1 /*
   2  * Copyright (c) 2013, 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
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   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
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  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
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  25 
  26 /**
  27  * Provides a collection of interfaces and classes that compose the Java Accessibility
  28  * Utilities.  The classes are used by Assistive Technologies, such as the screen
  29  * readers which are used by those who are blind, and help provide access to GUI
  30  * toolkits that implement the Java Accessibility API.  An overview of the important
  31  * classes follows.
  32  *
  33  * <p>The class {@code AccessibilityEventMonitor} implements a PropertyChange
  34  * listener on every UI object that implements interface {@code Accessible} in the Java
  35  * Virtual Machine.
  36  *
  37  * <p> The class {@code AWTEventMonitor} implements a suite of listeners that are
  38  * conditionally installed on every AWT component instance in the Java Virtual Machine.
  39  *
  40  * <p>The class {@code EventQueueMonitor} provides key core functionality for
  41  * Assistive Technologies (and other system-level technologies that need some of
  42  * the same things that Assistive Technology needs).
  43  *
  44  * <p>The class {@code GUIInitializedMulticaster} is used to maintain a list of
  45  * {@code GUIInitializedListener} classes which are used by the {@code EventQueueMonitor}
  46  * class to notify an interested party when the GUI subsystem has been initialized.
  47  * Note that this class is intended to be used primarily for internal support in
  48  * the {@code EventQueueMonitor} class, and is not intended to be used by classes
  49  * outside the Java Accessibility Utility package.
  50  *
  51  * <p>The class {@code SwingEventMonitor} extends {@code AWTEventMonitor} by adding
  52  * a suite of listeners conditionally installed on every Swing component instance
  53  * in the Java Virtual Machine.
  54  *
  55  * <p>The class {@code TopLevelWindowMulticaster} is used to maintain a list of
  56  * {@code TopLevelWindowListener} classes which are used by the {@code EventQueueMonitor}
  57  * class to notify an interested party when a top level window is created or destroyed
  58  * in the Java Virtual Machine  Note that this class is intended to be used primarily
  59  * for internal support in the {@code EventQueueMonitor} class, and is not intended
  60  * to be used by classes outside the Java Accessibility Utility package.
  61  *
  62  * <p>The class {@code Translator} provides a translation to interface {@code Accessible}
  63  * for objects that do not implement interface {@code Accessible}.
  64  *
  65  * @since JDK1.7
  66  */
  67 package com.sun.java.accessibility.util;