text: 'use strict';
  
  var csrf;
  var suburl;
  
  function initCommentPreviewTab($form) {
      var $tabMenu = $form.find('.tabular.menu');
      $tabMenu.find('.item').tab();
      $tabMenu.find('.item[data-tab="' + $tabMenu.data('preview') + '"]').click(function () {
          var $this = $(this);
          $.post($this.data('url'), {
                  "_csrf": csrf,
                  "mode": "gfm",
                  "context": $this.data('context'),
                  "text": $form.find('.tab.segment[data-tab="' + $tabMenu.data('write') + '"] textarea').val()
              },
              function (data) {
                  var $previewPanel = $form.find('.tab.segment[data-tab="' + $tabMenu.data('preview') + '"]');
                  $previewPanel.html(data);
                  emojify.run($previewPanel[0]);
                  $('pre code', $previewPanel[0]).each(function (i, block) {
                      hljs.highlightBlock(block);
                  });
              }
          );
      });
  
      buttonsClickOnEnter();
  }
  
  var previewFileModes;
  
  function initEditPreviewTab($form) {
      var $tabMenu = $form.find('.tabular.menu');
      $tabMenu.find('.item').tab();
      var $previewTab = $tabMenu.find('.item[data-tab="' + $tabMenu.data('preview') + '"]');
      if ($previewTab.length) {
          previewFileModes = $previewTab.data('preview-file-modes').split(',');
          $previewTab.click(function () {
              var $this = $(this);
              $.post($this.data('url'), {
                      "_csrf": csrf,
                      "mode": "gfm",
                      "context": $this.data('context'),
                      "text": $form.find('.tab.segment[data-tab="' + $tabMenu.data('write') + '"] textarea').val()
                  },
                  function (data) {
                      var $previewPanel = $form.find('.tab.segment[data-tab="' + $tabMenu.data('preview') + '"]');
                      $previewPanel.html(data);
                      emojify.run($previewPanel[0]);
                      $('pre code', $previewPanel[0]).each(function (i, block) {
                          hljs.highlightBlock(block);
                      });
                  }
              );
          });
      }
  }
  
  function initEditDiffTab($form) {
      var $tabMenu = $form.find('.tabular.menu');
      $tabMenu.find('.item').tab();
      $tabMenu.find('.item[data-tab="' + $tabMenu.data('diff') + '"]').click(function () {
          var $this = $(this);
          $.post($this.data('url'), {
                  "_csrf": csrf,
                  "context": $this.data('context'),
                  "content": $form.find('.tab.segment[data-tab="' + $tabMenu.data('write') + '"] textarea').val()
              },
              function (data) {
                  var $diffPreviewPanel = $form.find('.tab.segment[data-tab="' + $tabMenu.data('diff') + '"]');
                  $diffPreviewPanel.html(data);
                  emojify.run($diffPreviewPanel[0]);
              }
          );
      });
  }
  
  
  function initEditForm() {
      if ($('.edit.form').length == 0) {
          return;
      }
  
      initEditPreviewTab($('.edit.form'));
      initEditDiffTab($('.edit.form'));
  }
  
  
  function initCommentForm() {
      if ($('.comment.form').length == 0) {
          return
      }
  
      initCommentPreviewTab($('.comment.form'));
  
      // Labels
      var $list = $('.ui.labels.list');
      var $noSelect = $list.find('.no-select');
      var $labelMenu = $('.select-label .menu');
      var hasLabelUpdateAction = $labelMenu.data('action') == 'update';
  
      function updateIssueMeta(url, action, id) {
          $.post(url, {
              "_csrf": csrf,
              "action": action,
              "id": id
          });
      }
  
      $labelMenu.find('.item:not(.no-select)').click(function () {
          if ($(this).hasClass('checked')) {
              $(this).removeClass('checked');
              $(this).find('.octicon').removeClass('octicon-check');
              if (hasLabelUpdateAction) {
                  updateIssueMeta($labelMenu.data('update-url'), "detach", $(this).data('id'));
              }
          } else {
              $(this).addClass('checked');
              $(this).find('.octicon').addClass('octicon-check');
              if (hasLabelUpdateAction) {
                  updateIssueMeta($labelMenu.data('update-url'), "attach", $(this).data('id'));
              }
          }
  
          var labelIds = "";
          $(this).parent().find('.item').each(function () {
              if ($(this).hasClass('checked')) {
                  labelIds += $(this).data('id') + ",";
                  $($(this).data('id-selector')).removeClass('hide');
              } else {
                  $($(this).data('id-selector')).addClass('hide');
              }
          });
          if (labelIds.length == 0) {
              $noSelect.removeClass('hide');
          } else {
              $noSelect.addClass('hide');
          }
          $($(this).parent().data('id')).val(labelIds);
          return false;
      });
      $labelMenu.find('.no-select.item').click(function () {
          if (hasLabelUpdateAction) {
              updateIssueMeta($labelMenu.data('update-url'), "clear", '');
          }
  
          $(this).parent().find('.item').each(function () {
              $(this).removeClass('checked');
              $(this).find('.octicon').removeClass('octicon-check');
          });
  
          $list.find('.item').each(function () {
              $(this).addClass('hide');
          });
          $noSelect.removeClass('hide');
          $($(this).parent().data('id')).val('');
      });
  
      function selectItem(select_id, input_id) {
          var $menu = $(select_id + ' .menu');
          var $list = $('.ui' + select_id + '.list');
          var hasUpdateAction = $menu.data('action') == 'update';
  
          $menu.find('.item:not(.no-select)').click(function () {
              $(this).parent().find('.item').each(function () {
                  $(this).removeClass('selected active')
              });
  
              $(this).addClass('selected active');
              if (hasUpdateAction) {
                  updateIssueMeta($menu.data('update-url'), '', $(this).data('id'));
              }
              switch (input_id) {
                  case '#milestone_id':
                      $list.find('.selected').html('<a class="item" href=' + $(this).data('href') + '>' +
                          $(this).text() + '</a>');
                      break;
                  case '#assignee_id':
                      $list.find('.selected').html('<a class="item" href=' + $(this).data('href') + '>' +
                          '<img class="ui avatar image" src=' + $(this).data('avatar') + '>' +
                          $(this).text() + '</a>');
              }
              $('.ui' + select_id + '.list .no-select').addClass('hide');
              $(input_id).val($(this).data('id'));
          });
          $menu.find('.no-select.item').click(function () {
              $(this).parent().find('.item:not(.no-select)').each(function () {
                  $(this).removeClass('selected active')
              });
  
              if (hasUpdateAction) {
                  updateIssueMeta($menu.data('update-url'), '', '');
              }
  
