Merge branch '28869-es6-modules' into 'master'

Export old code into es6 modules

See merge request gitlab-org/gitlab-ce!15787

11 files changed, 650 insertions, 666 deletions

diff --git a/app/assets/javascripts/dispatcher.js b/app/assets/javascripts/dispatcher.js
index 299e43a4e90..12402fd645f 100644
--- a/app/assets/javascripts/dispatcher.js
+++ b/app/assets/javascripts/dispatcher.js
@@ -15,7 +15,7 @@ import GroupLabelSubscription from './group_label_subscription';
 import BuildArtifacts from './build_artifacts';
 import CILintEditor from './ci_lint_editor';
 import groupsSelect from './groups_select';
-/* global Search */
+import Search from './search';
 /* global Admin */
 import NamespaceSelect from './namespace_select';
 import NewCommitForm from './new_commit_form';
@@ -24,7 +24,7 @@ import projectAvatar from './project_avatar';
 /* global MergeRequest */
 import Compare from './compare';
 import initCompareAutocomplete from './compare_autocomplete';
-/* global ProjectFindFile */
+import ProjectFindFile from './project_find_file';
 import ProjectNew from './project_new';
 import projectImport from './project_import';
 import Labels from './labels';
@@ -91,6 +91,7 @@ import DueDateSelectors from './due_date_select';
 import Diff from './diff';
 import ProjectLabelSubscription from './project_label_subscription';
 import ProjectVariables from './project_variables';
+import SearchAutocomplete from './search_autocomplete';
 
 (function() {
   var Dispatcher;
@@ -683,7 +684,7 @@ import ProjectVariables from './project_variables';
     Dispatcher.prototype.initSearch = function() {
       // Only when search form is present
       if ($('.search').length) {
-        return new gl.SearchAutocomplete();
+        return new SearchAutocomplete();
       }
     };
 
diff --git a/app/assets/javascripts/main.js b/app/assets/javascripts/main.js
index 9e4047b6840..30cdb523bef 100644
--- a/app/assets/javascripts/main.js
+++ b/app/assets/javascripts/main.js
@@ -60,15 +60,10 @@ import './notifications_dropdown';
 import './notifications_form';
 import './pager';
 import './preview_markdown';
-import './project_find_file';
 import './project_import';
 import './projects_dropdown';
-import './projects_list';
-import './syntax_highlight';
 import './render_gfm';
 import './right_sidebar';
-import './search';
-import './search_autocomplete';
 import initBreadcrumbs from './breadcrumb';
 
 import './dispatcher';
diff --git a/app/assets/javascripts/merge_conflicts/merge_conflicts_bundle.js b/app/assets/javascripts/merge_conflicts/merge_conflicts_bundle.js
index 17591829b76..94561d6b7c3 100644
--- a/app/assets/javascripts/merge_conflicts/merge_conflicts_bundle.js
+++ b/app/assets/javascripts/merge_conflicts/merge_conflicts_bundle.js
@@ -10,6 +10,7 @@ import './mixins/line_conflict_actions';
 import './components/diff_file_editor';
 import './components/inline_conflict_lines';
 import './components/parallel_conflict_lines';
+import syntaxHighlight from '../syntax_highlight';
 
 $(() => {
   const INTERACTIVE_RESOLVE_MODE = 'interactive';
@@ -53,7 +54,7 @@ $(() => {
           mergeConflictsStore.setLoadingState(false);
 
           this.$nextTick(() => {
-            $('.js-syntax-highlight').syntaxHighlight();
+            syntaxHighlight($('.js-syntax-highlight'));
           });
         });
     },
diff --git a/app/assets/javascripts/merge_request_tabs.js b/app/assets/javascripts/merge_request_tabs.js
index 589e65647ac..a630daa6bdc 100644
--- a/app/assets/javascripts/merge_request_tabs.js
+++ b/app/assets/javascripts/merge_request_tabs.js
@@ -14,6 +14,7 @@ import {
 import { getLocationHash } from './lib/utils/url_utility';
 import initDiscussionTab from './image_diff/init_discussion_tab';
 import Diff from './diff';
+import syntaxHighlight from './syntax_highlight';
 
 /* eslint-disable max-len */
 // MergeRequestTabs
@@ -295,7 +296,7 @@ import Diff from './diff';
           }
 
           gl.utils.localTimeAgo($('.js-timeago', 'div#diffs'));
-          $('#diffs .js-syntax-highlight').syntaxHighlight();
+          syntaxHighlight($('#diffs .js-syntax-highlight'));
 
           if (this.diffViewType() === 'parallel' && this.isDiffAction(this.currentAction)) {
             this.expandViewContainer();
diff --git a/app/assets/javascripts/project_find_file.js b/app/assets/javascripts/project_find_file.js
index 19682b20a4a..0da32b4a3cc 100644
--- a/app/assets/javascripts/project_find_file.js
+++ b/app/assets/javascripts/project_find_file.js
@@ -2,169 +2,163 @@
 
 import fuzzaldrinPlus from 'fuzzaldrin-plus';
 
