1/*
2 * Copyright (c) 2002, 2015, Oracle and/or its affiliates. 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.  Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26package com.sun.java.accessibility.util;
27
28import java.awt.*;
29import java.util.*;
30import javax.accessibility.*;
31
32/**
33 * The {@code TopLevelWindowListener} interface is used by the {@link EventQueueMonitor}
34 * class to notify an interested party when a top level window is created
35 * or destroyed in the Java Virtual Machine.  Classes wishing to express
36 * an interest in top level window events should implement this interface
37 * and register themselves with the {@code EventQueueMonitor} by calling the
38 * {@link EventQueueMonitor#addTopLevelWindowListener EventQueueMonitor.addTopLevelWindowListener}
39 * class method.
40 *
41 * @see EventQueueMonitor
42 * @see EventQueueMonitor#addTopLevelWindowListener
43 * @see EventQueueMonitor#removeTopLevelWindowListener
44 *
45 */
46public interface TopLevelWindowListener extends EventListener {
47
48    /**
49     * Invoked when a new top level window has been created.
50     *
51     * @param w the Window that was created
52     */
53    public void topLevelWindowCreated(Window w);
54
55    /**
56     * Invoked when a top level window has been destroyed.
57     *
58     * @param w the Window that was destroyed
59     */
60    public void topLevelWindowDestroyed(Window w);
61}
62