Showing the changes to java/pkg/sun/awt/EventQueueDelegate.java (1 of 18352 files). Show all
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| 1 | +/* | |
| 2 | + * Copyright (c) 2008, 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 sun.awt; | |
| 27 | + | |
| 28 | +import java.awt.AWTEvent; | |
| 29 | +import java.awt.EventQueue; | |
| 30 | + | |
| 31 | + | |
| 32 | +public class EventQueueDelegate { | |
| 33 | + private static final Object EVENT_QUEUE_DELEGATE_KEY = | |
| 34 | + new StringBuilder("EventQueueDelegate.Delegate"); | |
| 35 | + | |
| 36 | + public static void setDelegate(Delegate delegate) { | |
| 37 | + AppContext.getAppContext().put(EVENT_QUEUE_DELEGATE_KEY, delegate); | |
| 38 | + } | |
| 39 | + public static Delegate getDelegate() { | |
| 40 | + return | |
| 41 | + (Delegate) AppContext.getAppContext().get(EVENT_QUEUE_DELEGATE_KEY); | |
| 42 | + } | |
| 43 | + public interface Delegate { | |
| 44 | + /** | |
| 45 | + * This method allows for changing {@code EventQueue} events order. | |
| 46 | + * | |
| 47 | + * @param eventQueue current {@code EventQueue} | |
| 48 | + * @return next {@code event} for the {@code EventDispatchThread} | |
| 49 | + */ | |
| 50 | + | |
| 51 | + public AWTEvent getNextEvent(EventQueue eventQueue) throws InterruptedException; | |
| 52 | + | |
| 53 | + /** | |
| 54 | + * Notifies delegate before EventQueue.dispatch method. | |
| 55 | + * | |
| 56 | + * Note: this method may mutate the event | |
| 57 | + * | |
| 58 | + * @param event to be dispatched by {@code dispatch} method | |
| 59 | + * @return handle to be passed to {@code afterDispatch} method | |
| 60 | + */ | |
| 61 | + public Object beforeDispatch(AWTEvent event) throws InterruptedException; | |
| 62 | + | |
| 63 | + /** | |
| 64 | + * Notifies delegate after EventQueue.dispatch method. | |
| 65 | + * | |
| 66 | + * @param event {@code event} dispatched by the {@code dispatch} method | |
| 67 | + * @param handle object which came from {@code beforeDispatch} method | |
| 68 | + */ | |
| 69 | + public void afterDispatch(AWTEvent event, Object handle) throws InterruptedException; | |
| 70 | + } | |
| 71 | +} | |