139 lines
4.1 KiB
Java
139 lines
4.1 KiB
Java
/*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership.
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* The ASF licenses this file to You under the Apache License, Version 2.0
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* (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/**
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* @author Michael Danilov
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* @version $Revision$
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*/
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package java.awt.event;
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import java.awt.AWTEvent;
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import java.awt.ActiveEvent;
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import org.apache.harmony.awt.internal.nls.Messages;
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/**
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* This class is not supported in Android 1.0. It is merely provided to maintain
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* interface compatibility with desktop Java implementations.
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*
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* @since Android 1.0
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*/
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public class InvocationEvent extends AWTEvent implements ActiveEvent {
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private static final long serialVersionUID = 436056344909459450L;
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public static final int INVOCATION_FIRST = 1200;
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public static final int INVOCATION_DEFAULT = 1200;
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public static final int INVOCATION_LAST = 1200;
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protected Runnable runnable;
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protected Object notifier;
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protected boolean catchExceptions;
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private long when;
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private Throwable throwable;
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public InvocationEvent(Object source, Runnable runnable) {
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this(source, runnable, null, false);
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}
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public InvocationEvent(Object source, Runnable runnable,
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Object notifier, boolean catchExceptions) {
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this(source, INVOCATION_DEFAULT, runnable, notifier, catchExceptions);
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}
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protected InvocationEvent(Object source, int id, Runnable runnable,
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Object notifier, boolean catchExceptions)
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{
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super(source, id);
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// awt.18C=Cannot invoke null runnable
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assert runnable != null : Messages.getString("awt.18C"); //$NON-NLS-1$
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if (source == null) {
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// awt.18D=Source is null
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throw new IllegalArgumentException(Messages.getString("awt.18D")); //$NON-NLS-1$
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}
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this.runnable = runnable;
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this.notifier = notifier;
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this.catchExceptions = catchExceptions;
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throwable = null;
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when = System.currentTimeMillis();
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}
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public void dispatch() {
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if (!catchExceptions) {
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runAndNotify();
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} else {
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try {
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runAndNotify();
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} catch (Throwable t) {
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throwable = t;
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}
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}
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}
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private void runAndNotify() {
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if (notifier != null) {
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synchronized(notifier) {
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try {
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runnable.run();
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} finally {
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notifier.notifyAll();
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}
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}
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} else {
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runnable.run();
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}
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}
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public Exception getException() {
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return (throwable != null && throwable instanceof Exception) ?
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(Exception)throwable : null;
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}
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public Throwable getThrowable() {
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return throwable;
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}
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public long getWhen() {
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return when;
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}
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@Override
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public String paramString() {
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/* The format is based on 1.5 release behavior
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* which can be revealed by the following code:
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*
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* InvocationEvent e = new InvocationEvent(new Component(){},
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* new Runnable() { public void run(){} });
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* System.out.println(e);
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*/
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return ((id == INVOCATION_DEFAULT ? "INVOCATION_DEFAULT" : "unknown type") + //$NON-NLS-1$ //$NON-NLS-2$
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",runnable=" + runnable + //$NON-NLS-1$
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",notifier=" + notifier + //$NON-NLS-1$
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",catchExceptions=" + catchExceptions + //$NON-NLS-1$
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",when=" + when); //$NON-NLS-1$
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}
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}
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