/* * Copyright (C) 2023-2024 Yomitan Authors * Copyright (C) 2021-2022 Yomichan Authors * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <https://www.gnu.org/licenses/>. */ import {EventDispatcher} from '../core/event-dispatcher.js'; /** * @augments EventDispatcher<import('search-persistent-state-controller').Events> */ export class SearchPersistentStateController extends EventDispatcher { constructor() { super(); /** @type {import('display').SearchMode} */ this._mode = null; } /** @type {import('display').SearchMode} */ get mode() { return this._mode; } set mode(value) { this._setMode(value, true); } /** */ prepare() { this._updateMode(); } // Private /** */ _updateMode() { let mode = null; try { mode = sessionStorage.getItem('mode'); } catch (e) { // Browsers can throw a SecurityError when cookie blocking is enabled. } this._setMode(this._normalizeMode(mode), false); } /** * @param {import('display').SearchMode} mode * @param {boolean} save */ _setMode(mode, save) { if (mode === this._mode) { return; } if (save) { try { if (mode === null) { sessionStorage.removeItem('mode'); } else { sessionStorage.setItem('mode', mode); } } catch (e) { // Browsers can throw a SecurityError when cookie blocking is enabled. } } this._mode = mode; document.documentElement.dataset.searchMode = (mode !== null ? mode : ''); this.trigger('modeChange', {mode}); } /** * @param {?string} mode * @returns {import('display').SearchMode} */ _normalizeMode(mode) { switch (mode) { case 'popup': case 'action-popup': return mode; default: return null; } } }