New sidenav

src/app/pages/component-sidenav/_component-sidenav-theme.scss

@@ -1,36 +1,49 @@
 @import '../../../../node_modules/@angular/material/theming';
+@import '../../../styles/constants';
 
 @mixin component-viewer-sidenav-theme($theme) {
   $primary: map-get($theme, primary);
-  $accent: map-get($theme, accent);
-  $warn: map-get($theme, warn);
   $background: map-get($theme, background);
   $foreground: map-get($theme, foreground);
-  $sidenav: '.docs-component-viewer-sidenav';
+  $is-dark-theme: map-get($theme, is-dark);
+  $nav-background-opacity: if($is-dark-theme, 0.2, 0.03);
 
+  .docs-component-viewer-nav-content {
+    background: rgba(0, 0, 0, $nav-background-opacity);
 
-  .docs-component-viewer-sidenav {
+    &::-webkit-scrollbar-thumb {
+      background: rgba(0, 0, 0, .26);
+    }
 
-    // Section divider
-    h3 {
-      background: rgba(mat-color($foreground, secondary-text), .32);
-      color: mat-color($primary, default-contrast);
+    button {
+      color: rgba(mat-color($foreground, text), .5);
     }
 
-    // Sidenav navigation items
-    li {
-      border-color: rgba(mat-color($foreground, secondary-text), .06);
-      color: mat-color($foreground, secondary-text);
+    hr {
+      border: none;
+      border-top: solid 1px rgba(mat-color($foreground, secondary-text), .1)
+    }
 
-      > a {
+    a {
       color: mat-color($foreground, secondary-text);
 
-        &.is-selected,
-        &:hover,
-        &:focus {
-          background: mat-color($background, background);
-          color: mat-color($primary);
-        }
+      &.docs-component-viewer-sidenav-item-selected,
+      &:hover {
+        color: mat-color($primary);
+      }
+    }
+  }
+
+  @media (max-width: $small-breakpoint-width) {
+    .docs-component-viewer-sidenav {
+      .docs-component-viewer-nav-content {
+        background: none;
+      }
+    }
+
+    .mat-drawer {
+      &::-webkit-scrollbar-thumb {
+        background: rgba(0, 0, 0, .26);
       }
     }
   }

src/app/pages/component-sidenav/component-nav.html

@@ -0,0 +1,23 @@
+<div class="docs-component-viewer-nav">
+  <div class="docs-component-viewer-nav-content">
+    <nav *ngFor="let category of docItems.getCategories((params | async)?.section); let last = last;">
+      <button (click)="toggleExpand(category.id)"
+              [attr.aria-label]="category.name + ', section toggle'"
+              [attr.aria-controls]="'panel-' + category.id"
+              [attr.aria-expanded]="getExpanded(category.id)">
+        {{category.name}}
+        <mat-icon *ngIf="!getExpanded(category.id)">keyboard_arrow_down</mat-icon>
+        <mat-icon *ngIf="getExpanded(category.id)">keyboard_arrow_up</mat-icon>
+      </button>
+      <ul [@bodyExpansion]="_getExpandedState(category.id)" id="panel-{{category.id}}">
+        <li *ngFor="let component of category.items">
+          <a [routerLink]="'/' + (params | async)?.section+ '/' + component.id"
+            routerLinkActive="docs-component-viewer-sidenav-item-selected">
+            {{component.name}}
+          </a>
+        </li>
+      </ul>
+      <hr *ngIf="!last" />
+    </nav>
+  </div>
+</div>

src/app/pages/component-sidenav/component-sidenav.html

@@ -1,25 +1,25 @@
 <mat-sidenav-container class="docs-component-viewer-sidenav-container">
+  <!-- If on small screen, menu resides in drawer -->
   <mat-sidenav #sidenav class="docs-component-viewer-sidenav"
+              *ngIf="isScreenSmall()"
               [opened]="!isScreenSmall()"
               [mode]="isScreenSmall() ? 'over' : 'side'"
               [fixedInViewport]="isScreenSmall()"
               fixedTopGap="92">
-    <nav *ngFor="let category of docItems.getCategories((params | async)?.section)">
-      <h3>{{category.name}}</h3>
-      <ul>
-        <li *ngFor="let component of category.items">
-          <a [routerLink]="'/' + (params | async)?.section+ '/' + component.id"
-             routerLinkActive="docs-component-viewer-sidenav-item-selected">
-            {{component.name}}
-          </a>
-        </li>
-      </ul>
-    </nav>
+    <app-component-nav [params]="params"></app-component-nav>
   </mat-sidenav>
-
   <div class="docs-component-sidenav-content">
     <component-page-header (toggleSidenav)="sidenav.toggle()"></component-page-header>
-    <router-outlet></router-outlet>
-    <app-footer></app-footer>
+    <div class="docs-component-sidenav-inner-content">
+      <div class="docs-component-sidenav-body-content">
+        <!-- If on large screen, menu resides to left of content -->
+        <app-component-nav 
+          *ngIf="!isScreenSmall()"
+          [params]="params">
+        </app-component-nav>
+        <router-outlet></router-outlet>
+      </div>
+      <app-footer></app-footer>
+    </div>
   </div>
 </mat-sidenav-container>