              $list.find('.selected').html('');
              $list.find('.no-select').removeClass('hide');
              $(input_id).val('');
          });
      }
  
      // Milestone and assignee
      selectItem('.select-milestone', '#milestone_id');
      selectItem('.select-assignee', '#assignee_id');
  }
  
  function initInstall() {
      if ($('.install').length == 0) {
          return;
      }
  
      // Database type change detection.
      $("#db_type").change(function () {
          var sqliteDefault = 'data/gogs.db';
          var tidbDefault = 'data/gogs_tidb';
  
          var dbType = $(this).val();
          if (dbType === "SQLite3" || dbType === "TiDB") {
              $('#sql_settings').hide();
              $('#pgsql_settings').hide();
              $('#sqlite_settings').show();
  
              if (dbType === "SQLite3" && $('#db_path').val() == tidbDefault) {
                  $('#db_path').val(sqliteDefault);
              } else if (dbType === "TiDB" && $('#db_path').val() == sqliteDefault) {
                  $('#db_path').val(tidbDefault);
              }
              return;
          }
  
          var mysqlDefault = '127.0.0.1:3306';
          var postgresDefault = '127.0.0.1:5432';
  
          $('#sqlite_settings').hide();
          $('#sql_settings').show();
          if (dbType === "PostgreSQL") {
              $('#pgsql_settings').show();
              if ($('#db_host').val() == mysqlDefault) {
                  $('#db_host').val(postgresDefault);
              }
          } else {
              $('#pgsql_settings').hide();
              if ($('#db_host').val() == postgresDefault) {
                  $('#db_host').val(mysqlDefault);
              }
          }
      });
  
      // TODO: better handling of exclusive relations.
      $('#offline-mode input').change(function () {
          if ($(this).is(':checked')) {
              $('#disable-gravatar').checkbox('check');
              $('#federated-avatar-lookup').checkbox('uncheck');
          }
      });
      $('#disable-gravatar input').change(function () {
          if ($(this).is(':checked')) {
              $('#federated-avatar-lookup').checkbox('uncheck');
          } else {
              $('#offline-mode').checkbox('uncheck');
          }
      });
      $('#federated-avatar-lookup input').change(function () {
          if ($(this).is(':checked')) {
              $('#disable-gravatar').checkbox('uncheck');
              $('#offline-mode').checkbox('uncheck');
          }
      });
      $('#disable-registration input').change(function () {
          if ($(this).is(':checked')) {
              $('#enable-captcha').checkbox('uncheck');
          }
      });
      $('#enable-captcha input').change(function () {
          if ($(this).is(':checked')) {
              $('#disable-registration').checkbox('uncheck');
          }
      });
  }
  
  function initRepository() {
      if ($('.repository').length == 0) {
          return;
      }
  
      function initFilterSearchDropdown(selector) {
          var $dropdown = $(selector);
          $dropdown.dropdown({
              fullTextSearch: true,
              onChange: function (text, value, $choice) {
                  window.location.href = $choice.data('url');
                  console.log($choice.data('url'))
              },
              message: {noResults: $dropdown.data('no-results')}
          });
      }
  
      // File list and commits
      if ($('.repository.file.list').length > 0 ||
          ('.repository.commits').length > 0) {
          initFilterSearchDropdown('.choose.reference .dropdown');
  
          $('.reference.column').click(function () {
              $('.choose.reference .scrolling.menu').css('display', 'none');
              $('.choose.reference .text').removeClass('black');
              $($(this).data('target')).css('display', 'block');
              $(this).find('.text').addClass('black');
              return false;
          });
      }
  
      // Wiki
      if ($('.repository.wiki.view').length > 0) {
          initFilterSearchDropdown('.choose.page .dropdown');
      }
  
      // Options
      if ($('.repository.settings.options').length > 0) {
          $('#repo_name').keyup(function () {
              var $prompt = $('#repo-name-change-prompt');
              if ($(this).val().toString().toLowerCase() != $(this).data('repo-name').toString().toLowerCase()) {
                  $prompt.show();
              } else {
                  $prompt.hide();
              }
          });
  
          // Enable or select internal/external wiki system and issue tracker.
          $('.enable-system').change(function () {
              if (this.checked) {
                  $($(this).data('target')).removeClass('disabled');
              } else {
                  $($(this).data('target')).addClass('disabled');
              }
          });
          $('.enable-system-radio').change(function () {
              if (this.value == 'false') {
                  $($(this).data('target')).addClass('disabled');
              } else if (this.value == 'true') {
                  $($(this).data('target')).removeClass('disabled');
              }
          });
      }
  
      // Labels
      if ($('.repository.labels').length > 0) {
          // Create label
          var $newLabelPanel = $('.new-label.segment');
          $('.new-label.button').click(function () {
              $newLabelPanel.show();
          });
          $('.new-label.segment .cancel').click(function () {
              $newLabelPanel.hide();
          });
  
          $('.color-picker').each(function () {
              $(this).minicolors();
          });
          $('.precolors .color').click(function () {
              var color_hex = $(this).data('color-hex');
              $('.color-picker').val(color_hex);
              $('.minicolors-swatch-color').css("background-color", color_hex);
          });
          $('.edit-label-button').click(function () {
              $('#label-modal-id').val($(this).data('id'));
              $('.edit-label .new-label-input').val($(this).data('title'));
              $('.edit-label .color-picker').val($(this).data('color'));
              $('.minicolors-swatch-color').css("background-color", $(this).data('color'));
              $('.edit-label.modal').modal({
                  onApprove: function () {
                      $('.edit-label.form').submit();
                  }
              }).modal('show');
              return false;
          });
      }
  
      // Milestones
      if ($('.repository.milestones').length > 0) {
  
      }
      if ($('.repository.new.milestone').length > 0) {
          var $datepicker = $('.milestone.datepicker');
          $datepicker.datetimepicker({
              lang: $datepicker.data('lang'),
              inline: true,
              timepicker: false,
              startDate: $datepicker.data('start-date'),
              formatDate: 'Y-m-d',
              onSelectDate: function (ct) {
                  $('#deadline').val(ct.dateFormat('Y-m-d'));
              }
          });
          $('#clear-date').click(function () {
              $('#deadline').val('');
              return false;
          });
      }
  
