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/*
* Copyright (c) 2002, 2023, 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 4648816
@summary Sometimes focus requests on LW components are delayed
@key headful
@run main SequencedLightweightRequestsTest
*/
import java.awt.AWTException;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Point;
import java.awt.Robot;
import java.awt.TextArea;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.InputEvent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;
public class SequencedLightweightRequestsTest implements FocusListener {
final int WAIT_TIME = 5000;
JFrame testFrame;
JButton testButton1;
JButton testButton2;
JTextField testField;
public void focusGained(FocusEvent fe) {
System.err.println("FocusGained on " + fe.getComponent().getName());
}
public void focusLost(FocusEvent fe) {
System.err.println("FocusLost on " + fe.getComponent().getName());
}
public static void main(String[] args) throws Exception {
SequencedLightweightRequestsTest test =
new SequencedLightweightRequestsTest();
test.start();
}
public void start() throws Exception {
try {
SwingUtilities.invokeAndWait(() -> {
testFrame = new JFrame("See my components!");
testButton1 = new JButton("Click me!");
testButton2 = new JButton("Do I have focus?");
testField = new JTextField("Do I have focus?");
testFrame.getContentPane().setLayout(new FlowLayout());
testFrame.getContentPane().add(testButton1);
testFrame.getContentPane().add(testField);
testFrame.getContentPane().add(testButton2);
testButton1.setName("Button1");
testButton2.setName("Button2");
testField.setName("textField");
testButton1.addFocusListener(this);
testButton2.addFocusListener(this);
testField.addFocusListener(this);
testFrame.addFocusListener(this);
testFrame.setSize(300, 100);
testFrame.setLocationRelativeTo(null);
testFrame.setVisible(true);
});
Robot robot = new Robot();
robot.setAutoDelay(100);
robot.setAutoWaitForIdle(true);
// wait to give to frame time for showing
robot.delay(1000);
// make sure that first button has focus
Object monitor = new Object();
MonitoredFocusListener monitorer =
new MonitoredFocusListener(monitor);
Point origin = testButton1.getLocationOnScreen();
Dimension dim = testButton1.getSize();
robot.mouseMove((int)origin.getX() + (int)dim.getWidth()/2,
(int)origin.getY() + (int)dim.getHeight()/2);
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
if (!testButton1.isFocusOwner()) {
synchronized (monitor) {
testButton1.addFocusListener(monitorer);
monitor.wait(WAIT_TIME);
testButton1.removeFocusListener(monitorer);
}
}
// if first button still doesn't have focus, test fails
if (!testButton1.isFocusOwner()) {
throw new RuntimeException("First button doesn't receive focus");
}
// two lightweight requests
java.awt.EventQueue.invokeAndWait(new Runnable() {
public void run() {
testButton2.requestFocus();
testField.requestFocus();
}
});
// make sure third button receives focus
if (!testField.isFocusOwner()) {
synchronized (monitor) {
testField.addFocusListener(monitorer);
monitor.wait(WAIT_TIME);
testField.removeFocusListener(monitorer);
}
}
// if the text field still doesn't have focus, test fails
if (!testField.isFocusOwner()) {
throw new RuntimeException("Text field doesn't receive focus");
}
System.out.println("Test PASSED");
} finally {
SwingUtilities.invokeAndWait(() -> {
if (testFrame != null) {
testFrame.dispose();
}
});
}
}
}// class SequencedLightweightRequestsTest
class MonitoredFocusListener extends FocusAdapter {
Object monitor;
public MonitoredFocusListener(Object monitor) {
this.monitor = monitor;
}
public void focusGained(FocusEvent fe) {
synchronized (monitor) {
monitor.notify();
}
}
}
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