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/*
* Copyright (c) 2002, 2022, 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.Point;
import java.awt.Robot;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;
import java.util.Arrays;
import java.util.List;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import java.util.concurrent.atomic.AtomicBoolean;
import java.util.concurrent.atomic.AtomicReference;
import java.util.stream.Collectors;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.JTextArea;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.UnsupportedLookAndFeelException;
import static javax.swing.UIManager.getInstalledLookAndFeels;
/*
* @test
* @key headful
* @bug 4514331
* @summary Check whether pressing <Tab> key always shift focus to next component,
* even though the current focus is in JTextArea and some text is already selected.
* @run main TabShiftsFocusToNextComponent
*/
public class TabShiftsFocusToNextComponent {
private static JFrame frame;
private static JTextArea textArea;
private static Robot robot;
private static CountDownLatch textAreaGainedFocusLatch;
private static CountDownLatch buttonGainedFocusLatch;
public static void main(String[] s) throws Exception {
runTest();
}
public static void runTest() throws Exception {
robot = new Robot();
robot.setAutoWaitForIdle(true);
robot.setAutoDelay(200);
List<String> lafs = Arrays.stream(getInstalledLookAndFeels())
.map(UIManager.LookAndFeelInfo::getClassName)
.collect(Collectors.toList());
for (final String laf : lafs) {
textAreaGainedFocusLatch = new CountDownLatch(1);
buttonGainedFocusLatch = new CountDownLatch(1);
try {
AtomicBoolean lafSetSuccess = new AtomicBoolean(false);
SwingUtilities.invokeAndWait(() -> {
lafSetSuccess.set(setLookAndFeel(laf));
if (lafSetSuccess.get()) {
createUI();
}
});
if (!lafSetSuccess.get()) {
continue;
}
robot.waitForIdle();
SwingUtilities.invokeAndWait(() -> textArea.requestFocusInWindow());
// Waits until the textArea gains focus.
if (!textAreaGainedFocusLatch.await(3, TimeUnit.SECONDS)) {
throw new RuntimeException("Test Failed, waited for long, " +
"but the JTextArea can't gain focus for L&F: " + laf);
}
AtomicReference<Point> textAreaLoc = new AtomicReference<Point>();
SwingUtilities.invokeAndWait(() -> {
textAreaLoc.set(textArea.getLocationOnScreen());
});
final int x = textAreaLoc.get().x;
final int y = textAreaLoc.get().y;
robot.mouseMove(x + 5, y + 5);
robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
robot.mouseMove(x + 20, y + 5);
robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
robot.keyPress(KeyEvent.VK_TAB);
robot.keyRelease(KeyEvent.VK_TAB);
// Waits until the button gains focus.
if (!buttonGainedFocusLatch.await(3, TimeUnit.SECONDS)) {
throw new RuntimeException("Test Failed, waited for long, " +
"but the Button can't gain focus when 'Tab' key pressed for L&F: " + laf);
} else {
System.out.println(" Test passed for " + laf);
}
} finally {
SwingUtilities.invokeAndWait(TabShiftsFocusToNextComponent::disposeFrame);
}
}
}
private static void createUI() {
frame = new JFrame();
JPanel panel = new JPanel();
textArea = new JTextArea("I am a JTextArea");
textArea.addFocusListener(new FocusAdapter() {
@Override
public void focusGained(FocusEvent e) {
textAreaGainedFocusLatch.countDown();
}
});
textArea.setEditable(false);
panel.add(textArea);
JButton button = new JButton("Button");
panel.add(button);
button.addFocusListener(new FocusAdapter() {
@Override
public void focusGained(FocusEvent e) {
buttonGainedFocusLatch.countDown();
}
});
frame.add(panel);
frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
frame.setUndecorated(true);
frame.pack();
frame.setAlwaysOnTop(true);
frame.setLocationRelativeTo(null);
frame.setVisible(true);
}
private static boolean setLookAndFeel(String lafName) {
try {
UIManager.setLookAndFeel(lafName);
} catch (UnsupportedLookAndFeelException ignored) {
System.out.println("Ignoring Unsupported L&F: " + lafName);
return false;
} catch (ClassNotFoundException | InstantiationException
| IllegalAccessException e) {
throw new RuntimeException(e);
}
return true;
}
private static void disposeFrame() {
if (frame != null) {
frame.dispose();
frame = null;
}
}
}
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