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/*
* Copyright (c) 2010, 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
* @key headful
* @bug 4743225
* @summary Size of JComboBox list is wrong when list is populated via PopupMenuListener
* @author Alexander Potochkin
*/
import javax.accessibility.AccessibleContext;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.event.PopupMenuEvent;
import javax.swing.event.PopupMenuListener;
import javax.swing.plaf.basic.BasicComboPopup;
import java.awt.FlowLayout;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.InputEvent;
public class bug4743225 extends JFrame {
private static JComboBox cb;
private static volatile boolean flag;
public bug4743225() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setLayout(new FlowLayout());
cb = new JComboBox(new Object[] {"one", "two", "three"});
cb.addPopupMenuListener(new PopupMenuListener() {
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
cb.addItem("Test");
}
public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {
}
public void popupMenuCanceled(PopupMenuEvent e) {
}
});
add(cb);
pack();
}
public static BasicComboPopup getPopup() {
AccessibleContext c = cb.getAccessibleContext();
for(int i = 0; i < c.getAccessibleChildrenCount(); i ++) {
if (c.getAccessibleChild(i) instanceof BasicComboPopup) {
return (BasicComboPopup) c.getAccessibleChild(i);
}
}
throw new AssertionError("No BasicComboPopup found");
}
public static void main(String... args) throws Exception {
Robot robot = new Robot();
robot.setAutoDelay(20);
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
new bug4743225().setVisible(true);
}
});
robot.waitForIdle();
// calling this method from main thread is ok
Point point = cb.getLocationOnScreen();
robot.mouseMove(point.x + 10, point.y + 10);
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
robot.waitForIdle();
SwingUtilities.invokeAndWait(new Runnable() {
public void run() {
if(getPopup().getList().getLastVisibleIndex() == 3) {
flag = true;
}
}
});
if (!flag) {
throw new RuntimeException("The ComboBox popup wasn't correctly updated");
}
}
}
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