-(function() {
-  this.ProjectFindFile = (function() {
-    var highlighter;
-
-    function ProjectFindFile(element1, options) {
-      this.element = element1;
-      this.options = options;
-      this.goToBlob = this.goToBlob.bind(this);
-      this.goToTree = this.goToTree.bind(this);
-      this.selectRowDown = this.selectRowDown.bind(this);
-      this.selectRowUp = this.selectRowUp.bind(this);
-      this.filePaths = {};
-      this.inputElement = this.element.find(".file-finder-input");
-      // init event
-      this.initEvent();
-      // focus text input box
-      this.inputElement.focus();
-      // load file list
-      this.load(this.options.url);
+// highlight text(awefwbwgtc -> <b>a</b>wefw<b>b</b>wgt<b>c</b> )
+const highlighter = function(element, text, matches) {
+  var highlightText, j, lastIndex, len, matchIndex, matchedChars, unmatched;
+  lastIndex = 0;
+  highlightText = "";
+  matchedChars = [];
+  for (j = 0, len = matches.length; j < len; j += 1) {
+    matchIndex = matches[j];
+    unmatched = text.substring(lastIndex, matchIndex);
+    if (unmatched) {
+      if (matchedChars.length) {
+        element.append(matchedChars.join("").bold());
+      }
+      matchedChars = [];
+      element.append(document.createTextNode(unmatched));
     }
-
-    ProjectFindFile.prototype.initEvent = function() {
-      this.inputElement.off("keyup");
-      this.inputElement.on("keyup", (function(_this) {
-        return function(event) {
-          var oldValue, ref, target, value;
-          target = $(event.target);
-          value = target.val();
-          oldValue = (ref = target.data("oldValue")) != null ? ref : "";
-          if (value !== oldValue) {
-            target.data("oldValue", value);
-            _this.findFile();
-            return _this.element.find("tr.tree-item").eq(0).addClass("selected").focus();
-          }
-        };
-      })(this));
-    };
-
-    ProjectFindFile.prototype.findFile = function() {
-      var result, searchText;
-      searchText = this.inputElement.val();
-      result = searchText.length > 0 ? fuzzaldrinPlus.filter(this.filePaths, searchText) : this.filePaths;
-      return this.renderList(result, searchText);
-    // find file
-    };
+    matchedChars.push(text[matchIndex]);
+    lastIndex = matchIndex + 1;
+  }
+  if (matchedChars.length) {
+    element.append(matchedChars.join("").bold());
+  }
+  return element.append(document.createTextNode(text.substring(lastIndex)));
+};
+
+export default class ProjectFindFile {
+  constructor(element1, options) {
+    this.element = element1;
+    this.options = options;
+    this.goToBlob = this.goToBlob.bind(this);
+    this.goToTree = this.goToTree.bind(this);
+    this.selectRowDown = this.selectRowDown.bind(this);
+    this.selectRowUp = this.selectRowUp.bind(this);
+    this.filePaths = {};
+    this.inputElement = this.element.find(".file-finder-input");
+    // init event
+    this.initEvent();
+    // focus text input box
+    this.inputElement.focus();
+    // load file list
+    this.load(this.options.url);
+  }
+
+  initEvent() {
+    this.inputElement.off("keyup");
+    this.inputElement.on("keyup", (function(_this) {
+      return function(event) {
+        var oldValue, ref, target, value;
+        target = $(event.target);
+        value = target.val();
+        oldValue = (ref = target.data("oldValue")) != null ? ref : "";
+        if (value !== oldValue) {
+          target.data("oldValue", value);
+          _this.findFile();
+          return _this.element.find("tr.tree-item").eq(0).addClass("selected").focus();
+        }
+      };
+    })(this));
+  }
+
+  findFile() {
+    var result, searchText;
+    searchText = this.inputElement.val();
+    result = searchText.length > 0 ? fuzzaldrinPlus.filter(this.filePaths, searchText) : this.filePaths;
+    return this.renderList(result, searchText);
+  // find file
+  }
 
     // files pathes load
-    ProjectFindFile.prototype.load = function(url) {
-      return $.ajax({
-        url: url,
-        method: "get",
-        dataType: "json",
-        success: (function(_this) {
-          return function(data) {
-            _this.element.find(".loading").hide();
-            _this.filePaths = data;
-            _this.findFile();
-            return _this.element.find(".files-slider tr.tree-item").eq(0).addClass("selected").focus();
-          };
-        })(this)
-      });
-    };
+  load(url) {
+    return $.ajax({
+      url: url,
+      method: "get",
+      dataType: "json",
+      success: (function(_this) {
+        return function(data) {
+          _this.element.find(".loading").hide();
+          _this.filePaths = data;
+          _this.findFile();
+          return _this.element.find(".files-slider tr.tree-item").eq(0).addClass("selected").focus();
+        };
+      })(this)
+    });
+  }
 
     // render result
-    ProjectFindFile.prototype.renderList = function(filePaths, searchText) {
-      var blobItemUrl, filePath, html, i, j, len, matches, results;
-      this.element.find(".tree-table > tbody").empty();
-      results = [];
-      for (i = j = 0, len = filePaths.length; j < len; i = (j += 1)) {
-        filePath = filePaths[i];
-        if (i === 20) {
-          break;
-        }
-        if (searchText) {
-          matches = fuzzaldrinPlus.match(filePath, searchText);
-        }
-        blobItemUrl = this.options.blobUrlTemplate + "/" + filePath;
-        html = this.makeHtml(filePath, matches, blobItemUrl);
-        results.push(this.element.find(".tree-table > tbody").append(html));
-      }
-      return results;
-    };
-
-    // highlight text(awefwbwgtc -> <b>a</b>wefw<b>b</b>wgt<b>c</b> )
-    highlighter = function(element, text, matches) {
-      var highlightText, j, lastIndex, len, matchIndex, matchedChars, unmatched;
-      lastIndex = 0;
-      highlightText = "";
-      matchedChars = [];
-      for (j = 0, len = matches.length; j < len; j += 1) {
-        matchIndex = matches[j];
-        unmatched = text.substring(lastIndex, matchIndex);
-        if (unmatched) {
-          if (matchedChars.length) {
-            element.append(matchedChars.join("").bold());
-          }
-          matchedChars = [];
-          element.append(document.createTextNode(unmatched));
-        }
-        matchedChars.push(text[matchIndex]);
-        lastIndex = matchIndex + 1;
-      }
-      if (matchedChars.length) {
-        element.append(matchedChars.join("").bold());
+  renderList(filePaths, searchText) {
+    var blobItemUrl, filePath, html, i, j, len, matches, results;
+    this.element.find(".tree-table > tbody").empty();
+    results = [];
+    for (i = j = 0, len = filePaths.length; j < len; i = (j += 1)) {
+      filePath = filePaths[i];
+      if (i === 20) {
+        break;
       }
-      return element.append(document.createTextNode(text.substring(lastIndex)));
-    };
-
-    // make tbody row html
-    ProjectFindFile.prototype.makeHtml = function(filePath, matches, blobItemUrl) {
-      var $tr;
-      $tr = $("<tr class='tree-item'><td class='tree-item-file-name link-container'><a><i class='fa fa-file-text-o fa-fw'></i><span class='str-truncated'></span></a></td></tr>");
-      if (matches) {
-        $tr.find("a").replaceWith(highlighter($tr.find("a"), filePath, matches).attr("href", blobItemUrl));
-      } else {
-        $tr.find("a").attr("href", blobItemUrl);
-        $tr.find(".str-truncated").text(filePath);
+      if (searchText) {
+        matches = fuzzaldrinPlus.match(filePath, searchText);
       }
-      return $tr;
-    };
-
-    ProjectFindFile.prototype.selectRow = function(type) {
-      var next, rows, selectedRow;
-      rows = this.element.find(".files-slider tr.tree-item");
-      selectedRow = this.element.find(".files-slider tr.tree-item.selected");
-      if (rows && rows.length > 0) {
-        if (selectedRow && selectedRow.length > 0) {
-          if (type === "UP") {
-            next = selectedRow.prev();
-          } else if (type === "DOWN") {
-            next = selectedRow.next();
-          }
-          if (next.length > 0) {
-            selectedRow.removeClass("selected");
-            selectedRow = next;
-          }
-        } else {
-          selectedRow = rows.eq(0);
+      blobItemUrl = this.options.blobUrlTemplate + "/" + filePath;
+      html = ProjectFindFile.makeHtml(filePath, matches, blobItemUrl);
+      results.push(this.element.find(".tree-table > tbody").append(html));
+    }
+    return results;
+  }
+
+  // make tbody row html
+  static makeHtml(filePath, matches, blobItemUrl) {
+    var $tr;
+    $tr = $("<tr class='tree-item'><td class='tree-item-file-name link-container'><a><i class='fa fa-file-text-o fa-fw'></i><span class='str-truncated'></span></a></td></tr>");
+    if (matches) {
+      $tr.find("a").replaceWith(highlighter($tr.find("a"), filePath, matches).attr("href", blobItemUrl));
+    } else {
+      $tr.find("a").attr("href", blobItemUrl);
+      $tr.find(".str-truncated").text(filePath);
+    }
+    return $tr;
+  }
+
+  selectRow(type) {
+    var next, rows, selectedRow;
+    rows = this.element.find(".files-slider tr.tree-item");
+    selectedRow = this.element.find(".files-slider tr.tree-item.selected");
+    if (rows && rows.length > 0) {
+      if (selectedRow && selectedRow.length > 0) {
+        if (type === "UP") {
+          next = selectedRow.prev();
+        } else if (type === "DOWN") {
+          next = selectedRow.next();
+        }
+        if (next.length > 0) {
+          selectedRow.removeClass("selected");
+          selectedRow = next;
         }
-        return selectedRow.addClass("selected").focus();
+      } else {
+        selectedRow = rows.eq(0);
       }
-    };
-
-    ProjectFindFile.prototype.selectRowUp = function() {
-      return this.selectRow("UP");
-    };
+      return selectedRow.addClass("selected").focus();
+    }
+  }
 
