--- /dev/null 2015-03-20 22:53:48.000000000 -0500 +++ new/jdk/src/jdk.accessibility/share/classes/com/sun/java/accessibility/util/GUIInitializedMulticaster.java 2015-03-20 22:53:47.033118900 -0500 @@ -0,0 +1,80 @@ +/* + * Copyright (c) 2005, 2015, Oracle and/or its affiliates. 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. Oracle designates this + * particular file as subject to the "Classpath" exception as provided + * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + +package com.sun.java.accessibility.util; + +import java.awt.*; +import java.util.EventListener; +import javax.accessibility.*; + + +/** + * The GUIInitializedMulticaster class is used to maintain a list of + * GUIInitializedListener classes. It is intended to be used primarily + * for internal support in the EventQueueMonitor class, and is not intended + * to be used by classes outside the Java Accessibility Utility package. + * + * @see EventQueueMonitor + * @see EventQueueMonitor#addGUIInitializedListener + * @see EventQueueMonitor#removeGUIInitializedListener + * + */ +class GUIInitializedMulticaster + extends AWTEventMulticaster implements GUIInitializedListener +{ + protected GUIInitializedMulticaster(EventListener a, EventListener b) { + super(a, b); + } + + public void guiInitialized() { + ((GUIInitializedListener)a).guiInitialized(); + ((GUIInitializedListener)b).guiInitialized(); + } + + public static GUIInitializedListener add(GUIInitializedListener a, GUIInitializedListener b) { + return (GUIInitializedListener)addInternal(a, b); + } + + public static GUIInitializedListener remove(GUIInitializedListener l, GUIInitializedListener oldl) { + return (GUIInitializedListener)removeInternal(l, oldl); + } + + protected static EventListener addInternal(EventListener a, EventListener b) { + if (a == null) return b; + if (b == null) return a; + return new GUIInitializedMulticaster(a, b); + } + + protected static EventListener removeInternal(EventListener l, EventListener oldl) { + if (l == oldl || l == null) { + return null; + } else if (l instanceof GUIInitializedMulticaster) { + return ((GUIInitializedMulticaster)l).remove(oldl); + } else { + return l; // it's not here + } + } + +}