jdk/src/share/classes/java/awt/event/WindowAdapter.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/awt/event/WindowAdapter.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,117 @@
+/*
+ * Copyright 1996-2006 Sun Microsystems, Inc.  All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code 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 General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+package java.awt.event;
+
+/**
+ * An abstract adapter class for receiving window events.
+ * The methods in this class are empty. This class exists as
+ * convenience for creating listener objects.
+ * <P>
+ * Extend this class to create a <code>WindowEvent</code> listener
+ * and override the methods for the events of interest. (If you implement the
+ * <code>WindowListener</code> interface, you have to define all of
+ * the methods in it. This abstract class defines null methods for them
+ * all, so you can only have to define methods for events you care about.)
+ * <P>
+ * Create a listener object using the extended class and then register it with
+ * a Window using the window's <code>addWindowListener</code>
+ * method. When the window's status changes by virtue of being opened,
+ * closed, activated or deactivated, iconified or deiconified,
+ * the relevant method in the listener
+ * object is invoked, and the <code>WindowEvent</code> is passed to it.
+ *
+ * @see WindowEvent
+ * @see WindowListener
+ * @see <a href="http://java.sun.com/docs/books/tutorial/post1.0/ui/windowlistener.html">Tutorial: Writing a Window Listener</a>
+ *
+ * @author Carl Quinn
+ * @author Amy Fowler
+ * @author David Mendenhall
+ * @since 1.1
+ */
+public abstract class WindowAdapter
+    implements WindowListener, WindowStateListener, WindowFocusListener
+{
+    /**
+     * Invoked when a window has been opened.
+     */
+    public void windowOpened(WindowEvent e) {}
+
+    /**
+     * Invoked when a window is in the process of being closed.
+     * The close operation can be overridden at this point.
+     */
+    public void windowClosing(WindowEvent e) {}
+
+    /**
+     * Invoked when a window has been closed.
+     */
+    public void windowClosed(WindowEvent e) {}
+
+    /**
+     * Invoked when a window is iconified.
+     */
+    public void windowIconified(WindowEvent e) {}
+
+    /**
+     * Invoked when a window is de-iconified.
+     */
+    public void windowDeiconified(WindowEvent e) {}
+
+    /**
+     * Invoked when a window is activated.
+     */
+    public void windowActivated(WindowEvent e) {}
+
+    /**
+     * Invoked when a window is de-activated.
+     */
+    public void windowDeactivated(WindowEvent e) {}
+
+    /**
+     * Invoked when a window state is changed.
+     * @since 1.4
+     */
+    public void windowStateChanged(WindowEvent e) {}
+
+    /**
+     * Invoked when the Window is set to be the focused Window, which means
+     * that the Window, or one of its subcomponents, will receive keyboard
+     * events.
+     *
+     * @since 1.4
+     */
+    public void windowGainedFocus(WindowEvent e) {}
+
+    /**
+     * Invoked when the Window is no longer the focused Window, which means
+     * that keyboard events will no longer be delivered to the Window or any of
+     * its subcomponents.
+     *
+     * @since 1.4
+     */
+    public void windowLostFocus(WindowEvent e) {}
+}