      // Issues
      if ($('.repository.view.issue').length > 0) {
          // Edit issue title
          var $issueTitle = $('#issue-title');
          var $editInput = $('#edit-title-input input');
          var editTitleToggle = function () {
              $issueTitle.toggle();
              $('.not-in-edit').toggle();
              $('#edit-title-input').toggle();
              $('.in-edit').toggle();
              $editInput.focus();
              return false;
          };
          $('#edit-title').click(editTitleToggle);
          $('#cancel-edit-title').click(editTitleToggle);
          $('#save-edit-title').click(editTitleToggle).click(function () {
              if ($editInput.val().length == 0 ||
                  $editInput.val() == $issueTitle.text()) {
                  $editInput.val($issueTitle.text());
                  return false;
              }
  
              $.post($(this).data('update-url'), {
                      "_csrf": csrf,
                      "title": $editInput.val()
                  },
                  function (data) {
                      $editInput.val(data.title);
                      $issueTitle.text(data.title);
                  });
              return false;
          });
  
          // Edit issue or comment content
          $('.edit-content').click(function () {
              var $segment = $(this).parent().parent().parent().next();
              var $editContentZone = $segment.find('.edit-content-zone');
              var $renderContent = $segment.find('.render-content');
              var $rawContent = $segment.find('.raw-content');
              var $textarea;
  
              // Setup new form
              if ($editContentZone.html().length == 0) {
                  $editContentZone.html($('#edit-content-form').html());
                  $textarea = $segment.find('textarea');
  
                  // Give new write/preview data-tab name to distinguish from others
                  var $editContentForm = $editContentZone.find('.ui.comment.form');
                  var $tabMenu = $editContentForm.find('.tabular.menu');
                  $tabMenu.attr('data-write', $editContentZone.data('write'));
                  $tabMenu.attr('data-preview', $editContentZone.data('preview'));
                  $tabMenu.find('.write.item').attr('data-tab', $editContentZone.data('write'));
                  $tabMenu.find('.preview.item').attr('data-tab', $editContentZone.data('preview'));
                  $editContentForm.find('.write.segment').attr('data-tab', $editContentZone.data('write'));
                  $editContentForm.find('.preview.segment').attr('data-tab', $editContentZone.data('preview'));
  
                  initCommentPreviewTab($editContentForm);
  
                  $editContentZone.find('.cancel.button').click(function () {
                      $renderContent.show();
                      $editContentZone.hide();
                  });
                  $editContentZone.find('.save.button').click(function () {
                      $renderContent.show();
                      $editContentZone.hide();
  
                      $.post($editContentZone.data('update-url'), {
                              "_csrf": csrf,
                              "content": $textarea.val(),
                              "context": $editContentZone.data('context')
                          },
                          function (data) {
                              if (data.length == 0) {
                                  $renderContent.html($('#no-content').html());
                              } else {
                                  $renderContent.html(data.content);
                                  emojify.run($renderContent[0]);
                                  $('pre code', $renderContent[0]).each(function (i, block) {
                                      hljs.highlightBlock(block);
                                  });
                              }
                          });
                  });
              } else {
                  $textarea = $segment.find('textarea');
              }
  
              // Show write/preview tab and copy raw content as needed
              $editContentZone.show();
              $renderContent.hide();
              if ($textarea.val().length == 0) {
                  $textarea.val($rawContent.text());
              }
              $textarea.focus();
              return false;
          });
  
          // Delete comment
          $('.delete-comment').click(function () {
              var $this = $(this);
              if (confirm($this.data('locale'))) {
                  $.post($this.data('url'), {
                      "_csrf": csrf
                  }).success(function () {
                      $('#' + $this.data('comment-id')).remove();
                  });
              }
              return false;
          });
  
          // Change status
          var $statusButton = $('#status-button');
          $('#comment-form .edit_area').keyup(function () {
              if ($(this).val().length == 0) {
                  $statusButton.text($statusButton.data('status'))
              } else {
                  $statusButton.text($statusButton.data('status-and-comment'))
              }
          });
          $statusButton.click(function () {
              $('#status').val($statusButton.data('status-val'));
              $('#comment-form').submit();
          });
      }
  
      // Diff
      if ($('.repository.diff').length > 0) {
          var $counter = $('.diff-counter');
          if ($counter.length >= 1) {
              $counter.each(function (i, item) {
                  var $item = $(item);
                  var addLine = $item.find('span[data-line].add').data("line");
                  var delLine = $item.find('span[data-line].del').data("line");
                  var addPercent = parseFloat(addLine) / (parseFloat(addLine) + parseFloat(delLine)) * 100;
                  $item.find(".bar .add").css("width", addPercent + "%");
              });
          }
      }
  
      // Quick start and repository home
      $('#repo-clone-ssh').click(function () {
          $('.clone-url').text($(this).data('link'));
          $('#repo-clone-url').val($(this).data('link'));
          $(this).addClass('blue');
          $('#repo-clone-https').removeClass('blue');
          localStorage.setItem('repo-clone-protocol', 'ssh');
      });
      $('#repo-clone-https').click(function () {
          $('.clone-url').text($(this).data('link'));
          $('#repo-clone-url').val($(this).data('link'));
          $(this).addClass('blue');
          $('#repo-clone-ssh').removeClass('blue');
          localStorage.setItem('repo-clone-protocol', 'https');
      });
      $('#repo-clone-url').click(function () {
          $(this).select();
      });
  
      // Pull request
      if ($('.repository.compare.pull').length > 0) {
          initFilterSearchDropdown('.choose.branch .dropdown');
      }
  }
  
  function initRepositoryCollaboration() {
      console.log('initRepositoryCollaboration');
  
      // Change collaborator access mode
      $('.access-mode.menu .item').click(function () {
          var $menu = $(this).parent();
          $.post($menu.data('url'), {
              "_csrf": csrf,
              "uid": $menu.data('uid'),
              "mode": $(this).data('value')
          })
      });
  }
  
  function initCourses() {
      console.log('initCourses');
  
