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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 4504665
@summary MerlinBeta2 - vetoing a focus change causes infinite loop
@key headful
@run main RestoreFocusInfiniteLoopTest
*/
import java.awt.AWTException;
import java.awt.Button;
import java.awt.Component;
import java.awt.Dialog;
import java.awt.Dimension;
import java.awt.EventQueue;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.KeyboardFocusManager;
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.InputEvent;
import java.awt.event.KeyEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyVetoException;
import java.beans.VetoableChangeListener;
public class RestoreFocusInfiniteLoopTest {
static final int TEST_TIMEOUT = 1000;
static final int DELAY = 100;
static Button b1;
static Frame frame;
static Object b1Monitor;
static Point origin;
static Dimension dim;
static MonitoredFocusListener monitorer;
public static void main(String[] args) throws Exception {
try {
EventQueue.invokeAndWait(() -> {
b1Monitor = new Object();
frame = new Frame();
b1 = new Button("1");
Button b2 = new Button("2");
b1.setName("b1");
b2.setName("b2");
frame.setLayout(new FlowLayout());
frame.add(b1);
frame.add(b2);
frame.pack();
frame.setSize(100, 100);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
FocusVetoableChangeListener vetoer = new FocusVetoableChangeListener(b2);
KeyboardFocusManager.getCurrentKeyboardFocusManager().
addVetoableChangeListener("focusOwner", vetoer);
});
Robot robot = new Robot();
robot.setAutoDelay(DELAY);
robot.setAutoWaitForIdle(true);
robot.delay(1000);
EventQueue.invokeAndWait(() -> {
monitorer = new MonitoredFocusListener(b1Monitor);
b1.addFocusListener(monitorer);
origin = b1.getLocationOnScreen();
dim = b1.getSize();
});
robot.mouseMove((int)origin.getX() + (int)dim.getWidth()/2,
(int)origin.getY() + (int)dim.getHeight()/2);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
if (!b1.isFocusOwner()) {
synchronized (b1Monitor) {
b1Monitor.wait(TEST_TIMEOUT);
}
}
monitorer.resetFocusLost();
robot.keyPress(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_TAB);
if (!monitorer.isFocusLostReceived() || !b1.isFocusOwner()) {
synchronized (b1Monitor) {
b1Monitor.wait(TEST_TIMEOUT);
}
}
if (!b1.isFocusOwner()) {
throw new RuntimeException("Test is FAILED");
} else {
System.out.println("Test is PASSED");
}
} finally {
if (frame != null) {
frame.dispose();
}
}
}
}// class RestoreFocusInfiniteLoopTest
class FocusVetoableChangeListener implements VetoableChangeListener {
Component vetoedComponent;
public FocusVetoableChangeListener(Component vetoedComponent) {
this.vetoedComponent = vetoedComponent;
}
public void vetoableChange(PropertyChangeEvent evt)
throws PropertyVetoException
{
Component oldComp = (Component)evt.getOldValue();
Component newComp = (Component)evt.getNewValue();
boolean vetoFocusChange = (newComp == vetoedComponent);
process(evt.getPropertyName(), oldComp, newComp);
if (vetoFocusChange) {
throw new PropertyVetoException("message", evt);
}
}
boolean process(String propName, Component o1, Component o2) {
System.out.println(propName +
" old=" + (o1 != null ? o1.getName() : "null") +
" new=" + (o2 != null ? o2.getName() : "null"));
return true;
}
}
class MonitoredFocusListener extends FocusAdapter {
Object monitor;
boolean focuslost = false;
public void resetFocusLost() {
focuslost = false;
}
public boolean isFocusLostReceived() {
return focuslost;
}
public MonitoredFocusListener(Object monitor) {
this.monitor = monitor;
}
public void focusLost(FocusEvent fe) {
System.out.println(fe.toString());
focuslost = true;
}
public void focusGained(FocusEvent fe) {
System.out.println(fe.toString());
synchronized (monitor) {
monitor.notify();
}
}
}
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