src/app/pages/component-sidenav/component-sidenav.scss

@@ -1,4 +1,5 @@
-$sidenav-spacing-unit: 8px;
+@import '../../../styles/constants';
+
 $sidenav-width: 240px;
 
 app-component-sidenav {
@@ -8,77 +9,130 @@ app-component-sidenav {
 
 .docs-component-viewer-sidenav-container {
   flex: 1;
+  box-sizing: border-box;
 }
 
 .docs-component-viewer-sidenav {
-  box-shadow: 3px 0 6px rgba(0, 0, 0, .24);
-  padding-bottom: 72px;
-  width: $sidenav-width;
-  bottom: 0;
   overflow: auto;
-  height: 100%;
+}
 
-  &.mat-sidenav-opened {
-    box-shadow: 3px 0 6px rgba(0, 0, 0, .24);
-  }
+.docs-component-sidenav-inner-content {
+  display: flex;
+  flex-direction: row;
 
-  // Section divider
-  h3 {
-    border: none;
-    font-size: 10px;
-    letter-spacing: 1px;
-    line-height: $sidenav-spacing-unit * 3;
-    text-transform: uppercase;
-    font-weight: 400;
-    margin: 0;
-    padding: 0 ($sidenav-spacing-unit * 2);
+  // The rule will match the element following the router-outlet which will be the routed component.
+  router-outlet + * {
+    flex-grow: 1;
   }
+}
 
-  ul {
-    list-style-type: none;
-    margin: 0;
-    padding: 0;
+.mat-drawer {
+  &::-webkit-scrollbar {
+    height: 4px;
+    width: 4px;
   }
+}
 
-  // Sidenav navigation item
-  li {
-    border-bottom-width: 1px;
-    border-bottom-style: solid;
-    margin: 0;
-    padding: 0;
+.docs-component-viewer-nav {
+  position: sticky;
+  top: 25px;
 
+  .docs-component-viewer-nav-content {
+    margin: 25px;
+    width: $sidenav-width;
+    max-height: 75vh;
+    overflow: auto;
 
-    // Hide the border on the last item
-    &:last-child {
-      border-color: transparent;
+    &::-webkit-scrollbar {
+      height: 4px;
+      width: 4px;
     }
 
-    > a {
-      box-sizing: border-box;
-      display: block;
-      font-size: 14px;
-      font-weight: 400;
-      line-height: ($sidenav-spacing-unit * 6) - 1;
-      text-decoration: none;
-      transition: all .3s;
-      padding: 0 ($sidenav-spacing-unit * 2);
+    button {
+      padding: 10px 15px;
+      font-weight: 700;
+      line-height: 16px;
+      margin: 0;
+      font-size: 13px;
+      cursor: pointer;
       position: relative;
+      display: block;
+      width: 100%;
+      text-align: left;
+      background: none;
+      border: none;
+
+      &:focus {
+        outline: none;
+      }
 
-      &.docs-component-viewer-sidenav-item-selected {
-        font-weight: 600;
+      .mat-icon {
+        position: absolute;
+        right: 5px;
+        font-size: 18px;
       }
     }
+
+    hr {
+      padding: 0;
+      margin: 0;
+    }
+
+    ul {
+      list-style-type: none;
+      margin: -5px 0 5px 0;
+      padding: 0;
+      overflow: hidden;
+    }
+
+    li {
+      font-size: 13px;
+      line-height: 16px;
+      margin: 0;
+      padding: 5px 15px 5px 20px;
+    }
+
+    a {
+      display: block;
+      text-decoration: none;
+    }
   }
 }
 
 .docs-component-sidenav-content {
-  min-height: 100%;
   display: flex;
   flex-direction: column;
+  min-height: 100%;
+}
 
-  // The rule will match the element following the router-outlet which will be the routed component.
-  router-outlet + * {
-    flex-grow: 1;
+.docs-component-sidenav-inner-content {
+  display: flex; 
+  flex-direction: column;
+  flex: 1;
+}
+
+.docs-component-sidenav-body-content {
+  display: flex;
+  flex: 1;
+}
+
+@media (max-width: $small-breakpoint-width) {
+  // Add specific rule to prevent default rule conflict
+  .docs-component-viewer-sidenav-container .docs-component-viewer-sidenav {
+    // position right above the content
+    z-index: 4;
+  }
+
+  .docs-component-viewer-nav {
+    position: relative;
+    top: 0;
+
+    .docs-component-viewer-nav-content {
+      box-sizing: border-box;
+      margin: 0;
+      max-height: initial;
+      box-sizing: border-box;
+    }
   }
 }