      // Change course status
      $('.access-mode.menu .item').click(function () {
          console.log('test')
          var $menu = $(this).parent();
          $.post($menu.data('url'), {
              "_csrf": csrf,
              "sid": $menu.data('sid'),
              "status": $(this).data('value')
          })
      });
  }
  
  function initWikiForm() {
      var $editArea = $('.repository.wiki textarea#edit_area');
      if ($editArea.length > 0) {
          new SimpleMDE({
              autoDownloadFontAwesome: false,
              element: $editArea[0],
              forceSync: true,
              previewRender: function (plainText, preview) { // Async method
                  setTimeout(function () {
                      // FIXME: still send render request when return back to edit mode
                      $.post($editArea.data('url'), {
                              "_csrf": csrf,
                              "mode": "gfm",
                              "context": $editArea.data('context'),
                              "text": plainText
                          },
                          function (data) {
                              preview.innerHTML = '<div class="markdown">' + data + '</div>';
                              emojify.run($('.editor-preview')[0]);
                          }
                      );
                  }, 0);
  
                  return "Loading...";
              },
              renderingConfig: {
                  singleLineBreaks: false
              },
              indentWithTabs: false,
              tabSize: 4,
              spellChecker: false,
              toolbar: ["bold", "italic", "strikethrough", "|",
                  "heading-1", "heading-2", "heading-3", "heading-bigger", "heading-smaller", "|",
                  "code", "quote", "|",
                  "unordered-list", "ordered-list", "|",
                  "link", "image", "table", "horizontal-rule", "|",
                  "clean-block", "preview", "fullscreen"]
          })
      }
  }
  
  var simpleMDEditor;
  var codeMirrorEditor;
  
  // For IE
  String.prototype.endsWith = function (pattern) {
      var d = this.length - pattern.length;
      return d >= 0 && this.lastIndexOf(pattern) === d;
  };
  
  // Adding function to get the cursor position in a text field to jQuery object.
  (function ($, undefined) {
      $.fn.getCursorPosition = function () {
          var el = $(this).get(0);
          var pos = 0;
          if ('selectionStart' in el) {
              pos = el.selectionStart;
          } else if ('selection' in document) {
              el.focus();
              var Sel = document.selection.createRange();
              var SelLength = document.selection.createRange().text.length;
              Sel.moveStart('character', -el.value.length);
              pos = Sel.text.length - SelLength;
          }
          return pos;
      }
  })(jQuery);
  
  
  function setSimpleMDE($editArea) {
      if (codeMirrorEditor) {
          codeMirrorEditor.toTextArea();
          codeMirrorEditor = null;
      }
  
      if (simpleMDEditor) {
          return true;
      }
  
      simpleMDEditor = new SimpleMDE({
          autoDownloadFontAwesome: false,
          element: $editArea[0],
          forceSync: true,
          renderingConfig: {
              singleLineBreaks: false
          },
          indentWithTabs: false,
          tabSize: 4,
          spellChecker: false,
          previewRender: function (plainText, preview) { // Async method
              setTimeout(function () {
                  // FIXME: still send render request when return back to edit mode
                  $.post($editArea.data('url'), {
                          "_csrf": csrf,
                          "mode": "gfm",
                          "context": $editArea.data('context'),
                          "text": plainText
                      },
                      function (data) {
                          preview.innerHTML = '<div class="markdown">' + data + '</div>';
                          emojify.run($('.editor-preview')[0]);
                      }
                  );
              }, 0);
  
              return "Loading...";
          },
          toolbar: ["bold", "italic", "strikethrough", "|",
              "heading-1", "heading-2", "heading-3", "heading-bigger", "heading-smaller", "|",
              "code", "quote", "|",
              "unordered-list", "ordered-list", "|",
              "link", "image", "table", "horizontal-rule", "|",
              "clean-block", "preview", "fullscreen", "side-by-side"]
      });
  
      return true;
  }
  
  function setCodeMirror($editArea) {
      if (simpleMDEditor) {
          simpleMDEditor.toTextArea();
          simpleMDEditor = null;
      }
  
      if (codeMirrorEditor) {
          return true;
      }
  
      codeMirrorEditor = CodeMirror.fromTextArea($editArea[0], {
          lineNumbers: true
      });
      codeMirrorEditor.on("change", function (cm, change) {
          $editArea.val(cm.getValue());
      });
  
      return true;
  }
  
  function initEditor() {
      $('.js-quick-pull-choice-option').change(function () {
          if ($(this).val() == 'commit-to-new-branch') {
              $('.quick-pull-branch-name').show();
              $('.quick-pull-branch-name input').prop('required',true);
          } else {
              $('.quick-pull-branch-name').hide();
              $('.quick-pull-branch-name input').prop('required',false);
          }
      });
  
      var $editFilename = $("#file-name");
      $editFilename.keyup(function (e) {
          var $section = $('.breadcrumb span.section');
          var $divider = $('.breadcrumb div.divider');
          if (e.keyCode == 8) {
              if ($(this).getCursorPosition() == 0) {
                  if ($section.length > 0) {
                      var value = $section.last().find('a').text();
                      $(this).val(value + $(this).val());
                      $(this)[0].setSelectionRange(value.length, value.length);
                      $section.last().remove();
                      $divider.last().remove();
                  }
              }
          }
          if (e.keyCode == 191) {
              var parts = $(this).val().split('/');
              for (var i = 0; i < parts.length; ++i) {
                  var value = parts[i];
                  if (i < parts.length - 1) {
                      if (value.length) {
                          $('<span class="section"><a href="#">' + value + '</a></span>').insertBefore($(this));
                          $('<div class="divider"> / </div>').insertBefore($(this));
                      }
                  }
                  else {
                      $(this).val(value);
                  }
                  $(this)[0].setSelectionRange(0, 0);
              }
          }
          var parts = [];
          $('.breadcrumb span.section').each(function (i, element) {
              element = $(element);
              if (element.find('a').length) {
                  parts.push(element.find('a').text());
              } else {
                  parts.push(element.text());
              }
          });
          if ($(this).val())
              parts.push($(this).val());
          $('#tree_path').val(parts.join('/'));
      }).trigger('keyup');
  
      var $editArea = $('.repository.editor textarea#edit_area');
      if (!$editArea.length)
          return;
  
      var markdownFileExts = $editArea.data("markdown-file-exts").split(",");
      var lineWrapExtensions = $editArea.data("line-wrap-extensions").split(",");
  