-    ProjectFindFile.prototype.selectRowDown = function() {
-      return this.selectRow("DOWN");
-    };
+  selectRowUp() {
+    return this.selectRow("UP");
+  }
 
-    ProjectFindFile.prototype.goToTree = function() {
-      return location.href = this.options.treeUrl;
-    };
+  selectRowDown() {
+    return this.selectRow("DOWN");
+  }
 
-    ProjectFindFile.prototype.goToBlob = function() {
-      var $link = this.element.find(".tree-item.selected .tree-item-file-name a");
+  goToTree() {
+    return location.href = this.options.treeUrl;
+  }
 
-      if ($link.length) {
-        $link.get(0).click();
-      }
-    };
+  goToBlob() {
+    var $link = this.element.find(".tree-item.selected .tree-item-file-name a");
 
-    return ProjectFindFile;
-  })();
-}).call(window);
+    if ($link.length) {
+      $link.get(0).click();
+    }
+  }
+}
diff --git a/app/assets/javascripts/render_gfm.js b/app/assets/javascripts/render_gfm.js
index c91a0d9ba41..5482c55f8bb 100644
--- a/app/assets/javascripts/render_gfm.js
+++ b/app/assets/javascripts/render_gfm.js
@@ -1,12 +1,12 @@
 import renderMath from './render_math';
 import renderMermaid from './render_mermaid';
-
+import syntaxHighlight from './syntax_highlight';
 // Render Gitlab flavoured Markdown
 //
 // Delegates to syntax highlight and render math & mermaid diagrams.
 //
 $.fn.renderGFM = function renderGFM() {
-  this.find('.js-syntax-highlight').syntaxHighlight();
+  syntaxHighlight(this.find('.js-syntax-highlight'));
   renderMath(this.find('.js-render-math'));
   renderMermaid(this.find('.js-render-mermaid'));
   return this;
diff --git a/app/assets/javascripts/repo/components/repo_preview.vue b/app/assets/javascripts/repo/components/repo_preview.vue
index 6ce9267f598..425c55fafb5 100644
--- a/app/assets/javascripts/repo/components/repo_preview.vue
+++ b/app/assets/javascripts/repo/components/repo_preview.vue
@@ -1,6 +1,7 @@
 <script>
 /* global LineHighlighter */
 import { mapGetters } from 'vuex';
+import syntaxHighlight from '../../syntax_highlight';
 
 export default {
   computed: {
@@ -13,7 +14,7 @@ export default {
   },
   methods: {
     highlightFile() {
-      $(this.$el).find('.file-content').syntaxHighlight();
+      syntaxHighlight($(this.$el).find('.file-content'));
     },
   },
   mounted() {
diff --git a/app/assets/javascripts/search.js b/app/assets/javascripts/search.js
index 07fee53d814..363322af47a 100644
--- a/app/assets/javascripts/search.js
+++ b/app/assets/javascripts/search.js
@@ -1,118 +1,113 @@
-/* eslint-disable func-names, space-before-function-paren, wrap-iife, no-var, one-var, one-var-declaration-per-line, object-shorthand, prefer-arrow-callback, comma-dangle, prefer-template, quotes, no-else-return, max-len */
 import Flash from './flash';
 import Api from './api';
 
-(function() {
-  this.Search = (function() {
-    function Search() {
-      var $groupDropdown, $projectDropdown;
-      $groupDropdown = $('.js-search-group-dropdown');
-      $projectDropdown = $('.js-search-project-dropdown');
-      this.groupId = $groupDropdown.data('group-id');
-      this.eventListeners();
-      $groupDropdown.glDropdown({
-        selectable: true,
-        filterable: true,
-        fieldName: 'group_id',
-        search: {
-          fields: ['full_name']
-        },
-        data: function(term, callback) {
-          return Api.groups(term, {}, function(data) {
+export default class Search {
+  constructor() {
+    const $groupDropdown = $('.js-search-group-dropdown');
+    const $projectDropdown = $('.js-search-project-dropdown');
+
+    this.searchInput = '.js-search-input';
+    this.searchClear = '.js-search-clear';
+
+    this.groupId = $groupDropdown.data('group-id');
+    this.eventListeners();
+
+    $groupDropdown.glDropdown({
+      selectable: true,
+      filterable: true,
+      fieldName: 'group_id',
+      search: {
+        fields: ['full_name'],
+      },
+      data(term, callback) {
+        return Api.groups(term, {}, (data) => {
+          data.unshift({
+            full_name: 'Any',
+          });
+          data.splice(1, 0, 'divider');
+          return callback(data);
+        });
+      },
+      id(obj) {
+        return obj.id;
+      },
+      text(obj) {
+        return obj.full_name;
+      },
+      toggleLabel(obj) {
+        return `${($groupDropdown.data('default-label'))} ${obj.full_name}`;
+      },
+      clicked: () => Search.submitSearch(),
+    });
+
+    $projectDropdown.glDropdown({
+      selectable: true,
+      filterable: true,
+      fieldName: 'project_id',
+      search: {
+        fields: ['name'],
+      },
+      data: (term, callback) => {
+        this.getProjectsData(term)
+          .then((data) => {
             data.unshift({
-              full_name: 'Any'
+              name_with_namespace: 'Any',
             });
             data.splice(1, 0, 'divider');
-            return callback(data);
-          });
-        },
-        id: function(obj) {
-          return obj.id;
-        },
-        text: function(obj) {
-          return obj.full_name;
-        },
-        toggleLabel: function(obj) {
-          return ($groupDropdown.data('default-label')) + " " + obj.full_name;
-        },
-        clicked: (function(_this) {
-          return function() {
-            return _this.submitSearch();
-          };
-        })(this)
-      });
-      $projectDropdown.glDropdown({
-        selectable: true,
-        filterable: true,
-        fieldName: 'project_id',
-        search: {
-          fields: ['name']
-        },
-        data: (term, callback) => {
-          this.getProjectsData(term)
-            .then((data) => {
-              data.unshift({
-                name_with_namespace: 'Any'
-              });
-              data.splice(1, 0, 'divider');
 
