text: ace.define("ace/ext/code_lens",["require","exports","module","ace/line_widgets","ace/lib/event","ace/lib/lang","ace/lib/dom","ace/editor","ace/config"], function(require, exports, module) {
  "use strict";
  var LineWidgets = require("../line_widgets").LineWidgets;
  var event = require("../lib/event");
  var lang = require("../lib/lang");
  var dom = require("../lib/dom");
  
  function clearLensElements(renderer) {
      var textLayer = renderer.$textLayer;
      var lensElements = textLayer.$lenses;
      if (lensElements)
          lensElements.forEach(function(el) {el.remove(); });
      textLayer.$lenses = null;
  }
  
  function renderWidgets(changes, renderer) {
      var changed = changes & renderer.CHANGE_LINES
          || changes & renderer.CHANGE_FULL
          || changes & renderer.CHANGE_SCROLL
          || changes & renderer.CHANGE_TEXT;
      if (!changed)
          return;
  
      var session = renderer.session;
      var lineWidgets = renderer.session.lineWidgets;
      var textLayer = renderer.$textLayer;
      var lensElements = textLayer.$lenses;
      if (!lineWidgets) {
          if (lensElements)
              clearLensElements(renderer);
          return;
      }
  
      var textCells = renderer.$textLayer.$lines.cells;
      var config = renderer.layerConfig;
      var padding = renderer.$padding;
  
      if (!lensElements)
          lensElements = textLayer.$lenses = [];
  
  
      var index = 0;
      for (var i = 0; i < textCells.length; i++) {
          var row = textCells[i].row;
          var widget = lineWidgets[row];
          var lenses = widget && widget.lenses;
  
          if (!lenses || !lenses.length) continue;
  
          var lensContainer = lensElements[index];
          if (!lensContainer) {
              lensContainer = lensElements[index]
                  = dom.buildDom(["div", {class: "ace_codeLens"}], renderer.container);
          }
          lensContainer.style.height = config.lineHeight + "px";
          index++;
  
          for (var j = 0; j < lenses.length; j++) {
              var el = lensContainer.childNodes[2 * j];
              if (!el) {
                  if (j != 0) lensContainer.appendChild(dom.createTextNode("\xa0|\xa0"));
                  el = dom.buildDom(["a"], lensContainer);
              }
              el.textContent = lenses[j].title;
              el.lensCommand = lenses[j];
          }
          while (lensContainer.childNodes.length > 2 * j - 1)
              lensContainer.lastChild.remove();
  
          var top = renderer.$cursorLayer.getPixelPosition({
              row: row,
              column: 0
          }, true).top - config.lineHeight * widget.rowsAbove - config.offset;
          lensContainer.style.top = top + "px";
  
          var left = renderer.gutterWidth;
          var indent = session.getLine(row).search(/\S|$/);
          if (indent == -1)
              indent = 0;
          left += indent * config.characterWidth;
          left -= renderer.scrollLeft;
          lensContainer.style.paddingLeft = padding + left + "px";
      }
      while (index < lensElements.length)
          lensElements.pop().remove();
  }
  
  function clearCodeLensWidgets(session) {
      if (!session.lineWidgets) return;
      var widgetManager = session.widgetManager;
      session.lineWidgets.forEach(function(widget) {
          if (widget && widget.lenses)
              widgetManager.removeLineWidget(widget);
      });
  }
  
  exports.setLenses = function(session, lenses) {
      var firstRow = Number.MAX_VALUE;
  
      clearCodeLensWidgets(session);
      lenses && lenses.forEach(function(lens) {
          var row = lens.start.row;
          var column = lens.start.column;
          var widget = session.lineWidgets && session.lineWidgets[row];
          if (!widget || !widget.lenses) {
              widget = session.widgetManager.$registerLineWidget({
                  rowCount: 1,
                  rowsAbove: 1,
                  row: row,
                  column: column,
                  lenses: []
              });
          }
          widget.lenses.push(lens.command);
          if (row < firstRow)
              firstRow = row;
      });
      session._emit("changeFold", {data: {start: {row: firstRow}}});
  };
  
  function attachToEditor(editor) {
      editor.codeLensProviders = [];
      editor.renderer.on("afterRender", renderWidgets);
      if (!editor.$codeLensClickHandler) {
          editor.$codeLensClickHandler = function(e) {
              var command = e.target.lensCommand;
              if (command)
                  editor.execCommand(command.id, command.arguments);
          };
          event.addListener(editor.container, "click", editor.$codeLensClickHandler, editor);
      }
      editor.$updateLenses = function() {
          var session = editor.session;
          if (!session) return;
  
          if (!session.widgetManager) {
              session.widgetManager = new LineWidgets(session);
              session.widgetManager.attach(editor);
          }
  
          var providersToWaitNum = editor.codeLensProviders.length;
          var lenses = [];
          editor.codeLensProviders.forEach(function(provider) {
              provider.provideCodeLenses(session, function(err, payload) {
                  if (err) return;
                  payload.forEach(function(lens) {
                      lenses.push(lens);
                  });
                  providersToWaitNum--;
                  if (providersToWaitNum == 0) {
                      applyLenses();
                  }
              });
          });
  
          function applyLenses() {
              var cursor = session.selection.cursor;
              var oldRow = session.documentToScreenRow(cursor);
              exports.setLenses(session, lenses);
  
              var lastDelta = session.$undoManager && session.$undoManager.$lastDelta;
              if (lastDelta && lastDelta.action == "remove" && lastDelta.lines.length > 1)
                  return;
              var row = session.documentToScreenRow(cursor);
              var lineHeight = editor.renderer.layerConfig.lineHeight;
              var top = session.getScrollTop() + (row - oldRow) * lineHeight;
              session.setScrollTop(top);
          }
      };
      var updateLenses = lang.delayedCall(editor.$updateLenses);
      editor.$updateLensesOnInput = function() {
          updateLenses.delay(250);
      };
      editor.on("input", editor.$updateLensesOnInput);
  }
  
  function detachFromEditor(editor) {
      editor.off("input", editor.$updateLensesOnInput);
      editor.renderer.off("afterRender", renderWidgets);
      if (editor.$codeLensClickHandler)
          editor.container.removeEventListener("click", editor.$codeLensClickHandler);
  }
  
  exports.registerCodeLensProvider = function(editor, codeLensProvider) {
      editor.setOption("enableCodeLens", true);
      editor.codeLensProviders.push(codeLensProvider);
      editor.$updateLensesOnInput();
  };
  
  exports.clear = function(session) {
      exports.setLenses(session, null);
  };
  
  var Editor = require("../editor").Editor;
  require("../config").defineOptions(Editor.prototype, "editor", {
      enableCodeLens: {
          set: function(val) {
              if (val) {
                  attachToEditor(this);
              } else {
                  detachFromEditor(this);
              }
          }
      }
  });
  
  dom.importCssString("\
  .ace_codeLens {\
      position: absolute;\
      color: #aaa;\
      font-size: 88%;\
      background: inherit;\
      width: 100%;\
      display: flex;\
      align-items: flex-end;\
      pointer-events: none;\
  }\
  .ace_codeLens > a {\
      cursor: pointer;\
      pointer-events: auto;\
  }\
  .ace_codeLens > a:hover {\
      color: #0000ff;\
      text-decoration: underline;\
  }\
  .ace_dark > .ace_codeLens > a:hover {\
      color: #4e94ce;\
  }\
  ", "");
  
  });                (function() {
                      ace.require(["ace/ext/code_lens"], function(m) {
                          if (typeof module == "object" && typeof exports == "object" && module) {
                              module.exports = m;
                          }
                      });
                  })();
              