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/*
* Copyright (c) 2001, 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.
*/
import java.awt.FlowLayout;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.KeyEvent;
import java.awt.event.InputEvent;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
/*
* @test
* @bug 4436376
* @key headful
* @summary Tests that ComboBox items can't be deselected with Ctrl+click
* @run main bug4436376
*/
public class bug4436376 {
static JFrame frame;
static volatile Point p;
static volatile JComboBox combo;
final static int SELECTED_INDEX = 2;
public static void main(String[] args) throws Exception {
try {
Robot robot = new Robot();
robot.setAutoDelay(250);
SwingUtilities.invokeAndWait(() -> createTestUI());
robot.waitForIdle();
SwingUtilities.invokeAndWait(() -> p = combo.getLocationOnScreen());
robot.waitForIdle();
robot.mouseMove(p.x + 10, p.y + 10);
robot.waitForIdle();
robot.keyPress(KeyEvent.VK_CONTROL);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.keyRelease(KeyEvent.VK_CONTROL);
robot.waitForIdle();
SwingUtilities.invokeAndWait(() -> {
if (combo.getSelectedIndex() != SELECTED_INDEX) {
throw new RuntimeException("Failed: selected index has been changed");
}
});
} finally {
SwingUtilities.invokeAndWait(() -> {
if (frame != null) {
frame.dispose();
}
});
}
}
public static void createTestUI() {
frame = new JFrame("bug4436376");
String[] items = new String[]{"One", "Two", "Three", "Four"};
combo = new JComboBox(items);
combo.setSelectedIndex(SELECTED_INDEX);
frame.setLayout(new FlowLayout());
frame.add(combo);
frame.setLocationRelativeTo(null);
frame.pack();
frame.setVisible(true);
}
}
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