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