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 26 package com.sun.java.accessibility.util; 27 28 import java.awt.*; 29 import java.util.*; 30 import javax.accessibility.*; 31 32 /** 33 * The {@code GUIInitializedListener} interface is used by the {@link EventQueueMonitor} 34 * class to notify an interested party when the GUI subsystem has been 35 * initialized. This is necessary because assistive technologies can 36 * be loaded before the GUI subsystem is initialized. As a result, 37 * assistive technologies should check the 38 * {@link EventQueueMonitor#isGUIInitialized isGUIInitialized} method 39 * of {@code EventQueueMonitor} before creating any GUI components. If the 40 * return value is true, assistive technologies can create GUI components 41 * following the same thread restrictions as any other application. If 42 * the return value is false, the assistive technology should register 43 * a {@code GUIInitializedListener} with the {@code EventQueueMonitor} to be notified 44 * when the GUI subsystem is initialized. 45 * 46 * @see EventQueueMonitor 47 * @see EventQueueMonitor#isGUIInitialized 48 * @see EventQueueMonitor#addGUIInitializedListener 49 * @see EventQueueMonitor#removeGUIInitializedListener 50 * 51 */ 52 @jdk.Exported 53 public interface GUIInitializedListener extends EventListener { 54 55 /** 56 * Invoked when the GUI subsystem is initialized and it's OK for 57 * the assisitive technology to create instances of GUI objects. 58 */ 59 public void guiInitialized(); 60 61 }