-              return data;
-            })
-            .then(data => callback(data))
-            .catch(() => new Flash('Error fetching projects'));
-        },
-        id: function(obj) {
-          return obj.id;
-        },
-        text: function(obj) {
-          return obj.name_with_namespace;
-        },
-        toggleLabel: function(obj) {
-          return ($projectDropdown.data('default-label')) + " " + obj.name_with_namespace;
-        },
-        clicked: (function(_this) {
-          return function() {
-            return _this.submitSearch();
-          };
-        })(this)
-      });
-    }
+            return data;
+          })
+          .then(data => callback(data))
+          .catch(() => new Flash('Error fetching projects'));
+      },
+      id(obj) {
+        return obj.id;
+      },
+      text(obj) {
+        return obj.name_with_namespace;
+      },
+      toggleLabel(obj) {
+        return `${($projectDropdown.data('default-label'))} ${obj.name_with_namespace}`;
+      },
+      clicked: () => Search.submitSearch(),
+    });
+  }
 
-    Search.prototype.eventListeners = function() {
-      $(document).off('keyup', '.js-search-input').on('keyup', '.js-search-input', this.searchKeyUp);
-      return $(document).off('click', '.js-search-clear').on('click', '.js-search-clear', this.clearSearchField);
-    };
+  eventListeners() {
+    $(document)
+      .off('keyup', this.searchInput)
+      .on('keyup', this.searchInput, this.searchKeyUp);
+    $(document)
+      .off('click', this.searchClear)
+      .on('click', this.searchClear, this.clearSearchField.bind(this));
+  }
 
-    Search.prototype.submitSearch = function() {
-      return $('.js-search-form').submit();
-    };
+  static submitSearch() {
+    return $('.js-search-form').submit();
+  }
 
-    Search.prototype.searchKeyUp = function() {
-      var $input;
-      $input = $(this);
-      if ($input.val() === '') {
-        return $('.js-search-clear').addClass('hidden');
-      } else {
-        return $('.js-search-clear').removeClass('hidden');
-      }
-    };
-
-    Search.prototype.clearSearchField = function() {
-      return $('.js-search-input').val('').trigger('keyup').focus();
-    };
+  searchKeyUp() {
+    const $input = $(this);
+    if ($input.val() === '') {
+      $('.js-search-clear').addClass('hidden');
+    } else {
+      $('.js-search-clear').removeClass('hidden');
+    }
+  }
 
-    Search.prototype.getProjectsData = function(term) {
-      return new Promise((resolve) => {
-        if (this.groupId) {
-          Api.groupProjects(this.groupId, term, resolve);
-        } else {
-          Api.projects(term, {
-            order_by: 'id',
-          }, resolve);
-        }
-      });
-    };
+  clearSearchField() {
+    return $(this.searchInput).val('').trigger('keyup').focus();
+  }
 
-    return Search;
-  })();
-}).call(window);
+  getProjectsData(term) {
+    return new Promise((resolve) => {
+      if (this.groupId) {
+        Api.groupProjects(this.groupId, term, resolve);
+      } else {
+        Api.projects(term, {
+          order_by: 'id',
+        }, resolve);
+      }
+    });
+  }
+}
diff --git a/app/assets/javascripts/search_autocomplete.js b/app/assets/javascripts/search_autocomplete.js
index e40a3596200..98b524f7e3f 100644
--- a/app/assets/javascripts/search_autocomplete.js
+++ b/app/assets/javascripts/search_autocomplete.js
@@ -8,448 +8,445 @@ import { isInGroupsPage, isInProjectPage, getGroupSlug, getProjectSlug } from '.
  * When the user clicks `x` button it cleans the input and closes the dropdown.
  */
 
-((global) => {
-  const KEYCODE = {
-    ESCAPE: 27,
-    BACKSPACE: 8,
-    ENTER: 13,
-    UP: 38,
-    DOWN: 40,
-  };
-
-  class SearchAutocomplete {
-    constructor({ wrap, optsEl, autocompletePath, projectId, projectRef } = {}) {
-      this.bindEventContext();
-      this.wrap = wrap || $('.search');
-      this.optsEl = optsEl || this.wrap.find('.search-autocomplete-opts');
-      this.autocompletePath = autocompletePath || this.optsEl.data('autocomplete-path');
-      this.projectId = projectId || (this.optsEl.data('autocomplete-project-id') || '');
-      this.projectRef = projectRef || (this.optsEl.data('autocomplete-project-ref') || '');
-      this.dropdown = this.wrap.find('.dropdown');
-      this.dropdownToggle = this.wrap.find('.js-dropdown-search-toggle');
-      this.dropdownContent = this.dropdown.find('.dropdown-content');
-      this.locationBadgeEl = this.getElement('.location-badge');
-      this.scopeInputEl = this.getElement('#scope');
-      this.searchInput = this.getElement('.search-input');
-      this.projectInputEl = this.getElement('#search_project_id');
-      this.groupInputEl = this.getElement('#group_id');
-      this.searchCodeInputEl = this.getElement('#search_code');
-      this.repositoryInputEl = this.getElement('#repository_ref');
-      this.clearInput = this.getElement('.js-clear-input');
-      this.saveOriginalState();
-
-      // Only when user is logged in
-      if (gon.current_user_id) {
-        this.createAutocomplete();
-      }
+const KEYCODE = {
+  ESCAPE: 27,
+  BACKSPACE: 8,
+  ENTER: 13,
+  UP: 38,
+  DOWN: 40,
+};
+
+function setSearchOptions() {
+  var $projectOptionsDataEl = $('.js-search-project-options');
+  var $groupOptionsDataEl = $('.js-search-group-options');
+  var $dashboardOptionsDataEl = $('.js-search-dashboard-options');
+
+  if ($projectOptionsDataEl.length) {
+    gl.projectOptions = gl.projectOptions || {};
+
+    var projectPath = $projectOptionsDataEl.data('project-path');
+
+    gl.projectOptions[projectPath] = {
+      name: $projectOptionsDataEl.data('name'),
+      issuesPath: $projectOptionsDataEl.data('issues-path'),
+      issuesDisabled: $projectOptionsDataEl.data('issues-disabled'),
+      mrPath: $projectOptionsDataEl.data('mr-path'),
+    };
+  }
 
