeler.objects), list(Modeler.objects)) = List.extract_p((z -> z.id == target_id), objects);\n  add_object(objects, object) : list(Modeler.objects) = List.cons(object, objects);\n\n  change_selection_color(scene, new_color) : Modeler.scene = \n    match scene.selection with\n    | {none} -> scene\n    | {some=an_object} -> { scene with selection=Option.some({ an_object with color=new_color }) }\n    end ;\n\n  add_cube(scene, where) : Modeler.scene = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF(); color=ColorFloat.random()}, scene.others) };\n\n  selection(scene, possible_target) : Modeler.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) : Modeler.modeler = { address=scene_url; scene=Scene.empty(); tool={selection} } ;\n\n  tool_use(modeler, where, possible_target)  : Modeler.modeler = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : Modeler.modeler = { modeler with scene=Scene.change_selection_color(modeler.scene, new_color) };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { tool=Observable.make(modeler.tool); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.tool_use(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      modeler = Modeler.scene_change_selection_color(state.modeler, new_color);\n      set_modeler(modeler)\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"2685f17d24eff70177284040cdcb6195ef8d2f2d","subject":"removing unused field","message":"removing unused field\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        on_message_mouse_listener(state_mouse, msg, my_channel) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(my_channel, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty } }\n          | { mouseup; event=_; ~gl_pos; ~switch } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing } -> do f(); { unchanged }\n            | { running_down=l } ->\n              { set={ running_down=List.cons(f, l) } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing } -> do Log.debug(\"\", \"\"); { unchanged }\n            | { running_down=l } -> do List.iter((f -> f()), l); { set={ nothing } }\n            end\n          end;\n        channel_mouse_listener = Session.make_own({nothing}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; last_coord_fixer=Option.none; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler; last_coord_fixer=new_state.last_coord_fixer } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target; ~last_coord_fixer} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler; ~last_coord_fixer } }\n      else\n        state = { reset_subjects(modeler) with ~last_coord_fixer };\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      lock_mouse_event = Mutable.make(false);\n      mouse_listener =\n        on_message_mouse_listener(state_mouse, msg, my_channel) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos } ->\n            f(gpu_picker_regsiter) =\n              do lock_mouse_event.set(true);\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target; last_coord_fixer=Option.none});\n                Session.send(my_channel, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty } }\n          | { mouseup; event=_; ~gl_pos; ~switch } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing } -> do f(); { unchanged }\n            | { running_down=l } ->\n              { set={ running_down=List.cons(f, l) } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing } -> do Log.debug(\"\", \"\"); { unchanged }\n            | { running_down=l } -> do List.iter((f -> f()), l); { set={ nothing } }\n            end\n          end;\n        channel_mouse_listener = Session.make_own({nothing}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cef6d94bd5fe47bda0708eff91b0b0d1bad03724","subject":"* opa\/pfff_logger.opa: comments","message":"* opa\/pfff_logger.opa: comments\n","repos":"juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb directly\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to allow concurrent access to the db?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb directly\n *\n * todo: too slow, \n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to efficiently get the keys at the first level (all tools)?\n *  - how to allow concurrent access to the db?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"df6df944cab47f94ec615f4910c7fdebe81968f4","subject":"some comments","message":"some comments\n","repos":"MLstate\/OpaChat,MLstate\/MindChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, <><\/>, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\nor {media media}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  OpaShare.init(file_uploaded(user))\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, <><\/>, {success},\n    []\n  )\n}\n\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n      case {some:file}:\n        Resource.binary(file.content, file.mimetype)\n        |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n      default: start()\n    }\n  case (.*): start()\n}\n\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser }\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"20010678a473fddfd28b9c1b1a8ac92c990ca7d0","subject":"removing some value in double","message":"removing some value in double\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=in_mem.color \/* BUG update it *\/ }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list((vec3, bool, object));\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((_, _, object) -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((_, _, object) -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.f3.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube; f2=false }\n        | { none } -> (p.cube, false, Cube.create(gl, p, is_selected))\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others);\n        selection_scene = Option.switch((the -> [ { f(true, the) with f2=true } ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f3.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f3.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f056ba30b2d511411c69a8bdb6da41bf0ecb1531","subject":"typing engine scene","message":"typing engine scene\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\ntype engine.objects = { cube: (float, float, float) } ;\n\ntype engine.scene = list(engine.objects) ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos.cube, object, Option.some(c(i)))), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->engine.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = vec4.from_public((v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4));\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ vec4.str(v2) }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ {cube=(0.0, 0.0, -3.0)}, {cube=(3.0, 0.0, 0.0)}, {cube=(6.0, 0.0, 0.0)} ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.some(c(i)))), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = vec4.from_public((v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4));\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ vec4.str(v2) }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, -3.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"77b576fb5d77f7f2eec423d5842ee78092914926","subject":"* opa\/pfff_logger.opa: comment","message":"* opa\/pfff_logger.opa: comment\n","repos":"juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,rpau\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb, via OPA api, or just curl them?\n *  - use couchdb or mongodb directly without OPA at all ...\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to allow concurrent access to the db?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *  - use couchdb or mongodb directly\n *\n * todo: too slow, \n *  - how to efficiently get the keys at the first level (all tools)?\n *  - need to use \/db[cmd][date]? cos reinsert full list is too slow?\n *  - how to allow concurrent access to the db?\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/todo: this is really slow\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"804289846fae7162225f5cd3c98bf22c38b2fcc2","subject":"fix using the corresponding size","message":"fix using the corresponding size\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\n\n\ndisplay(eng, pMatrix, mvMatrix, object, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum\n}\n\n\n\ndisplay(eng, pMatrix, mvMatrix, object, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl) } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8021d768a6ba8f13b63d0ff53d8ec2baeca8d4ed","subject":"fixing selection after loading","message":"fixing selection after loading\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span><\/label>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"type GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id);\n        set_modeler(modeler)\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id);\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                     color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          do\n            c(a_color) = Color.color_to_string(a_color);\n            on_sel_color_change =\n              then_do(new_color) = \n                new_color = ColorFloat.to_Color_color(new_color);\n                do Dom.transform([#{id}<- c(new_color)]); \n                Dom.set_style(#{id}, [ {background=Css_build.background_color(new_color)} ]);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          s(new_color) = (_ -> Session.send(channel, {modeler_change_scene_selection_color; ~new_color}));\n          <label>Color: <span id=#{id} width=\"5px\" height=\"5px\" onclick={s(ColorFloat.random())} >*<\/span><\/label>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"4d55577c715c6a3f422caba4a9c0739f5e79d40e","subject":"removing unused variable","message":"removing unused variable\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3))) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene);\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]));\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = void;\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9a8e0e520dbadec73d3b0677d321deb930796d55","subject":"[fix] compilation: Mutable.make_client has disappeared","message":"[fix] compilation: Mutable.make_client has disappeared\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"41ba37e5f03cfb06a059e67a088c82ac522d1415","subject":"[bugfix] bad formatted message when author leave the chat","message":"[bugfix] bad formatted message when author leave the chat\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  do update_stats(mem)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:string) =\n  init_client() =\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update(get_memory_usage()), history)\n    Network.add_callback(user_update(get_memory_usage()), room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast({author=author}, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(author)])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  do update_stats(mem)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update(get_memory_usage()), history)\n    Network.add_callback(user_update(get_memory_usage()), room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c3dda6bf947a8dab48a6f449c03df7b5bb559df9","subject":"[perfs] greatly improved XHR requests per message","message":"[perfs] greatly improved XHR requests per message\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  Dom.scroll_to_bottom(Dom.select_body())\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history = List.rev(List.take(20, \/history))\n    \/\/ FIXME: optimize this...\n    \/\/do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   ) |> Xhtml.add_onready(_ -> Dom.give_focus(#entry), _)\n\nload(broadcast) =\n  do Dom.transform([#main <- <>Loading...<\/>])\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div> |> Xhtml.add_onready(_ -> Dom.give_focus(#author), _)\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  Dom.scroll_to_bottom(Dom.select_body())\n\nbroadcast(author, class, text) =\n  message = {~author ~text date=Date.now() event=class}\n  do Network.broadcast(message, room)\n  do \/history <- [message | \/history]\n  Dom.clear_value(#entry)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\nlaunch(author) =\n  init_client() =\n    history = List.rev(List.take(20, \/history))\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   send_message() =\n     broadcast({~author}, \"\", Dom.get_value(#entry))\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar>\n       <input id=#entry onnewline={_ -> send_message()}\/>\n       <span class=\"button\" onclick={_ -> send_message()}>Send<\/span>\n     <\/div>\n   ) |> Xhtml.add_onready(_ -> Dom.give_focus(#entry), _)\n\nstart() =\n   go(_) =\n     do Dom.transform([#main <- <>Loading...<\/>])\n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast({system}, \"join\", \"{author} is connected to the room\")\n   <div id=#main>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span><input id=#author onnewline={go}\/>\n       <span class=\"button\" onclick={go}>Join<\/span>\n     )\n   }<\/div> |> Xhtml.add_onready(_ -> Dom.give_focus(#author), _)\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ecfee27063c0ffe60f340b3d981ecb47ff1a5e94","subject":"small fix for upload of empty file","message":"small fix for upload of empty file\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/share.opa","new_file":"src\/share.opa","new_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      match (String.index(\"base64,\", content)) {\n      case {none}: binary_of_string(content)\n      case {some:i}:\n        offset = i + 7\n        data = String.sub(offset, String.length(content)-offset, content)\n        Crypto.Base64.decode(data) |> binary_of_string\n      }\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","old_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode(data) |> binary_of_string\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"daf9823da2bd6604a95d2ece2c281600c01e9748","subject":"base code for selection delete","message":"base code for selection delete\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; cube:Scene.objects } \/ { change_color; id: hidden_id; new_color: ColorFloat.color } \/ {move_object; id: hidden_id; where:(float, float, float) } \/ { delete_object; id: hidden_id } ;\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = \n  { add_cube; where: {x: float; y: float; z:float } } \n\/ { selection_change_color; new_color: ColorFloat.color } \n\/ { selection_change; possible_target: option(hidden_id) } \n\/ { possible_move; where: {x: float; y: float; z:float }}\n\/ { selection_delete };\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~cube } -> add_object(scene, cube)\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    | {move_object; ~where; ~id} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with cube=where });\n      Option.switch(f, scene, otarget)\n    | {delete_object; ~id} ->\n      (_, scene) = extract_object(scene, id);\n      scene\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } -> \n      command = { add_cube; cube={ cube=(where.x, where.y, where.z); color=ColorFloat.random(); id=scene.others.CPF() } } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { possible_move; ~where } ->\n      f(sel) = { pid=scene.others.CPF(); command={ move_object; where=(where.x, where.y, where.z); id=sel.id } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    | { selection_delete } -> \n      f(sel) = { pid=scene.others.CPF(); command={ delete_object; id=sel.id } };\n      Option.map(f, scene.selection)\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n  \n  do_possible_move(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, { possible_move; ~where });\n\n  selection_delete(scene) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_delete});\n\n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  do_possible_move(modeler, where) : (Modeler.modeler, option(Scene.patch)) =\n    match modeler.tool with\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.do_possible_move(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {add_cube} -> (modeler, Option.none)\n    end;\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n  scene_delete_selection(modeler) : (Modeler.modeler, option(Scene.patch)) =\n    (scene, opatch) = `Scene.Client`.selection_delete(modeler.scene);\n    ({ modeler with ~scene }, opatch);\n\n}} ;\n\n","old_contents":"\ntype Scene.objects = { cube: (float, float, float); id: hidden_id; color: ColorFloat.color } ;\n\ntype Scene.scene = { objs: list(Scene.objects); CPF: Fresh.next(hidden_id) };\ntype Scene.command = { add_cube; cube:Scene.objects } \/ { change_color; id: hidden_id; new_color: ColorFloat.color } \/ {move_object; id: hidden_id; where:(float, float, float) };\ntype Scene.patch = { pid: patch_id;  command: Scene.command };\n\ntype Scene.Client.command = { add_cube; where: {x: float; y: float; z:float } } \/ { selection_change_color; new_color: ColorFloat.color } \/ { selection_change; possible_target: option(hidden_id) } \/ {possible_move; where: {x: float; y: float; z:float }};\n\ntype Scene.Client.scene = { selection: option(Scene.objects); others: Scene.scene };\n\ntype Modeler.tool = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Scene.Client.scene;\n  tool: Modeler.tool;\n  client_id: int\n} ;\n\nScene = {{\n  empty(F, client_id) : Scene.scene = { objs=List.empty; CPF=build_CPF(F, client_id) };\n\n  CPF_change(scene, F, client_id) : Scene.scene = { scene with CPF=build_CPF(F, client_id) };\n\n  cube(scene, pos) = {cube=pos; id=scene.CPF(); color=ColorFloat.random()};\n\n  find_object(scene : Scene.scene, target_id) : option(Scene.objects) = List.find((z -> z.id == target_id), scene.objs);\n  extract_object(scene, target_id) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract_p((z -> z.id == target_id), scene.objs);\n    (target, { scene with objs=rest });\n  extract_object_by_pos(scene, nth) : (option(Scene.objects), Scene.scene) = \n    (target, rest) = List.extract(nth, scene.objs);\n    (target, { scene with objs=rest });\n  add_object(scene, object) : Scene.scene = { scene with objs=List.cons(object, scene.objs) };\n  reinject_object(scene, oobject : option(Scene.objects)) : Scene.scene = Option.switch((an_o -> add_object(scene, an_o)), scene, oobject);\n\n  @private apply_command(scene, command : Scene.command) : Scene.scene = match command with\n    | {add_cube; ~cube } -> add_object(scene, cube)\n    | {change_color; ~id; ~new_color} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with color=new_color });\n      Option.switch(f, scene, otarget)\n    | {move_object; ~where; ~id} ->\n      (otarget, scene) = extract_object(scene, id);\n      f(an_o) = add_object(scene, { an_o with cube=where });\n      Option.switch(f, scene, otarget)\n    end ;\n\n  apply_patch(scene, patch : Scene.patch) : Scene.scene = apply_command(scene, patch.command) ;\n  apply_patchs(scene, patchs : list(Scene.patch)) : Scene.scene = List.fold((p, acc -> apply_patch(acc, p)), patchs, scene);\n\n}} ;\n\n`Scene.Client` = {{\n\n  @private @client CHF : Fresh.next(int) = Fresh.client((i -> i : int));\n\n  load(scene : Scene.scene, client_id) : Scene.Client.scene =\n    scene = Scene.CPF_change(scene, CHF, client_id);\n    (selection, others) = Scene.extract_object_by_pos(scene, 0);\n    { ~selection; ~others };\n\n  empty(client_id) : Scene.Client.scene = \n    load(Scene.empty(CHF, client_id), client_id);\n\n  @private get_scene(scene : Scene.Client.scene) : Scene.scene = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, scene.selection);\n\n  command_to_scene_patch(scene, cmd : Scene.Client.command) : option(Scene.patch) = \n    match cmd with\n    | { add_cube; ~where } -> \n      command = { add_cube; cube={ cube=(where.x, where.y, where.z); color=ColorFloat.random(); id=scene.others.CPF() } } : Scene.command;\n      Option.some({ pid=scene.others.CPF(); ~command})\n    | { selection_change_color; ~new_color } -> \n      f(sel) = { pid=scene.others.CPF(); command={ change_color; id=sel.id ; ~new_color } };\n      Option.map(f, scene.selection)\n    | { possible_move; ~where } ->\n      f(sel) = { pid=scene.others.CPF(); command={ move_object; where=(where.x, where.y, where.z); id=sel.id } };\n      Option.map(f, scene.selection)\n    | { selection_change; ... } -> Option.none\n    end;\n\n  selection_change_low(scene, possible_target) : Scene.Client.scene =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { scene with selection=Option.none; others=Scene.add_object(scene.others, some) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> Scene.add_object(scene.others, sel)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = Scene.extract_object(others, some);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { scene with selection=new_sel; ~others }\n    end ;\n\n  write_patch(scene, patch : Scene.patch) : Scene.Client.scene =\n    (selection, others) =\n      base = Scene.apply_patch(get_scene(scene), patch);\n      g(sel) = Scene.extract_object(base, sel.id);\n      Option.switch(g, (Option.none, base), scene.selection);\n    { scene with ~others; ~selection };\n\n  apply_command(scene, command : Scene.Client.command) : (Scene.Client.scene, option(Scene.patch)) =\n    match command with\n    | { selection_change; ~possible_target } -> (selection_change_low(scene, possible_target), Option.none)\n    | _ -> \n      command = command_to_scene_patch(scene, command);\n      do Log.debug(\"apply_command\", \"{command} \\t {scene.selection}\");\n      f(p) = write_patch(scene, p);\n      (Option.switch(f, scene, command), command)\n    end ;\n\n  others_add_cube(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {add_cube; ~where});\n\n  selection_change(scene, possible_target) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change; ~possible_target});\n\n  selection_change_color(scene, new_color) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, {selection_change_color; ~new_color});\n  \n  do_possible_move(scene, where) : (Scene.Client.scene, option(Scene.patch)) = apply_command(scene, { possible_move; ~where });\n\n}} ;\n\nModeler = {{\n  load(scene, scene_url, client_id) : Modeler.modeler = { address=scene_url; ~scene; tool={selection}; ~client_id } ;\n  empty(scene_url, client_id) : Modeler.modeler = load(`Scene.Client`.empty(client_id), scene_url, client_id);\n\n  tool_use(modeler, where, possible_target) : (Modeler.modeler, option(Scene.patch)) =\n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' with tool: '{modeler.tool}'\");\n    match modeler.tool with\n    | {add_cube} -> \n      (scene, opatch) = `Scene.Client`.others_add_cube(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.selection_change(modeler.scene, possible_target);\n      ({ modeler with ~scene }, opatch)\n    end ;\n\n  tool_change(modeler, new_tool) : Modeler.modeler = { modeler with tool=new_tool };\n\n  scene_change_selection_color(modeler, new_color) : (Modeler.modeler, option(Scene.patch)) = \n    (scene, opatch) = `Scene.Client`.selection_change_color(modeler.scene, new_color);\n    ({ modeler with ~scene }, opatch);\n\n  do_possible_move(modeler, where) : (Modeler.modeler, option(Scene.patch)) =\n    match modeler.tool with\n    | {selection} -> \n      (scene, opatch) = `Scene.Client`.do_possible_move(modeler.scene, where);\n      ({ modeler with ~scene }, opatch)\n    | {add_cube} -> (modeler, Option.none)\n    end;\n\n  write_patch(modeler, patch) : Modeler.modeler =\n    if (modeler.client_id == get_client_id_from_patch_id(patch.pid)) then\n      modeler\n    else\n      scene = `Scene.Client`.write_patch(modeler.scene, patch);\n      { modeler with ~scene };\n\n}} ;\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"b21488a085c204c2def2893a59a2c362355f0529","subject":"adding some check to clean observer","message":"adding some check to clean observer\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    mode: subject(Modeler.tool.mode);\n    selection: subject(option(Modeler.objects))\n    }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode); selection=Observable.make(modeler.scene.selection) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> \n      modeler = Modeler.use_tool(state.modeler, where, possible_target);\n      if Observable.get_state(state.subjects.selection) == modeler.scene.selection then\n        set_modeler(modeler)\n      else\n        subjects = { state.subjects with selection=Observable.change_state(modeler.scene.selection, state.subjects.selection) };\n        set({ ~subjects; ~modeler })\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(->true); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {~some} -> <>{ \"{some}\" }<\/>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection);\n    sel =\n      <div id=#{id} ><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.mode);\n        setup_selection_view(parent_sel, the_subjects.selection);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"3373973641b3cc8407336d3cfb62ea0ffc66a525","subject":"renaming types","message":"renaming types\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where) = \n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler.modeler, message) = match message with\n    | {click_on_scene; ~where} -> { set=Modeler.use_tool(state, where) }\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {click_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.mode = {selection} \/ {add_cube} ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where) = \n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {click_on_scene; ~where} -> { set=Modeler.use_tool(state, where) }\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {click_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c2a08eed78a84328c8e73ed4a61f926aa3bc1a0f","subject":"change event","message":"change event\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list((vec3, bool, object));\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, is_selected, object) -> display(eng, pMatrix, mvMatrix, pos, object, false, is_selected)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, _, object) -> display(eng, pMatrix, mvMatrix, pos, object, true, false)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f3.