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*
* This code is distributed in the hope that it will be useful, but WITHOUT
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* 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).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.InputEvent;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UIManager.LookAndFeelInfo;
import javax.swing.UnsupportedLookAndFeelException;
/*
* @test
* @key headful
* @bug 8033069
* @summary Checks that JComboBox popup does not close when mouse wheel is
* rotated over combo box and over its popup. The case where popup
* has no scroll bar.
* @library ../../regtesthelpers
* @build Util
* @run main bug8033069NoScrollBar
* @author Alexey Ivanov
*/
public class bug8033069NoScrollBar implements Runnable {
private static final String[] NO_SCROLL_ITEMS = new String[] {
"A", "B", "C", "D", "E", "F"
};
private final Robot robot;
private final String[] items;
private JFrame frame;
private JComboBox cb1;
private JComboBox cb2;
public static void main(String[] args) throws Exception {
iterateLookAndFeels(new bug8033069NoScrollBar(NO_SCROLL_ITEMS));
}
protected static void iterateLookAndFeels(final bug8033069NoScrollBar test) throws Exception {
LookAndFeelInfo[] lafInfo = UIManager.getInstalledLookAndFeels();
for (LookAndFeelInfo info : lafInfo) {
try {
UIManager.setLookAndFeel(info.getClassName());
System.out.println("Look and Feel: " + info.getClassName());
test.runTest();
} catch (UnsupportedLookAndFeelException e) {
System.out.println("Skipping unsupported LaF: " + info);
}
}
}
public bug8033069NoScrollBar(String[] items) throws AWTException {
this.items = items;
robot = new Robot();
robot.setAutoDelay(200);
}
private void setupUI() {
frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cb1 = new JComboBox<>(items);
cb2 = new JComboBox<>(items);
JPanel panel = new JPanel(new GridLayout(1, 2));
panel.add(cb1);
panel.add(cb2);
frame.add(panel);
frame.pack();
frame.setVisible(true);
}
public void runTest() throws Exception {
try {
SwingUtilities.invokeAndWait(this);
robot.waitForIdle();
assertFalse("cb1 popup is visible",
Util.invokeOnEDT(cb1::isPopupVisible));
// Move mouse pointer to the center of the fist combo box
Point p = cb1.getLocationOnScreen();
Dimension d = cb1.getSize();
robot.mouseMove(p.x + d.width / 2, p.y + d.height / 2);
// Click it to open popup
robot.mousePress(InputEvent.BUTTON1_MASK);
robot.mouseRelease(InputEvent.BUTTON1_MASK);
robot.waitForIdle();
assertTrue("cb1 popup is not visible",
Util.invokeOnEDT(cb1::isPopupVisible));
robot.mouseWheel(1);
robot.waitForIdle();
assertTrue("cb1 popup is not visible after mouse wheel up on combo box",
Util.invokeOnEDT(cb1::isPopupVisible));
robot.mouseWheel(-1);
robot.waitForIdle();
assertTrue("cb1 popup is not visible after mouse wheel down on combo box",
Util.invokeOnEDT(cb1::isPopupVisible));
// Move mouse down on the popup
robot.mouseMove(p.x + d.width / 2, p.y + d.height * 3);
robot.mouseWheel(1);
robot.waitForIdle();
assertTrue("cb1 popup is not visible after mouse wheel up on popup",
Util.invokeOnEDT(cb1::isPopupVisible));
robot.mouseWheel(-1);
robot.waitForIdle();
assertTrue("cb1 popup is not visible after mouse wheel down on popup",
Util.invokeOnEDT(cb1::isPopupVisible));
// Move mouse pointer to the center of the second combo box
p = cb2.getLocationOnScreen();
d = cb2.getSize();
robot.mouseMove(p.x + d.width / 2, p.y + d.height / 2);
robot.mouseWheel(1);
robot.waitForIdle();
assertFalse("cb1 popup is visible after mouse wheel up on cb2",
Util.invokeOnEDT(cb1::isPopupVisible));
} finally {
if (frame != null) {
frame.dispose();
}
}
System.out.println("Test passed");
}
@Override
public void run() {
setupUI();
}
private static void assertTrue(String message, boolean value) {
assertEquals(message, true, value);
}
private static void assertFalse(String message, boolean value) {
assertEquals(message, false, value);
}
private static void assertEquals(String message, boolean expected, boolean actual) {
if (expected != actual) {
throw new RuntimeException(message);
}
}
}