-      this.searchInput.addClass('disabled');
-      this.saveTextLength();
-      this.bindEvents();
-      this.dropdownToggle.dropdown();
-    }
+  if ($groupOptionsDataEl.length) {
+    gl.groupOptions = gl.groupOptions || {};
 
-    // Finds an element inside wrapper element
-    bindEventContext() {
-      this.onSearchInputBlur = this.onSearchInputBlur.bind(this);
-      this.onClearInputClick = this.onClearInputClick.bind(this);
-      this.onSearchInputFocus = this.onSearchInputFocus.bind(this);
-      this.onSearchInputKeyUp = this.onSearchInputKeyUp.bind(this);
-      this.onSearchInputKeyDown = this.onSearchInputKeyDown.bind(this);
-    }
-    getElement(selector) {
-      return this.wrap.find(selector);
-    }
+    var groupPath = $groupOptionsDataEl.data('group-path');
 
-    saveOriginalState() {
-      return this.originalState = this.serializeState();
-    }
+    gl.groupOptions[groupPath] = {
+      name: $groupOptionsDataEl.data('name'),
+      issuesPath: $groupOptionsDataEl.data('issues-path'),
+      mrPath: $groupOptionsDataEl.data('mr-path'),
+    };
+  }
 
-    saveTextLength() {
-      return this.lastTextLength = this.searchInput.val().length;
+  if ($dashboardOptionsDataEl.length) {
+    gl.dashboardOptions = {
+      issuesPath: $dashboardOptionsDataEl.data('issues-path'),
+      mrPath: $dashboardOptionsDataEl.data('mr-path'),
+    };
+  }
+}
+
+export default class SearchAutocomplete {
+  constructor({ wrap, optsEl, autocompletePath, projectId, projectRef } = {}) {
+    setSearchOptions();
+    this.bindEventContext();
+    this.wrap = wrap || $('.search');
+    this.optsEl = optsEl || this.wrap.find('.search-autocomplete-opts');
+    this.autocompletePath = autocompletePath || this.optsEl.data('autocomplete-path');
+    this.projectId = projectId || (this.optsEl.data('autocomplete-project-id') || '');
+    this.projectRef = projectRef || (this.optsEl.data('autocomplete-project-ref') || '');
+    this.dropdown = this.wrap.find('.dropdown');
+    this.dropdownToggle = this.wrap.find('.js-dropdown-search-toggle');
+    this.dropdownContent = this.dropdown.find('.dropdown-content');
+    this.locationBadgeEl = this.getElement('.location-badge');
+    this.scopeInputEl = this.getElement('#scope');
+    this.searchInput = this.getElement('.search-input');
+    this.projectInputEl = this.getElement('#search_project_id');
+    this.groupInputEl = this.getElement('#group_id');
+    this.searchCodeInputEl = this.getElement('#search_code');
+    this.repositoryInputEl = this.getElement('#repository_ref');
+    this.clearInput = this.getElement('.js-clear-input');
+    this.saveOriginalState();
+
+    // Only when user is logged in
+    if (gon.current_user_id) {
+      this.createAutocomplete();
     }
 
-    createAutocomplete() {
-      return this.searchInput.glDropdown({
-        filterInputBlur: false,
-        filterable: true,
-        filterRemote: true,
-        highlight: true,
-        enterCallback: false,
-        filterInput: 'input#search',
-        search: {
-          fields: ['text'],
-        },
-        id: this.getSearchText,
-        data: this.getData.bind(this),
-        selectable: true,
-        clicked: this.onClick.bind(this),
-      });
+    this.searchInput.addClass('disabled');
+    this.saveTextLength();
+    this.bindEvents();
+    this.dropdownToggle.dropdown();
+  }
+
+  // Finds an element inside wrapper element
+  bindEventContext() {
+    this.onSearchInputBlur = this.onSearchInputBlur.bind(this);
+    this.onClearInputClick = this.onClearInputClick.bind(this);
+    this.onSearchInputFocus = this.onSearchInputFocus.bind(this);
+    this.onSearchInputKeyUp = this.onSearchInputKeyUp.bind(this);
+    this.onSearchInputKeyDown = this.onSearchInputKeyDown.bind(this);
+  }
+  getElement(selector) {
+    return this.wrap.find(selector);
+  }
+
+  saveOriginalState() {
+    return this.originalState = this.serializeState();
+  }
+
+  saveTextLength() {
+    return this.lastTextLength = this.searchInput.val().length;
+  }
+
+  createAutocomplete() {
+    return this.searchInput.glDropdown({
+      filterInputBlur: false,
+      filterable: true,
+      filterRemote: true,
+      highlight: true,
+      enterCallback: false,
+      filterInput: 'input#search',
+      search: {
+        fields: ['text'],
+      },
+      id: this.getSearchText,
+      data: this.getData.bind(this),
+      selectable: true,
+      clicked: this.onClick.bind(this),
+    });
+  }
+
+  getSearchText(selectedObject, el) {
+    return selectedObject.id ? selectedObject.text : '';
+  }
+
+  getData(term, callback) {
+    if (!term) {
+      const contents = this.getCategoryContents();
+      if (contents) {
+        this.searchInput.data('glDropdown').filter.options.callback(contents);
+        this.enableAutocomplete();
+      }
+      return;
     }
 
-    getSearchText(selectedObject, el) {
-      return selectedObject.id ? selectedObject.text : '';
+    // Prevent multiple ajax calls
+    if (this.loadingSuggestions) {
+      return;
     }
 
-    getData(term, callback) {
-      if (!term) {
-        const contents = this.getCategoryContents();
-        if (contents) {
-          this.searchInput.data('glDropdown').filter.options.callback(contents);
-          this.enableAutocomplete();
-        }
-        return;
-      }
+    this.loadingSuggestions = true;
 
-      // Prevent multiple ajax calls
-      if (this.loadingSuggestions) {
+    return $.get(this.autocompletePath, {
+      project_id: this.projectId,
+      project_ref: this.projectRef,
+      term: term,
+    }, (response) => {
+      var firstCategory, i, lastCategory, len, suggestion;
+      // Hide dropdown menu if no suggestions returns
+      if (!response.length) {
+        this.disableAutocomplete();
         return;
       }
 
