39 lines
1.1 KiB
TypeScript
39 lines
1.1 KiB
TypeScript
import { Observable, map } from "rxjs";
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import { ThemeType } from "../enums";
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import { GlobalStateProvider, KeyDefinition, THEMING_DISK } from "../state";
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export abstract class ThemeStateService {
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/**
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* The users selected theme.
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*/
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selectedTheme$: Observable<ThemeType>;
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/**
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* A method for updating the current users configured theme.
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* @param theme The chosen user theme.
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*/
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setSelectedTheme: (theme: ThemeType) => Promise<void>;
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}
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const THEME_SELECTION = new KeyDefinition<ThemeType>(THEMING_DISK, "selection", {
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deserializer: (s) => s,
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});
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export class DefaultThemeStateService implements ThemeStateService {
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private readonly selectedThemeState = this.globalStateProvider.get(THEME_SELECTION);
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selectedTheme$ = this.selectedThemeState.state$.pipe(map((theme) => theme ?? this.defaultTheme));
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constructor(
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private globalStateProvider: GlobalStateProvider,
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private defaultTheme: ThemeType = ThemeType.System,
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) {}
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async setSelectedTheme(theme: ThemeType): Promise<void> {
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await this.selectedThemeState.update(() => theme, {
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shouldUpdate: (currentTheme) => currentTheme !== theme,
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});
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}
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}
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