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube; f2=false }\n        | { none } -> (p.cube, false, Cube.create(gl, p.id))\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f, tmp.others);\n        selection_scene = Option.switch((the -> [ { f(the) with f2=true } ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f3.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f3.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { click }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list((vec3, bool, object));\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, is_selected, object) -> display(eng, pMatrix, mvMatrix, pos, object, false, is_selected)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, _, object) -> display(eng, pMatrix, mvMatrix, pos, object, true, false)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f3.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube; f2=false }\n        | { none } -> (p.cube, false, Cube.create(gl, p.id))\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f, tmp.others);\n        selection_scene = Option.switch((the -> [ { f(the) with f2=true } ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f3.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f3.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"3db5d59794813a1a36793c689a82f7764aa0b6a4","subject":"added a block for futur stats location","message":"added a block for futur stats location\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nupdate_stats() = void\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cac10d009b8c2d4f7d43b184804c3c8945cfacc3","subject":"3d was missing, plus verif","message":"3d was missing, plus verif\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, -(90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.some(c(i)))), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = vec4.from_public((v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4));\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ vec4.str(v2) }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, -3.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer\n} ;\n\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\npc =\n  c() = \n    r() = Random.float(1.0);\n    (r(), r(), r())\n  List.fold((e, acc -> IntMap.add(e, c(), acc)), List.init(identity, 10), IntMap.empty)\n;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, -(90. * Math.PI \/ 180.), tmp_pMatrix)\n    | _ ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.none)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      c(i) = IntMap.get(i, pc) ? (0.1, 0.2, 0.3);\n      do List.iteri((i, (pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, Option.some(c(i)))), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do match get_mode() with\n    | {pick=pos; ~close} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = vec4.from_public((v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4));\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ vec4.str(v2) }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      close()\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; close=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; close=(->mode.set({normal}))});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), mode.get);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"70c67385c17def897241bcc545ea6ae58b72c2a7","subject":"clean","message":"clean\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{core.date,web.client,system}\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(title, content) {\n  <div id=#header>\n    <img src=\"\/resources\/img\/opa-cloud-logo.png\" class=\"pull-left\"\/>\n    {title}\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { match (message.source) {\n                case {system} : <span class=\"system\"\/>\n                case {~user} : <span class=\"user\">{user.name}<\/span>\n                } }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  default : void\n  }\n}\n\nserver function init_client(user, client_channel) {\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({user: user}, _)\n  #Body = build_page(\n    <div class=\"buttons\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <div id=#sidebar>\n      <div id=#user_list\/>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  #content = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nserver function start() {\n  build_page(\n    <h1>OpaChat<\/h1><h4>A real-time web chat built in Opa<\/h4>,\n    <div id=#login>\n      <label for=\"name\">Choose your name: <\/label>\n      <input id=#name placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n      <button class=\"btn primary\"\n              onclick={join}>Join<\/button>\n    <\/div>\n    <div class=\"buttons\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  )\n}\n\nServer.start(Server.http, [\n  {resources: @static_resource_directory(\"resources\")}, \/\/ include resources directory\n  {register: [\"\/resources\/css\/bootstrap.min.css\", \"\/resources\/css\/style.css\"]}, \/\/ web application CSS\n  {title: \"OpaChat - a real-time web chat built in Opa\", page:start} \/\/ title and start page\n  ]\n)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{core.date,web.client,system}\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(list(user)) users = ServerReference.create([])\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(title, content) {\n  <div id=#header>\n    <img src=\"\/resources\/img\/opa-cloud-logo.png\" class=\"pull-left\"\/>\n    {title}\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, List.add(user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, List.remove(user, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { match (message.source) {\n                case {system} : <span class=\"system\"\/>\n                case {~user} : <span class=\"user\">{user.name}<\/span>\n                }\n              }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n    users_html_list = List.fold(function(elt, acc) {\n                        <><li>{elt.name}<\/li>{acc}<\/>\n                      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  default : void\n  }\n}\n\nserver function init_client(user, client_channel) {\n  Log.notice(\"Init\", \"client\")\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  Log.notice(\"Init\", \"{user_name} entered chat\")\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  broadcast = broadcast({user: user}, _)\n  #Body = build_page(\n    <div class=\"buttons\">\n      {watch_button}\n      {fork_button}\n    <\/div>,\n    <div id=#sidebar>\n      <div id=#user_list\/>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n    <\/div>\n    <div id=#content>\n      <div id=#conversation onready={function(_){init_client(user, client_channel)}}\/>\n      <div id=#chatbar>\n        <input id=#entry\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={broadcast}\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient function join(_) {\n  name = Dom.get_value(#name)\n  #welcome = <p>Loading chat...<\/p>\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\nfunction start() {\n  build_page(<h1>OpaChat<\/h1><h4>A real-time web chat built in Opa<\/h4>,\n    <div id=#login>\n      <label for=\"name\">Choose your name: <\/label>\n      <input id=#name placeholder=\"Name\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n      <button class=\"btn primary\"\n              onclick={join}>Join<\/button>\n    <\/div>\n    <div class=\"buttons\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  )\n}\n\nServer.start(Server.http, [\n  {resources: @static_resource_directory(\"resources\")}, \/\/ include resources directory\n  {register: [\"\/resources\/css\/bootstrap.min.css\", \"\/resources\/css\/style.css\"]}, \/\/ web application CSS\n  {title: \"OpaChat - a real-time web chat built in Opa\", page:start}\n  ]\n)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ab4e352fef9e392044848b1da722e16ae845f422","subject":"indent","message":"indent\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\ninitGL(canvas) : void =\n  match Webgl.getContext(canvas, \"experimental-webgl\") with\n  | { some=gl } ->\n    squareVertexPositionBuffer = initBuffers(gl);\n    repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n    shaderProgram = initShaders(gl);\n    \/\/Clear screen and make everything black\n    do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"df309ab6f735e23aed08636c28e5bb3b218db132","subject":"[fix] update for 1.0.6","message":"[fix] update for 1.0.6\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/share.opa","new_file":"src\/share.opa","new_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      match (String.index(\"base64,\", content)) {\n      case {none}: binary_of_string(content)\n      case {some:i}:\n        offset = i + 7\n        data = String.sub(offset, String.length(content)-offset, content)\n        Crypto.Base64.decode(data)\n      }\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","old_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      match (String.index(\"base64,\", content)) {\n      case {none}: binary_of_string(content)\n      case {some:i}:\n        offset = i + 7\n        data = String.sub(offset, String.length(content)-offset, content)\n        Crypto.Base64.decode(data) |> binary_of_string\n      }\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"59cc4d07b21d74d0b8ebb24f9f11bfda45d661b2","subject":"typing the gui","message":"typing the gui\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { mode: subject(Modeler.tool.mode) }\n} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state : GuiModeler.t, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> set_modeler(Modeler.use_tool(state.modeler, where, possible_target))\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(->true); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) else setup_menu(parent_sel, channel, get_subjects().mode);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = { selection: option(Modeler.objects); others: list(Modeler.objects) };\n\ntype Modeler.tool.mode = {selection} \/ {add_cube} ;\n\ntype Modeler.modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.tool.mode\n} ;\n\nScene = {{ \n  empty() = { selection=Option.some({cube=(0.0, 0.0, -3.0); id=CHF()}); others=[ {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] };\n\n  add_cube(scene, where) = { scene with others=List.cons({cube=(where.x, where.y, where.z); id=CHF()}, scene.others) };\n\n  selection(scene, possible_target) =\n    match (possible_target, scene.selection) with\n    | ({none}, {none}) -> scene\n    | ({none}, {~some}) -> { selection=Option.none; others=List.cons(some, scene.others) }\n    | ({~some}, osel) -> \n      \/\/we put back the sel with others\n      others = Option.switch((sel -> List.cons(sel, scene.others)), scene.others, osel);\n      \/\/we retrieve the new sel\n      (new_sel, others) = List.extract_p((elt -> elt.id == some), others);\n      do if Option.is_none(new_sel) then Log.error(\"Scene\", \"a selection failed to find the corresponding object\");\n      { selection=new_sel; ~others }\n    end ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where, possible_target) = \n    do Log.info(\"Modeler\", \"using tool at ({where}) perhaps on the target: '{possible_target}' in mode: '{modeler.mode}'\");\n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> { modeler with scene=Scene.selection(modeler.scene, possible_target) }\n    end ;\n\n  change_tool(modeler, new_mode) = { modeler with mode=new_mode };\n\n}} ;\n\n@client GuiModeler = {{\n\n  empty(scene_url) = \n    modeler = Modeler.empty(scene_url);\n    subjects = { mode=Observable.make(modeler.mode) };\n    { ~modeler; ~subjects };\n\n  @private on_message(state, message) = \n    set_modeler(modeler) = { set={ state with ~modeler } } ;\n    set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(state) = { set=state };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} -> set_modeler(Modeler.use_tool(state.modeler, where, possible_target))\n    | {change_tool=new_mode} ->\n      modeler = Modeler.change_tool(state.modeler, new_mode);\n      subjects = { state.subjects with mode=Observable.change_state(new_mode, state.subjects.mode) };\n      set({ ~subjects; ~modeler })\n    end ;\n\n  setup_menu(parent_sel, channel, s_mode) : void =\n    f(some_mode) = match some_mode with\n      | {selection} -> (<>*Sel*<\/>, <>Cube<\/>)\n      | {add_cube} -> (<>Sel<\/>, <>*Cube*<\/>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_mode_change = \n      then_do(new_mode) = \n        (text_a, text_b) = f(new_mode);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(->true); ~then_do; else_autoclean };\n    do Observable.register(on_mode_change, s_mode);\n    menu =\n      s(x) = (_ -> Session.send(channel, {change_tool=x}));\n      <p><a id=#{id_a} onclick={s({selection})} >.<\/a> | <a id=#{id_b} onclick={s({add_cube})} >.<\/a><\/p>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n  \n  init(scene_url, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects) =\n        (channel, get_state) = SessionExt.make_with_getter(empty(scene_url), on_message);\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects)) ;\n      mouse_listener(e) = match e with\n        | { mousedown; ~pos; ~possible_target } -> Session.send(channel, {click_on_scene; where={x=pos.f1; y=pos.f2; z=pos.f3}; ~possible_target})\n        end ;\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, mouse_listener) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) else setup_menu(parent_sel, channel, get_subjects().mode);\n    base =\n      <canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"29830ca0bf3511dc488664605447ec5b8272775a","subject":"basic setup for selection mode on the scene","message":"basic setup for selection mode on the scene\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.mode = {selection} \/ {add_cube} ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}}\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {click_on_scene; ~where} ->\n      match state.mode with\n      | {add_cube} -> { set={ state with scene=Scene.add_cube(state.scene, where) }}\n      | {selection} -> {unchanged}\n      end\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    org_state = {\n      address=scene_url; scene=Scene.empty(); mode={selection}\n      } ;\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(org_state, on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {click_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}}\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {add_to_scene; ~where} ->\n      { set={ state with scene=Scene.add_cube(state.scene, where) }}\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    org_state = {\n      address=scene_url; scene=Scene.empty()\n      } ;\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(org_state, on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {add_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"786043c4a25a406060b28c918887114e3f01ec9a","subject":"little reorganisation of code","message":"little reorganisation of code\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else (0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=random_color(); ~id } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = (float, float, float);\n\n@private random_color() : engine.color =\n  \/\/ we draw color with float, but we read them back as integer\n  r() = float_of_int(Random.int(256)) \/ 255.;\n  (r(), r(), r());\n\ntype object = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id\n}\n\ndisplay(eng, pMatrix, mvMatrix, position, object, overide_color_for_picking, is_selected) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if is_selected then (0.7, 0., 0.) else (0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, id) =\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    \/\/this 9-element buffer actually represents three separate vertex \n    \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n    \/\/do Webgl.set_itemSize(cubeVertexPositionBuffer, 3);\n    \/\/do Webgl.set_numItems(cubeVertexPositionBuffer, 4);\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=random_color(); ~id } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"ebb1314f65ebb902cc17a77c9be7942562d7cd8b","subject":"[fix] big project: reduce the number of files actually listened","message":"[fix] big project: reduce the number of files actually listened\n","repos":"OpaOnWindowsNow\/opa-watch","old_file":"opa-dynamic.opa","new_file":"opa-dynamic.opa","new_contents":"\/** opa-dynamic\n  * Monitor a directory conataining a project, recompiles it and relaunch it when needed\n  *\/\n\nimport stdlib.io.file\nimport stdlib.core.concurrency\nimport stdlib.system\n\ndo Scheduler.sleep(1, -> main(CommandLine.filter(CommandLineConf)) ) \/\/ Workaround\n\n@expand\ndebug = #<Ifstatic:DEBUG> s -> println(\"[DEBUG] {s}\") #<Else> _ -> void #<End>\n\ntype config.notifier = {notify_send} \/ {terminal_notifier} \/ {none}\n\n\/** Configuration for one project directory *\/\ntype config = {\n  command : list(string) \/\/ list of command , inferred if empty\n  directory : string     \/\/ project directory\n  avoid_dir : list(string)\n  avoid_ext : list(string)\n  avoid_prefix : list(string)\n  launch : bool\n  opa_opt : string\n  notifier : config.notifier\n}\n\n\n\/\/ Add browser support, launch and reload\nDConfig = {{\n  \/** Control grouping delay of sequential events *\/\n  grouping_delay = Duration.ms(300)\n  config = {\n    command = [] \/\/ empty => inferred\n    directory=\".\"\n    avoid_dir=[\".git\", \"_build\", \"_tracks\",\"node_modules\"]\n    avoid_ext=[\".opx\", \"_depends\"\/*opa*\/, \".log\", \".bak\", \".old\", \"~\"\/*emacs*\/, \".exe\"]\n    avoid_prefix =[ \".#\"\/*emacs*\/, \"#\" ]\n    launch = true\n    opa_opt = \"\"\n    notifier = {notify_send}\n  }\n}}\n\nCommandLineConf = {{\n  title = \"OpaDyn\"\n  init = DConfig.config\n  anonymous = []\n  parsers = [\n    CommandLine.string([\"--src-dir\"],\"Directory to auto-build\",\"directory(={init.directory})\"){\n     s,c -> {c with directory = s}\n    },\n    CommandLine.string([\"--avoid-dir\"],\"Directory to avoid\",\"directory(={init.avoid_dir})\"){\n     s,c -> {c with avoid_dir=[s|c.avoid_dir]}\n    },\n    CommandLine.string([\"--avoid-ext\"],\"Extension to avoid\",\"extension(={init.avoid_ext})\"){\n     s,c -> {c with avoid_ext=[s|c.avoid_ext]}\n    },\n    CommandLine.string([\"--command\"],\"Command to build\",\"command(=inferred)\"){\n     s,c -> {c with command = [s|c.command]}\n    },\n    CommandLine.string([\"--opa-opt\"],\"Option for opa command\",\"opt\"){\n     s,c -> {c with opa_opt = \"{c.opa_opt} {s}\"}\n    },\n    CommandLine.switch([\"--no-launch\"],\"Last command is not a launch command\"){\n     c -> {c with launch = false}\n    },\n    cases = [\n      (\"no\", {none}),\n      (\"linux\", {notify_send}),\n      (\"mac\"  , {terminal_notifier}),\n      (\"windows\", {none})\n    ]\n    CommandLine.case([\"--notifier\"],cases,\n     \"Force platform notifier\", String.concat(\" or \",List.map(_.f1, cases))\n    ){\n     n,c -> {c with notifier = n}\n    },\n  ]\n}} : CommandLine.family(config)\n\navoid_file(config)(file) =\n      List.mem(file,config.avoid_dir)\n  ||  List.exists(String.has_suffix(_,file), config.avoid_ext)\n  ||  List.exists(String.has_prefix(_,file), config.avoid_prefix)\n\n\n\ntype command_queue_state = MutexRef.t({\n  need : bool\n  in_progress : option(Date.date) \/\/ Some => in progress\n})\n\ntype job = {\n  name : string\n  command : -> void\n}\n\n\/** projecting a function to an exclusive access queue,\n    only one function can be executed at the same time,\n    new execution demand during a previous exectution will be merge into one exectution\n    new execution demand that are very near in time are merged\n*\/\nexclusive_queue(command: -> void) = (\n\n  stateR = MutexRef.create({need=false progress=none})\n  finished() = do debug(\"XQUEUE FINISHED\") MutexRef.update(stateR){ state -> {state with progress=none} }\n  start() = do debug(\"XQUEUE START\") MutexRef.update(stateR){ state -> {state with progress=some(Date.now()) need=false} }\n  consume_need()  = MutexRef.exclusive(stateR){ ->\n    state = MutexRef.get(stateR)\n    do debug(\"XQUEUE CONSUME NEED {state}\")\n    do MutexRef.set(stateR, {MutexRef.get(stateR) with need=false})\n    state.need\n  }\n  rec proceed(id) =\n    do debug(\"TRY PROCEED {id}\")\n    if MutexRef.get(stateR).progress!