      $editFilename.on("keyup", function (e) {
          var val = $editFilename.val(), m, mode, spec, extension, extWithDot, previewLink, dataUrl, apiCall;
          extension = extWithDot = "";
          if (m = /.+\.([^.]+)$/.exec(val)) {
              extension = m[1];
              extWithDot = "." + extension;
          }
  
          var info = CodeMirror.findModeByExtension(extension);
          previewLink = $('a[data-tab=preview]');
          if (info) {
              mode = info.mode;
              spec = info.mime;
              apiCall = mode;
          }
          else {
              apiCall = extension
          }
  
          if (previewLink.length && apiCall && previewFileModes && previewFileModes.length && previewFileModes.indexOf(apiCall) >= 0) {
              dataUrl = previewLink.data('url');
              previewLink.data('url', dataUrl.replace(/(.*)\/.*/i, '$1/' + mode));
              previewLink.show();
          }
          else {
              previewLink.hide();
          }
  
          // If this file is a Markdown extensions, we will load that editor and return
          if (markdownFileExts.indexOf(extWithDot) >= 0) {
              if (setSimpleMDE($editArea)) {
                  return;
              }
          }
  
          // Else we are going to use CodeMirror
          if (!codeMirrorEditor && !setCodeMirror($editArea)) {
              return;
          }
  
          if (mode) {
              codeMirrorEditor.setOption("mode", spec);
              CodeMirror.autoLoadMode(codeMirrorEditor, mode);
          }
  
          if (lineWrapExtensions.indexOf(extWithDot) >= 0) {
              codeMirrorEditor.setOption("lineWrapping", true);
          }
          else {
              codeMirrorEditor.setOption("lineWrapping", false);
          }
  
          // get the filename without any folder
          var value = $editFilename.val();
          if (value.length === 0) {
              return;
          }
          value = value.split('/');
          value = value[value.length - 1];
  
          $.getJSON($editFilename.data('ec-url-prefix')+value, function(editorconfig) {
              if (editorconfig.indent_style === 'tab') {
                  codeMirrorEditor.setOption("indentWithTabs", true);
                  codeMirrorEditor.setOption('extraKeys', {});
              } else {
                  codeMirrorEditor.setOption("indentWithTabs", false);
                  // required because CodeMirror doesn't seems to use spaces correctly for {"indentWithTabs": false}:
                  // - https://github.com/codemirror/CodeMirror/issues/988
                  // - https://codemirror.net/doc/manual.html#keymaps
                  codeMirrorEditor.setOption('extraKeys', {
                      Tab: function(cm) {
                          var spaces = Array(parseInt(cm.getOption("indentUnit")) + 1).join(" ");
                          cm.replaceSelection(spaces);
                      }
                  });
              }
              codeMirrorEditor.setOption("indentUnit", editorconfig.indent_size || 4);
              codeMirrorEditor.setOption("tabSize", editorconfig.tab_width || 4);
          });
      }).trigger('keyup');
  }
  
  function initOrganization() {
      if ($('.organization').length == 0) {
          return;
      }
  
      // Options
      if ($('.organization.settings.options').length > 0) {
          $('#org_name').keyup(function () {
              var $prompt = $('#org-name-change-prompt');
              if ($(this).val().toString().toLowerCase() != $(this).data('org-name').toString().toLowerCase()) {
                  $prompt.show();
              } else {
                  $prompt.hide();
              }
          });
      }
  }
  
  function initUserSettings() {
      console.log('initUserSettings');
  
      // Options
      if ($('.user.settings.profile').length > 0) {
          $('#username').keyup(function () {
              var $prompt = $('#name-change-prompt');
              if ($(this).val().toString().toLowerCase() != $(this).data('name').toString().toLowerCase()) {
                  $prompt.show();
              } else {
                  $prompt.hide();
              }
          });
      }
  }
  
  function initWebhook() {
      if ($('.new.webhook').length == 0) {
          return;
      }
  
      $('.events.checkbox input').change(function () {
          if ($(this).is(':checked')) {
              $('.events.fields').show();
          }
      });
      $('.non-events.checkbox input').change(function () {
          if ($(this).is(':checked')) {
              $('.events.fields').hide();
          }
      });
  
      // Test delivery
      $('#test-delivery').click(function () {
          var $this = $(this);
          $this.addClass('loading disabled');
          $.post($this.data('link'), {
              "_csrf": csrf
          }).done(
              setTimeout(function () {
                  window.location.href = $this.data('redirect');
              }, 5000)
          )
      });
  }
  
  function initAdmin() {
      if ($('.admin').length == 0) {
          return;
      }
  
      // New user
      if ($('.admin.new.user').length > 0 ||
          $('.admin.edit.user').length > 0) {
          $('#login_type').change(function () {
              if ($(this).val().substring(0, 1) == '0') {
                  $('#login_name').removeAttr('required');
                  $('.non-local').hide();
                  $('.local').show();
                  $('#user_name').focus();
  
                  if ($(this).data('password') == "required") {
                      $('#password').attr('required', 'required');
                  }
  
              } else {
                  $('#login_name').attr('required', 'required');
                  $('.non-local').show();
                  $('.local').hide();
                  $('#login_name').focus();
  
                  $('#password').removeAttr('required');
              }
          });
      }
  
      function onSecurityProtocolChange() {
          if ($('#security_protocol').val() > 0) {
              $('.has-tls').show();
          } else {
              $('.has-tls').hide();
          }
      }
  
      // New authentication
      if ($('.admin.new.authentication').length > 0) {
          $('#auth_type').change(function () {
              $('.ldap').hide();
              $('.dldap').hide();
              $('.smtp').hide();
              $('.pam').hide();
              $('.has-tls').hide();
  
              var authType = $(this).val();
              switch (authType) {
                  case '2':     // LDAP
                      $('.ldap').show();
                      break;
                  case '3':     // SMTP
                      $('.smtp').show();
                      $('.has-tls').show();
                      break;
                  case '4':     // PAM
                      $('.pam').show();
                      break;
                  case '5':     // LDAP
                      $('.dldap').show();
                      break;
              }
  
              if (authType == '2' || authType == '5') {
                  onSecurityProtocolChange()
              }
          });
          $('#security_protocol').change(onSecurityProtocolChange)
      }
      // Edit authentication
      if ($('.admin.edit.authentication').length > 0) {
          var authType = $('#auth_type').val();
          if (authType == '2' || authType == '5') {
              $('#security_protocol').change(onSecurityProtocolChange);
          }
      }
  
