dark mode

src/app/widget-modules/components/application-frame/navigation/navigation.component.html

@@ -6,7 +6,17 @@
     <app-link *appRole="['presenter']" [icon]="faPresentation" link="/presentation" text="Präsentation"></app-link>
     <app-link [icon]="faUser" link="/user" text="Benutzer"></app-link>
   </div>
-  <div *appRole="['user', 'presenter', 'leader']" class="actions">
+  <div class="actions">
+    <button
+      mat-icon-button
+      class="theme-toggle"
+      [attr.aria-label]="themeService.isDarkMode() ? 'Lightmode aktivieren' : 'Darkmode aktivieren'"
+      [attr.title]="themeService.isDarkMode() ? 'Zum Lightmode wechseln' : 'Zum Darkmode wechseln'"
+      (click)="themeService.toggleTheme()">
+      <fa-icon [icon]="themeService.isDarkMode() ? faLightMode : faDarkMode"></fa-icon>
+    </button>
+  </div>
+  <div *appRole="['user', 'presenter', 'leader']" class="actions actions-search">
     <app-filter></app-filter>
   </div>
 </nav>

src/app/widget-modules/components/application-frame/navigation/navigation.component.less

@@ -32,9 +32,25 @@ nav {
   display: flex;
   height: 100%;
   align-items: center;
+  padding-right: 12px;
+}
+
+.actions-search {
   padding-right: 20px;
 }
 
+.theme-toggle {
+  color: var(--text-inverse);
+  transition: var(--transition-fast);
+
+  &:hover {
+    background: var(--hover-background);
+  }
+}
+
+.theme-toggle fa-icon {
+  font-size: 14px;
+}
 
 .links {
   display: flex;

src/app/widget-modules/components/application-frame/navigation/navigation.component.ts

@@ -1,5 +1,7 @@
-import {Component} from '@angular/core';
-import {faChalkboard, faMusic, faPersonBooth, faUserCog} from '@fortawesome/free-solid-svg-icons';
+import {Component, inject} from '@angular/core';
+import {MatIconButton} from '@angular/material/button';
+import {FaIconComponent} from '@fortawesome/angular-fontawesome';
+import {faChalkboard, faMoon, faMusic, faPersonBooth, faSun, faUserCog} from '@fortawesome/free-solid-svg-icons';
 import {fromEvent, Observable} from 'rxjs';
 import {distinctUntilChanged, map, shareReplay, startWith} from 'rxjs/operators';
 import {BrandComponent} from './brand/brand.component';
@@ -8,18 +10,22 @@ import {RoleDirective} from '../../../../services/user/role.directive';
 import {LinkComponent} from './link/link.component';
 import {FilterComponent} from './filter/filter.component';
 import {AsyncPipe} from '@angular/common';
+import {ThemeService} from '../../../../services/theme/theme.service';
 
 @Component({
   selector: 'app-navigation',
   templateUrl: './navigation.component.html',
   styleUrls: ['./navigation.component.less'],
-  imports: [BrandComponent, RouterLink, RoleDirective, LinkComponent, FilterComponent, AsyncPipe],
+  imports: [BrandComponent, RouterLink, RoleDirective, LinkComponent, FilterComponent, AsyncPipe, MatIconButton, FaIconComponent],
 })
 export class NavigationComponent {
+  public readonly themeService = inject(ThemeService);
   public faSongs = faMusic;
   public faShows = faPersonBooth;
   public faUser = faUserCog;
   public faPresentation = faChalkboard;
+  public faDarkMode = faMoon;
+  public faLightMode = faSun;
 
   public readonly windowScroll$: Observable<number> = fromEvent(window, 'scroll').pipe(
     map(() => window.scrollY),