| /* |
| * Copyright 2007 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.user.client; |
| |
| /** |
| * Implement this interface to receive closing events from the browser window. |
| * |
| * @see com.google.gwt.user.client.Window#addWindowCloseListener(WindowCloseListener) |
| * @deprecated use {@link Window.ClosingHandler} and |
| * {@link com.google.gwt.event.logical.shared.CloseHandler} instead |
| * |
| */ |
| @Deprecated |
| public interface WindowCloseListener extends java.util.EventListener { |
| |
| /** |
| * Fired just before the browser window closes or navigates to a different |
| * site. No user-interface may be displayed during shutdown. |
| * |
| * @return non-<code>null</code> to present a confirmation dialog that asks |
| * the user whether or not she wishes to navigate away from the page. |
| * The string returned will be displayed in the close confirmation |
| * dialog box. If multiple listeners return messages, the first will |
| * be displayed; all others will be ignored. |
| */ |
| @Deprecated |
| String onWindowClosing(); |
| |
| /** |
| * Fired after the browser window closes or navigates to a different site. |
| * This event cannot be canceled, and is used mainly to clean up application |
| * state and/or save state to the server. |
| */ |
| @Deprecated |
| void onWindowClosed(); |
| } |