=none then debug(\"STILL IN PROGRESS\") else\n    do debug(\"PROCEED\")\n    do start()\n    do command()\n    do finished()\n    if consume_need() then proceed(id)\n    else debug(\"XQUEUE END LOOP, WAITING\")\n\n  -> MutexRef.update(stateR){ state ->\n    \/\/ any transition to need=true without any in_progress work starts a new proceed_loop\n    if state.need then do debug(\"STILL IN NEED\") state else\n    need = match state.progress\n      {none} -> true\n      {some=t} ->\n        dt = Date.between(t,Date.now())\n        do debug(\"DT = {Duration.in_milliseconds(dt)} ms\")\n        dt > DConfig.grouping_delay \/\/ if far enough after starting progress\n      end\n    do if need then Scheduler.push( -> proceed(Random.string(4)) )\n    do debug(\"NEED = {need}\")\n    {state with ~need}\n  }\n\n)\n\n\/**\n  * Listening a set of file, and triggering command on any change that is not about avoided files.\n  *\/\njob_on_files_changes(avoid_file,files,_name,command)=\n  command=exclusive_queue(command)\n  handler_map = MutexRef.create(StringMap.empty)\n  _remove_file(file) = MutexRef.update(handler_map){\n    map -> StringMap.remove(file, map)\n  }\n  command_if_not_avoid(file) = if not(avoid_file(file)) then command() else debug(\"AVOIDED {file}\")\n  add_file(file) =\n    do debug(\"Listen {file} \")\n    is_directory = File.is_directory(file)\n    if not(is_directory) then void else\n    handler = File.onchange(file,none){file1, event ->\n      do  debug(\"EVENT[{file} {file1}] = {Debug.dump(event)}\")\n      match event\n      {change=file2} ->\n        do if is_directory then debug(\"file-change\") else debug(\"mod-or-delete\")\n        command_if_not_avoid(file2)\n      {rename=file2} ->\n        do if is_directory then debug(\"new-or-delete\") \/\/ TODO : HANDLE NEW FILE LISTENING HERE\n                           else debug(\"delete\")\n        command_if_not_avoid(file2)\n    }\n    do MutexRef.update(handler_map){ map ->\n      StringMap.add(file, handler, map)\n    }\n    debug(\"OK\")\n\n  do StringSet.iter(add_file,files)\n  command()\n\n\n\/** Collect recusively all path in a directory using an avoidance rule *\/\ncollect_files(avoid_file, rpath,dir) =\n  path = List.rev([dir|rpath])\n  pathstr = String.concat(\"\/\", path)\n  v = File.readdir(pathstr):outcome(llarray(string), string)\n  if avoid_file(dir) then []\n  else match v\n  {success=array} ->\n    do debug(\"DIR={pathstr}\")\n    subs = LowLevelArray.mapi(array){ _i,v ->\n      collect_files(avoid_file,[dir|rpath],v)\n    } |> LowLevelArray.fold(List.cons,_,List.empty) |> List.flatten\n    [path|subs]\n  {failure=_} -> [path]\n\n\nkeep_n_first_lines(n,s) = String.explode(\"\\n\", s) |> List.take(n,_) |> String.concat(\"\\n\",_)\n\/\/keep_n_last_lines(n,s)  = String.explode(\"\\n\", s) |> List.rev |> List.take(n,_) |> List.rev |> String.concat(\"\\n\",_)\n\nsummary_error(s) =\n  \/\/ TODO position could be simplified\n  errors = String.explode(\"Error:\", s)\n  nb_errors = List.length(errors)\n  if nb_errors > 0 then \"Error:\"^keep_n_first_lines(8, List.head(List.rev(errors))) else s\n\n\/\/ 8 lines max\nnotify_send(title,mess,positive) =\n  clear(s) = s |> String.replace(\"\\\"\", \" \", _) |> String.replace(\"\\'\", \" \", _)\n  icon = if positive then \"-i dialog-ok-apply\" else \"-i dialog-warning\"\n  mess = summary_error(mess)\n  do debug(\"NOTIFY {mess}\")\n  match System.shell_exec(\"notify-send {icon} -a Opa \\\"{clear(title)}\\\" \\\"{clear(mess)}\\\"\",\"\").result()\n  {error={some=err} ...} -> debug(\"Notify failure : {err}\")\n  ~{stderr stdout ...} -> debug(\"Notify ok : <<{stdout}{stderr}>>\")\n\nnotify =\n| {notify_send} -> notify_send\n| {terminal_notifier} | {none} -> (_,_,_ -> void)\n\nsimplified_dir(dir)= List.head(List.rev(String.explode(\"\/\",dir)))\n\nAutocommand(config) = {{\n  target= \"dynamic.exe\"\n  kill_id = Random.string(16) \/\/ Workaround\n  Conf = {{\n    commands = [\"opa {config.opa_opt} --opx-dir _build --conf opa.conf --conf-opa-files -o {target}\"] ++ if config.launch then [\"cp .\/{target} .\/{kill_id}_{target} && .\/{kill_id}_{target} -p 2001\"] else []\n  }}\n  Makefile = {{\n    commands = [\"make\", ] ++ if config.launch then  [\"make run\"] else []\n  }}\n}}\n\n\nmain(config)=\n  \/\/ Notifier\n  notify_title = \"{simplified_dir(config.directory)}\"\n  notify_title_error = \"FAILURE : {notify_title}\"\n  notify_title_fine = \"Launched : {notify_title}\"\n  notify = notify(config.notifier)\n  \/\/ Avoidance rule\n  avoid_file = avoid_file(config)\n  Autocommand = Autocommand(config)\n  \/\/ Remember last lauch to be able to kill it\n  previous_last = MutexRef.create(none)\n  may_kill_previous_last() = MutexRef.update(previous_last){ opt ->\n    do debug(\"SHOULD KILL {opt}\")\n    do Option.iter(p -> do debug(\"TRY KILL {p.p.pid}\") do p.p.kill() do Reference.set(p.killed, true) debug(\"KILLED {p.p.pid}\"),opt)\n      \/\/ An ugly work-around, need proper process group here\n      do ignore(System.shell_exec(\"ps x -o pid,cmd | grep {Autocommand.kill_id} | cut -d ' ' -f 1 | xargs kill\",\"\").result())\n      none\n    }\n  register_previous_last(p) = MutexRef.update(previous_last)(\n    | {none} -> some(p)\n    | {some=prev} -> do debug(\"{prev.p.pid} has not been killed\") do prev.p.kill() some(p)\n  )\n  \/\/ do System.at_exit( -> do may_kill_previous_last(); \/*do ignore(System.shell_exec(\"cd {config.directory} && rm {Autocommand.kill_id}_*\",\"\") );*\/ void)\n  set = Fold.list( collect_files(avoid_file,[],config.directory), StringSet.empty ){\n\t\tpath, set -> StringSet.add(String.concat(\"\/\", path), set )\n  }\n  \/\/ Standard Opa project detection\n  has_file(file) =  StringSet.mem(String.concat(\"\/\",[config.directory,file]), set)\n  has_conf = has_file(\"opa.conf\")\n  has_makefile = has_file(\"Makefile\")\n  commands() = (\n     if config.command!=[] then config.command else\n     if has_conf           then Autocommand.Conf.commands else\n     if has_makefile       then Autocommand.Makefile.commands else []\n  )\n  do if commands()==[] then error(\"Don't know what to do please specify --command or create opa.conf or create a Makefile\")\n  command() =\n    do print(\"Change detected: \")\n    commands = commands()\n    len = List.length(commands)\n    is_last = (_ == len-1)\n    fine = (List.foldi(_,commands,true)){ i, command, continue ->\n    if not(continue) then false else\n      command = \"cd {config.directory} && {command}\"\n      do debug(\"COMMAND {command}\")\n      message = if config.command!=[] then \"command {i}\"\n                else match i\n                     0 -> \"compilation\"\n                     1 -> \"run\"\n                     _ -> \"command {i}\"\n                     end\n      do print(message)\n      killed = Reference.create(false)\n      process_outcome(o) = match o.error\n        {none} -> do print(\" OK, \"); continue\n        {some=_} -> if Reference.get(killed) then true else do println(\" FAILURE <<\\n{o.stderr}\\n>>\"); do notify(notify_title_error,o.stderr,false); false\n        end\n      async_launch_command = len>1 && is_last(i)\n      do if async_launch_command then may_kill_previous_last()\n      ~{p result} = System.shell_exec(command, \"\")\n      do debug(\"LAUNCHED\")\n      do debug(\"LAUNCHED {p.pid}\")\n      if async_launch_command then\n        do register_previous_last(~{p killed})\n        do Scheduler.push{ ->\n          do debug(\"WAIT {p.pid}\")\n          do ignore(process_outcome(result()))\n          debug(\"ASYNC LAUNCH FINISHED {p.pid}\")\n        }\n        true\n      else\n        do debug(\"WAIT {message}\")\n        r = process_outcome(result())\n        do debug(\"DONE {message}\")\n        r\n    }\n    if fine then do println(\" OK\") notify(notify_title_fine,\"\",true) else debug(\"NOT FINE\")\n    job_on_files_changes(avoid_file,set,\"_name\", command)\n\n\n","old_contents":"\/** opa-dynamic\n  * Monitor a directory conataining a project, recompiles it and relaunch it when needed\n  *\/\n\nimport stdlib.io.file\nimport stdlib.core.concurrency\nimport stdlib.system\n\ndo Scheduler.sleep(1, -> main(CommandLine.filter(CommandLineConf)) ) \/\/ Workaround\n\n@expand\ndebug = #<Ifstatic:DEBUG> s -> println(\"[DEBUG] {s}\") #<Else> _ -> void #<End>\n\ntype config.notifier = {notify_send} \/ {terminal_notifier} \/ {none}\n\n\/** Configuration for one project directory *\/\ntype config = {\n  command : list(string) \/\/ list of command , inferred if empty\n  directory : string     \/\/ project directory\n  avoid_dir : list(string)\n  avoid_ext : list(string)\n  avoid_prefix : list(string)\n  launch : bool\n  opa_opt : string\n  notifier : config.notifier\n}\n\n\n\/\/ Add browser support, launch and reload\nDConfig = {{\n  \/** Control grouping delay of sequential events *\/\n  grouping_delay = Duration.ms(300)\n  config = {\n    command = [] \/\/ empty => inferred\n    directory=\".\"\n    avoid_dir=[\".git\", \"_build\", \"_tracks\",\"node_modules\"]\n    avoid_ext=[\".opx\", \"_depends\"\/*opa*\/, \".log\", \".bak\", \".old\", \"~\"\/*emacs*\/, \".exe\"]\n    avoid_prefix =[ \".#\"\/*emacs*\/, \"#\" ]\n    launch = true\n    opa_opt = \"\"\n    notifier = {notify_send}\n  }\n}}\n\nCommandLineConf = {{\n  title = \"OpaDyn\"\n  init = DConfig.config\n  anonymous = []\n  parsers = [\n    CommandLine.string([\"--src-dir\"],\"Directory to auto-build\",\"directory(={init.directory})\"){\n     s,c -> {c with directory = s}\n    },\n    CommandLine.string([\"--avoid-dir\"],\"Directory to avoid\",\"directory(={init.avoid_dir})\"){\n     s,c -> {c with avoid_dir=[s|c.avoid_dir]}\n    },\n    CommandLine.string([\"--avoid-ext\"],\"Extension to avoid\",\"extension(={init.avoid_ext})\"){\n     s,c -> {c with avoid_ext=[s|c.avoid_ext]}\n    },\n    CommandLine.string([\"--command\"],\"Command to build\",\"command(=inferred)\"){\n     s,c -> {c with command = [s|c.command]}\n    },\n    CommandLine.string([\"--opa-opt\"],\"Option for opa command\",\"opt\"){\n     s,c -> {c with opa_opt = \"{c.opa_opt} {s}\"}\n    },\n    CommandLine.switch([\"--no-launch\"],\"Last command is not a launch command\"){\n     c -> {c with launch = false}\n    },\n    cases = [\n      (\"no\", {none}),\n      (\"linux\", {notify_send}),\n      (\"mac\"  , {terminal_notifier}),\n      (\"windows\", {none})\n    ]\n    CommandLine.case([\"--notifier\"],cases,\n     \"Force platform notifier\", String.concat(\" or \",List.map(_.f1, cases))\n    ){\n     n,c -> {c with notifier = n}\n    },\n  ]\n}} : CommandLine.family(config)\n\navoid_file(config)(file) =\n      List.mem(file,config.avoid_dir)\n  ||  List.exists(String.has_suffix(_,file), config.avoid_ext)\n  ||  List.exists(String.has_prefix(_,file), config.avoid_prefix)\n\n\n\ntype command_queue_state = MutexRef.t({\n  need : bool\n  in_progress : option(Date.date) \/\/ Some => in progress\n})\n\ntype job = {\n  name : string\n  command : -> void\n}\n\n\/** projecting a function to an exclusive access queue,\n    only one function can be executed at the same time,\n    new execution demand during a previous exectution will be merge into one exectution\n    new execution demand that are very near in time are merged\n*\/\nexclusive_queue(command: -> void) = (\n\n  stateR = MutexRef.create({need=false progress=none})\n  finished() = do debug(\"XQUEUE FINISHED\") MutexRef.update(stateR){ state -> {state with progress=none} }\n  start() = do debug(\"XQUEUE START\") MutexRef.update(stateR){ state -> {state with progress=some(Date.now()) need=false} }\n  consume_need()  = MutexRef.exclusive(stateR){ ->\n    state = MutexRef.get(stateR)\n    do debug(\"XQUEUE CONSUME NEED {state}\")\n    do MutexRef.set(stateR, {MutexRef.get(stateR) with need=false})\n    state.need\n  }\n  rec proceed(id) =\n    do debug(\"TRY PROCEED {id}\")\n    if MutexRef.get(stateR).progress!=none then debug(\"STILL IN PROGRESS\") else\n    do debug(\"PROCEED\")\n    do start()\n    do command()\n    do finished()\n    if consume_need() then proceed(id)\n    else debug(\"XQUEUE END LOOP, WAITING\")\n\n  -> MutexRef.update(stateR){ state ->\n    \/\/ any transition to need=true without any in_progress work starts a new proceed_loop\n    if state.need then do debug(\"STILL IN NEED\") state else\n    need = match state.progress\n      {none} -> true\n      {some=t} ->\n        dt = Date.between(t,Date.now())\n        do debug(\"DT = {Duration.in_milliseconds(dt)} ms\")\n        dt > DConfig.grouping_delay \/\/ if far enough after starting progress\n      end\n    do if need then Scheduler.push( -> proceed(Random.string(4)) )\n    do debug(\"NEED = {need}\")\n    {state with ~need}\n  }\n\n)\n\n\/**\n  * Listening a set of file, and triggering command on any change that is not about avoided files.\n  *\/\njob_on_files_changes(avoid_file,files,_name,command)=\n  command=exclusive_queue(command)\n  handler_map = MutexRef.create(StringMap.empty)\n  _remove_file(file) = MutexRef.update(handler_map){\n    map -> StringMap.remove(file, map)\n  }\n  command_if_not_avoid(file) = if not(avoid_file(file)) then command() else debug(\"AVOIDED {file}\")\n  add_file(file) =\n    do debug(\"Listen {file} \")\n    is_directory = File.is_directory(file)\n    handler = File.onchange(file,none){file1, event ->\n      do  debug(\"EVENT[{file} {file1}] = {Debug.dump(event)}\")\n      match event\n      {change=file2} ->\n        do if is_directory then debug(\"file-change\") else debug(\"mod-or-delete\")\n        command_if_not_avoid(file2)\n      {rename=file2} ->\n        do if is_directory then debug(\"new-or-delete\") \/\/ TODO : HANDLE NEW FILE LISTENING HERE\n                           else debug(\"delete\")\n        command_if_not_avoid(file2)\n    }\n    do MutexRef.update(handler_map){ map ->\n      StringMap.add(file, handler, map)\n    }\n    debug(\"OK\")\n    do StringSet.iter(add_file,files)\n    command()\n\n\/** Collect recusively all path in a directory using an avoidance rule *\/\ncollect_files(avoid_file, rpath,dir) =\n  path = List.rev([dir|rpath])\n  pathstr = String.concat(\"\/\", path)\n  v = File.readdir(pathstr):outcome(llarray(string), string)\n  if avoid_file(dir) then []\n  else match v\n  {success=array} ->\n    do debug(\"DIR={pathstr}\")\n    subs = LowLevelArray.mapi(array){ _i,v ->\n      collect_files(avoid_file,[dir|rpath],v)\n    } |> LowLevelArray.fold(List.cons,_,List.empty) |> List.flatten\n    [path|subs]\n  {failure=_} -> [path]\n\n\nkeep_n_first_lines(n,s) = String.explode(\"\\n\", s) |> List.take(n,_) |> String.concat(\"\\n\",_)\n\/\/keep_n_last_lines(n,s)  = String.explode(\"\\n\", s) |> List.rev |> List.take(n,_) |> List.rev |> String.concat(\"\\n\",_)\n\nsummary_error(s) =\n  \/\/ TODO position could be simplified\n  errors = String.explode(\"Error:\", s)\n  nb_errors = List.length(errors)\n  if nb_errors > 0 then \"Error:\"^keep_n_first_lines(8, List.head(List.rev(errors))) else s\n\n\/\/ 8 lines max\nnotify_send(title,mess,positive) =\n  clear(s) = s |> String.replace(\"\\\"\", \" \", _) |> String.replace(\"\\'\", \" \", _)\n  icon = if positive then \"-i dialog-ok-apply\" else \"-i dialog-warning\"\n  mess = summary_error(mess)\n  do debug(\"NOTIFY {mess}\")\n  match System.shell_exec(\"notify-send {icon} -a Opa \\\"{clear(title)}\\\" \\\"{clear(mess)}\\\"\",\"\").result()\n  {error={some=err} ...} -> debug(\"Notify failure : {err}\")\n  ~{stderr stdout ...} -> debug(\"Notify ok : <<{stdout}{stderr}>>\")\n\nnotify =\n| {notify_send} -> notify_send\n| {terminal_notifier} | {none} -> (_,_,_ -> void)\n\nsimplified_dir(dir)= List.head(List.rev(String.explode(\"\/\",dir)))\n\nAutocommand(config) = {{\n  target= \"dynamic.exe\"\n  kill_id = Random.string(16) \/\/ Workaround\n  Conf = {{\n    commands = [\"opa {config.opa_opt} --opx-dir _build --conf opa.conf --conf-opa-files -o {target}\"] ++ if config.launch then [\"cp .\/{target} .\/{kill_id}_{target} && .\/{kill_id}_{target} -p 2001\"] else []\n  }}\n  Makefile = {{\n    commands = [\"make\", ] ++ if config.launch then  [\"make run\"] else []\n  }}\n}}\n\n\nmain(config)=\n  \/\/ Notifier\n  notify_title = \"{simplified_dir(config.directory)}\"\n  notify_title_error = \"FAILURE : {notify_title}\"\n  notify_title_fine = \"Launched : {notify_title}\"\n  notify = notify(config.notifier)\n  \/\/ Avoidance rule\n  avoid_file = avoid_file(config)\n  Autocommand = Autocommand(config)\n  \/\/ Remember last lauch to be able to kill it\n  previous_last = MutexRef.create(none)\n  may_kill_previous_last() = MutexRef.update(previous_last){ opt ->\n    do debug(\"SHOULD KILL {opt}\")\n    do Option.iter(p -> do debug(\"TRY KILL {p.p.pid}\") do p.p.kill() do Reference.set(p.killed, true) debug(\"KILLED {p.p.pid}\"),opt)\n      \/\/ An ugly work-around, need proper process group here\n      do ignore(System.shell_exec(\"ps x -o pid,cmd | grep {Autocommand.kill_id} | cut -d ' ' -f 1 | xargs kill\",\"\").result())\n      none\n    }\n  register_previous_last(p) = MutexRef.update(previous_last)(\n    | {none} -> some(p)\n    | {some=prev} -> do debug(\"{prev.p.pid} has not been killed\") do prev.p.kill() some(p)\n  )\n  \/\/ do System.at_exit( -> do may_kill_previous_last(); \/*do ignore(System.shell_exec(\"cd {config.directory} && rm {Autocommand.kill_id}_*\",\"\") );*\/ void)\n  set = Fold.list( collect_files(avoid_file,[],config.directory), StringSet.empty ){\n\t\tpath, set -> StringSet.add(String.concat(\"\/\", path), set )\n  }\n  \/\/ Standard Opa project detection\n  has_file(file) =  StringSet.mem(String.concat(\"\/\",[config.directory,file]), set)\n  has_conf = has_file(\"opa.conf\")\n  has_makefile = has_file(\"Makefile\")\n  commands() = (\n     if config.command!=[] then config.command else\n     if has_conf           then Autocommand.Conf.commands else\n     if has_makefile       then Autocommand.Makefile.commands else []\n  )\n  do if commands()==[] then error(\"Don't know what to do please specify --command or create opa.conf or create a Makefile\")\n  command() =\n    do print(\"Change detected: \")\n    commands = commands()\n    len = List.length(commands)\n    is_last = (_ == len-1)\n    fine = (List.foldi(_,commands,true)){ i, command, continue ->\n    if not(continue) then false else\n      command = \"cd {config.directory} && {command}\"\n      do debug(\"COMMAND {command}\")\n      message = if config.command!=[] then \"command {i}\"\n                else match i\n                     0 -> \"compilation\"\n                     1 -> \"run\"\n                     _ -> \"command {i}\"\n                     end\n      do print(message)\n      killed = Reference.create(false)\n      process_outcome(o) = match o.error\n        {none} -> do print(\" OK, \"); continue\n        {some=_} -> if Reference.get(killed) then true else do println(\" FAILURE <<\\n{o.stderr}\\n>>\"); do notify(notify_title_error,o.stderr,false); false\n        end\n      async_launch_command = len>1 && is_last(i)\n      do if async_launch_command then may_kill_previous_last()\n      ~{p result} = System.shell_exec(command, \"\")\n      do debug(\"LAUNCHED\")\n      do debug(\"LAUNCHED {p.pid}\")\n      if async_launch_command then\n        do register_previous_last(~{p killed})\n        do Scheduler.push{ ->\n          do debug(\"WAIT {p.pid}\")\n          do ignore(process_outcome(result()))\n          debug(\"ASYNC LAUNCH FINISHED {p.pid}\")\n        }\n        true\n      else\n        do debug(\"WAIT {message}\")\n        r = process_outcome(result())\n        do debug(\"DONE {message}\")\n        r\n    }\n    if fine then do println(\" OK\") notify(notify_title_fine,\"\",true) else debug(\"NOT FINE\")\n    job_on_files_changes(avoid_file,set,\"_name\", command)\n\n\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"6fe597bbdb1370c29f2966bdeb0d878edaa66a1f","subject":"traiting pending mousup","message":"traiting pending mousup\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3);\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode, get_pending_mouseup_and_clean) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do \n      todo : list = get_pending_mouseup_and_clean();\n      f((bad_pos, cont)) : void = \n        g(last_coord_fixer) = cont(last_coord_fixer(bad_pos));\n        Option.iter(g, eng.last_coord_fixer);\n      List.iter(f, todo);\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    pending_mouseup = Mutable.make(List.empty);\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      handler_mouseup(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(x) = void;\n        pending_mouseup.set(List.cons((gl_pos, cont), pending_mouseup.get()));\n      _ = Dom.bind(canvas_sel, { mouseup }, handler_mouseup);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do \n      get_pending_mouseup_and_clean() = \n        tmp = List.rev(pending_mouseup.get());\n        do pending_mouseup.set(List.empty);\n        tmp;\n      drawScene_and_register(eng, get_scene, mode.get, get_pending_mouseup_and_clean);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n  last_coord_fixer: option(Dom.dimensions -> vec3)\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    tmp_x = Float.of_int(viewport.w \/ 40)\n    tmp_y = Float.of_int(viewport.h \/ 40)\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-tmp_x, tmp_x, -tmp_y, tmp_y, -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, get_scene : (->Scene.Client.