mirror of
https://github.com/angular/angular
synced 2026-05-24 09:28:37 +00:00
2a1ff17b42
This commit runs tslint --fix with the angular/angular tslint configuration on the files inside the devtools codebase. Notably, the file-header rule in `tslint.json` was missing a default attribute. This commit adds that default attribute and sets it to the license header that is present in all files in this repo. After running tslint --fix with this default added, this commit added the license header to all files in the devtools directory. Note for the reviewer: the automatically added license headers were added as comments with the "/*!" prefix. Since we want these comments removed in builds, and the rest of the codebase uses "/**", a simple find and replace was performed on the devtools directory to change these prefixes to "/**".
43 lines
1.3 KiB
TypeScript
43 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright Google LLC All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {Injectable, Renderer2, RendererFactory2} from '@angular/core';
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import {ReplaySubject, Subject} from 'rxjs';
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export type Theme = 'dark-theme'|'light-theme';
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@Injectable({
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providedIn: 'root',
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})
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export class ThemeService {
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private renderer: Renderer2;
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currentTheme: Subject<Theme> = new ReplaySubject();
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constructor(private _rendererFactory: RendererFactory2) {
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this.renderer = this._rendererFactory.createRenderer(null, null);
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this.toggleDarkMode(this._prefersDarkMode);
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}
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toggleDarkMode(isDark: boolean): void {
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const removeClass = isDark ? 'light-theme' : 'dark-theme';
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const addClass = !isDark ? 'light-theme' : 'dark-theme';
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this.renderer.removeClass(document.body, removeClass);
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this.renderer.addClass(document.body, addClass);
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this.currentTheme.next(addClass);
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}
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initializeThemeWatcher(): void {
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window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', (e) => {
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this.toggleDarkMode(this._prefersDarkMode);
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});
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}
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private get _prefersDarkMode(): boolean {
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return window.matchMedia && window.matchMedia('(prefers-color-scheme: dark)').matches;
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}
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}
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