      // Notice
      if ($('.admin.notice')) {
          var $detailModal = $('#detail-modal');
  
          // Attach view detail modals
          $('.view-detail').click(function () {
              $detailModal.find('.content p').text($(this).data('content'));
              $detailModal.modal('show');
              return false;
          });
  
          // Select actions
          var $checkboxes = $('.select.table .ui.checkbox');
          $('.select.action').click(function () {
              switch ($(this).data('action')) {
                  case 'select-all':
                      $checkboxes.checkbox('check');
                      break;
                  case 'deselect-all':
                      $checkboxes.checkbox('uncheck');
                      break;
                  case 'inverse':
                      $checkboxes.checkbox('toggle');
                      break;
              }
          });
          $('#delete-selection').click(function () {
              var $this = $(this);
              $this.addClass("loading disabled");
              var ids = [];
              $checkboxes.each(function () {
                  if ($(this).checkbox('is checked')) {
                      ids.push($(this).data('id'));
                  }
              });
              $.post($this.data('link'), {
                  "_csrf": csrf,
                  "ids": ids
              }).done(function () {
                  window.location.href = $this.data('redirect');
              });
          });
      }
  }
  
  function buttonsClickOnEnter() {
      $('.ui.button').keypress(function (e) {
          if (e.keyCode == 13 || e.keyCode == 32) // enter key or space bar
              $(this).click();
      });
  }
  
  function hideWhenLostFocus(body, parent) {
      $(document).click(function (e) {
          var target = e.target;
          if (!$(target).is(body) && !$(target).parents().is(parent)) {
              $(body).hide();
          }
      });
  }
  
  function searchUsers() {
      if (!$('#search-user-box .results').length) {
          return;
      }
  
      var $searchUserBox = $('#search-user-box');
      var $results = $searchUserBox.find('.results');
      $searchUserBox.keyup(function () {
          var $this = $(this);
          var keyword = $this.find('input').val();
          if (keyword.length < 1) {
              $results.hide();
              return;
          }
  
          $.ajax({
              url: suburl + '/api/v1/users/search?q=' + keyword,
              dataType: "json",
              success: function (response) {
                  //console.log(response)
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $results.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item"><img class="ui avatar image" src="' + item.avatar_url + '"><span class="username">' + item.username + '</span>';
                          if (notEmpty(item.full_name)) {
                              html += ' (' + item.full_name + ')';
                          }
                          html += '</div>';
                      });
                      $results.html(html);
                      $this.find('.results .item').click(function () {
                          $this.find('input').val($(this).find('.username').text());
                          $results.hide();
                      });
                      $results.show();
                  } else {
                      $results.hide();
                  }
              }
          });
      });
      $searchUserBox.find('input').focus(function () {
          $searchUserBox.keyup();
      });
      hideWhenLostFocus('#search-user-box .results', '#search-user-box');
  }
  
  function getSubjects(){
      var $SubjectsBox = $("#SubjectBox");
      var $results = $SubjectsBox.find('.menu');
      $SubjectsBox.click(function(){
          var $this = $(this);
          $.ajax({
              url: suburl + '/api/v1/subjects/list',
              dataType: "json",
              success: function (response) {
  
                  $results.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item" data-value="'+item.id+'">'+item.name+'</div>';
                      });
                      $results.html(html);
                  } else {
                      $results.hide();
                  }
              }
          });
      });
  }
  
  function searchTags() {
      var $searchTagBox = $('#tag-box');
      var $results = $searchTagBox.find('.menu');
  
      $searchTagBox.click(function () {
          var $this = $(this);
          $.ajax({
              url: suburl + '/api/v1/tags/search',
              dataType: "json",
              success: function (response) {
  
                  $results.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item" data-value="'+item.id+'">'+item.etiqueta+'</div>';
                      });
                      $results.html(html);
                      $results.show();
                  } else {
                      $results.hide();
                  }
              }
          });
      });
  }
  
  function getSubjectsFromProfessor(){
      var $subjectsBox = $("#subject-box");
      var $semesterBox = $("#semester-box");
      var $groupBox = $("#group-box");
      var $inputProfessor = $("#professor");
      $inputProfessor.change(function (){
  
          var $this = $(this);
          var keyword = $this.val();
          //GET SUBJECTS
          $.ajax({
              url: suburl + '/api/v1/subjects/searchByProfessor?q=' + keyword,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $subjectsBox.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item" data-value="'+item.id+'">'+item.name+'</div>';
                      });
                      $subjectsBox.html(html);
                  } else {
                      $subjectsBox.hide();
                  }
              }
          });
          //GET SEMESTERS
          $.ajax({
              url: suburl + '/api/v1/semesters/searchByProfessor?q=' + keyword,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $semesterBox.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item" data-value="'+item.id+'">'+item.name+'</div>';
                      });
                      $semesterBox.html(html);
                  } else {
                      $semesterBox.hide();
                  }
              }
          });
          //GET GROUPS
          $.ajax({
              url: suburl + '/api/v1/groups/searchByProfessor?q=' + keyword,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $groupBox.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item" data-value="'+item.id+'">'+item.name+'</div>';
                      });
                      $groupBox.html(html);
                  } else {
                      $groupBox.hide();
                  }
              }
          });
      });
  }
  
  function searchSubjects() {
      if (!$('#search-subject-box .results').length) {
          return;
      }
  
      var $searchSubjectBox = $('#search-subject-box');
      var $results = $searchSubjectBox.find('.results');
      $searchSubjectBox.keyup(function () {
          var $this = $(this);
          var keyword = $this.find('input').val();
          $.ajax({
              url: suburl + '/api/v1/subjects/search?q=' + keyword,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $results.html('<div class="menu transition hidden" tabindex="-1">');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item"><img class="ui avatar image" src="/img/subject.png"><span class="username">' + item.name + '</span>';
                          html += '</div>';
                      });
                      $results.html(html + "</div>");
  
  
                      $this.find('.results .item').click(function () {
                          $this.find('input').val($(this).find('.username').text());
                          $results.hide();
                      });
                      $results.show();
                  } else {
                      $results.hide();
                  }
              }
          });
      });
      $searchSubjectBox.find('input').focus(function () {
          $searchSubjectBox.keyup();
      });
      hideWhenLostFocus('#search-subject-box .results', '#search-subject-box');
  }
  
