Cable-Desktop/libtextsecure/storage.js

62 lines
2.1 KiB
JavaScript

/* vim: ts=4:sw=4
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
'use strict';
;(function() {
/************************************************
*** Utilities to store data in local storage ***
************************************************/
window.textsecure = window.textsecure || {};
window.textsecure.storage = window.textsecure.storage || {};
// Overrideable storage implementation
window.textsecure.storage.impl = window.textsecure.storage.impl || {
/*****************************
*** Base Storage Routines ***
*****************************/
put: function(key, value) {
if (value === undefined)
throw new Error("Tried to store undefined");
localStorage.setItem("" + key, textsecure.utils.jsonThing(value));
},
get: function(key, defaultValue) {
var value = localStorage.getItem("" + key);
if (value === null)
return defaultValue;
return JSON.parse(value);
},
remove: function(key) {
localStorage.removeItem("" + key);
},
};
window.textsecure.storage.put = function(key, value) {
return textsecure.storage.impl.put(key, value);
};
window.textsecure.storage.get = function(key, defaultValue) {
return textsecure.storage.impl.get(key, defaultValue);
};
window.textsecure.storage.remove = function(key) {
return textsecure.storage.impl.remove(key);
};
})();