| // Copyright 2011 The Closure Library Authors. All Rights Reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS-IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| /** |
| * @fileoverview Provides data persistence using HTML5 local storage |
| * mechanism. Local storage must be available under window.localStorage, |
| * see: http://www.w3.org/TR/webstorage/#the-localstorage-attribute. |
| * |
| */ |
| |
| goog.provide('goog.storage.mechanism.HTML5LocalStorage'); |
| |
| goog.require('goog.storage.mechanism.HTML5WebStorage'); |
| |
| |
| |
| /** |
| * Provides a storage mechanism that uses HTML5 local storage. |
| * |
| * @constructor |
| * @extends {goog.storage.mechanism.HTML5WebStorage} |
| */ |
| goog.storage.mechanism.HTML5LocalStorage = function() { |
| var storage = null; |
| /** @preserveTry */ |
| try { |
| // May throw an exception in cases where the local storage object |
| // is visible but access to it is disabled. |
| storage = window.localStorage || null; |
| } catch (e) {} |
| goog.storage.mechanism.HTML5LocalStorage.base(this, 'constructor', storage); |
| }; |
| goog.inherits(goog.storage.mechanism.HTML5LocalStorage, |
| goog.storage.mechanism.HTML5WebStorage); |