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/*
* Copyright (C) 2021 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/>.
*/
class SearchPersistentStateController extends EventDispatcher {
constructor() {
super();
this._mode = null;
}
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(mode, false);
}
_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});
}
}
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