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng:engine) =\n    gl = eng.context;\n    (eng, scene) = \n      f(is_selected, p) = \n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    eng = \n      match get_mode() with\n      | {pick=pos; ~cont} -> (\n        match which_box(viewbox, pos) with\n        | {out} -> eng\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          \/\/do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          g(pos : Dom.dimensions) : vec3 =\n            x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n            y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n            vstart = vec4.from_public((x, y, 1.0, 1.0));\n            vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n            do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n            vpreres = vec4.to_public(vtmp);\n            vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n            do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n            vres;\n          pos_result = g(pos);\n          possible_target =\n            pickedColor = \n              data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n              do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n              match Webgl.Uint8Array.to_int_list(data) with\n              | [r, g, b, _] -> (r, g, b)\n              | _ -> error(\"Picking failure\")\n              end ;\n            do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n            f = \n              (r, g, b) = pickedColor;\n              (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n            Option.map((u -> u.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          _ = cont({ mousedown; pos=this_viewbox.clear_near_far(pos_result); ~possible_target; coord_fixer=Option.some(g) });\n          { eng with last_coord_fixer=Option.some(g) }\n        end)\n      | {normal} ->\n        do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n        _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n        _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n        eng\n      end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ =\n      recompute_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n        gl_pos;\n      handler_mousedown(e) =\n        gl_pos = recompute_pos(e.mouse_position_on_page);\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont}) else void;\n      _ = Dom.bind(canvas_sel, { mousedown }, handler_mousedown);\n      void;\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel;\n        last_coord_fixer=Option.none });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8c079e2907310e96ee7c44902ed919647466ce2e","subject":"renaming a function","message":"renaming a function\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene_and_register(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(eng, squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene(eng, squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"35b50a2449e4e49531d04d71e7decfefdb49c68e","subject":"shared scene start to support new client","message":"shared scene start to support new client\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    f(modsha) = \n      { state with files=StringMap.add(address, f(modsha), state.files) };\n    Option.switch(f, state, find_file(state, address));\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = `Central.Modelers`.get_file(state, scene_url);\n      base = `Modeler.Shared`.add_client(base, sync_channel);\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(Central.Modelers.sync.message)\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) = \n    { modsha with clients=List.cons(client, modsha.client) };\n\n  apply_patch(modsha, patch) = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  update_file(state, address, f) : Central.Modelers.state =\n    f(modsha) = \n      { state with files=StringMap.add(address, f(modsha), state.files) };\n    Option.switch(f, state, find_file(state, address));\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      base = match `Central.Modelers`.find_file(state, scene_url) with\n        | {some=hit} -> hit\n        | {none} ->\n          scene = Scene.empty(SHF, state.my_id);\n          scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n          scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n          { `Modeler.Shared`.empty(state.my_id, scene_url) with ~scene }\n        end;\n      do Session.send(sync_channel, { load=base.scene });\n      { unchanged };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"1b9a24dc3dd5572db6fed113ca609fa44310ee88","subject":"removing comments","message":"removing comments\n","repos":"MLstate\/webgldemo","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Log.debug(\"normalMatrix\", mat3.str(normalMatrix));\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Log.debug(\"mvMatrix\", mat4.str(mvMatrix));\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void =\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> void\/\/error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","old_contents":"@private id_work_area = \"work_area\" ;\n@private id_canvas_area = \"canvas_area\" ;\n\ndefault_css = css \n#{id_canvas_area} {\n   background-color: #D000D0;\n}\n;\n\ncss = [ default_css ] ;\n\nwidth = 500;\nheight = 500;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs); \/\/truc_fs(gl);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs); \/\/truc_vs(gl); \n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\/* TODO : Float32Array *\/\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Log.debug(\"normalMatrix\", mat3.str(normalMatrix));\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  \/\/do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, Webgl.Float32Array.from_float_list(mat4.to_list(pMatrix)));\n  \/\/Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, Webgl.Float32Array.from_float_list(mat4.to_list(mvMatrix)))\n  \/\/plop(gl, shaderProgram.pMatrixUniform, pMatrix, shaderProgram.mvMatrixUniform, mvMatrix, false)\n  \/\/do my_uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, pMatrix);\n  \/\/my_uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, mvMatrix)\n  void\n;\n\nsetup_boxes() = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(width);\n  (h_u, h_d) = compute_left_right(height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(gl, viewport, eye, up, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  \/\/do Log.debug(\"drawScene\", \".\"); \n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = \n    f = vec3.from_public ;\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(width) \/ float_of_int(height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(f(eye), f((0.0, 0.0, 0.0)), f(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  do Log.debug(\"pMatrix\", mat4.str(pMatrix));\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    \/\/do mat4.translate(tmp_mvMatrix, vec3.from_public((-1.5, 0.0, -7.0)), tmp_mvMatrix);\n    \/\/do mat4.translate(tmp_mvMatrix, vec3.from_public((3.0, 0.0, .0)), tmp_mvMatrix);\n    tmp_mvMatrix;\n  do Log.debug(\"mvMatrix\", mat4.str(mvMatrix));\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix);\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n  \/\/do Webgl.drawArrays(gl, Webgl.TRIANGLE_STRIP(gl), 0, squareVertexPositionBuffer.numItems);\n  \/\/do RequestAnimationFrame.request((_ -> drawScene_for_a_viewport(gl, viewport, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n  void\n;\n\ndrawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n  viewbox = setup_boxes() ;\n  rec aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) =\n    do Webgl.clear(gl, Webgl.COLOR_BUFFER_BIT(gl)); \/\/ TODO: | gl.DEPTH_BUFFER_BIT);\n    do drawScene_for_a_viewport(gl, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do drawScene_for_a_viewport(gl, viewbox._3D, (15.0, 10.0, 15.0), (0.0, 1.0, 0.0), shaderProgram, squareVertexPositionBuffer, repcoords);\n    do RequestAnimationFrame.request((_ -> aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords)), #{id_canvas_area});\n    void\n    ;\n  aux(gl, shaderProgram, squareVertexPositionBuffer, repcoords) \n;\n\n  initGL(canvas) : void = \n    do jlog(\"got some context 55602\");\n    match Webgl.getContext(canvas, \"experimental-webgl\") with\n    | { some=gl } ->\n      do jlog(\"got some context\");\n      squareVertexPositionBuffer = initBuffers(gl);\n      repcoords = { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) };\n      shaderProgram = initShaders(gl);\n      \/\/Clear screen and make everything black\n      do Webgl.clearColor(gl, 0.0, 0.0, 0.0, 1.0);\n      \/\/we should do depth testing so that things drawn behind other \n      \/\/things should be hidden by the things in front of them). \n      do Webgl.clearDepth(gl, 1.0);\n      do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n      do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n      do drawScene(gl, shaderProgram, squareVertexPositionBuffer, repcoords);\n      void\n    | { none } -> void\/\/error(\"no context found\")\n    end ;\n\nserver_start_static_page() =\n\n  <div>\n    <h1 onready={_ -> do Dom.transform([#{id_work_area} +<- <>tralalilalalala<\/>]); void}>Welcome to this demo<\/h1>\n    <canvas width={width} height={height} id=#{id_canvas_area} onready={_ -> initGL(Dom.of_selection(#{id_canvas_area}))}\/>                       \n    <div id=#{id_work_area} \/>\n  <\/div> ;\n\nurls =\n  parser\n  | (.*) ->\n    _ = %%WebglPlugin.getContext%% ;\n    html(\"Demo page {Date.to_string(Date.now())}\", server_start_static_page())\n  end ;\n\n\nserver = simple_server(urls) ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"5ba3227db54b207f54be463265a7a64a426d8047","subject":"Detect logout with timeout","message":"Detect logout with timeout\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype user = string\ntype users_action = {add : user} \/ {remove : user} \/ { clean } \/ {ping : user}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\ntype msg = {message : message} \/ {users : stringmap(Date.date)}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(msg)\n\nmanage_users(user_list : stringmap(Date.date), action : users_action) =\n  clean(key, value, acc) =\n    time = Duration.in_seconds(Duration.between(value, Date.now()))\n    if time > 20. then \n       do broadcast({system}, \"leave\", \"{key} has left the room (timeout)\")\n       acc\n    else\n       Map.add(key, value, acc)\n       \n\n  match action with\n   | {add = u} ->       newmap = Map.add(u, Date.now(),user_list)\n                        do broadcast({system}, \"join\", \"{u} is connected to the room\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {remove = u} ->    newmap = Map.remove(u, user_list)\n                        do broadcast({system}, \"leave\", \"{u} has left the room (quit)\")\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {clean} ->         do Debug.jlog(\"clean\")\n                        newmap = Map.fold(clean, user_list, Map.empty)\n                        do Network.broadcast({users = newmap}, room)\n                        {set = newmap}\n\n   | {ping = u} ->      temp = Map.remove(u, user_list)\n                        {set = Map.add(u, Date.now(), temp)}\n\nusers = Session.cloud(\"users\", Map.empty, manage_users)\n\ndo Scheduler.timer(10000, ( -> Session.send(users, {clean})))\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(msg: msg) =  \ndo update_stats(mem)\nmatch msg with\n | {message = x} ->\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n | ~{users} -> list = Map.fold((elt, _, acc -> <>{acc}<li>{elt}<\/li><\/>), users, <><\/>)\n               Dom.transform([#user_list <- <ul>{list}<\/ul>])\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\n@client\nping(fun)=\n  Scheduler.timer(15000, fun)\n\nlaunch(author:string) =\n  init_client() =\n    do Session.send(users, {add=author})\n    do ping( -> Session.send(users, {ping=author}))\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter( (a -> user_update(get_memory_usage()\/(1024*1024))({message = a})) , history)\n    Network.add_callback(user_update(get_memory_usage()\/(1024*1024)), room)\n   logout() =\n     do Session.send(users, {remove=author})\n     Client.goto(\"\/\")\n   do_broadcast = broadcast({author=author}, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>, \n     <div id=#conversation onready={_ -> init_client()}\/>    \n     <div id=#user_list \/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload() =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  Dom.transform([#main <- launch(author)])\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load()}\/>\n       <span class=\"button\" onclick={_ -> load()}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype user = string\ntype users_action = {add : user} \/ {remove : user} \/ { broadcast } \/ {ping}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\ntype msg = {message : message} \/ {users : list(user)}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(msg)\n\nmanage_users(user_list : list(user), action : users_action) =\n  ping()=\n    do Debug.jlog(\"ping not implemented yet\")\n    {unchanged}\n  match action with\n   | {add = u} ->       do broadcast({system}, \"join\", \"{u} is connected to the room\")\n                        {set = List.cons(u, user_list)}\n\n   | {remove = u} ->    do broadcast({system}, \"leave\", \"{u} has left the room\")\n                        {set = List.remove(u, user_list)}\n\n   | {broadcast} ->     do Network.broadcast({users = user_list}, room)\n                        {unchanged}\n\n   | {ping} ->          ping()\n\nusers = Session.cloud(\"users\", List.empty, manage_users)\n\n\/\/ Fix-me : to be improved\ndo Scheduler.timer(1000, ( -> Session.send(users, {broadcast})))\n\nlaunch_date = Date.now()\n\nget_memory_usage = %%c_binding.get_memory_usage%%\n\nupdate_stats(mem) =\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  do Dom.transform([#uptime <- <>Uptime: {Date.to_string_time_only(uptime)}<\/>])\n  do Dom.transform([#memory <- <>Memory: {mem} Mo<\/>])\n  void\n\n@client\nuser_update(mem:int)(msg: msg) =\nmatch msg with\n | {message = x} ->\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  do update_stats(mem)\n  void\n | ~{users} -> list = List.fold((elt, acc -> <>{acc}<li>{elt}<\/li><\/>), users, <><\/>)\n               Dom.transform([#user_list <- <ul>{list}<\/ul>])\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  Network.broadcast({message = message}, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:string) =\n  init_client() =\n    do Session.send(users, {add=author})\n    history_list = IntMap.To.val_list(\/history)\n    len = List.length(history_list)\n    history = List.drop(len-20, history_list)\n    \/\/ FIXME: optimize this...\n    do List.iter( (a -> user_update(get_memory_usage()\/(1024*1024))({message = a})) , history)\n    Network.add_callback(user_update(get_memory_usage()\/(1024*1024)), room)\n   logout() =\n     do Session.send(users, {remove=author})\n     Client.goto(\"\/\")\n   do_broadcast = broadcast({author=author}, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#user_list \/>\n     <div id=#stats><span id=#users\/><span id=#uptime\/><span id=#memory\/><\/div>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload() =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  Dom.transform([#main <- launch(author)])\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load()}\/>\n       <span class=\"button\" onclick={_ -> load()}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"71584abb78e06a6a834ce581cd213253b25a159b","subject":"uptime fix","message":"uptime fix\n","repos":"MLstate\/OpaChat,Aqua-Ye\/OpaChat,MLstate\/MindChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime_duration = Date.between(System.gmt_launch_date, Date.gmt_now())\n  uptime = Date.of_duration(uptime_duration)\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"51f37cb38dcb6afea7a2691d49c0ef15e7d22c62","subject":"fix: history was displayed in wrong order","message":"fix: history was displayed in wrong order\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.rev(List.take(20, \/history))\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype message = { author: string \/**The name of the author (arbitrary string)*\/\n               ; text: string  \/**Content entered by the user*\/\n               ; date: Date.date\n               }\n\ndb \/history : list(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\nuser_update(x: message) =\n  line = <div class=\"line\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            <span class=\"user\">{x.author}<\/span>\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line ])\n  Dom.scroll_to_bottom(#conversation)\n\nbroadcast(author, text) =\n   message = {~author ~text date=Date.now()}\n   do Network.broadcast(message, room)\n   do \/history <- [message | \/history]\n   Dom.clear_value(#entry)\n\nlaunch(author) =\n   init_client() =\n     history = List.take(20, \/history)\n     do List.iter(user_update, history)\n     Network.add_callback(user_update, room)\n   send_message() =\n     broadcast(author, Dom.get_value(#entry))\n   logout() =\n     do broadcast(\"System\", \"{author} has left the room\")\n     Dom.transform([#main <- <a class=\"button\" href=\"\/\">Reconnect<\/a>])\n   <div id=#header><div id=#logo><\/div>\n     <div class=\"button\" onclick={_ -> logout()}>Logout<\/div>\n   <\/div>\n   <div id=#conversation onready={_ -> init_client()}><\/div>\n   <input id=#entry  onnewline={_ -> send_message()}\/>\n   <div class=\"button\" onclick={_ -> send_message()}>Send<\/div>\n\nstart() =\n   go(_) = \n     author = Dom.get_value(#author)\n     do Dom.transform([#main <- launch(author)])\n     broadcast(\"System\", \"{author} is connected to the room\")\n   <div id=#main>\n   <div id=#header><div id=#logo><\/div>Choose your name:<\/div>\n   <input id=#author onnewline={go}\/>\n   <div class=\"button\" onclick={go}>Launch<\/div>\n   <\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/css.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"03d45756c0e7cd1764337064aadf714d5ebf324a","subject":"some cleanup","message":"some cleanup\n","repos":"Aqua-Ye\/OpaChat,MLstate\/MindChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function send_message(user, _) {\n  broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message({~user}, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2012 Frederic Ye\n    Copyright \u00a9 2010-2011 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.system\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { user user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\nprivate launch_date = Date.now()\n\n\/** Page **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\nserver function mem() {\n  System.get_memory_usage()\/(1024*1024)\n}\n\nserver function compute_stats() {\n  uptime_duration = Date.between(launch_date, Date.now())\n  uptime = Date.of_duration(uptime_duration)\n  uptime = Date.shift_backward(uptime, Date.to_duration(Date.milliseconds(3600000))) \/\/ 1 hour shift\n  (uptime, mem())\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Date.to_string_time_only(uptime)}<\/>\n  #memory = <>Memory: {mem} Mo<\/>\n}\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user.name}<\/span>\n  }\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  update_stats(stats)\n  List.iter(function(message) {\n    date = Date.to_formatted_string(Date.default_printer, message.date)\n    time = Date.to_string_time_only(message.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(message.source) }\n              <span class=\"message\">{message.text}<\/span>\n           <\/div>\n    #conversation =+ line\n  }, messages)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  update_stats(stats)\n  List.iter(function(media) {\n    date = Date.to_formatted_string(Date.default_printer, media.date)\n    time = Date.to_string_time_only(media.date)\n    media_parser = parser {\n      case \"image\/\" .*: {image}\n      case \"audio\/\" .*: {audio}\n      case \"video\/\" .*: {video}\n    }\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              { source_to_html(media.source) }\n              { match (Parser.try_parse(media_parser, media.mimetype)) {\n                case {some:{image}}:\n                  <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n                case {some:{audio}}:\n                  <audio src=\"{media.src}\"\n                         controls=\"controls\"\n                         type=\"{media.mimetype}\"\n                         preload=\"auto\">\n                    Your browser does not support the audio tag!\n                  <\/audio>\n                case {some:{video}}:\n                  <video src=\"{media.src}\"\n                         controls=\"controls\"\n                         preload=\"auto\"\n                         type=\"{media.name}\">\n                    Your browser does not support the video tag!\n                  <\/video>\n                default:\n                  <span class=\"media {media.mimetype}\"> is sharing a file :\n                    <a target=\"_blank\" href=\"{media.src}\"\n                       draggable=\"true\"\n                       data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n                  <\/span>\n                } }\n           <\/div>\n    #conversation =+ line\n  }, medias)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nexposed @async function server_broadcast(user, text) {\n  message = {source:user, ~text, date:Date.now()}\n  \/history[?] <- message\n  Network.broadcast({~message}, room)\n}\n\nclient @async function broadcast(user, _) {\n  _ = server_broadcast(user, Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {~user},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nserver @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  send = broadcast({~user}, _)\n  \/\/ #Body is the default body id in Opa\n  #Body = build_page(\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={function(_){init_client(user, client_channel)}}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n  )\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\n      \"\/resources\/css\/bootstrap.min.css\",\n      \"\/resources\/css\/bootstrap-responsive.min.css\",\n      \"\/resources\/css\/style.css\",\n    ] }, \/\/ include CSS in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"977e71989afc836adea74e86213ddfe4d5468458","subject":"fix, we rewrite the position each time","message":"fix, we rewrite the position each time\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object))\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} -> \n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n      do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z -> z.f2.id == p.id), eng.scene) with\n        | { ~some } -> some\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      \/\/do Log.debug(\"Picking\", \"...