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