129 lines
3.2 KiB
JavaScript
129 lines
3.2 KiB
JavaScript
/*
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* This file Copyright (C) 2020 Mnemosyne LLC
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*
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* It may be used under the GNU GPL versions 2 or 3
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* or any future license endorsed by Mnemosyne LLC.
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*/
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import { debounce } from './utils.js';
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export class Prefs extends EventTarget {
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constructor() {
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super();
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this._cache = {};
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this.dispatchPrefsChange = debounce((key, old_value, value) => {
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const event = new Event('change');
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Object.assign(event, { key, old_value, value });
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this.dispatchEvent(event);
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});
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for (const [key, default_value] of Object.entries(Prefs._Defaults)) {
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// populate the cache...
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this._set(key, Prefs._getCookie(key, default_value));
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// add property getter/setters...
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Object.defineProperty(this, key.replaceAll('-', '_'), {
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get: () => this._get(key),
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set: (value) => {
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this._set(key, value);
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},
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});
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}
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Object.seal(this);
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}
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entries() {
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return Object.entries(this._cache);
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}
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keys() {
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return Object.keys(this._cache);
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}
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_get(key) {
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const { _cache } = this;
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if (!Object.prototype.hasOwnProperty.call(_cache, key)) {
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throw new Error(key);
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}
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return _cache[key];
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}
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_set(key, value) {
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const { _cache } = this;
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const old_value = _cache[key];
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if (old_value !== value) {
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_cache[key] = value;
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Prefs._setCookie(key, value);
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this.dispatchPrefsChange(key, old_value, value);
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}
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}
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static _setCookie(key, value) {
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const date = new Date();
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date.setFullYear(date.getFullYear() + 1);
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document.cookie = `${key}=${value}; SameSite=Strict; expires=${date.toGMTString()}; path=/`;
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}
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static _getCookie(key, fallback) {
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const value = Prefs._readCookie(key);
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if (value === null) {
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return fallback;
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}
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if (value === 'true') {
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return true;
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}
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if (value === 'false') {
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return false;
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}
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if (value.match(/^\d+$/)) {
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return Number.parseInt(value, 10);
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}
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return value;
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}
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static _readCookie(key) {
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const value = `; ${document.cookie}`;
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const parts = value.split(`; ${key}=`);
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return parts.length === 2 ? parts.pop().split(';').shift() : null;
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}
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}
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Prefs.AltSpeedEnabled = 'alt-speed-enabled';
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Prefs.DisplayCompact = 'compact';
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Prefs.DisplayFull = 'full';
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Prefs.DisplayMode = 'display-mode';
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Prefs.FilterActive = 'active';
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Prefs.FilterAll = 'all';
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Prefs.FilterDownloading = 'downloading';
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Prefs.FilterFinished = 'finished';
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Prefs.FilterMode = 'filter-mode';
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Prefs.FilterPaused = 'paused';
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Prefs.FilterSeeding = 'seeding';
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Prefs.NotificationsEnabled = 'notifications-enabled';
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Prefs.RefreshRate = 'refresh-rate-sec';
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Prefs.SortAscending = 'ascending';
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Prefs.SortByActivity = 'activity';
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Prefs.SortByAge = 'age';
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Prefs.SortByName = 'name';
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Prefs.SortByProgress = 'progress';
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Prefs.SortByQueue = 'queue';
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Prefs.SortByRatio = 'ratio';
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Prefs.SortBySize = 'size';
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Prefs.SortByState = 'state';
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Prefs.SortDescending = 'descending';
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Prefs.SortDirection = 'sort-direction';
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Prefs.SortMode = 'sort-mode';
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Prefs._Defaults = {
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[Prefs.AltSpeedEnabled]: false,
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[Prefs.DisplayMode]: Prefs.DisplayFull,
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[Prefs.FilterMode]: Prefs.FilterAll,
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[Prefs.NotificationsEnabled]: false,
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[Prefs.RefreshRate]: 5,
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[Prefs.SortDirection]: Prefs.SortAscending,
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[Prefs.SortMode]: Prefs.SortByName,
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};
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