  // FIXME: merge common parts in two functions
  function searchRepositories() {
      if (!$('#search-repo-box .results').length) {
          return;
      }
  
      var $searchRepoBox = $('#search-repo-box');
      var $results = $searchRepoBox.find('.results');
      $searchRepoBox.keyup(function () {
          var $this = $(this);
          var keyword = $this.find('input').val();
          if (keyword.length < 2) {
              $results.hide();
              return;
          }
  
          $.ajax({
              url: suburl + '/api/v1/repos/search?q=' + keyword + "&uid=" + $searchRepoBox.data('uid'),
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  $results.html('');
  
                  if (response.ok && response.data.length) {
                      var html = '';
                      $.each(response.data, function (i, item) {
                          html += '<div class="item"><i class="icon octicon octicon-repo"></i> <span class="fullname">' + item.full_name + '</span></div>';
                      });
                      $results.html(html);
                      $this.find('.results .item').click(function () {
                          $this.find('input').val($(this).find('.fullname').text().split("/")[1]);
                          $results.hide();
                      });
                      $results.show();
                  } else {
                      $results.hide();
                  }
              }
          });
      });
      $searchRepoBox.find('input').focus(function () {
          $searchRepoBox.keyup();
      });
      hideWhenLostFocus('#search-repo-box .results', '#search-repo-box');
  }
  
  function initCodeView() {
      if ($('.code-view .linenums').length > 0) {
          $(document).on('click', '.lines-num span', function (e) {
              var $select = $(this);
              var $list = $select.parent().siblings('.lines-code').find('ol.linenums > li');
              selectRange($list, $list.filter('[rel=' + $select.attr('id') + ']'), (e.shiftKey ? $list.filter('.active').eq(0) : null));
              deSelect();
          });
  
          $(window).on('hashchange', function (e) {
              var m = window.location.hash.match(/^#(L\d+)\-(L\d+)$/);
              var $list = $('.code-view ol.linenums > li');
              var $first;
              if (m) {
                  $first = $list.filter('.' + m[1]);
                  selectRange($list, $first, $list.filter('.' + m[2]));
                  $("html, body").scrollTop($first.offset().top - 200);
                  return;
              }
              m = window.location.hash.match(/^#(L\d+)$/);
              if (m) {
                  $first = $list.filter('.' + m[1]);
                  selectRange($list, $first);
                  $("html, body").scrollTop($first.offset().top - 200);
              }
          }).trigger('hashchange');
      }
  }
  
  function registrarTag(){
      var $form = $("#form-registrarTag");
      $form.submit(function( event ) {
          var tag = $("#tag_modal").val();
          $.ajax({
              url: suburl + '/api/v1/tags/create?t=' + tag,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  if (response.ok && response.data.length) {
                      $.each(response.data, function (i, item) {
                          $('.ui.modal').modal('hide');
                          $("#divMensajeTagError").hide();
                          $("#mensajeTag").html("Se ha registrado la tag: " + item.etiqueta)
                          $("#divMensajeTag").show();
                          $("#tag_modal").val("");
                      });
                  }
              },
              error: function(response){
                  $("#divMensajeTagError").show();
              }
          });
          event.preventDefault();
      });
  }
  
  function registrarMateria(){
      var $form = $("#form-registrarMateria");
      $form.submit(function( event ) {
          var $subject = $("#subject_modal").val();
          $.ajax({
              url: suburl + '/api/v1/subjects/create?s=' + $subject,
              dataType: "json",
              success: function (response) {
                  var notEmpty = function (str) {
                      return str && str.length > 0;
                  };
  
                  if (response.ok && response.data.length) {
                      $.each(response.data, function (i, item) {
                          $('.ui.modal').modal('hide');
                          $("#divMensajeMateriaError").hide();
                          $("#mensajeMateria").html("Se ha registrado la materia: " + item.name)
                          $("#divMensajeMateria").show();
                          $("#subject_modal").val("");
                      });
                  }
              },
              error: function(response){
                  $("#divMensajeMateriaError").show();
              }
          });
          event.preventDefault();
      });
  }
  
  $(document).ready(function () {
      csrf = $('meta[name=_csrf]').attr("content");
      suburl = $('meta[name=_suburl]').attr("content");
  
      // Show exact time
      $('.time-since').each(function () {
          $(this).addClass('poping up').attr('data-content', $(this).attr('title')).attr('data-variation', 'inverted tiny').attr('title', '');
      });
  
      // Semantic UI modules.
      $('.ui.dropdown').dropdown({
          message: {
            addResult     : 'Add <b>{term}</b>',
            count         : '{count} selected',
            maxSelections : 'Max {maxCount} selections',
            noResults     : 'Sin resultados.'
          },
        });
      $('.jump.dropdown').dropdown({
          action: 'hide',
          onShow: function () {
              $('.poping.up').popup('hide');
          }
      });
      $('.slide.up.dropdown').dropdown({
          transition: 'slide up'
      });
      $('.upward.dropdown').dropdown({
          direction: 'upward'
      });
      $('.ui.accordion').accordion();
      $('.ui.checkbox').checkbox();
      $('.ui.progress').progress({
          showActivity: false
      });
      $('.poping.up').popup();
      $('.top.menu .poping.up').popup({
          onShow: function () {
              if ($('.top.menu .menu.transition').hasClass('visible')) {
                  return false;
              }
          }
      });
      $('.tabular.menu .item').tab();
      $('.tabable.menu .item').tab();
  
      $('.toggle.button').click(function () {
          $($(this).data('target')).slideToggle(100);
      });
  
      // Highlight JS
      if (typeof hljs != 'undefined') {
          hljs.initHighlightingOnLoad();
      }
  