-      this.loadingSuggestions = true;
-
-      return $.get(this.autocompletePath, {
-        project_id: this.projectId,
-        project_ref: this.projectRef,
-        term: term,
-      }, (response) => {
-        var firstCategory, i, lastCategory, len, suggestion;
-        // Hide dropdown menu if no suggestions returns
-        if (!response.length) {
-          this.disableAutocomplete();
-          return;
-        }
-
-        const data = [];
-        // List results
-        firstCategory = true;
-        for (i = 0, len = response.length; i < len; i += 1) {
-          suggestion = response[i];
-          // Add group header before list each group
-          if (lastCategory !== suggestion.category) {
-            if (!firstCategory) {
-              data.push('separator');
-            }
-            if (firstCategory) {
-              firstCategory = false;
-            }
-            data.push({
-              header: suggestion.category,
-            });
-            lastCategory = suggestion.category;
+      const data = [];
+      // List results
+      firstCategory = true;
+      for (i = 0, len = response.length; i < len; i += 1) {
+        suggestion = response[i];
+        // Add group header before list each group
+        if (lastCategory !== suggestion.category) {
+          if (!firstCategory) {
+            data.push('separator');
+          }
+          if (firstCategory) {
+            firstCategory = false;
           }
           data.push({
-            id: (suggestion.category.toLowerCase()) + "-" + suggestion.id,
-            category: suggestion.category,
-            text: suggestion.label,
-            url: suggestion.url,
-          });
-        }
-        // Add option to proceed with the search
-        if (data.length) {
-          data.push('separator');
-          data.push({
-            text: "Result name contains \"" + term + "\"",
-            url: "/search?search=" + term + "&project_id=" + (this.projectInputEl.val()) + "&group_id=" + (this.groupInputEl.val()),
+            header: suggestion.category,
           });
+          lastCategory = suggestion.category;
         }
-        return callback(data);
-      })
-      .always(() => { this.loadingSuggestions = false; });
-    }
-
-    getCategoryContents() {
-      const userId = gon.current_user_id;
-      const userName = gon.current_username;
-      const { projectOptions, groupOptions, dashboardOptions } = gl;
-
-      // Get options
-      let options;
-      if (isInGroupsPage() && groupOptions) {
-        options = groupOptions[getGroupSlug()];
-      } else if (isInProjectPage() && projectOptions) {
-        options = projectOptions[getProjectSlug()];
-      } else if (dashboardOptions) {
-        options = dashboardOptions;
+        data.push({
+          id: (suggestion.category.toLowerCase()) + "-" + suggestion.id,
+          category: suggestion.category,
+          text: suggestion.label,
+          url: suggestion.url,
+        });
       }
-
-      const { issuesPath, mrPath, name, issuesDisabled } = options;
-      const baseItems = [];
-
-      if (name) {
-        baseItems.push({
-          header: `${name}`,
+      // Add option to proceed with the search
+      if (data.length) {
+        data.push('separator');
+        data.push({
+          text: "Result name contains \"" + term + "\"",
+          url: "/search?search=" + term + "&project_id=" + (this.projectInputEl.val()) + "&group_id=" + (this.groupInputEl.val()),
         });
       }
+      return callback(data);
+    })
+    .always(() => { this.loadingSuggestions = false; });
+  }
 
-      const issueItems = [
-        {
-          text: 'Issues assigned to me',
-          url: `${issuesPath}/?assignee_username=${userName}`,
-        },
-        {
-          text: "Issues I've created",
-          url: `${issuesPath}/?author_username=${userName}`,
-        },
-      ];
-      const mergeRequestItems = [
-        {
-          text: 'Merge requests assigned to me',
-          url: `${mrPath}/?assignee_username=${userName}`,
-        },
-        {
-          text: "Merge requests I've created",
-          url: `${mrPath}/?author_username=${userName}`,
-        },
-      ];
-
-      let items;
-      if (issuesDisabled) {
-        items = baseItems.concat(mergeRequestItems);
-      } else {
-        items = baseItems.concat(...issueItems, 'separator', ...mergeRequestItems);
-      }
-      return items;
+  getCategoryContents() {
+    const userId = gon.current_user_id;
+    const userName = gon.current_username;
+    const { projectOptions, groupOptions, dashboardOptions } = gl;
+
+    // Get options
+    let options;
+    if (isInGroupsPage() && groupOptions) {
+      options = groupOptions[getGroupSlug()];
+    } else if (isInProjectPage() && projectOptions) {
+      options = projectOptions[getProjectSlug()];
+    } else if (dashboardOptions) {
+      options = dashboardOptions;
     }
 
-    serializeState() {
-      return {
-        // Search Criteria
-        search_project_id: this.projectInputEl.val(),
-        group_id: this.groupInputEl.val(),
-        search_code: this.searchCodeInputEl.val(),
-        repository_ref: this.repositoryInputEl.val(),
-        scope: this.scopeInputEl.val(),
-        // Location badge
-        _location: this.locationBadgeEl.text(),
-      };
+    const { issuesPath, mrPath, name, issuesDisabled } = options;
+    const baseItems = [];
+
+    if (name) {
+      baseItems.push({
+        header: `${name}`,
+      });
     }
 
-    bindEvents() {
-      this.searchInput.on('keydown', this.onSearchInputKeyDown);
-      this.searchInput.on('keyup', this.onSearchInputKeyUp);
-      this.searchInput.on('focus', this.onSearchInputFocus);
-      this.searchInput.on('blur', this.onSearchInputBlur);
-      this.clearInput.on('click', this.onClearInputClick);
-      this.locationBadgeEl.on('click', () => this.searchInput.focus());
+    const issueItems = [
+      {
+        text: 'Issues assigned to me',
+        url: `${issuesPath}/?assignee_username=${userName}`,
+      },
+      {
+        text: "Issues I've created",
+        url: `${issuesPath}/?author_username=${userName}`,
+      },
+    ];
+    const mergeRequestItems = [
+      {
+        text: 'Merge requests assigned to me',
+        url: `${mrPath}/?assignee_username=${userName}`,
+      },
+      {
+        text: "Merge requests I've created",
+        url: `${mrPath}/?author_username=${userName}`,
+      },
+    ];
+
+    let items;
+    if (issuesDisabled) {
+      items = baseItems.concat(mergeRequestItems);
+    } else {
+      items = baseItems.concat(...issueItems, 'separator', ...mergeRequestItems);
     }
+    return items;
+  }
 
-    enableAutocomplete() {
-      // No need to enable anything if user is not logged in
-      if (!gon.current_user_id) {
-        return;
-      }
+  serializeState() {
+    return {
+      // Search Criteria
+      search_project_id: this.projectInputEl.val(),
+      group_id: this.groupInputEl.val(),
+      search_code: this.searchCodeInputEl.val(),
+      repository_ref: this.repositoryInputEl.val(),
+      scope: this.scopeInputEl.val(),
+      // Location badge
+      _location: this.locationBadgeEl.text(),
+    };
+  }
 
-      // If the dropdown is closed, we'll open it
-      if (!this.dropdown.hasClass('open')) {
-        this.loadingSuggestions = false;
-        this.dropdownToggle.dropdown('toggle');
-        return this.searchInput.removeClass('disabled');
-      }
+  bindEvents() {
+    this.searchInput.on('keydown', this.onSearchInputKeyDown);
+    this.searchInput.on('keyup', this.onSearchInputKeyUp);
+    this.searchInput.on('focus', this.onSearchInputFocus);
+    this.searchInput.on('blur', this.onSearchInputBlur);
+    this.clearInput.on('click', this.onClearInputClick);
+    this.locationBadgeEl.on('click', () => this.searchInput.focus());
+  }
+
+  enableAutocomplete() {
+    // No need to enable anything if user is not logged in
+    if (!gon.current_user_id) {
+      return;
     }
 
