47 lines
1.3 KiB
TypeScript
47 lines
1.3 KiB
TypeScript
import { LitElement } from 'lit-element';
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import { DomTools } from './domtools.classes.domtools';
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import * as plugins from './domtools.plugins';
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export class ThemeManager {
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public domtoolsRef: DomTools;
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public goBrightBoolean = false;
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public preferredColorSchemeMediaMatch = window.matchMedia('(prefers-color-scheme: light)');
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public themeObservable = new plugins.smartrx.rxjs.ReplaySubject<boolean>(1);
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constructor(domtoolsRefArg: DomTools) {
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this.domtoolsRef = domtoolsRefArg;
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// lets care
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this.goBrightBoolean = this.preferredColorSchemeMediaMatch.matches;
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this.preferredColorSchemeMediaMatch.addEventListener('change', (eventArg) => {
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this.goBrightBoolean = eventArg.matches;
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this.updateAllConnectedElements();
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});
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this.updateAllConnectedElements();
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}
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private async updateAllConnectedElements() {
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if (document.body && document.body.style) {
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document.body.style.background = this.goBrightBoolean ? '#fff' : '#000';
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}
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this.themeObservable.next(this.goBrightBoolean);
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}
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public goBright() {
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this.goBrightBoolean = true;
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this.updateAllConnectedElements();
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}
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public goDark() {
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this.goBrightBoolean = false;
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this.updateAllConnectedElements();
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}
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public toggleDarkBright() {
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this.goBrightBoolean = !this.goBrightBoolean;
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this.updateAllConnectedElements();
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}
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}
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