J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 1996-2003 Sun Microsystems, Inc. All Rights Reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package java.awt.event; |
| 27 | |
| 28 | import java.util.EventListener; |
| 29 | |
| 30 | /** |
| 31 | * The listener interface for receiving window events. |
| 32 | * The class that is interested in processing a window event |
| 33 | * either implements this interface (and all the methods it |
| 34 | * contains) or extends the abstract <code>WindowAdapter</code> class |
| 35 | * (overriding only the methods of interest). |
| 36 | * The listener object created from that class is then registered with a |
| 37 | * Window using the window's <code>addWindowListener</code> |
| 38 | * method. When the window's status changes by virtue of being opened, |
| 39 | * closed, activated or deactivated, iconified or deiconified, |
| 40 | * the relevant method in the listener object is invoked, and the |
| 41 | * <code>WindowEvent</code> is passed to it. |
| 42 | * |
| 43 | * @author Carl Quinn |
| 44 | * |
| 45 | * @see WindowAdapter |
| 46 | * @see WindowEvent |
| 47 | * @see <a href="http://java.sun.com/docs/books/tutorial/uiswing/events/windowlistener.html">Tutorial: How to Write Window Listeners</a> |
| 48 | * |
| 49 | * @since 1.1 |
| 50 | */ |
| 51 | public interface WindowListener extends EventListener { |
| 52 | /** |
| 53 | * Invoked the first time a window is made visible. |
| 54 | */ |
| 55 | public void windowOpened(WindowEvent e); |
| 56 | |
| 57 | /** |
| 58 | * Invoked when the user attempts to close the window |
| 59 | * from the window's system menu. |
| 60 | */ |
| 61 | public void windowClosing(WindowEvent e); |
| 62 | |
| 63 | /** |
| 64 | * Invoked when a window has been closed as the result |
| 65 | * of calling dispose on the window. |
| 66 | */ |
| 67 | public void windowClosed(WindowEvent e); |
| 68 | |
| 69 | /** |
| 70 | * Invoked when a window is changed from a normal to a |
| 71 | * minimized state. For many platforms, a minimized window |
| 72 | * is displayed as the icon specified in the window's |
| 73 | * iconImage property. |
| 74 | * @see java.awt.Frame#setIconImage |
| 75 | */ |
| 76 | public void windowIconified(WindowEvent e); |
| 77 | |
| 78 | /** |
| 79 | * Invoked when a window is changed from a minimized |
| 80 | * to a normal state. |
| 81 | */ |
| 82 | public void windowDeiconified(WindowEvent e); |
| 83 | |
| 84 | /** |
| 85 | * Invoked when the Window is set to be the active Window. Only a Frame or |
| 86 | * a Dialog can be the active Window. The native windowing system may |
| 87 | * denote the active Window or its children with special decorations, such |
| 88 | * as a highlighted title bar. The active Window is always either the |
| 89 | * focused Window, or the first Frame or Dialog that is an owner of the |
| 90 | * focused Window. |
| 91 | */ |
| 92 | public void windowActivated(WindowEvent e); |
| 93 | |
| 94 | /** |
| 95 | * Invoked when a Window is no longer the active Window. Only a Frame or a |
| 96 | * Dialog can be the active Window. The native windowing system may denote |
| 97 | * the active Window or its children with special decorations, such as a |
| 98 | * highlighted title bar. The active Window is always either the focused |
| 99 | * Window, or the first Frame or Dialog that is an owner of the focused |
| 100 | * Window. |
| 101 | */ |
| 102 | public void windowDeactivated(WindowEvent e); |
| 103 | } |