-    // Saves last length of the entered text
-    onSearchInputKeyDown() {
-      return this.saveTextLength();
+    // If the dropdown is closed, we'll open it
+    if (!this.dropdown.hasClass('open')) {
+      this.loadingSuggestions = false;
+      this.dropdownToggle.dropdown('toggle');
+      return this.searchInput.removeClass('disabled');
     }
+  }
 
-    onSearchInputKeyUp(e) {
-      switch (e.keyCode) {
-        case KEYCODE.BACKSPACE:
-          // when trying to remove the location badge
-          if (this.lastTextLength === 0 && this.badgePresent()) {
-            this.removeLocationBadge();
-          }
-          // When removing the last character and no badge is present
-          if (this.lastTextLength === 1) {
-            this.disableAutocomplete();
-          }
-          // When removing any character from existin value
-          if (this.lastTextLength > 1) {
-            this.enableAutocomplete();
-          }
-          break;
-        case KEYCODE.ESCAPE:
-          this.restoreOriginalState();
-          break;
-        case KEYCODE.ENTER:
+  // Saves last length of the entered text
+  onSearchInputKeyDown() {
+    return this.saveTextLength();
+  }
+
+  onSearchInputKeyUp(e) {
+    switch (e.keyCode) {
+      case KEYCODE.BACKSPACE:
+        // when trying to remove the location badge
+        if (this.lastTextLength === 0 && this.badgePresent()) {
+          this.removeLocationBadge();
+        }
+        // When removing the last character and no badge is present
+        if (this.lastTextLength === 1) {
+          this.disableAutocomplete();
+        }
+        // When removing any character from existin value
+        if (this.lastTextLength > 1) {
+          this.enableAutocomplete();
+        }
+        break;
+      case KEYCODE.ESCAPE:
+        this.restoreOriginalState();
+        break;
+      case KEYCODE.ENTER:
+        this.disableAutocomplete();
+        break;
+      case KEYCODE.UP:
+      case KEYCODE.DOWN:
+        return;
+      default:
+        // Handle the case when deleting the input value other than backspace
+        // e.g. Pressing ctrl + backspace or ctrl + x
+        if (this.searchInput.val() === '') {
           this.disableAutocomplete();
-          break;
-        case KEYCODE.UP:
-        case KEYCODE.DOWN:
-          return;
-        default:
-          // Handle the case when deleting the input value other than backspace
-          // e.g. Pressing ctrl + backspace or ctrl + x
-          if (this.searchInput.val() === '') {
-            this.disableAutocomplete();
-          } else {
-            // We should display the menu only when input is not empty
-            if (e.keyCode !== KEYCODE.ENTER) {
-              this.enableAutocomplete();
-            }
+        } else {
+          // We should display the menu only when input is not empty
+          if (e.keyCode !== KEYCODE.ENTER) {
+            this.enableAutocomplete();
           }
-      }
-      this.wrap.toggleClass('has-value', !!e.target.value);
+        }
     }
+    this.wrap.toggleClass('has-value', !!e.target.value);
+  }
 
-    onSearchInputFocus() {
-      this.isFocused = true;
-      this.wrap.addClass('search-active');
-      if (this.getValue() === '') {
-        return this.getData();
-      }
+  onSearchInputFocus() {
+    this.isFocused = true;
+    this.wrap.addClass('search-active');
+    if (this.getValue() === '') {
+      return this.getData();
     }
+  }
 
-    getValue() {
-      return this.searchInput.val();
-    }
+  getValue() {
+    return this.searchInput.val();
+  }
 
-    onClearInputClick(e) {
-      e.preventDefault();
-      this.wrap.toggleClass('has-value', !!e.target.value);
-      return this.searchInput.val('').focus();
-    }
+  onClearInputClick(e) {
+    e.preventDefault();
+    this.wrap.toggleClass('has-value', !!e.target.value);
+    return this.searchInput.val('').focus();
+  }
 
-    onSearchInputBlur(e) {
-      this.isFocused = false;
-      this.wrap.removeClass('search-active');
-      // If input is blank then restore state
-      if (this.searchInput.val() === '') {
-        return this.restoreOriginalState();
-      }
+  onSearchInputBlur(e) {
+    this.isFocused = false;
+    this.wrap.removeClass('search-active');
+    // If input is blank then restore state
+    if (this.searchInput.val() === '') {
+      return this.restoreOriginalState();
     }
+  }
 
-    addLocationBadge(item) {
-      var badgeText, category, value;
-      category = item.category != null ? item.category + ": " : '';
-      value = item.value != null ? item.value : '';
-      badgeText = "" + category + value;
-      this.locationBadgeEl.text(badgeText).show();
-      return this.wrap.addClass('has-location-badge');
-    }
+  addLocationBadge(item) {
+    var badgeText, category, value;
+    category = item.category != null ? item.category + ": " : '';
+    value = item.value != null ? item.value : '';
+    badgeText = "" + category + value;
+    this.locationBadgeEl.text(badgeText).show();
+    return this.wrap.addClass('has-location-badge');
+  }
 
-    hasLocationBadge() {
-      return this.wrap.is('.has-location-badge');
-    }
+  hasLocationBadge() {
+    return this.wrap.is('.has-location-badge');
+  }
 
-    restoreOriginalState() {
-      var i, input, inputs, len;
-      inputs = Object.keys(this.originalState);
-      for (i = 0, len = inputs.length; i < len; i += 1) {
-        input = inputs[i];
-        this.getElement("#" + input).val(this.originalState[input]);
-      }
-      if (this.originalState._location === '') {
-        return this.locationBadgeEl.hide();
-      } else {
-        return this.addLocationBadge({
-          value: this.originalState._location,
-        });
-      }
+  restoreOriginalState() {
+    var i, input, inputs, len;
+    inputs = Object.keys(this.originalState);
+    for (i = 0, len = inputs.length; i < len; i += 1) {
+      input = inputs[i];
+      this.getElement("#" + input).val(this.originalState[input]);
     }
-
-    badgePresent() {
-      return this.locationBadgeEl.length;
+    if (this.originalState._location === '') {
+      return this.locationBadgeEl.hide();
+    } else {
+      return this.addLocationBadge({
+        value: this.originalState._location,
+      });
     }
+  }
 