\");\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {pick});\n      (pMatrix, s) = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {pick});\n      \/\/(pMatrix, s) = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n      x = (float_of_int(pos.x_px - viewbox._ZX.x) \/ float_of_int(viewbox._ZX.w)) * 2.0 - 1.0;\n      y = (float_of_int(pos.y_px - viewbox._ZX.y) \/ float_of_int(viewbox._ZX.h)) * 2.0 - 1.0;\n      mvMatrix = Stack.peek(s) ;\n      do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n      do mat4.inverse(mvMatrix, mvMatrix);\n      v1 = vec4.from_public((x, y, 1.0, 1.0));\n      v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n      do mat4.multiplyVec4(mvMatrix, v1, v2);\n      v22 = vec4.to_public(v2);\n      \/\/v22 = { v22 with f2=0.0 };\n      v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4, v22.f4);\n      data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n      do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n      pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n        | [r, g, b, _] -> (r, g, b)\n        | _ -> error(\"Picking failure\")\n        end ;\n      do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n      \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n      cont({ mousedown; x=v2.f1; z=v2.f3})\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), #{id_canvas_area});\n    void\n    ;\n  aux(eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(#{id_canvas_area});\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cf1c35359331ec69abf9d98cd7cddc38d380aeb9","subject":"* opa\/pfff_logger.opa: comments","message":"* opa\/pfff_logger.opa: comments\n","repos":"Hyunha\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,rpau\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,rpau\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,rpau\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,mutantzombie\/pfff","old_file":"opa\/pfff_logger.opa","new_file":"opa\/pfff_logger.opa","new_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\n * alternatives:\n *  - use RPC (thrift), which would be more typed than abusing urls and\n *    json\n *  - use ocamlnet\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/henry: is this efficient?\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","old_contents":"\/\/****************************************************************************\n\/\/ Prelude\n\/\/****************************************************************************\n\/*\n * My poor's man version of scribe and ODS ... to log the use of the different\n * pfff tools: codemap, codequery, sgrep, spatch, cmf (--fix, --strict\/--bugs,\n * --deadcode, -mv_module), etc\n *\/\n\n\/\/****************************************************************************\n\/\/ The db\n\/\/****************************************************************************\n\ntype command_name = string\ntype command_run = {\n   string unixname,\n   string extra_args,\n   Date.date date\n}\n\n\/\/ command_name -> list(command_run)\ndatabase stringmap(list(command_run)) \/db1\ndatabase \/db1[_] = []\n\ndatabase int \/counter = 0\n\n\/\/****************************************************************************\n\/\/ Stringof\n\/\/****************************************************************************\n\nfunction string_of_command_run(command_run x) {\n  \"{Date.to_debug_string(x.date)}| \" ^\n  \"{x.unixname}|\" ^\n  \"args = {x.extra_args}\"\n}\n\n\/\/****************************************************************************\n\/\/ Query\n\/\/****************************************************************************\n\nfunction view_list() {\n  strmap = \/db1;\n  \/\/henry: is this efficient?\n  keys = Map.To.key_list(strmap);\n  String.concat(\"\\n\", keys)\n}\n\nfunction view(string cmd) {\n  xs = \/db1[cmd];\n  ys = List.rev(List.map(string_of_command_run, xs));\n  String.concat(\"\\n\", ys)\n}\n\n\/\/****************************************************************************\n\/\/ Save\n\/\/****************************************************************************\nfunction save_command_run(command_name cmd, option(RPC.Json.json) json) {\n  match (json) {\n  \/\/henry: why can't write deep pattern? get some \"cyclic type error\" :(\n  case {some: json}:\n    match (json) {\n    case {Record: [(\"unixname\", x), (\"extra_args\", y)]}:\n      match ((x, y)) {\n      case ({String: s1}, {String:s2}):\n        entry = { unixname: s1, extra_args: s2, date: Date.now() }\n        \/counter <- \/counter + 1;\n        \n        \/db1[cmd] <- [ entry | \/db1[cmd] ];\n        {success}\n      default:\n        {bad_request}\n      }\n    default:\n      {bad_request}\n    }\n  default:\n    {bad_request}\n  }\n}\n\n\/\/****************************************************************************\n\/\/ Web visualization\n\/\/****************************************************************************\n\n\/\/****************************************************************************\n\/\/ The router\n\/\/****************************************************************************\n\nfunction start(Uri.relative url) {\n  match (url) {\n  case {path: [] ... }: \n    Resource.page(\"Pfff\", <h1>Pfff<\/h1>)\n\n  case {path: [\"_rest_\", command] ...}:\n    match (HttpRequest.get_method()) {\n    case {some: { post } } :\n     Resource.raw_status(\n       save_command_run(command, HttpRequest.get_json_body())\n     )\n    default:\n      Resource.raw_status({bad_request})\n    }\n\n  case {path: [\"view\", \"counter\"] ...}:\n    Resource.raw_text(\"counter = {\/counter}\\n\")\n  case {path: [\"view\", \"list\"] ...}:\n    Resource.raw_text(view_list())\n  case {path: [\"view\", cmd] ...}:\n    Resource.raw_text(view(cmd))\n\n  default:\n    Resource.raw_status({bad_request})\n   }\n}\n\n\nServer.start(Server.http, [\n   { dispatch: start }\n ]\n)\n","returncode":0,"stderr":"","license":"lgpl-2.1","lang":"Opa"}
{"commit":"f869fd30b5923644a325f4e759c76e18018429f0","subject":"[fix] binary type","message":"[fix] binary type\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/share.opa","new_file":"src\/share.opa","new_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode2(data) |> binary_of_string\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","old_contents":"import stdlib.crypto\nimport file\n\n\/** Sharing module **\/\n\nMAX_SIZE = 5\nDROP_TEXT = \"Drop files here to share !\"\nTOO_BIG_TEXT = \"File too big ! Try a smaller file...\"\n\ntype OpaShare.file = {\n  int id, \/\/ file ID\n  string name, \/\/ file name\n  int size, \/\/ file size\n  binary content, \/\/ file content\n  string mimetype, \/\/ file mimetype\n  Date.date date_uploaded, \/\/ upload date\n  Date.date date_downloaded, \/\/ last download date\n  int count, \/\/ download counter\n  option(string) password, \/\/ file password\n}\n\ndatabase opa_share {\n  OpaShare.file \/files[{id}]\n}\n\nmodule OpaShare {\n\n  client function init(callback) {\n    FilePlugin.hook_file_drop(Dom.select_class(\"dropzone\"), waiting_file_treatment, handle_file_selection(callback));\n    FilePlugin.hook_file_chooser(#files, handle_file_selection(callback));\n  }\n\n  client function waiting_file_treatment() {\n    #share = <img src=\"\/resources\/img\/facebook-loader.gif\" alt=\"Uploading...\"\/>\n    void\n  }\n\n  client function handle_file_selection(callback)(string name, string mimetype, int size, string content) {\n    if (size > MAX_SIZE*1024*1024) {\n      #share = <>{TOO_BIG_TEXT}<\/>\n      void\n    } else {\n      #share = <>{DROP_TEXT}<\/>\n      _ = process_upload(name, mimetype, size, content, callback)\n      void\n    }\n  }\n\n  private function fresh_key() {\n    Date.in_milliseconds(Date.now_gmt())\n  }\n\n  exposed function process_upload(string name, string mimetype, int size, string content, callback) {\n    decoded_content =\n      offset = Option.get(String.index(\"base64,\", content)) + 7\n      data = String.sub(offset, String.length(content)-offset, content)\n      Crypto.Base64.decode2(data)\n    os_file = {\n      id: fresh_key(),\n      ~name,\n      ~size,\n      content: decoded_content,\n      ~mimetype,\n      date_uploaded: Date.now(),\n      date_downloaded: Date.now(),\n      count: 0,\n      password: none,\n    }\n    \/opa_share\/files[id==os_file.id] <- os_file\n    callback(name, mimetype, os_file.id)\n  }\n\n  function html() {\n    <div id=#drop_area class=\"dropzone\">\n      <p id=#share\n         onclick={function(_){Dom.trigger(#files, {click})}}>\n        {DROP_TEXT}\n      <\/p>\n      <input id=#files type=\"file\" multiple=\"multiple\"\/>\n    <\/div>\n  }\n\n  function get(key) {\n    ?\/opa_share\/files[{id:key}]\n  }\n\n}\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"9f939815598017dd1dff058349147e10a65c2c67","subject":"[enhance] auto-scroll really working on all modern browser (including IE)","message":"[enhance] auto-scroll really working on all modern browser (including IE)\n","repos":"MLstate\/MindChat,MLstate\/OpaChat,Aqua-Ye\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  do Dom.set_scroll_top(Dom.select_window(), Dom.get_scrollable_size(#content).y_px)\n  void\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history = List.rev(List.take(20, List.rev(IntMap.To.val_list(\/history))))\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat\n\n    Copyright (C) 2010-2011  MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\nimport stdlib.{date}\n\ntype author = { system } \/ { author : string }\ntype message = {\n  author : author;\n  text : string;\n  date : Date.date;\n  event : string;\n}\n\ngithub_url = \"https:\/\/github.com\/Aqua-Ye\/OpaChat\"\n\ndb \/history : intmap(message)\n\nroom = Network.cloud(\"room\") : Network.network(message)\n\n@client\nuser_update(x: message) =\n  line = <div class=\"line {x.event}\">\n            <span class=\"date\">{Date.to_string_time_only(x.date)}<\/span>\n            { match x.author with\n              | {system} -> <span class=\"system\"\/>\n              | {~author} -> <span class=\"user\">{author}<\/span> }\n            <span class=\"message\">{x.text}<\/span>\n         <\/div>\n  do Dom.transform([#conversation +<- line])\n  Dom.scroll_to_bottom(Dom.select_body())\n\nbroadcast(author, event, text) =\n  message = {~author ~text date=Date.now() ~event}\n  do \/history[?] <- message\n  \/\/do \/history <- [message | \/history]\n  Network.broadcast(message, room)\n\nbuild_page(header, content) =\n  <div id=#header><div id=#logo\/>{header}<\/div>\n  <div id=#content>{content}<\/div>\n\n@client\nsend_message(broadcast) =\n  _ = broadcast(\"\", Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n\nlaunch(author:author) =\n  init_client() =\n    history = List.rev(List.take(20, List.rev(IntMap.To.val_list(\/history))))\n    \/\/ FIXME: optimize this...\n    do List.iter(user_update, history)\n    Network.add_callback(user_update, room)\n   logout() =\n     do broadcast({system}, \"leave\", \"{author} has left the room\")\n     Client.goto(\"\/\")\n   do_broadcast = broadcast(author, _, _)\n   build_page(\n     <a class=\"button github\" href=\"{github_url}\" target=\"_blank\">Fork me on GitHub !<\/a>\n     <span class=\"button\" onclick={_ -> logout()}>Logout<\/span>,\n     <div id=#conversation onready={_ -> init_client()}\/>\n     <div id=#chatbar onready={_ -> Dom.give_focus(#entry)}>\n       <input id=#entry onnewline={_ -> send_message(do_broadcast)}\/>\n       <span class=\"button\" onclick={_ -> send_message(do_broadcast)}>Send<\/span>\n     <\/div>\n   )\n\nload(broadcast) =\n  author = Dom.get_value(#author)\n  do Dom.transform([#main <- <>Loading...<\/>])\n  do Dom.transform([#main <- launch(~{author})])\n  broadcast(\"join\", \"{author} is connected to the room\")\n\nstart() =\n   <div id=#main onready={_ -> Dom.give_focus(#author)}>{\n     build_page(\n       <><\/>,\n       <span>Choose your name: <\/span>\n       <input id=#author onnewline={_ -> load(broadcast({system}, _, _))}\/>\n       <span class=\"button\" onclick={_ -> load(broadcast({system}, _, _))}>Join<\/span>\n     )\n   }<\/div>\n\nserver = Server.one_page_bundle(\"Chat\",\n       [@static_resource_directory(\"resources\")],\n       [\"resources\/style.css\"], start)\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"8d70df308b5f61cd7b6e3451bf0bb058f282db53","subject":"removing a warning","message":"removing a warning\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/objects.opa","new_file":"src\/engine\/objects.opa","new_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do @assert(mod(List.length(vertices), itemSize) == 0);\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n\n  grid(gl, right : int, left : int, by : int, len : float, maper, color) =\n    right = (right \/ by : int) * by;\n    left = (left \/ by : int) * by;\n    state =\n      f(state : 'state) : 'state =\n        tmp = (float_of_int(state.i), len, float_of_int(state.i), -len)\n        { l=List.cons(tmp, state.l); i=state.i + by };\n      g(state) : bool = state.i <= left;\n      for({i=right; l=List.empty}, f, g);\n    l_a = List.flatten(List.map(((a, b, c, d) -> List.append(maper(a, b), maper(c, d)) ), state.l));\n    l_b = List.flatten(List.map(((a, b, c, d) -> List.append(maper(b, a), maper(d, c)) ), state.l));\n    create(gl, List.append(l_a, l_b) : list(float), color);\n\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","old_contents":"\ntype engine.color = ColorFloat.color;\ntype engine.position = vec3;\n\ntype object.pickable = { \n  vertexPositions: Webgl.WebGLBuffer;\n  itemSize: int;\n  numItems: int;\n  vertexNormals: Webgl.WebGLBuffer;\n  vertexIndexs: Webgl.WebGLBuffer;\n  picking_color: engine.color;\n  id: hidden_id;\n  color: engine.color;\n  position: engine.position;\n  is_selected: bool;\n  beginMode: Webgl.GLenum;\n  numIndexs: int\n}\n\ntype object.simple = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  beginMode: Webgl.GLenum;\n  color: engine.color;\n};\n\ntype object = object.pickable;\n\ndisplay_simple(eng, object : object.simple) =\n  rec gl = eng.context and color = object.color and shaderProgram = eng.shaderProgram;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, object.numItems);\n  void ;\n\nLines = {{\n  create(gl, vertices, color) =\n    vertexPositionBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl),\n      Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)),\n      Webgl.STATIC_DRAW(gl));\n    itemSize = 3;\n    do Debug.assert(mod(List.length(vertices), itemSize) == 0, (-> \"Lines.create : the list got an incorrec size\"));\n    { positions=vertexPositionBuffer; ~itemSize; numItems=List.length(vertices) \/ itemSize; beginMode=Webgl.LINES(gl); ~color }\n\n  grid(gl, right : int, left : int, by : int, len : float, maper, color) =\n    right = (right \/ by : int) * by;\n    left = (left \/ by : int) * by;\n    state =\n      f(state : 'state) : 'state =\n        tmp = (float_of_int(state.i), len, float_of_int(state.i), -len)\n        { l=List.cons(tmp, state.l); i=state.i + by };\n      g(state) : bool = state.i <= left;\n      for({i=right; l=List.empty}, f, g);\n    l_a = List.flatten(List.map(((a, b, c, d) -> List.append(maper(a, b), maper(c, d)) ), state.l));\n    l_b = List.flatten(List.map(((a, b, c, d) -> List.append(maper(b, a), maper(d, c)) ), state.l));\n    create(gl, List.append(l_a, l_b) : list(float), color);\n\n}}\n\ndisplay_pickable(eng, pMatrix, mvMatrix, object : object.pickable, overide_color_for_picking) =\n  gl = eng.context; shaderProgram = eng.shaderProgram;\n  color = \n    if overide_color_for_picking then object.picking_color \n    else if object.is_selected then (0.7, 0., 0.) else object.color;\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, color.f1, color.f2, color.f3);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexPositions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), object.vertexNormals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, object.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), object.vertexIndexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(object.position), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, object.beginMode, object.numIndexs, Webgl.UNSIGNED_SHORT(gl), 0);\n  void\n;\n\nCube = {{\n  create(gl, m_object : Scene.objects, is_selected) : object =\n    \/\/define our vertex positions as a list\n    vertices = [\n        \/\/ Front face\n        -1.0, -1.0,  1.0,\n         1.0, -1.0,  1.0,\n         1.0,  1.0,  1.0,\n        -1.0,  1.0,  1.0,\n\n        \/\/ Back face\n        -1.0, -1.0, -1.0,\n        -1.0,  1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0, -1.0, -1.0,\n\n        \/\/ Top face\n        -1.0,  1.0, -1.0,\n        -1.0,  1.0,  1.0,\n         1.0,  1.0,  1.0,\n         1.0,  1.0, -1.0,\n\n        \/\/ Bottom face\n        -1.0, -1.0, -1.0,\n         1.0, -1.0, -1.0,\n         1.0, -1.0,  1.0,\n        -1.0, -1.0,  1.0,\n\n        \/\/ Right face\n         1.0, -1.0, -1.0,\n         1.0,  1.0, -1.0,\n         1.0,  1.0,  1.0,\n         1.0, -1.0,  1.0,\n\n        \/\/ Left face\n        -1.0, -1.0, -1.0,\n        -1.0, -1.0,  1.0,\n        -1.0,  1.0,  1.0,\n        -1.0,  1.0, -1.0,\n      ];\n    vertexNormals = [\n      \/\/ Front\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n       0.0,  0.0,  1.0,\n\n      \/\/ Back\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n       0.0,  0.0, -1.0,\n\n      \/\/ Top\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n       0.0,  1.0,  0.0,\n\n      \/\/ Bottom\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n       0.0, -1.0,  0.0,\n\n      \/\/ Right\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n       1.0,  0.0,  0.0,\n\n      \/\/ Left\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0,\n      -1.0,  0.0,  0.0\n    ];\n    cubeVertexIndices = [\n              0, 1, 2,      0, 2, 3,    \/\/ Front face\n              4, 5, 6,      4, 6, 7,    \/\/ Back face\n              8, 9, 10,     8, 10, 11,  \/\/ Top face\n              12, 13, 14,   12, 14, 15, \/\/ Bottom face\n              16, 17, 18,   16, 18, 19, \/\/ Right face\n              20, 21, 22,   20, 22, 23  \/\/ Left face\n          ];\n    \/\/global variable to hold the cube buffer\n    \/\/We create a buffer for the cube's vertex positions.\n    cubeVertexPositionBuffer = Webgl.createBuffer(gl);\n    \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexPositionBuffer);\n    \/\/Now, we create a Float32Array object based on our list, \n    \/\/and tell WebGL to use it to fill the current buffer\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n    cubeVertexNormalBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), cubeVertexNormalBuffer);\n    do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n    cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n    do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n    do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n    { vertexPositions=cubeVertexPositionBuffer; itemSize=3; numItems=24; vertexNormals=cubeVertexNormalBuffer; vertexIndexs=cubeVertexIndexBuffer; picking_color=ColorFloat.random(); id=m_object.id; color=m_object.color\n    ; ~is_selected; position=m_object.cube; beginMode=Webgl.TRIANGLES(gl); numIndexs=36 } : object\n  ;\n\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"c4279beba131cfb159dcaba13b54a050aada9c8b","subject":"removing normals on line","message":"removing normals on line\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: option(Webgl.WebGLBuffer)\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  vertices = match orient with\n    | {x} -> [ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ]\n    | {y} -> [ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ]\n    | {z} -> [ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ]\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=Option.none }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine.scene = list(object);\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: engine.scene;\n  selector: dom;\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  g(x:int, y:int, w:int, h:int) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u);\n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\nrel_pos_in_box(this_viewbox, pos) =\n  x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n  y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n  (x, y);\n\ndrawScene_for_a_viewport(eng, who, viewport, camera_setting : mat4, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix = camera_setting;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter((object -> display(eng, pMatrix, mvMatrix, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter((object -> display(eng, pMatrix, mvMatrix, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\n@private drawScene_and_register(org_eng, viewbox, get_scene : (->Scene.Client.scene), get_camera_setting : (->Modeler.views)) =\n  to_be_pick = Mutable.make(List.empty);\n  rec aux(eng:engine) = (\n    gl = eng.context;\n    (eng, scene) =\n      f(is_selected, p) =\n        match List.find((z_in_mem -> z_in_mem.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with position=p.cube; ~is_selected; color=p.color }\n        | { none } -> Cube.create(gl, p, is_selected)\n        end;\n      scene : engine.scene =\n        tmp = get_scene();\n        others_scene = List.map(f(false, _), tmp.others.objs);\n        selection_scene = Option.switch((the -> [ f(true, the) ]), List.empty, tmp.selection);\n        List.append(selection_scene, others_scene);\n      ({ eng with ~scene }, scene);\n    views = get_camera_setting();\n\n    tmp_f(pos) = (\n      match which_box(viewbox, pos) with\n      | {out} -> Option.none\n      | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n        this_viewbox = fetch_box(viewbox, who);\n        some_settings = fetch_box(views, who);\n        mvMatrix = mat4.copy(some_settings.m) ;\n        _ = drawScene_for_a_viewport(eng, who, this_viewbox, mvMatrix, scene, {pick});\n        possible_target =\n          pickedColor =\n            data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n            do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n            match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }\");\n          f =\n            (r, g, b) = pickedColor;\n            (z -> (z.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.))) ;\n          Option.map((u -> u.id), List.find(f, eng.scene));\n        possible_target\n      end);\n    tmp = to_be_pick.get();\n    do to_be_pick.set(List.empty);\n    do List.iter(((pos, f) -> f(tmp_f(pos))), tmp);\n    do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n\n    eng =\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, views._YX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, views._YZ.