Remove all unnecessary sidebar.js

app/assets/javascripts/sidebar.js.es6

@@ -2,70 +2,7 @@
 /* global Cookies */
 
 (() => {
-  const pinnedStateCookie = 'pin_nav';
-  const sidebarBreakpoint = 1024;
-
-  const pageSelector = '.page-with-sidebar';
-  const navbarSelector = '.navbar-gitlab';
-  const sidebarWrapperSelector = '.sidebar-wrapper';
-  const sidebarContentSelector = '.nav-sidebar';
-
-  const pinnedToggleSelector = '.js-nav-pin';
-  const sidebarToggleSelector = '.toggle-nav-collapse, .side-nav-toggle';
-
-  const pinnedPageClass = 'page-sidebar-pinned';
-  const expandedPageClass = 'page-sidebar-expanded';
-
-  const pinnedNavbarClass = 'header-sidebar-pinned';
-  const expandedNavbarClass = 'header-sidebar-expanded';
-
   class Sidebar {
-    constructor() {
-      if (!Sidebar.singleton) {
-        Sidebar.singleton = this;
-        Sidebar.singleton.init();
-      }
-
-      return Sidebar.singleton;
-    }
-
-    init() {
-      this.isPinned = Cookies.get(pinnedStateCookie) === 'true';
-      this.isExpanded = (
-        window.innerWidth >= sidebarBreakpoint &&
-        $(pageSelector).hasClass(expandedPageClass)
-      );
-      $(window).on('resize', () => this.setSidebarHeight());
-      $(document)
-        .on('click', sidebarToggleSelector, () => this.toggleSidebar())
-        .on('click', pinnedToggleSelector, () => this.togglePinnedState())
-        .on('click', 'html, body, a, button', (e) => this.handleClickEvent(e))
-        .on('DOMContentLoaded', () => this.renderState())
-        .on('scroll', () => this.setSidebarHeight())
-        .on('todo:toggle', (e, count) => this.updateTodoCount(count));
-      this.renderState();
-      this.setSidebarHeight();
-    }
-
-    handleClickEvent(e) {
-      if (this.isExpanded && (!this.isPinned || window.innerWidth < sidebarBreakpoint)) {
-        const $target = $(e.target);
-        const targetIsToggle = $target.closest(sidebarToggleSelector).length > 0;
-        const targetIsSidebar = $target.closest(sidebarWrapperSelector).length > 0;
-        if (!targetIsToggle && (!targetIsSidebar || $target.closest('a'))) {
-          this.toggleSidebar();
-        }
-      }
-    }
-
-    updateTodoCount(count) {
-      $('.js-todos-count').text(gl.text.addDelimiter(count));
-    }
-
-    toggleSidebar() {
-      this.isExpanded = !this.isExpanded;
-      this.renderState();
-    }
 
     setSidebarHeight() {
       const $navHeight = $('.navbar-gitlab').outerHeight() + $('.layout-nav').outerHeight();
@@ -76,34 +13,6 @@
         $('.js-right-sidebar').outerHeight('100%');
       }
     }
-
-    togglePinnedState() {
-      this.isPinned = !this.isPinned;
-      if (!this.isPinned) {
-        this.isExpanded = false;
-      }
-      Cookies.set(pinnedStateCookie, this.isPinned ? 'true' : 'false', { expires: 3650 });
-      this.renderState();
-    }
-
-    renderState() {
-      $(pageSelector)
-        .toggleClass(pinnedPageClass, this.isPinned && this.isExpanded)
-        .toggleClass(expandedPageClass, this.isExpanded);
-      $(navbarSelector)
-        .toggleClass(pinnedNavbarClass, this.isPinned && this.isExpanded)
-        .toggleClass(expandedNavbarClass, this.isExpanded);
-
-      const $pinnedToggle = $(pinnedToggleSelector);
-      const tooltipText = this.isPinned ? 'Unpin navigation' : 'Pin navigation';
-      const tooltipState = $pinnedToggle.attr('aria-describedby') && this.isExpanded ? 'show' : 'hide';
-      $pinnedToggle.attr('title', tooltipText).tooltip('fixTitle').tooltip(tooltipState);
-
-      if (this.isExpanded) {
-        const sidebarContent = $(sidebarContentSelector);
-        setTimeout(() => { sidebarContent.niceScroll().updateScrollBar(); }, 200);
-      }
-    }
   }
 
   window.gl = window.gl || {};