-    resetSearchState() {
-      var i, input, inputs, len, results;
-      inputs = Object.keys(this.originalState);
-      results = [];
-      for (i = 0, len = inputs.length; i < len; i += 1) {
-        input = inputs[i];
-        // _location isnt a input
-        if (input === '_location') {
-          break;
-        }
-        results.push(this.getElement("#" + input).val(''));
+  badgePresent() {
+    return this.locationBadgeEl.length;
+  }
+
+  resetSearchState() {
+    var i, input, inputs, len, results;
+    inputs = Object.keys(this.originalState);
+    results = [];
+    for (i = 0, len = inputs.length; i < len; i += 1) {
+      input = inputs[i];
+      // _location isnt a input
+      if (input === '_location') {
+        break;
       }
-      return results;
+      results.push(this.getElement("#" + input).val(''));
     }
+    return results;
+  }
 
-    removeLocationBadge() {
-      this.locationBadgeEl.hide();
-      this.resetSearchState();
-      this.wrap.removeClass('has-location-badge');
-      return this.disableAutocomplete();
-    }
+  removeLocationBadge() {
+    this.locationBadgeEl.hide();
+    this.resetSearchState();
+    this.wrap.removeClass('has-location-badge');
+    return this.disableAutocomplete();
+  }
 
-    disableAutocomplete() {
-      if (!this.searchInput.hasClass('disabled') && this.dropdown.hasClass('open')) {
-        this.searchInput.addClass('disabled');
-        this.dropdown.removeClass('open').trigger('hidden.bs.dropdown');
-        this.restoreMenu();
-      }
+  disableAutocomplete() {
+    if (!this.searchInput.hasClass('disabled') && this.dropdown.hasClass('open')) {
+      this.searchInput.addClass('disabled');
+      this.dropdown.removeClass('open').trigger('hidden.bs.dropdown');
+      this.restoreMenu();
     }
+  }
 
-    restoreMenu() {
-      var html;
-      html = '<ul><li class="dropdown-menu-empty-item"><a>Loading...</a></li></ul>';
-      return this.dropdownContent.html(html);
-    }
+  restoreMenu() {
+    var html;
+    html = '<ul><li class="dropdown-menu-empty-item"><a>Loading...</a></li></ul>';
+    return this.dropdownContent.html(html);
+  }
 
-    onClick(item, $el, e) {
-      if (location.pathname.indexOf(item.url) !== -1) {
-        if (!e.metaKey) e.preventDefault();
-        if (!this.badgePresent) {
-          if (item.category === 'Projects') {
-            this.projectInputEl.val(item.id);
-            this.addLocationBadge({
-              value: 'This project',
-            });
-          }
-          if (item.category === 'Groups') {
-            this.groupInputEl.val(item.id);
-            this.addLocationBadge({
-              value: 'This group',
-            });
-          }
+  onClick(item, $el, e) {
+    if (location.pathname.indexOf(item.url) !== -1) {
+      if (!e.metaKey) e.preventDefault();
+      if (!this.badgePresent) {
+        if (item.category === 'Projects') {
+          this.projectInputEl.val(item.id);
+          this.addLocationBadge({
+            value: 'This project',
+          });
+        }
+        if (item.category === 'Groups') {
+          this.groupInputEl.val(item.id);
+          this.addLocationBadge({
+            value: 'This group',
+          });
         }
-        $el.removeClass('is-active');
-        this.disableAutocomplete();
-        return this.searchInput.val('').focus();
       }
+      $el.removeClass('is-active');
+      this.disableAutocomplete();
+      return this.searchInput.val('').focus();
     }
   }
-
-  global.SearchAutocomplete = SearchAutocomplete;
-
-  $(function() {
-    var $projectOptionsDataEl = $('.js-search-project-options');
-    var $groupOptionsDataEl = $('.js-search-group-options');
-    var $dashboardOptionsDataEl = $('.js-search-dashboard-options');
-
-    if ($projectOptionsDataEl.length) {
-      gl.projectOptions = gl.projectOptions || {};
-
-      var projectPath = $projectOptionsDataEl.data('project-path');
-
-      gl.projectOptions[projectPath] = {
-        name: $projectOptionsDataEl.data('name'),
-        issuesPath: $projectOptionsDataEl.data('issues-path'),
-        issuesDisabled: $projectOptionsDataEl.data('issues-disabled'),
-        mrPath: $projectOptionsDataEl.data('mr-path'),
-      };
-    }
-
-    if ($groupOptionsDataEl.length) {
-      gl.groupOptions = gl.groupOptions || {};
-
-      var groupPath = $groupOptionsDataEl.data('group-path');
-
-      gl.groupOptions[groupPath] = {
-        name: $groupOptionsDataEl.data('name'),
-        issuesPath: $groupOptionsDataEl.data('issues-path'),
-        mrPath: $groupOptionsDataEl.data('mr-path'),
-      };
-    }
-
-    if ($dashboardOptionsDataEl.length) {
-      gl.dashboardOptions = {
-        issuesPath: $dashboardOptionsDataEl.data('issues-path'),
-        mrPath: $dashboardOptionsDataEl.data('mr-path'),
-      };
-    }
-  });
-})(window.gl || (window.gl = {}));
+}
diff --git a/app/assets/javascripts/single_file_diff.js b/app/assets/javascripts/single_file_diff.js
index 3f811c59cb9..95e51bc4e7a 100644
--- a/app/assets/javascripts/single_file_diff.js
+++ b/app/assets/javascripts/single_file_diff.js
@@ -2,6 +2,7 @@
 
 import FilesCommentButton from './files_comment_button';
 import imageDiffHelper from './image_diff/helpers/index';
+import syntaxHighlight from './syntax_highlight';
 
 const WRAPPER = '<div class="diff-content"></div>';
 const LOADING_HTML = '<i class="fa fa-spinner fa-spin"></i>';
@@ -64,7 +65,7 @@ export default class SingleFileDiff {
         _this.loadingContent.hide();
         if (data.html) {
           _this.content = $(data.html);
-          _this.content.syntaxHighlight();
+          syntaxHighlight(_this.content);
         } else {
           _this.hasError = true;
           _this.content = $(ERROR_HTML);
diff --git a/app/assets/javascripts/syntax_highlight.js b/app/assets/javascripts/syntax_highlight.js
index 662d6b36c16..62bdef76c55 100644
--- a/app/assets/javascripts/syntax_highlight.js
+++ b/app/assets/javascripts/syntax_highlight.js
@@ -10,17 +10,15 @@
 //   <div class="js-syntax-highlight"></div>
 //
 
-$.fn.syntaxHighlight = function() {
-  var $children;
-
-  if ($(this).hasClass('js-syntax-highlight')) {
+export default function syntaxHighlight(el) {
+  if ($(el).hasClass('js-syntax-highlight')) {
     // Given the element itself, apply highlighting
-    return $(this).addClass(gon.user_color_scheme);
+    return $(el).addClass(gon.user_color_scheme);
   } else {
     // Given a parent element, recurse to any of its applicable children
-    $children = $(this).find('.js-syntax-highlight');
+    const $children = $(el).find('.js-syntax-highlight');
     if ($children.length) {
-      return $children.syntaxHighlight();
+      return syntaxHighlight($children);
     }
   }
-};
+}