| /* |
| * Copyright 2011 Google Inc. |
| * |
| * 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. |
| */ |
| |
| package com.google.gwt.storage.client; |
| |
| /** |
| * Implementation of Storage with non-native events. |
| * |
| * <p> |
| * Implementation of StorageEvents is incomplete for many browsers. This class |
| * amends the properties consistently with W3C's StorageEvent. |
| * </p> |
| */ |
| class StorageImplNonNativeEvents extends StorageImpl { |
| private static native StorageEvent createStorageEvent( |
| String key, String oldValue, String newValue, String storage) /*-{ |
| return { |
| key: key, |
| oldValue: oldValue, |
| newValue: newValue, |
| storage: storage, |
| storageArea: $wnd[storage], |
| url: $wnd.location.href |
| }; |
| }-*/; |
| |
| private static void fireStorageEvent( |
| String key, String oldValue, String newValue, String storage) { |
| if (hasStorageEventHandlers()) { |
| StorageEvent se = createStorageEvent(key, oldValue, newValue, storage); |
| handleStorageEvent(se); |
| } |
| } |
| |
| @Override |
| public void clear(String storage) { |
| super.clear(storage); |
| fireStorageEvent(null, null, null, storage); |
| } |
| |
| @Override |
| public void removeItem(String storage, String key) { |
| String oldValue = getItem(storage, key); |
| super.removeItem(storage, key); |
| fireStorageEvent(key, oldValue, null, storage); |
| } |
| |
| @Override |
| public void setItem(String storage, String key, String data) { |
| String oldValue = getItem(storage, key); |
| super.setItem(storage, key, data); |
| fireStorageEvent(key, oldValue, data, storage); |
| } |
| |
| @Override |
| protected void addStorageEventHandler0() { |
| // no-op |
| } |
| |
| @Override |
| protected void removeStorageEventHandler0() { |
| // no-op |
| } |
| } |