1 files changed, 81 insertions, 0 deletions
diff --git a/app/assets/javascripts/contextual_sidebar.js b/app/assets/javascripts/contextual_sidebar.js
new file mode 100644
index 00000000000..46b68ebe158
--- /dev/null
+++ b/app/assets/javascripts/contextual_sidebar.js
@@ -0,0 +1,81 @@
+import Cookies from 'js-cookie';
+import _ from 'underscore';
+import bp from './breakpoints';
+
+export default class ContextualSidebar {
+  constructor() {
+    this.initDomElements();
+    this.render();
+  }
+
+  initDomElements() {
+    this.$page = $('.page-with-sidebar');
+    this.$sidebar = $('.nav-sidebar');
+    this.$innerScroll = $('.nav-sidebar-inner-scroll', this.$sidebar);
+    this.$overlay = $('.mobile-overlay');
+    this.$openSidebar = $('.toggle-mobile-nav');
+    this.$closeSidebar = $('.close-nav-button');
+    this.$sidebarToggle = $('.js-toggle-sidebar');
+  }
+
+  bindEvents() {
+    document.addEventListener('click', (e) => {
+      if (!e.target.closest('.nav-sidebar') && (bp.getBreakpointSize() === 'sm' || bp.getBreakpointSize() === 'md')) {
+        this.toggleCollapsedSidebar(true);
+      }
+    });
+    this.$openSidebar.on('click', () => this.toggleSidebarNav(true));
+    this.$closeSidebar.on('click', () => this.toggleSidebarNav(false));
+    this.$overlay.on('click', () => this.toggleSidebarNav(false));
+    this.$sidebarToggle.on('click', () => {
+      const value = !this.$sidebar.hasClass('sidebar-icons-only');
+      this.toggleCollapsedSidebar(value);
+    });
+
+    $(window).on('resize', () => _.debounce(this.render(), 100));
+  }
+
+  static setCollapsedCookie(value) {
+    if (bp.getBreakpointSize() !== 'lg') {
+      return;
+    }
+    Cookies.set('sidebar_collapsed', value, { expires: 365 * 10 });
+  }
+
+  toggleSidebarNav(show) {
+    this.$sidebar.toggleClass('nav-sidebar-expanded', show);
+    this.$overlay.toggleClass('mobile-nav-open', show);
+    this.$sidebar.removeClass('sidebar-icons-only');
+  }
+
+  toggleCollapsedSidebar(collapsed) {
+    const breakpoint = bp.getBreakpointSize();
+
+    if (this.$sidebar.length) {
+      this.$sidebar.toggleClass('sidebar-icons-only', collapsed);
+      this.$page.toggleClass('page-with-icon-sidebar', breakpoint === 'sm' ? true : collapsed);
+    }
+    ContextualSidebar.setCollapsedCookie(collapsed);
+
+    this.toggleSidebarOverflow();
+  }
+
+  toggleSidebarOverflow() {
+    if (this.$innerScroll.prop('scrollHeight') > this.$innerScroll.prop('offsetHeight')) {
+      this.$innerScroll.css('overflow-y', 'scroll');
+    } else {
+      this.$innerScroll.css('overflow-y', '');
+    }
+  }
+
+  render() {
+    const breakpoint = bp.getBreakpointSize();
+
+    if (breakpoint === 'sm' || breakpoint === 'md') {
+      this.toggleCollapsedSidebar(true);
+    } else if (breakpoint === 'lg') {
+      const collapse = Cookies.get('sidebar_collapsed') === 'true';
+      this.toggleCollapsedSidebar(collapse);
+    }
+  }
+}