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, views._ZX.m, scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, views._3D.m, scene, {normal});\n      eng;\n\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void );\n\n  do aux(org_eng);\n  (a -> to_be_pick.set(List.cons(a, to_be_pick.get())))\n;\n\ninitGL(canvas_sel, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    viewbox = setup_boxes(eng) ;\n    {} =\n      compute_abs_full_pos(rel_mouse_position_on_page) =\n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = rel_mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        abs_full_pos = { x_px=min(max(m_pos.x_px,0), width-1); y_px=min(max(height - 1 - m_pos.y_px, 0), height-1) };\n        do Log.debug(\"P\", \"[rel_mouse_position_on_page=({m_pos})] abs_full_pos=({abs_full_pos})\");\n        abs_full_pos;\n      compute_rel_quarter_pos(abs_full_pos) =\n        match which_box(viewbox, abs_full_pos) with\n        | {out} -> ((0., 0., 0.), {f1}, {out})\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          this_viewbox = fetch_box(viewbox, who);\n          some_settings = fetch_box(get_camera_setting(), who);\n          mvMatrix = mat4.copy(some_settings.m);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          (x, y) = rel_pos_in_box(this_viewbox, abs_full_pos);\n          vstart = vec4.from_public((x, y, 1.0, 1.0));\n          vtmp = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, vstart, vtmp);\n          vpreres = vec4.to_public(vtmp);\n          vres = (vpreres.f1 \/ vpreres.f4, vpreres.f2 \/ vpreres.f4, vpreres.f3 \/ vpreres.f4);\n          do Log.debug(\"Converting coord\", \"vstart={ vec4.str(vstart) }, \\t vres={ vres }\");\n          (vres, some_settings.clear_near_far, who);\n      handler_mousedown(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, _) = compute_rel_quarter_pos(abs_full_pos);\n        mouse_listener({ mousedown; ~event; ~abs_full_pos; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)) })\n      do ignore(Dom.bind(canvas_sel, { mousedown }, handler_mousedown));\n      handler_mouseup(event) =\n        abs_full_pos=compute_abs_full_pos(event.mouse_position_on_page);\n        (gl_pos, clear_near_far, who) = compute_rel_quarter_pos(abs_full_pos);\n        match who with\n        | {_3D} -> void\n        | _ -> mouse_listener({ mouseup; ~event; gl_pos=vec3.apply(gl_pos, clear_near_far, (_-> 0.0)); switch=clear_near_far })\n      do ignore(Dom.bind(canvas_sel, { mouseup }, handler_mouseup));\n      void;\n    \/\/Clear screen and make everything light gray \/\/ disabled to show png grid\n    \/\/do Webgl.clearColor(gl, 0.875, 0.875, 0.875, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do\n      gpu_picker_register = drawScene_and_register(eng, viewbox, get_scene, get_camera_setting);\n      do ignore(support_gpu_picking.set(Option.some(gpu_picker_register)));\n      void\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"14aefefa77b2b1a13f135b9da2eb3280e2704d79","subject":"separating the functional modeler","message":"separating the functional modeler\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.mode = {selection} \/ {add_cube} ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}} ;\n\nModeler = {{\n  empty(scene_url) = { address=scene_url; scene=Scene.empty(); mode={selection} } ;\n\n  use_tool(modeler, where) = \n    match modeler.mode with\n    | {add_cube} -> { modeler with scene=Scene.add_cube(modeler.scene, where) }\n    | {selection} -> modeler\n    end ;\n\n}} ;\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {click_on_scene; ~where} -> { set=Modeler.use_tool(state, where) }\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(Modeler.empty(scene_url), on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {click_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","old_contents":"\n\ntype Modeler.objects = { cube: (float, float, float); id: hidden_id } ;\n\ntype Modeler.scene = list(Modeler.objects) ;\n\ntype Modeler.mode = {selection} \/ {add_cube} ;\n\ntype Modeler = {\n  address: string;\n  scene: Modeler.scene;\n  mode: Modeler.mode\n} ;\n\nScene = {{ \n  empty() = [ {cube=(0.0, 0.0, -3.0); id=CHF()}, {cube=(3.0, 0.0, 0.0); id=CHF()}, {cube=(6.0, 0.0, 0.0); id=CHF()} ] ;\n\n  add_cube(scene, where) = List.cons({cube=(where.x, 0.0, where.z); id=CHF()}, scene) ;\n\n}}\n\n@client GuiModeler = {{\n\n  @private on_message(state : Modeler, message) = match message with\n    | {click_on_scene; ~where} ->\n      match state.mode with\n      | {add_cube} -> { set={ state with scene=Scene.add_cube(state.scene, where) }}\n      | {selection} -> {unchanged}\n      end\n    | _ -> {unchanged}\n    end ;\n\n  init(scene_url, canvas_sel, width, height) : outcome =\n    org_state = {\n      address=scene_url; scene=Scene.empty(); mode={selection}\n      } ;\n    (channel, get_scene) =\n      (channel, get_state) = SessionExt.make_with_getter(org_state, on_message);\n      (channel, (-> get_state().scene)) ;\n    mouse_listener(e) = match e with\n      | { mousedown; ~x; ~z } -> Session.send(channel, {click_to_scene; where={~x; ~z}})\n      end ;\n    res = initGL(canvas_sel, width, height, get_scene, mouse_listener) ;\n    match res with\n    | {success} ->\n\n      res\n    | _ -> res\n    end ;\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"f04a0474cf82e132555fe19b8e6155a09fa50672","subject":"cleaning the position a little","message":"cleaning the position a little\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) =\n  cnf_x(pos) = { pos with f1=0.0 }; cnf_y(pos) = { pos with f2=0.0 }; cnf_z(pos) = { pos with f3=0.0 };\n  g(x:int, y:int, w:int, h:int, clear_near_far) =\n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox; ~clear_near_far } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u, cnf_z); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u, cnf_x);\n    _ZX=g(0, 0, w_l, h_d, cnf_y);       _3D=g(w_l+e_w, 0, w_r, h_d, cnf_y) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f2.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=this_viewbox.clear_near_far(v2); ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } };\n  framePickBuffer: Webgl.WebGLFramebuffer;\n  scene: list((vec3, object));\n  selector: dom\n} ;\n\n@client initPickBuffer(eng) = \n  gl = eng.context;\n  framePickBuffer = Webgl.createFramebuffer(gl);\n  renderPickBuffer = Webgl.createRenderbuffer(gl);\n  pickTexture = Webgl.createTexture(gl);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.some(pickTexture));\n  tex = Webgl.Uint8Array.from_int_list([0, 0, 0]);\n  do Webgl.texImage2D(gl, Webgl.TEXTURE_2D(gl), 0, Webgl.RGB(gl), eng.canvas.width, eng.canvas.height, 0, Webgl.RGB(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(tex));\n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(framePickBuffer));\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.some(renderPickBuffer));\n  do Webgl.renderbufferStorage(gl, Webgl.RENDERBUFFER(gl), Webgl.DEPTH_COMPONENT16(gl), eng.canvas.width, eng.canvas.height);\n  do Webgl.bindRenderbuffer(gl, Webgl.RENDERBUFFER(gl), Option.none);\n\n  do Webgl.framebufferTexture2D(gl, Webgl.FRAMEBUFFER(gl), Webgl.COLOR_ATTACHMENT0(gl), Webgl.TEXTURE_2D(gl), pickTexture, 0);\n  do Webgl.framebufferRenderbuffer(gl, Webgl.FRAMEBUFFER(gl), Webgl.DEPTH_ATTACHMENT(gl), Webgl.RENDERBUFFER(gl), renderPickBuffer);  \n  do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n  do Webgl.bindTexture(gl, Webgl.TEXTURE_2D(gl), Option.none);\n  framePickBuffer\n;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  g(x:int, y:int, w:int, h:int) = \n    inbox(pos) = (pos.x_px >= x) && (pos.y_px >= y) && (pos.x_px < (w + x)) && (pos.y_px < (h + y));\n    { ~x; ~y; ~w; ~h; ~inbox } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2);\n      ((a, a), 0)\n    else\n      b = (x \/ 2);\n      ((b, b+1), 0);\n  ((w_l, w_r), e_w) = compute_left_right(eng.canvas.width);\n  ((h_u, h_d), e_h) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+e_h, w_l, h_u); _YZ=g(w_l+e_w, h_d+e_h, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d);       _3D=g(w_l+e_w, 0, w_r, h_d) }\n;\n\nwhich_box(b, pos) =\n  if b._YX.inbox(pos) then {_YX}\n  else if b._YZ.inbox(pos) then {_YZ}\n  else if b._ZX.inbox(pos) then {_ZX}\n  else if b._3D.inbox(pos) then {_3D}\n  else {out}\n;\n\nfetch_box(b, who) = match who with\n  | {_YX} -> b._YX\n  | {_YZ} -> b._YZ\n  | {_ZX} -> b._ZX\n  | {_3D} -> b._3D\n  end ;\n\ndrawScene_for_a_viewport(eng, who, viewport, eye, up, scene, mode) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    match who with\n    | {_YX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      tmp_pMatrix\n    | {_YZ} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateY(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_ZX} ->\n      do mat4.ortho(-7., 7., -7., 7., -10., 10., tmp_pMatrix);\n      mat4.rotateX(tmp_pMatrix, (90. * Math.PI \/ 180.), tmp_pMatrix)\n    | {_3D} ->\n      do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n      c = mat4.create() ;\n      do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n      do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n      tmp_pMatrix\n    end ;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n\n  _ = \n    match mode with\n    | {normal} ->\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n      do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n      do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n      do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n      do match who with \n        | {_3D} -> \n          do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n          Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75)\n        | _ -> void end;\n      List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, false)), scene)\n    | {pick} ->\n      do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.some(eng.framePickBuffer));\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false;\n      do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object, true)), scene);\n      void\n    end ;\n\n  (pMatrix, mvMatrix)\n;\n\ndrawScene_and_register(org_eng, get_scene : (->Modeler.scene), get_mode) =\n  viewbox = setup_boxes(org_eng) ;\n  rec aux(eng) =\n    gl = eng.context;\n    (eng, scene) = \n      f(p) = \n        match List.find((z_in_mem -> z_in_mem.f2.id == p.id), eng.scene) with\n        | { some=in_mem } -> { in_mem with f1=p.cube }\n        | { none } -> (p.cube, Cube.create(gl, p.id))\n        end;\n      scene = List.map(f, get_scene());\n      ({ eng with ~scene }, scene);\n    do match get_mode() with\n    | {pick=pos; ~cont} ->\n      match which_box(viewbox, pos) with\n        | {out} -> void\n        | {_YX} as who | {_YZ} as who | {_ZX} as who | {_3D} as who ->\n          do Log.debug(\"Picking\", \"in box: '{who}' \\t {viewbox}\");\n          this_viewbox = fetch_box(viewbox, who);\n          (pMatrix, s) = drawScene_for_a_viewport(eng, who, this_viewbox, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {pick});\n          x = (float_of_int(pos.x_px - this_viewbox.x) \/ float_of_int(this_viewbox.w)) * 2.0 - 1.0;\n          y = (float_of_int(pos.y_px - this_viewbox.y) \/ float_of_int(this_viewbox.h)) * 2.0 - 1.0;\n          mvMatrix = Stack.peek(s) ;\n          do mat4.multiply(pMatrix, mvMatrix, mvMatrix);\n          do mat4.inverse(mvMatrix, mvMatrix);\n          v1 = vec4.from_public((x, y, 1.0, 1.0));\n          v2 = vec4.from_public((9.9, 9.9, 9.9, 9.9));\n          do mat4.multiplyVec4(mvMatrix, v1, v2);\n          v22 = vec4.to_public(v2);\n          \/\/v22 = { v22 with f2=0.0 };\n          v2 = (v22.f1 \/ v22.f4, v22.f2 \/ v22.f4, v22.f3 \/ v22.f4);\n          data = Webgl.Uint8Array.from_int_list(List.init((_->123), 4));\n          do Webgl.readPixels(gl, pos.x_px, pos.y_px, 1, 1, Webgl.RGBA(gl), Webgl.UNSIGNED_BYTE(gl), Webgl.Uint8Array.to_ArrayBuffer(data));\n          pickedColor = match Webgl.Uint8Array.to_int_list(data) with\n            | [r, g, b, _] -> (r, g, b)\n            | _ -> error(\"Picking failure\")\n            end ;\n          do Log.debug(\"Picking\", \"Color is: { pickedColor }; v1={ vec4.str(v1) }, \\t v2={ v2 }\");\n          \/\/do jlog(\"Color is: { pickedColor }; v={ vec3.str(v) }\");\n          possible_target =\n            (r, g, b) = pickedColor;\n            f(z) = (z.f2.picking_color == (float_of_int(r) \/ 255., float_of_int(g) \/ 255., float_of_int(b) \/ 255.)) ;\n            Option.map((u -> u.f2.id), List.find(f, eng.scene));\n          do Webgl.bindFramebuffer(gl, Webgl.FRAMEBUFFER(gl), Option.none);\n          cont({ mousedown; pos=v2; ~possible_target })\n          end\n    | {normal} ->\n      do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n      _ = drawScene_for_a_viewport(eng, {_YX}, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_YZ}, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_ZX}, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, {normal});\n      _ = drawScene_for_a_viewport(eng, {_3D}, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, {normal});\n      void\n    end ;\n    do RequestAnimationFrame.request((_ -> aux(eng)), eng.selector);\n    void\n    ;\n  aux(org_eng) \n;\n\ninitGL(canvas_sel, width, height, get_scene, mouse_listener) : outcome =\n  match WebGLUtils.setupWebGL_with_custom_failure(Dom.of_selection(canvas_sel)) with\n  | { ok=context } ->\n    mode = Mutable.make_client({normal});\n    is_picking(m) = match m with | { pick=_; cont=_ } -> true | _ -> false end;\n    _ = \n      handler(e) = \n        m_pos = \/\/ we transform the pos to be relative to the upper leftcorner of the canvas\n          c_pos = Dom.get_offset(canvas_sel);\n          rel = e.mouse_position_on_page;\n          { x_px=max(rel.x_px - c_pos.x_px, 0); y_px=max(rel.y_px - c_pos.y_px, 0) };\n        \/\/ now with gl the origin will be at the lower left corner\n        gl_pos = { x_px=min(max(m_pos.x_px,0), height-1); y_px=min(max(height - 1 - m_pos.y_px, 0), width-1) };\n        cont(e) =\n          do mode.set({normal});\n          mouse_listener(e);\n        do if not(is_picking(mode.get())) then mode.set({pick=gl_pos; ~cont});\n        Log.debug(\"P\", \"[(,)-({m_pos.x_px},{m_pos.y_px})] {gl_pos.x_px}, {gl_pos.y_px}\");\n      Dom.bind(canvas_sel, { mousedown }, handler);\n    gl = context;\n    eng : engine =\n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height }; scene=List.empty; selector=canvas_sel });\n      start = { start with shaderProgram=initShaders(gl) };\n      start = { start with framePickBuffer=initPickBuffer(start) } ;\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, get_scene, mode.get);\n    { success }\n  | { ~ko } -> { failure=ko }\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"87d1091538dcb6af59f39bbe6aaaa43d1af42bc5","subject":"updating scene.empty","message":"updating scene.empty\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/modeler.opa","new_file":"src\/modeler\/modeler.opa","new_contents":"","old_contents":"","returncode":0,"stderr":"unknown","license":"agpl-3.0","lang":"Opa"}
{"commit":"513e8e50947f2765f43d66a14cddfd946ccf8ef7","subject":"separate icons","message":"separate icons\n","repos":"MLstate\/MindChat","old_file":"src\/mind.opa","new_file":"src\/mind.opa","new_contents":"import mindwave\n\nMW_TIMER = 1000\n\ntype mindstate = (int, int)\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><\/span>\n    <span class=\"ns-icon32 {preT}\"><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\n\n","old_contents":"import mindwave\n\nMW_TIMER = 1000\n\ntype mindstate = (int, int)\n\n\/** MindWave **\/\n\nclient function level_to_prefix(level) {\n  if (level <= 33) \"med\"\n  else if (level <= 66) \"att\"\n  else \"blnk\"\n}\n\nclient function mindwave_to_html(mindwave) {\n  match (mindwave) {\n  case {none}: <span class=\"ns-icon32 misc\"\/>\n  case {some:(t, r)}:\n    preT = \"{level_to_prefix(t)}Face\"\n    preR = \"{level_to_prefix(r)}Glow\"\n    <span class=\"ns-icon32 {preR}\"><span class=\"ns-icon32 {preT}\"\/><\/span>\n  }\n}\n\nclient @async function update_mindwaves(user_minds) {\n  List.iter(function((id, state)) {\n    #{\"{id}-state\"} = mindwave_to_html(state)\n  }, user_minds)\n}\n\nclient reference(option(mindstate)) mindstate =\n  ClientReference.create(none)\n\nclient function mind_changed(new_state) {\n  match (ClientReference.get(mindstate)) {\n  case {none}: Option.is_some(new_state)\n  case {some:(t, r)}:\n    match (new_state) {\n    case {none}: true\n    case {some:(thinking, relaxation)}:\n      thinking <= 33 && t > 33 ||\n      thinking <= 66 && (t > 66 || t <= 33) ||\n      thinking > 66 && t <= 66 ||\n      relaxation <= 33 && r > 33 ||\n      relaxation <= 66 && (r > 66 || r <= 33) ||\n      relaxation > 66 && r <= 66\n    }\n  }\n}\n\nclient function check_mindstate(user) {\n  new_mindstate =\n    if (MindWave.is_present()) {\n      thinking = MindWave.get_thinking_level()\n      relaxation = MindWave.get_relaxation_level()\n      Log.info(\"MindWave\", \"thinking:{thinking} - relaxation:{relaxation}\")\n      some((thinking, relaxation))\n    } else none\n  if (mind_changed(new_mindstate)) {\n    user = { user with mindwave:new_mindstate }\n    Network.broadcast({mindstate:user}, room)\n  }\n  ClientReference.set(mindstate, new_mindstate)\n}\n\n\/\/ Init various scheduling tasks\nclient function init_scheduling(user, _) {\n  Scheduler.timer(MW_TIMER, function(){\n    check_mindstate(user)\n  })\n}\n\nserver mindwave_flash =\n  <div id=\"flashContent\">\n    <object classid=\"clsid:d27cdb6e-ae6d-11cf-96b8-444553540000\" width=\"220\" height=\"40\" id=\"FlashToJs\" align=\"middle\">\n      <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n      <param name=\"quality\" value=\"high\" \/>\n      <param name=\"bgcolor\" value=\"#ffffff\" \/>\n      <param name=\"play\" value=\"true\" \/>\n      <param name=\"loop\" value=\"true\" \/>\n      <param name=\"wmode\" value=\"window\" \/>\n      <param name=\"scale\" value=\"showall\" \/>\n      <param name=\"menu\" value=\"true\" \/>\n      <param name=\"devicefont\" value=\"false\" \/>\n      <param name=\"salign\" value=\"\" \/>\n      <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <object type=\"application\/x-shockwave-flash\" data=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" width=\"220\" height=\"40\">\n        <param name=\"movie\" value=\"\/resources\/neurosky\/FlashToJs\/FlashToJs.swf\" \/>\n        <param name=\"quality\" value=\"high\" \/>\n        <param name=\"bgcolor\" value=\"#ffffff\" \/>\n        <param name=\"play\" value=\"true\" \/>\n        <param name=\"loop\" value=\"true\" \/>\n        <param name=\"wmode\" value=\"window\" \/>\n        <param name=\"scale\" value=\"showall\" \/>\n        <param name=\"menu\" value=\"true\" \/>\n        <param name=\"devicefont\" value=\"false\" \/>\n        <param name=\"salign\" value=\"\" \/>\n        <param name=\"allowScriptAccess\" value=\"sameDomain\" \/>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n        <a href=\"http:\/\/www.adobe.com\/go\/getflash\">\n                <img src=\"http:\/\/www.adobe.com\/images\/shared\/download_buttons\/get_flash_player.gif\" alt=\"Get Adobe Flash player\" \/>\n        <\/a>\n      {Xhtml.of_string_unsafe(\"<!--[if !IE]>-->\")}\n      <\/object>\n      {Xhtml.of_string_unsafe(\"<!--<![endif]-->\")}\n    <\/object>\n  <\/div>\n\n\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"9ecf40482213a1a586e41acbdb4a7862620ed6e2","subject":"simplified update_users function","message":"simplified update_users function\n","repos":"Aqua-Ye\/OpaChat,MLstate\/OpaChat","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(users) {\n  #users = <>Users: {List.length(users)}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.map(function(user) {\n        <li>{user.name}<\/li>\n      }, users)\n    update_users(users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","old_contents":"\/*  A simple, one-room, scalable real-time web chat, with file sharing\n\n    Copyright \u00a9 2010-2012 MLstate\n\n    This program is free software: you can redistribute it and\/or modify\n    it under the terms of the GNU Affero General Public License as\n    published by the Free Software Foundation, either version 3 of the\n    License, or (at your option) any later version.\n\n    This program is distributed in the hope that it will be useful,\n    but WITHOUT ANY WARRANTY; without even the implied warranty of\n    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the\n    GNU Affero General Public License for more details.\n\n    You should have received a copy of the GNU Affero General Public License\n    along with this program.  If not, see <http:\/\/www.gnu.org\/licenses\/>.\n*\/\n\n\/**\n * @author David Rajchenbach-Teller\n * @author Henri Binsztok\n * @author Frederic Ye\n *\/\n\nimport stdlib.system\nimport stdlib.themes.bootstrap\n\n\/** Constants **\/\n\nGITHUB_USER = \"Aqua-Ye\"\nGITHUB_REPO = \"OpaChat\"\nNB_LAST_MSGS = 10\n\n\/** Types **\/\n\ntype user = { int id, string name }\ntype source = { system } or { string user }\ntype message = {\n  source source,\n  string text,\n  Date.date date,\n}\ntype media = {\n  source source,\n  string name,\n  string src,\n  string mimetype,\n  Date.date date,\n}\ntype client_channel = channel(void)\ntype network_msg =\n   {message message}\nor {media media}\nor {(user, client_channel) connection}\nor {user disconnection}\nor {stats}\n\n\/** Database **\/\n\ndatabase intmap(message) \/history\n\n\/** Top level values **\/\n\nexposed Network.network(network_msg) room = Network.cloud(\"room\")\nprivate reference(intmap(user)) users = ServerReference.create(IntMap.empty)\n\n\/** Connection **\/\n\nserver function server_observe(message) {\n  match (message) {\n  case {connection:(user, client_channel)} :\n    ServerReference.update(users, IntMap.add(user.id, user, _))\n    Network.broadcast({stats}, room)\n    Session.on_remove(client_channel, function() {\n      server_observe({disconnection:user})\n    })\n  case {disconnection:user} :\n    ServerReference.update(users, IntMap.remove(user.id, _))\n    Network.broadcast({stats}, room)\n  default: void\n  }\n}\n\n_ = Network.observe(server_observe, room)\n\n\/** Stats **\/\n\n\/\/ Compute uptime and memory usage (MB)\nserver function compute_stats() {\n  uptime = Date.between(System.gmt_launch_date, Date.now_gmt())\n  mem = System.get_memory_usage()\/(1024*1024)\n  (uptime, mem)\n}\n\nclient @async function update_stats((uptime, mem)) {\n  #uptime = <>Uptime: {Duration.to_formatted_string(Duration.long_time_printer, uptime)}<\/>\n  #memory = <>Memory: {mem} MB<\/>\n}\n\n\/** Users **\/\n\nclient @async function update_users(nb_users, users) {\n  #users = <>Users: {nb_users}<\/>\n  #user_list = <ul>{users}<\/ul>\n}\n\n\/** Conversation **\/\n\n\/\/ converts a source into HTML\nfunction source_to_html(source) {\n  match (source) {\n  case {system} : <span class=\"system\"\/>\n  case {~user} : <span class=\"user\">{user}<\/span>\n  }\n}\n\nprivate client function generic_update(stats, elements, printer) {\n  update_stats(stats)\n  List.iter(function(element) {\n    date = Date.to_formatted_string(Date.default_printer, element.date)\n    time = Date.to_string_time_only(element.date)\n    line = <div class=\"line\">\n              <span class=\"date\" title=\"{date}\">{time}<\/span>\n              {printer(element)}\n           <\/div>\n    #conversation =+ line\n  }, elements)\n  Dom.scroll_to_bottom(#conversation)\n}\n\nclient @async function message_update(stats, list(message) messages) {\n  generic_update(stats, messages, function(message) {\n    source_to_html(message.source) <+>\n    <span class=\"message\">{message.text}<\/span>\n  })\n}\n\nclient @async function media_update(stats, list(media) medias) {\n  media_parser = parser {\n    case \"image\/\" .