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/*
* Copyright (c) 2000, 2025, 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.
*
* 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.
*/
/*
@test
@bug 4087762
@summary Sometimes click events are missing when you click the color components alternately.
@key headful
@library /test/jdk/java/awt/regtesthelpers
@build Util
@run main ClickEventsTest
*/
import java.awt.Color;
import java.awt.Component;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Robot;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.TimeoutException;
import test.java.awt.regtesthelpers.Util;
public class ClickEventsTest {
static Frame frame;
static ColorComponent redComponent;
static ColorComponent blueComponent;
static Robot robot;
public static void main(String[] args) throws Exception {
try {
EventQueue.invokeAndWait(ClickEventsTest::createAndShowGUI);
test();
} finally {
EventQueue.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
private static void test() throws Exception {
robot = new Robot();
robot.waitForIdle();
robot.delay(500);
for (int i = 0; i < 10; i++) {
redComponent.clickAndCheck();
blueComponent.clickAndCheck();
}
}
private static void createAndShowGUI() {
frame = new Frame("ClickEventsTest");
redComponent = new ColorComponent(Color.RED);
blueComponent = new ColorComponent(Color.BLUE);
frame.add("North", redComponent);
frame.add("South", blueComponent);
frame.pack();
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
static class ColorComponent extends Component {
public Color myColor;
private final CyclicBarrier barrier = new CyclicBarrier(2);
private final MouseAdapter mouseAdapter = new MouseAdapter() {
public void mouseClicked(MouseEvent event) {
System.out.println(myColor + " area clicked");
try {
barrier.await(1, TimeUnit.SECONDS);
} catch (InterruptedException | BrokenBarrierException | TimeoutException e) {
throw new RuntimeException(e);
}
}
};
public ColorComponent(Color c) {
myColor = c;
addMouseListener(mouseAdapter);
}
public Dimension getPreferredSize() {
return new Dimension(200, 100);
}
public void paint(Graphics g) {
g.setColor(myColor);
g.fillRect(0, 0, 200, 100);
}
public void clickAndCheck() throws InterruptedException, BrokenBarrierException {
barrier.reset();
Util.clickOnComp(this, robot);
try {
barrier.await(1, TimeUnit.SECONDS);
} catch (TimeoutException e) {
throw new RuntimeException(myColor + " was not clicked");
}
}
}
}
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