      // Dropzone
      var $dropzone = $('#dropzone');
      if ($dropzone.length > 0) {
          // Disable auto discover for all elements:
          Dropzone.autoDiscover = false;
  
          var filenameDict = {};
          $dropzone.dropzone({
              url: $dropzone.data('upload-url'),
              headers: {"X-Csrf-Token": csrf},
              maxFiles: $dropzone.data('max-file'),
              maxFilesize: $dropzone.data('max-size'),
              acceptedFiles: ($dropzone.data('accepts') === '*/*') ? null : $dropzone.data('accepts'),
              addRemoveLinks: true,
              dictDefaultMessage: $dropzone.data('default-message'),
              dictInvalidFileType: $dropzone.data('invalid-input-type'),
              dictFileTooBig: $dropzone.data('file-too-big'),
              dictRemoveFile: $dropzone.data('remove-file'),
              init: function () {
                  this.on("success", function (file, data) {
                      filenameDict[file.name] = data.uuid;
                      var input = $('<input id="' + data.uuid + '" name="files" type="hidden">').val(data.uuid);
                      $('.files').append(input);
                  });
                  this.on("removedfile", function (file) {
                      if (file.name in filenameDict) {
                          $('#' + filenameDict[file.name]).remove();
                      }
                      if ($dropzone.data('remove-url') && $dropzone.data('csrf')) {
                          $.post($dropzone.data('remove-url'), {
                              file: filenameDict[file.name],
                              _csrf: $dropzone.data('csrf')
                          });
                      }
                  })
              }
          });
      }
  
      // Emojify
      emojify.setConfig({
          img_dir: suburl + '/img/emoji',
          ignore_emoticons: true
      });
      var hasEmoji = document.getElementsByClassName('has-emoji');
      for (var i = 0; i < hasEmoji.length; i++) {
          emojify.run(hasEmoji[i]);
      }
  
      // Clipboard JS
      var clipboard = new Clipboard('.clipboard');
      clipboard.on('success', function (e) {
          e.clearSelection();
  
          $('#' + e.trigger.getAttribute('id')).popup('destroy');
          e.trigger.setAttribute('data-content', e.trigger.getAttribute('data-success'))
          $('#' + e.trigger.getAttribute('id')).popup('show');
          e.trigger.setAttribute('data-content', e.trigger.getAttribute('data-original'))
      });
  
      clipboard.on('error', function (e) {
          $('#' + e.trigger.getAttribute('id')).popup('destroy');
          e.trigger.setAttribute('data-content', e.trigger.getAttribute('data-error'))
          $('#' + e.trigger.getAttribute('id')).popup('show');
          e.trigger.setAttribute('data-content', e.trigger.getAttribute('data-original'))
      });
  
      // Helpers.
       $('.activate-button').click(function () {
          var $this = $(this);
          $.post($this.data('url'), {
              "_csrf": csrf,
              "id": $this.data("id")
          }).done(function (data) {
              window.location.href = data.redirect;
          });
          return false;
      });
      $('.delete-button').click(function () {
          var $this = $(this);
          $('.delete.modal').modal({
              closable: false,
              onApprove: function () {
                  if ($this.data('type') == "form") {
                      $($this.data('form')).submit();
                      return;
                  }
  
                  $.post($this.data('url'), {
                      "_csrf": csrf,
                      "id": $this.data("id")
                  }).done(function (data) {
                      window.location.href = data.redirect;
                  });
              }
          }).modal('show');
          return false;
      });
      $('.show-panel.button').click(function () {
          $($(this).data('panel')).show();
      });
      $('.show-modal.button').click(function () {
          $($(this).data('modal')).modal('show');
      });
      $('.delete-post.button').click(function () {
          var $this = $(this);
          $.post($this.data('request-url'), {
              "_csrf": csrf
          }).done(function () {
              window.location.href = $this.data('done-url');
          });
      });
  
      // Set anchor.
      $('.markdown').each(function () {
          var headers = {};
          $(this).find('h1, h2, h3, h4, h5, h6').each(function () {
              var node = $(this);
              var val = encodeURIComponent(node.text().toLowerCase().replace(/[^\w\- ]/g, '').replace(/[ ]/g, '-'));
              var name = val;
              if (headers[val] > 0) {
                  name = val + '-' + headers[val];
              }
              if (headers[val] == undefined) {
                  headers[val] = 1;
              } else {
                  headers[val] += 1;
              }
              node = node.wrap('<div id="' + name + '" class="anchor-wrap" ></div>');
              node.append('<a class="anchor" href="#' + name + '"><span class="octicon octicon-link"></span></a>');
          });
      });
  
      buttonsClickOnEnter();
      searchUsers();
      searchSubjects();
      searchRepositories();
      searchTags();
      getSubjectsFromProfessor();
      getSubjects();
      registrarMateria();
      registrarTag();
  
      initCommentForm();
      initInstall();
      initRepository();
      initWikiForm();
      initEditForm();
      initEditor();
      initOrganization();
      initWebhook();
      initAdmin();
      initCodeView();
  
      // Repo clone url.
      if ($('#repo-clone-url').length > 0) {
          switch (localStorage.getItem('repo-clone-protocol')) {
              case 'ssh':
                  if ($('#repo-clone-ssh').click().length === 0) {
                      $('#repo-clone-https').click();
                  }
                  break;
              default:
                  $('#repo-clone-https').click();
                  break;
          }
      }
  
      var routes = {
          'div.user.settings': initUserSettings,
          'div.repository.settings.collaboration': initRepositoryCollaboration,
          'div.user.course': initCourses
      };
  
      var selector;
      for (selector in routes) {
          if ($(selector).length > 0) {
              routes[selector]();
              break;
          }
      }
  });
  
  function changeHash(hash) {
      if (history.pushState) {
          history.pushState(null, null, hash);
      }
      else {
          location.hash = hash;
      }
  }
  
  function deSelect() {
      if (window.getSelection) {
          window.getSelection().removeAllRanges();
      } else {
          document.selection.empty();
      }
  }
  
  function selectRange($list, $select, $from) {
      $list.removeClass('active');
      if ($from) {
          var a = parseInt($select.attr('rel').substr(1));
          var b = parseInt($from.attr('rel').substr(1));
          var c;
          if (a != b) {
              if (a > b) {
                  c = a;
                  a = b;
                  b = c;
              }
              var classes = [];
              for (var i = a; i <= b; i++) {
                  classes.push('.L' + i);
              }
              $list.filter(classes.join(',')).addClass('active');
              changeHash('#L' + a + '-' + 'L' + b);
              return
          }
      }
      $select.addClass('active');
      changeHash('#' + $select.attr('rel'));
  }
  
  $(function () {
      if ($('.user.signin').length > 0) return;
      $('form').areYouSure();
  });
  