*: {image}\n    case \"audio\/\" .*: {audio}\n    case \"video\/\" .*: {video}\n  }\n  generic_update(stats, medias, function(media) {\n    source_to_html(media.source) <+>\n    ( match (Parser.try_parse(media_parser, media.mimetype)) {\n      case {some:{image}}:\n        <img src=\"{media.src}\" alt=\"{media.name}\"\/>\n      case {some:{audio}}:\n        <audio src=\"{media.src}\"\n               controls=\"controls\"\n               type=\"{media.mimetype}\"\n               preload=\"auto\">\n          Your browser does not support the audio tag!\n        <\/audio>\n      case {some:{video}}:\n        <video src=\"{media.src}\"\n               controls=\"controls\"\n               preload=\"auto\"\n               type=\"{media.name}\">\n          Your browser does not support the video tag!\n        <\/video>\n      default:\n        <span class=\"media {media.mimetype}\">is sharing a file :\n          <a target=\"_blank\" href=\"{media.src}\"\n             draggable=\"true\"\n             data-downloadurl=\"{media.mimetype}:{media.name}:{media.src}\">{media.name}<\/a>\n        <\/span>\n      } )\n  })\n}\n\nserver function file_uploaded(user)(name, mimetype, key) {\n  media = {\n    source: {user:user.name},\n    ~name,\n    src: \"\/file\/{key}\",\n    ~mimetype,\n    date: Date.now(),\n  }\n  Network.broadcast({~media}, room)\n}\n\nserver function client_observe(msg) {\n  match (msg) {\n  case {~message} :\n    message_update(compute_stats(), [message])\n  case {~media} :\n    media_update(compute_stats(), [media])\n  case {connection:(user, _)} :\n    message = {\n      source: {system},\n      text : \"{user.name} joined the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {disconnection:user} :\n    message = {\n      source: {system},\n      text : \"{user.name} left the room\",\n      date : Date.now(),\n    }\n    message_update(compute_stats(), [message])\n  case {stats} :\n    update_stats(compute_stats())\n    users = ServerReference.get(users)\n            |> IntMap.To.val_list(_)\n            |> List.sort_by(function(u){u.name}, _)\n    users_html_list =\n      List.fold(function(user, acc) {\n        <li>{user.name}<\/li>\n        <+> acc\n      }, users, <><\/>)\n    update_users(List.length(users), users_html_list)\n  default : void\n  }\n}\n\n\/\/ Init the client from the server\nserver function init_client(user, client_channel, _) {\n  \/\/ Observe client\n  obs = Network.observe(client_observe, room)\n  Network.broadcast({connection:(user, client_channel)}, room)\n  \/\/ Observe disconnection\n  Dom.bind_beforeunload_confirmation(function(_) {\n    Network.broadcast({disconnection:user}, room)\n    Network.unobserve(obs)\n    none\n  })\n  \/\/ Send NB_LAST_MSGS messages\n  history_list = IntMap.To.val_list(\/history)\n  len = List.length(history_list)\n  history = List.drop(len-NB_LAST_MSGS, history_list)\n  message_update(compute_stats(), history)\n  \/\/ Initialize OpaShare\n  OpaShare.init(file_uploaded(user))\n}\n\nclient @async function send_message(broadcast, _) {\n  void broadcast(Dom.get_value(#entry))\n  Dom.clear_value(#entry)\n}\n\nexposed @async function enter_chat(user_name, client_channel) {\n  user = {\n    id: Random.int(max_int),\n    name: user_name\n  }\n  function broadcast(text) {\n    message = {source:{user:user_name}, ~text, date:Date.now()}\n    \/history[?] <- message\n    Network.broadcast({~message}, room)\n  }\n  #main =\n    <div id=#sidebar>\n      <h4>Users online<\/h4>\n      <div id=#user_list\/>\n      {OpaShare.html()}\n    <\/div>\n    <div id=#content\n         onready={init_client(user, client_channel, _)}>\n      <div id=#stats><div id=#users\/><div id=#uptime\/><div id=#memory\/><\/div>\n      <div id=#conversation\/>\n      <div id=#chatbar>\n        <input id=#entry\n               autofocus=\"autofocus\"\n               onready={function(_){Dom.give_focus(#entry)}}\n               onnewline={send_message(broadcast, _)}\n               x-webkit-speech=\"x-webkit-speech\"\/>\n      <\/div>\n    <\/div>\n}\n\nclient @async function join(_) {\n  name = Dom.get_value(#name)\n  client_channel = Session.make_callback(ignore)\n  enter_chat(name, client_channel)\n}\n\n\/** Server **\/\n\nwatch_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=watch&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfork_button =\n  <iframe src=\"http:\/\/markdotto.github.com\/github-buttons\/github-btn.html?user={GITHUB_USER}&repo={GITHUB_REPO}&type=fork&count=true&size=large\"\n          allowtransparency=\"true\" frameborder=\"0\" scrolling=\"0\" width=\"146px\" height=\"30px\"><\/iframe>\n\nfunction build_page(content) {\n  <div id=#header>\n    <h2 class=\"pull-left\">OpaChat<\/h2>\n    <div class=\"buttons pull-right\">\n      {watch_button}\n      {fork_button}\n    <\/div>\n  <\/div>\n  <div id=#main>{content}<\/div>\n}\n\n\/\/ Page headers\nheaders =\n  Xhtml.of_string_unsafe(\"\n<!--[if lt IE 9]>\n<script src=\\\"\/\/html5shiv.googlecode.com\/svn\/trunk\/html5.js\\\"><\/script>\n<![endif]-->\") <+>\n  <meta charset=\"utf-8\"><\/meta>\n  <meta http-equiv=\"X-UA-Compatible\" content=\"IE=edge,chrome=1\"><\/meta>\n  <meta name=\"viewport\" content=\"width=device-width,initial-scale=1\"><\/meta>\n\n\/\/ Start page\nserver function start() {\n  page = build_page(\n    <h4>A real-time web chat built in Opa.<\/h4>\n    <div id=#login class=\"form-inline\">\n      <input id=#name\n             placeholder=\"Name\"\n             autofocus=\"autofocus\"\n             onready={function(_){Dom.give_focus(#name)}}\n             onnewline={join}\/>\n       <button class=\"btn primary\"\n               onclick={join}>Join<\/button>\n    <\/div>\n  )\n  Resource.full_page_with_doctype(\n    \"OpaChat - a real-time web chat built in Opa\",\n    {html5},\n    page, headers, {success},\n    []\n  )\n}\n\n\/\/ Parse URL\nurl_parser = parser {\n  case \"\/file\/\" key=Rule.integer:\n    match (OpaShare.get(key)) {\n    case {some:file}:\n      Resource.binary(file.content, file.mimetype)\n      |> Resource.add_header(_, {content_disposition:{attachment:file.name}})\n    default: start()\n    }\n  case (.*): start()\n}\n\n\/\/ Start the server\nServer.start(Server.http, [\n  { resources : @static_resource_directory(\"resources\") }, \/\/ include resources directory\n  { register : [\"\/resources\/css\/style.css\"] }, \/\/ include CSS in headers\n  { register : {favicon:[{format:{gif}, path:\"\/resources\/img\/favicon.gif\"}]} }, \/\/ include favicon in headers\n  { custom : url_parser } \/\/ URL parser\n])\n","returncode":0,"stderr":"","license":"mit","lang":"Opa"}
{"commit":"7a65637cc45596670db2527f1afa87d3505366b5","subject":"coding a specific function to apply change on subject","message":"coding a specific function to apply change on subject\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/guiModeler.opa","new_file":"src\/modeler\/guiModeler.opa","new_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\ntype subjects_changes = list({tool} \/ { selection: list({this} \/ {color}) });\n\napply_changes(state : GuiModeler.t, changes : subjects_changes) =\n  modeler = state.modeler;\n  a(tmp_a, sub) = match tmp_a with\n    | {tool} -> { sub with tool=Observable.change_state(modeler.tool, sub.tool) }\n    | {selection=chan_sel} ->\n      b(tmp_b, sel) = match tmp_b with\n        | {this} -> { sel with this=Observable.change_state(modeler.scene.selection, sel.this) }\n        | {color} ->\n          tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n          { sel with color=Observable.change_state(tmp , sel.color) }\n        end;\n      { sub with selection=List.fold(b, chan_sel, sub.selection) }\n    end;\n  { state with subjects=List.fold(a, changes : subjects_changes, state.subjects) } : GuiModeler.t;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","old_contents":"import stdlib.widgets.colorpicker\nimport stdlib.widgets.core\n\ntype GuiModeler.t = {\n  modeler: Modeler.modeler;\n  subjects: { \n    tool: subject(Modeler.tool);\n    selection: { this: subject(option(Scene.objects)); color: subject(ColorFloat.color) }\n    };\n  width: int; height: int\n} ;\n\n@client GuiModeler = {{\n\n  Sync = {{\n    on_message(state : GuiModeler.t, message) = \n      set_modeler(modeler) = { set={ state with ~modeler } } ;\n      set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n      match message : Central.Modelers.sync.message with\n      | {load=a_scene} -> \n        modeler = Modeler.load(`Scene.Client`.load(a_scene, state.modeler.client_id), state.modeler.address, state.modeler.client_id, float_of_int(state.height) \/ float_of_int(state.width));\n        subjects = \n          { state.subjects with selection={ \n              this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n              color=\n                tmp = Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection);\n                Observable.change_state(tmp , state.subjects.selection.color) } };\n        set({ ~subjects; ~modeler })\n      | { write_patch; ~patch } -> \n        modeler = Modeler.write_patch(state.modeler, patch);\n        set_modeler(modeler)\n      end ;\n  }}\n\n  empty(scene_url, client_id, width, height) : GuiModeler.t = \n    modeler = Modeler.empty(scene_url, client_id, float_of_int(height) \/ float_of_int(width));\n    subjects = { tool=Observable.make(modeler.tool); selection={ this=Observable.make(modeler.scene.selection); color=Observable.make( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) ) } };\n    { ~modeler; ~subjects; ~width; ~height };\n\n  @private on_message(state : GuiModeler.t, message) = \n    _set_modeler(modeler) = { set={ state with ~modeler } } ;\n    _set_subjects(subjects) = { set={ state with ~subjects } } ;\n    set(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    _set_with_last(new_state) = { set={ state with subjects=new_state.subjects; modeler=new_state.modeler } };\n    send_opatch(opatch) =\n      m(patch) = { apply_patch; ~patch; address=state.modeler.address }; \n      Option.iter((p -> Session.send(central_modelers, m(p))), opatch);\n    reset_subjects(modeler) =\n      subjects = { state.subjects with selection={ this=Observable.change_state(modeler.scene.selection, state.subjects.selection.this); \n                                                   color=Observable.change_state( Option.switch((o->o.color), ColorFloat.random(), modeler.scene.selection) , state.subjects.selection.color) } };\n      { state with ~subjects; ~modeler };\n    match message with\n    | {click_on_scene; ~where; ~possible_target} ->\n      (modeler, opatch) = Modeler.tool_use(state.modeler, where, possible_target);\n      do send_opatch(opatch);\n      if Observable.get_state(state.subjects.selection.this) == modeler.scene.selection then\n        { set={ state with ~modeler } }\n      else\n        state = reset_subjects(modeler);\n        set(state)\n    | {modeler_change_tool=new_tool} ->\n      modeler = Modeler.tool_change(state.modeler, new_tool);\n      subjects = { state.subjects with tool=Observable.change_state(new_tool, state.subjects.tool) };\n      set({ ~subjects; ~modeler })\n    | {modeler_change_scene_selection_color; ~new_color} ->\n      (modeler, opatch) = Modeler.scene_change_selection_color(state.modeler, new_color);\n      do send_opatch(opatch);\n      subjects = { state.subjects with selection.color=Observable.change_state(new_color, state.subjects.selection.color) };\n      set({ ~subjects; ~modeler})\n    | {modeler_apply_possible_move; ~where; ~switch } -> \n      (modeler, opatch) = Modeler.do_possible_move(state.modeler, where, switch);\n      do send_opatch(opatch);\n      { set={ state with ~modeler } }\n    | {modeler_delete_scene_selection} ->\n      (modeler, opatch) = Modeler.scene_delete_selection(state.modeler);\n      do send_opatch(opatch);\n      set(reset_subjects(modeler))\n    end ;\n\n  setup_menu(parent_sel, channel, s_tool) : void =\n    f(some_tool) = match some_tool with\n      | {selection} -> (<span class=\"button active\">Select<\/span>, <span class=\"button\">Cube<\/span>)\n      | {add_cube} -> (<span class=\"button\">Select<\/span>, <span class=\"button active\">Cube<\/span>)\n      end ;\n    (id_a, id_b) = (Random.string(7), Random.string(7));\n    on_tool_change = \n      then_do(new_tool) = \n        (text_a, text_b) = f(new_tool);\n        Dom.transform([#{id_a}<- text_a, #{id_b}<- text_b]);\n      { si=(-> not(Dom.is_empty(#{id_a})) && not(Dom.is_empty(#{id_b}))); ~then_do; else_autoclean };\n    do Observable.register(on_tool_change, s_tool);\n    menu =\n      s(x) = (_ -> Session.send(channel, {modeler_change_tool=x}));\n      <div class=\"panel_top\"><a id=#{id_a} onclick={s({selection})} ><\/a> <a id=#{id_b} onclick={s({add_cube})} ><\/a><\/div>;\n    ignore(Dom.put_at_start(parent_sel, Dom.of_xhtml(menu)));\n\n  setup_selection_view(parent_sel, channel, s_selection) : void =\n    id = Random.string(7);\n    do\n      f(some_selection) = match some_selection with\n        | {none} -> <><\/>\n        | {some=_} ->\n          id = Random.string(7);\n          config =\n            style = { WColorpicker.default_config_style with preview=WStyler.make_style(css { height:10px; width:10px; border:1px double black;}) };\n            s(a_color) =\n              Session.send(channel, {modeler_change_scene_selection_color; new_color=ColorFloat.from_Color_color(a_color)});\n            { WColorpicker.default_config with on_select=s; ~style };\n          do\n            on_sel_color_change =\n              then_do(f_new_color) = \n                new_color = ColorFloat.to_Color_color(f_new_color);\n                WColorpicker.set_color(id, config, new_color, false);\n              { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n            Observable.register(on_sel_color_change, s_selection.color);\n          <div class=\"panel_btm\">\n            <em>Cube<\/em>\n            <ul>\n              <li><label>Color: <div id=#{id} style=\"display: inline-block\" >{ WColorpicker.html(id, config) }<\/div><\/label><\/li>\n              <li><a onclick={_ -> Session.send(channel, {modeler_delete_scene_selection})}>Remove me<\/a><\/li>\n            <\/ul>\n          <\/div>\n        end ;\n      on_selection_change =\n        then_do(new_selection) = Dom.transform([#{id}<- f(new_selection)]);\n        { si=(->not(Dom.is_empty(#{id}))); ~then_do; else_autoclean };\n      Observable.register(on_selection_change, s_selection.this);\n    sel =\n      <div id=#{id}><\/div>;\n    ignore(Dom.put_at_end(parent_sel, Dom.of_xhtml(sel)));\n\n  \n  init(scene_url, client_id, parent_sel:dom, width, height) : void =\n    id_canvas_canvas = \"canvas_canvas\" ;\n    fail_msg = \n      <>It seems that your browser and\/or graphics card are incompatible with Webgl.<a href=\"http:\/\/www.khronos.org\/webgl\/wiki\/Getting_a_WebGL_Implementation\" >Learn a little more about webgl support<\/a><\/> ;\n    and_do(_) =\n      (channel, get_scene, get_subjects, get_camera_setting) =\n        (channel, sync_channel, get_state) = SessionExt.make_2_side(empty(scene_url, client_id, width, height), on_message, Sync.on_message);\n        do Session.send(central_modelers, {register; ~scene_url; ~sync_channel; ~client_id});\n        (channel, (-> get_state().modeler.scene), (->get_state().subjects), (->get_state().modeler.views)) ;\n      support_gpu_picking = Mutable.make(Option.none);\n      mouse_listener =\n        epsilon_sensi = 200;\n        rec on_message_mouse_listener(state_mouse, msg) =\n          match msg with\n          | { mousedown; event=_; ~abs_full_pos; ~gl_pos; ~now } ->\n            f(gpu_picker_regsiter) =\n              sub(possible_target) =\n                do Session.send(channel, {click_on_scene; where=gl_pos; ~possible_target});\n                Session.send(channel_mouse_listener, { _internal; done_down });\n              gpu_picker_regsiter((abs_full_pos, sub)) ;\n            do Option.iter(f, support_gpu_picking.get());\n            { set={ running_down=List.empty; time_tag=now } }\n          | { mouseup; event=_; ~gl_pos; ~switch; now=when_up } ->\n            f() =\n              msg = {modeler_apply_possible_move; where=gl_pos; ~switch };\n              Session.send(channel, msg);\n            match state_mouse with\n            | { nothing; ~time_tag } ->\n              do if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              { unchanged }\n            | { running_down=l; ~time_tag } ->\n              { set={ running_down=List.cons((when_up, f), l); ~time_tag } }\n            end\n          | { _internal; done_down } -> match state_mouse with\n            | { nothing; time_tag=_ } -> { unchanged }\n            | { running_down=l; ~time_tag } ->\n              g((when_up, f)) =\n                if (when_up - time_tag) >= epsilon_sensi then f() else void;\n              do List.iter(g, l); { set={ nothing; ~time_tag } }\n            end\n          end\n        and val channel_mouse_listener = Session.make({nothing; time_tag=0}, on_message_mouse_listener);\n        (msg -> Session.send(channel_mouse_listener, msg));\n      res = initGL(#{id_canvas_canvas}, width, height, get_scene, get_camera_setting, mouse_listener, support_gpu_picking) ;\n      if Outcome.is_failure(res) then ignore(Dom.put_replace(parent_sel, Dom.of_xhtml(fail_msg))) \n      else \n        the_subjects = get_subjects();\n        do setup_menu(parent_sel, channel, the_subjects.tool);\n        setup_selection_view(parent_sel, channel, the_subjects.selection);\n    base =\n      <div class=\"canvas_wrap\"><canvas width={width} height={height} id=#{id_canvas_canvas} onready={and_do} ><\/canvas><\/div>;\n    ignore(Dom.put_inside(parent_sel, Dom.of_xhtml(base)));\n\n}}\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"3eed0a59ce79cedaf4b7f68fef2642d0bc35f780","subject":"displaying some more cube","message":"displaying some more cube\n","repos":"MLstate\/webgldemo","old_file":"src\/engine\/engine.opa","new_file":"src\/engine\/engine.opa","new_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n  \/*\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(scene), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  mvMatrix = Stack.update_and_push(Stack.pop(mvMatrix), (o, n -> mat4.translate(o, vec3.from_public((2.0, 2.0, 0.0)), n)));\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  *\/\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->list(vec3)), squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    scene = List.map((p -> (p, Cube.create(gl))), get_scene());\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> [ (0.0, 0.0, 0.0), (3.0, 0.0, 0.0), (6.0, 0.0, 0.0) ]), squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","old_contents":"@private type my_custom_shaderProgram = { \n  program: Webgl.WebGLProgram;\n  vertexPositionAttribute: Webgl.GLint;\n  vertexNormalAttribute: Webgl.GLint;\n  pMatrixUniform: Webgl.WebGLUniformLocation;\n  mvMatrixUniform: Webgl.WebGLUniformLocation;\n  nMatrixUniform: Webgl.WebGLUniformLocation;\n  ambientColorUniform: Webgl.WebGLUniformLocation;\n  lightingDirectionUniform: Webgl.WebGLUniformLocation;\n  useLightingUniform: Webgl.WebGLUniformLocation \n};\n\n@private type static_buffer = {\n  positions: Webgl.WebGLBuffer;\n  itemSize: int; numItems: int;\n  normals: Webgl.WebGLBuffer\n};\n\n@private type engine = {\n  context: Webgl.Context.private;\n  canvas: { selector:dom; width: int; height: int };\n  shaderProgram: my_custom_shaderProgram\n  static_buffers: { repcoords: { x:static_buffer; y:static_buffer; z:static_buffer } }\n} ;\n\ninitShaders(gl) = \n  f(e, str) = \n    shader = Webgl.createShader(gl, e);\n    do Webgl.shaderSource(gl, shader, str);\n    do Webgl.compileShader(gl, shader);\n    shader;\n  fragmentShader = f(Webgl.FRAGMENT_SHADER(gl), CustomShaders.shader_fs);\n  vertexShader = f(Webgl.VERTEX_SHADER(gl), CustomShaders.shader_vs);\n  \/\/ TODO getShaderParameter\n  shaderProgram = Webgl.createProgram(gl);\n  do Webgl.attachShader(gl, shaderProgram, vertexShader);\n  do Webgl.attachShader(gl, shaderProgram, fragmentShader);\n  do Webgl.linkProgram(gl, shaderProgram);\n  \/\/ TODO : getProgramParameter(shaderProgram, gl.LINK_STATUS)) {\n  do Webgl.useProgram(gl, shaderProgram);\n  shaderProgram = \n    vertexPositionAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexPosition\");\n    vertexNormalAttribute = Webgl.getAttribLocation(gl, shaderProgram, \"aVertexNormal\");\n    do Webgl.enableVertexAttribArray(gl, vertexPositionAttribute);\n    do Webgl.enableVertexAttribArray(gl, vertexNormalAttribute);\n    { program = shaderProgram;\n      ~vertexPositionAttribute;\n      ~vertexNormalAttribute;\n      pMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uPMatrix\");\n      mvMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uMVMatrix\");\n      nMatrixUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uNMatrix\");\n      ambientColorUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uAmbientColor\");\n      lightingDirectionUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uLightingDirection\");\n      useLightingUniform = Webgl.getUniformLocation(gl, shaderProgram, \"uUseLighting\");\n    };\n  shaderProgram\n;\n\n\ninitBuffers(gl) =\n  \/\/global variable to hold the square buffer\n  \/\/We create a buffer for the square's vertex positions.