mancala/mobile/src/theme/ThemeManager.ts

52 lines
1.3 KiB
TypeScript

import lightTheme from "./LightTheme";
import greyTheme from "./GreyTheme";
import { Theme } from "./Theme";
import darkTheme from "./DarkTheme";
import { TinyEmitter } from "tiny-emitter";
import { storage } from "../storage";
export const themes = [lightTheme, darkTheme, greyTheme];
const THEME_ID = "theme_id";
export type ThemeManagerEvents = "themechange";
export default class ThemeManager extends TinyEmitter {
private _theme: Theme;
constructor() {
super();
this._theme = this.readFromLocalStorage() || lightTheme;
}
public get theme() {
return this._theme;
}
public set theme(value: Theme) {
this._theme = value;
this.emit("themechange", value);
this.writetToLocalStorage(value);
}
private writetToLocalStorage(value: Theme) {
storage.set(THEME_ID, value.id);
}
private readFromLocalStorage(): Theme | undefined {
const themeID = storage.getString(THEME_ID);
const theme = themes.find((eachTheme: Theme) => themeID === eachTheme.id);
return theme;
}
public get themes(): Theme[] {
return themes;
}
public on(event: ThemeManagerEvents, callback: (...value: any[]) => void): this {
return super.on(event, callback);
}
public off(event: ThemeManagerEvents, callback: (...value: any[]) => void): this {
return super.off(event, callback);
}
}