qBittorrent/src/webui/www/private/scripts/preferences.js

/*
 * Bittorrent Client using Qt and libtorrent.
 * Copyright (C) 2019  Thomas Piccirello <thomas.piccirello@gmail.com>
 *
 * 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 2
 * 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, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 *
 * In addition, as a special exception, the copyright holders give permission to
 * link this program with the OpenSSL project's "OpenSSL" library (or with
 * modified versions of it that use the same license as the "OpenSSL" library),
 * and distribute the linked executables. You must obey the GNU General Public
 * License in all respects for all of the code used other than "OpenSSL".  If you
 * modify file(s), you may extend this exception to your version of the file(s),
 * but you are not obligated to do so. If you do not wish to do so, delete this
 * exception statement from your version.
 */

'use strict';

if (window.qBittorrent === undefined) {
    window.qBittorrent = {};
}

window.qBittorrent.LocalPreferences = (function() {
    const exports = function() {
        return {
            LocalPreferencesClass: LocalPreferencesClass
        };
    };

    const LocalPreferencesClass = new Class({
        get: function(key, defaultValue) {
            const value = localStorage.getItem(key);
            return ((value === null) && (defaultValue !== undefined))
                ? defaultValue
                : value;
        },

        set: function(key, value) {
            try {
                localStorage.setItem(key, value);
            }
            catch (err) {
                console.error(err);
            }
        }
    })

    return exports();
})();