\n  squareVertexPositionBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer);\n  \/\/define our vertex positions as a list\n  vertices = [\n      \/\/ Front face\n      -1.0, -1.0,  1.0,\n       1.0, -1.0,  1.0,\n       1.0,  1.0,  1.0,\n      -1.0,  1.0,  1.0,\n\n      \/\/ Back face\n      -1.0, -1.0, -1.0,\n      -1.0,  1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0, -1.0, -1.0,\n\n      \/\/ Top face\n      -1.0,  1.0, -1.0,\n      -1.0,  1.0,  1.0,\n       1.0,  1.0,  1.0,\n       1.0,  1.0, -1.0,\n\n      \/\/ Bottom face\n      -1.0, -1.0, -1.0,\n       1.0, -1.0, -1.0,\n       1.0, -1.0,  1.0,\n      -1.0, -1.0,  1.0,\n\n      \/\/ Right face\n       1.0, -1.0, -1.0,\n       1.0,  1.0, -1.0,\n       1.0,  1.0,  1.0,\n       1.0, -1.0,  1.0,\n\n      \/\/ Left face\n      -1.0, -1.0, -1.0,\n      -1.0, -1.0,  1.0,\n      -1.0,  1.0,  1.0,\n      -1.0,  1.0, -1.0,\n    ];\n  vertexNormals = [\n    \/\/ Front\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     0.0,  0.0,  1.0,\n     \n    \/\/ Back\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     0.0,  0.0, -1.0,\n     \n    \/\/ Top\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     0.0,  1.0,  0.0,\n     \n    \/\/ Bottom\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     0.0, -1.0,  0.0,\n     \n    \/\/ Right\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     1.0,  0.0,  0.0,\n     \n    \/\/ Left\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0,\n    -1.0,  0.0,  0.0\n  ];\n  cubeVertexIndices = [\n            0, 1, 2,      0, 2, 3,    \/\/ Front face\n            4, 5, 6,      4, 6, 7,    \/\/ Back face\n            8, 9, 10,     8, 10, 11,  \/\/ Top face\n            12, 13, 14,   12, 14, 15, \/\/ Bottom face\n            16, 17, 18,   16, 18, 19, \/\/ Right face\n            20, 21, 22,   20, 22, 23  \/\/ Left face\n        ];\n  \/\/Now, we create a Float32Array object based on our list, \n  \/\/and tell WebGL to use it to fill the current buffer\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), Webgl.STATIC_DRAW(gl));\n  \/\/this 9-element buffer actually represents three separate vertex \n  \/\/positions (numItems), each of which is made up of three numbers (itemSize).\n  \/\/do Webgl.set_itemSize(squareVertexPositionBuffer, 3);\n  \/\/do Webgl.set_numItems(squareVertexPositionBuffer, 4);\n  squareVertexNormalBuffer = Webgl.createBuffer(gl);\n  \/\/tells WebGL that any following operations that act on buffers should use the one we specify\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), Webgl.STATIC_DRAW(gl));\n  cubeVertexIndexBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), cubeVertexIndexBuffer);\n  do Webgl.bufferData(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), Webgl.Uint16Array.to_ArrayBuffer(Webgl.Uint16Array.from_int_list(cubeVertexIndices)), Webgl.STATIC_DRAW(gl));\n  { positions=squareVertexPositionBuffer; itemSize=3; numItems=24; normals=squareVertexNormalBuffer; indexs=cubeVertexIndexBuffer }\n;\n\ninitLineXBuffers(gl, orient) =\n  (vertices, vertexNormals) = match orient with\n    | {x} -> ([ 0.0, 0.0, 0.0, 5.0, 0.0, 0.0 ], [ 2.5, 0.0, 0.0,        2.5, -1.0, 0.0 ])\n    | {y} -> ([ 0.0, 0.0, 0.0, 0.0, 5.0, 0.0 ], [ 0.0, 2.5, 0.0,        -1.0, 2.5, 0.0 ])\n    | {z} -> ([ 0.0, 0.0, 0.0, 0.0, 0.0, 5.0 ], [ 0.0, 0.0, 2.5,        0.0, -1.0, 2.5 ])\n    end ;\n  vertexPositionBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexPositionBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertices)), \n    Webgl.STATIC_DRAW(gl));\n  vertexNormalBuffer = Webgl.createBuffer(gl);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), vertexNormalBuffer);\n  do Webgl.bufferData(gl, Webgl.ARRAY_BUFFER(gl), \n    Webgl.Float32Array.to_ArrayBuffer(Webgl.Float32Array.from_float_list(vertexNormals)), \n    Webgl.STATIC_DRAW(gl));\n  { positions=vertexPositionBuffer; itemSize=3; numItems=2; normals=vertexNormalBuffer }\n;\n\nsetMatrixUniforms(gl, shaderProgram, pMatrix, mvMatrix) =\n  a = \n    b = mat4.to_list(pMatrix);\n    c = Webgl.Float32Array.from_float_list(b);\n    c;\n  e =\n    f = mat4.to_list(mvMatrix);\n    g = Webgl.Float32Array.from_float_list(f);\n    g;\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.pMatrixUniform, false, a);\n  do Webgl.uniformMatrix4fv(gl, shaderProgram.mvMatrixUniform, false, e);\n  normalMatrix = mat3.create();\n  do mat4.toInverseMat3(mvMatrix, normalMatrix);\n  do mat3.transpose(normalMatrix, normalMatrix);\n  do Webgl.uniformMatrix3fv(gl, shaderProgram.nMatrixUniform, false, Webgl.Float32Array.from_float_list(mat3.to_list(normalMatrix)));\n  void\n;\n\nsetup_boxes(eng) = \n  sep_largeur = 2;\n  g(x, y, w, h) = { ~x; ~y; ~w; ~h } ;\n  compute_left_right(x) = if ((mod(x, 2)) == 0) then\n      a = (x \/ 2) - 1;\n      (a, a)\n    else\n      b = (x \/ 2);\n      (b - 1, b);\n  (w_l, w_r) = compute_left_right(eng.canvas.width);\n  (h_u, h_d) = compute_left_right(eng.canvas.height);\n  { _YX=g(0, h_d+sep_largeur, w_l, h_u); _YZ=g(w_l+sep_largeur, h_d+sep_largeur, w_r, h_u); \n    _ZX=g(0, 0, w_l, h_d); _3D=g(w_l+sep_largeur, 0, w_r, h_d) }\n;\n\ndrawScene_for_a_viewport(eng, viewport, eye, up, scene, squareVertexPositionBuffer) =\n  gl = eng.context; shaderProgram = eng.shaderProgram; repcoords = eng.static_buffers.repcoords;\n  do Webgl.viewport(gl, viewport.x, viewport.y, viewport.w, viewport.h);\n  pMatrix =\n    tmp_pMatrix = mat4.create();\n    do mat4.perspective(45., float_of_int(eng.canvas.width) \/ float_of_int(eng.canvas.height), 0.1, 100.0, tmp_pMatrix);\n    c = mat4.create() ;\n    do mat4.lookAt(vec3.from_public(eye), vec3.from_public((0.0, 0.0, 0.0)), vec3.from_public(up), c);\n    do mat4.multiply(tmp_pMatrix, c, tmp_pMatrix);\n    tmp_pMatrix;\n  mvMatrix = \n    tmp_mvMatrix = mat4.create();\n    do mat4.identity(tmp_mvMatrix);\n    Stack.push(Stack.create(), tmp_mvMatrix);\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  draw_rep(r, g, b, rep) =\n    do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 0); \/\/ 0 = false\n    do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, r, g, b);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.positions);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), rep.normals);\n    do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, rep.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n    do Webgl.drawArrays(gl, Webgl.LINES(gl), 0, rep.numItems);\n    void ;\n  do draw_rep(1.0, 0.0, 0.0, repcoords.x);\n  do draw_rep(0.0, 1.0, 0.0, repcoords.y);\n  do draw_rep(0.0, 0.0, 1.0, repcoords.z);\n  \/*\n  do Webgl.uniform1i(gl, shaderProgram.useLightingUniform, 1); \/\/ 1 = true\n  do Webgl.uniform3f(gl, shaderProgram.ambientColorUniform, 0.4, 0.4, 0.4);\n  do Webgl.uniform3f(gl, shaderProgram.lightingDirectionUniform, 0.85, 0.8, 0.75);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.positions);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexPositionAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ARRAY_BUFFER(gl), squareVertexPositionBuffer.normals);\n  do Webgl.vertexAttribPointer(gl, shaderProgram.vertexNormalAttribute, squareVertexPositionBuffer.itemSize, Webgl.FLOAT(gl), false, 0, 0);\n  do Webgl.bindBuffer(gl, Webgl.ELEMENT_ARRAY_BUFFER(gl), squareVertexPositionBuffer.indexs);\n\n  mvMatrix = Stack.update_and_push(mvMatrix, (o, n -> mat4.translate(o, vec3.from_public(scene), n))) ;\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  mvMatrix = Stack.update_and_push(Stack.pop(mvMatrix), (o, n -> mat4.translate(o, vec3.from_public((2.0, 2.0, 0.0)), n)));\n  do setMatrixUniforms(gl, shaderProgram, pMatrix, Stack.peek(mvMatrix));\n  do Webgl.drawElements(gl, Webgl.TRIANGLES(gl), 36, Webgl.UNSIGNED_SHORT(gl), 0);\n  *\/\n  do List.iter(((pos, object) -> display(eng, pMatrix, mvMatrix, pos, object)), scene) ;\n  void\n;\n\ndrawScene_and_register(eng, get_scene : (->vec3), squareVertexPositionBuffer) =\n  viewbox = setup_boxes(eng) ;\n  rec aux(eng, squareVertexPositionBuffer) =\n    gl = eng.context;\n    scene = [ (get_scene(), Cube.create(gl)) ] ;\n    do Webgl.clear(gl, Webgl.GLbitfield_OR(Webgl.COLOR_BUFFER_BIT(gl), Webgl.DEPTH_BUFFER_BIT(gl)));\n    do drawScene_for_a_viewport(eng, viewbox._YX, (0.0, 0.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._YZ, (-15.0, 0.0, 0.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._ZX, (0.0, -15.0, 0.0), (0.0, 0.0, 1.0), scene, squareVertexPositionBuffer);\n    do drawScene_for_a_viewport(eng, viewbox._3D, (10.0, 5.0, 15.0), (0.0, 1.0, 0.0), scene, squareVertexPositionBuffer);\n    do RequestAnimationFrame.request((_ -> aux(eng, squareVertexPositionBuffer)), #{id_canvas_area});\n    void\n    ;\n  aux(eng, squareVertexPositionBuffer) \n;\n\ninitGL(canvas_sel, width, height) : void =\n  match Webgl.getContext(Dom.of_selection(canvas_sel), \"experimental-webgl\") with\n  | { some=context } ->\n    gl = context;\n    eng : engine = \n      start = @openrecord({ context=gl; canvas={ selector=canvas_sel; ~width; ~height } });\n      start = { start with shaderProgram=initShaders(gl) };\n      { start with static_buffers.repcoords=\n        { x=initLineXBuffers(gl, {x}); y=initLineXBuffers(gl, {y}); z=initLineXBuffers(gl, {z}) } };\n    squareVertexPositionBuffer = initBuffers(gl);\n    \/\/Clear screen and make everything light gray\n    do Webgl.clearColor(gl, 0.9, 0.9, 0.9, 1.0);\n    \/\/we should do depth testing so that things drawn behind other\n    \/\/things should be hidden by the things in front of them).\n    do Webgl.clearDepth(gl, 1.0);\n    do Webgl.enable(gl, Webgl.DEPTH_TEST(gl));\n    do Webgl.depthFunc(gl, Webgl.LEQUAL(gl));\n    do drawScene_and_register(eng, (-> (0.0, -4.0, 0.0)), squareVertexPositionBuffer);\n    void\n  | { none } -> error(\"no context found\")\n  end ;\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"67c6c2c05f6aa209591ea5105978a78122b9d951","subject":"msg to apply patch on server","message":"msg to apply patch on server\n","repos":"MLstate\/webgldemo","old_file":"src\/modeler\/sceneServer.opa","new_file":"src\/modeler\/sceneServer.opa","new_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = \n  { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int }\n\/ { apply_patch; patch: Scene.patch; address: string };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state }\n    | { apply_patch; ~patch; ~address } ->\n      state = `Central.Modelers`.apply_patch(state, address, patch);\n      { set=state }\n    end;\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","old_contents":"\ntype Modeler.Shared.modeler = {\n  scene: Scene.scene;\n  address: string;\n  clients: list(channel(Central.Modelers.sync.message))\n} ;\n\n@server SHF : Fresh.next(int) = Fresh.server((i -> i : int));\n\n@server `Modeler.Shared` = {{\n\n  empty(server_id, address) : Modeler.Shared.modeler = \n    { scene=Scene.empty(SHF, server_id); ~address; clients=List.empty };\n\n  add_client(modsha, client) : Modeler.Shared.modeler =\n    do Session.send(client, { load=modsha.scene });\n    { modsha with clients=List.cons(client, modsha.clients) };\n\n  apply_patch(modsha, patch) : Modeler.Shared.modeler = \n    do Log.info(\"Modeler.Shared\", \"a patch as been apply for address '{modsha.address}'\");\n    { modsha with scene=Scene.apply_patch(modsha.scene, patch) };\n\n}}\n\n\ntype Central.Modelers.state = { my_id: int; files: stringmap(Modeler.Shared.modeler) };\ntype Central.Modelers.message = { register; scene_url: string; sync_channel: channel(Central.Modelers.sync.message); client_id: int };\n\ntype Central.Modelers.sync.message = { load: Scene.scene };\n\n@server `Central.Modelers` = {{\n  empty() : Central.Modelers.state = { my_id=SHF(); files=StringMap.empty };\n\n  find_file(state, address) = StringMap.get(address, state.files);\n\n  get_file(state, address) : Modeler.Shared.modeler = match find_file(state, address) with\n    | {some=hit} -> hit\n    | {none} ->\n      scene = Scene.empty(SHF, state.my_id);\n      scene = Scene.add_object(scene, Scene.cube(scene, (0.0, 0.0, -3.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (3.0, 0.0, 0.0)));\n      scene = Scene.add_object(scene, Scene.cube(scene, (6.0, 0.0, 0.0)));\n      { `Modeler.Shared`.empty(state.my_id, address) with ~scene }\n    end;\n\n  update_file(state, address, f) : Central.Modelers.state =\n    modsha = get_file(state, address);\n    { state with files=StringMap.add(address, f(modsha), state.files) };\n\n  apply_patch(state, address, patch) : Central.Modelers.state =\n    f(modsha) = `Modeler.Shared`.apply_patch(modsha, patch);\n    update_file(state, address, f);\n\n}}\n\n@server central_modelers : channel(Central.Modelers.message) =\n  on_message(state : Central.Modelers.state, message) = match message with\n    | { register; ~scene_url; ~sync_channel; ~client_id } ->\n      do Log.info(\"CM\", \"register for url '{scene_url}'\");\n      state = \n        up(modsha) = `Modeler.Shared`.add_client(modsha, sync_channel);\n        `Central.Modelers`.update_file(state, scene_url, up);\n      { set=state };\n  Session.make_dynamic(`Central.Modelers`.empty(), on_message);\n","returncode":0,"stderr":"","license":"agpl-3.0","lang":"Opa"}
{"commit":"cdf3fb6c54b0afc0cfcbb745358e01afd04fab21","subject":"move post_form() into scope of newpost()","message":"move post_form() into scope of newpost()\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/admin.opa","new_file":"src\/admin.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"996e6d0b72ed4f11b136524d32f50e885e0b06a9","subject":"wibbles","message":"wibbles\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/native.opa","new_file":"src\/native.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"4abd9b17c8242fc8522ce96b7bd9e1da7178d19a","subject":"manage fixed 2","message":"manage fixed 2\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/view\/user.opa","new_file":"src\/view\/user.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"a725424dd763049650cbb7e4e44edfd9ed23c60b","subject":"* tests\/opa\/parsing\/parser.opa: support","message":"* tests\/opa\/parsing\/parser.opa: support\n","repos":"Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,rpau\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,rpau\/pfff,egonSchiele\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff","old_file":"tests\/opa\/parsing\/parser.opa","new_file":"tests\/opa\/parsing\/parser.opa","new_contents":"\n  char = parser\n  | x = { Rule.alphanum_char } -> x\n  | x = \"-\" -> x\n  \/\/ was \"{\" but bad I think\n  | x = \"\\{\" -> x\n  | x = \"}\" -> x\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/parsing\/parser.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"06d73b6a6c3ca6a00c89763dc33f497d2645b8fd","subject":"new rss","message":"new rss\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/view\/page.opa","new_file":"src\/view\/page.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"a31aacb2c768b6f6b4bafe22f6f164f8fa41295f","subject":"broadcast entry changes to all clients","message":"broadcast entry changes to all clients\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"8a222d8087bda630408015efc079a00aa1ee72c6","subject":"* tests\/opa\/parsing\/comments.opa: fixed","message":"* tests\/opa\/parsing\/comments.opa: fixed\n","repos":"rpau\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff","old_file":"tests\/opa\/parsing\/comments.opa","new_file":"tests\/opa\/parsing\/comments.opa","new_contents":"\/\/ one line comment\n\/*\n  multi line comment\n*\/\n\n\/**\n * I assure you, this function does lots of useful things!\n * @return 0\n**\/\nzero() = 0\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/parsing\/comments.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"a2ee8c57ed17eca9125cb3f47675e06905fcf465","subject":"* tests\/opa\/visual\/local.opa: support","message":"* tests\/opa\/visual\/local.opa: support\n","repos":"rpau\/pfff,rpau\/pfff,mutantzombie\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,rpau\/pfff,rpau\/pfff","old_file":"tests\/opa\/visual\/local.opa","new_file":"tests\/opa\/visual\/local.opa","new_contents":"function foo() {\n   x = 1\n   y = 2\n   x + y\n}\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/visual\/local.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"c479281ba8b666cf6fba5e9c8a8dafc5fc616270","subject":"events fix","message":"events fix\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/model\/event.opa","new_file":"src\/model\/event.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"0a226b2e666b823bd5ad6c26870bbc56bcf24f62","subject":"change network to only run upskirt once, and broadcast that change to all clients","message":"change network to only run upskirt once, and broadcast that change to all clients\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"1a1f1da2273c1a0346f43a42d81d58d68acb74e3","subject":"events fix","message":"events fix\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/model\/event.opa","new_file":"src\/model\/event.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"7eb54888878d59c3703220000fb4f01e218eca2c","subject":"mod tool fixed","message":"mod tool fixed\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/view\/user.opa","new_file":"src\/view\/user.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"ea9fbf2d2923f641fd1642a6573b26e731a254de","subject":"do not rehighlight page twice","message":"do not rehighlight page twice\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/admin.opa","new_file":"src\/admin.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"fc59a399442fd28fd8a3977806f26da2f4fa4838","subject":"make login page use new layout","message":"make login page use new layout\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/admin.opa","new_file":"src\/admin.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"4e323e6deb14c40299b8987760445fc26f894646","subject":"address changed","message":"address changed\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/model\/data.opa","new_file":"src\/model\/data.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"797d41ed12a6b8d14fb3b102ad0eb51ec316e945","subject":"* tests\/opa\/visual\/xml.opa: support","message":"* tests\/opa\/visual\/xml.opa: support\n","repos":"egonSchiele\/pfff,mutantzombie\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,rpau\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,mutantzombie\/pfff,Hyunha\/pfff,Hyunha\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,Hyunha\/pfff,rpau\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,egonSchiele\/pfff","old_file":"tests\/opa\/visual\/xml.opa","new_file":"tests\/opa\/visual\/xml.opa","new_contents":"x = \n <>\n <h1>this is a title<\/h1>\n <div class=\"foo\">this is some div<\/div>\n <span id=\"foo\" another=\"bar\">this is some span<\/span>\n <a href=\"a\/b\/foo.html\" >text<\/a>\n <\/>\n\nfunction foo() {\n  2\n}\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/visual\/xml.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"a951c0b56b9430b80f6350da6a73168759f74ae0","subject":"* tests\/opa\/parsing\/grouping.opa: support","message":"* tests\/opa\/parsing\/grouping.opa: support\n","repos":"juergenhoetzel\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,rpau\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,rpau\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,rpau\/pfff,Hyunha\/pfff","old_file":"tests\/opa\/parsing\/grouping.opa","new_file":"tests\/opa\/parsing\/grouping.opa","new_contents":"x = (1 + 2) * 3\nx =\n  if i_like_pascal then begin\n    \"begin end rocks\"\n  end else (\n    \"i like parens better\"\n  )\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/parsing\/grouping.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"c38aa099064f55001642924af4970818ba4d3130","subject":"mod fixed 2","message":"mod fixed 2\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/view\/user.opa","new_file":"src\/view\/user.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"d4ad4cfe280e96cc39c79309def9b10e25aa1db7","subject":"contacts fix","message":"contacts fix\n","repos":"arithehun\/frc,arithehun\/frc,arithehun\/frc,arithehun\/frc","old_file":"src\/view\/user.opa","new_file":"src\/view\/user.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/arithehun\/frc.git\/'\n","license":"mit","lang":"Opa"}
{"commit":"e8f7f3cba3164642501a8125447f80634eeefd74","subject":"wobble","message":"wobble\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/post.opa","new_file":"src\/post.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"c82a7fd387c066322d80bf8fb1956997bd36586d","subject":"shorten the input textbox a wee bit","message":"shorten the input textbox a wee bit\n","repos":"thoughtpolice\/opaque,thoughtpolice\/opaque","old_file":"src\/main.opa","new_file":"src\/main.opa","new_contents":"","old_contents":"","returncode":128,"stderr":"remote: Support for password authentication was removed on August 13, 2021.\nremote: Please see https:\/\/docs.github.com\/en\/get-started\/getting-started-with-git\/about-remote-repositories#cloning-with-https-urls for information on currently recommended modes of authentication.\nfatal: Authentication failed for 'https:\/\/github.com\/thoughtpolice\/opaque.git\/'\n","license":"agpl-3.0","lang":"Opa"}
{"commit":"1ddc94d663796fd12bc9e04fdcbe2090b97a1cd2","subject":"added example in Opa language","message":"added example in Opa language\n","repos":"florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world,florianbussmann\/hello-world","old_file":"hello-opa\/hello-world.opa","new_file":"hello-opa\/hello-world.opa","new_contents":"Server.start(Server.http, \n    { title: \"Hello, World.\", \n      page: function() { <>Hello, World.<\/> } })","old_contents":"","returncode":1,"stderr":"error: pathspec 'hello-opa\/hello-world.opa' did not match any file(s) known to git\n","license":"mit","lang":"Opa"}
{"commit":"39c632f27fae9b12f39d16f5b09429ffa760da27","subject":"* tests\/opa\/parsing\/bindings_line.opa: support","message":"* tests\/opa\/parsing\/bindings_line.opa: support\n","repos":"juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,rpau\/pfff,Hyunha\/pfff,rpau\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,Hyunha\/pfff,rpau\/pfff,egonSchiele\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,Hyunha\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,egonSchiele\/pfff,rpau\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,rpau\/pfff","old_file":"tests\/opa\/parsing\/bindings_line.opa","new_file":"tests\/opa\/parsing\/bindings_line.opa","new_contents":"x = y = 2 y\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/parsing\/bindings_line.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}
{"commit":"beb143d4223707747fc9ab58d6a7ca4457be3423","subject":"* tests\/opa\/parsing\/integers.opa: new file","message":"* tests\/opa\/parsing\/integers.opa: new file\n","repos":"Hyunha\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,rpau\/pfff,rpau\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,egonSchiele\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,egonSchiele\/pfff,Hyunha\/pfff,rpau\/pfff,rpau\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,egonSchiele\/pfff,Hyunha\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,mutantzombie\/pfff,Hyunha\/pfff,egonSchiele\/pfff,Hyunha\/pfff,rpau\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,Hyunha\/pfff,juergenhoetzel\/pfff,egonSchiele\/pfff,mutantzombie\/pfff,rpau\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff,juergenhoetzel\/pfff,rpau\/pfff,mutantzombie\/pfff,juergenhoetzel\/pfff","old_file":"tests\/opa\/parsing\/integers.opa","new_file":"tests\/opa\/parsing\/integers.opa","new_contents":"x = 10 \/\/ 10 in base 10\nx = 0xA \/\/ 10 in base 16, any case works (0Xa, 0XA, Oxa)\nx = 0o12 \/\/ 10 in base 8\nx = 0b1010 \/\/ 10 in base 2\n","old_contents":"","returncode":1,"stderr":"error: pathspec 'tests\/opa\/parsing\/integers.opa' did not match any file(s) known to git\n","license":"lgpl-2.1","lang":"Opa"}