File: JSpinnerButtonFocusTest.java

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/*
 * Copyright (c) 2020, 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 8223788
 * @summary JSpinner buttons in JColorChooser dialog may capture focus
 *          using TAB Key
 * @run main JSpinnerButtonFocusTest
 */

import java.awt.Robot;
import java.awt.BorderLayout;
import java.awt.ContainerOrderFocusTraversalPolicy;
import java.awt.event.FocusAdapter;
import java.awt.event.FocusEvent;
import java.awt.event.KeyEvent;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import javax.swing.JFrame;
import javax.swing.JSpinner;
import javax.swing.JSpinner.DefaultEditor;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;

public class JSpinnerButtonFocusTest {
    static JFrame frame;
    static Robot robot;
    static JSpinner spinner1, spinner2;
    static DefaultEditor editor1, editor2;
    static volatile boolean isJTextFieldFocused;
    static volatile CountDownLatch latch1;

    public static void main(String args[]) throws Exception {

        for (UIManager.LookAndFeelInfo LF :
                UIManager.getInstalledLookAndFeels()) {
            latch1 = new CountDownLatch(1);
            try {
                UIManager.setLookAndFeel(LF.getClassName());
                robot = new Robot();
                robot.setAutoDelay(50);

                SwingUtilities.invokeAndWait(() -> {
                    frame = new JFrame();
                    spinner1 = new JSpinner();
                    spinner2 = new JSpinner();

                    frame.setLayout(new BorderLayout());
                    frame.getContentPane().add(spinner1, BorderLayout.NORTH);
                    frame.getContentPane().add(spinner2, BorderLayout.SOUTH);

                    editor1 = ((DefaultEditor)spinner1.getEditor());
                    editor1.setFocusable(false);
                    spinner1.setFocusable(false);

                    editor2 = (DefaultEditor) spinner2.getEditor();
                    editor2.setFocusable(false);
                    spinner2.setFocusable(false);

                    frame.setFocusTraversalPolicy(
                            new ContainerOrderFocusTraversalPolicy());
                    frame.setFocusTraversalPolicyProvider(true);

                    frame.setAlwaysOnTop(true);
                    frame.pack();
                    frame.setVisible(true);
                });
                robot.waitForIdle();

                editor1.getTextField().addFocusListener(new FocusAdapter() {
                    @Override
                    public void focusGained(FocusEvent e) {
                        super.focusGained(e);
                        robot.keyPress(KeyEvent.VK_TAB);
                        robot.keyRelease(KeyEvent.VK_TAB);
                        latch1.countDown();
                    }
                });

                SwingUtilities.invokeAndWait(() -> {
                    editor1.getTextField().requestFocusInWindow();
                });

                if (!latch1.await(15, TimeUnit.MINUTES)) {
                    throw new RuntimeException(LF.getClassName() +
                            ": Timeout waiting for editor1 to gain focus.");
                }

                robot.waitForIdle();
                SwingUtilities.invokeAndWait(() -> {
                    isJTextFieldFocused = editor2.getTextField().isFocusOwner();
                });

                if (!isJTextFieldFocused) {
                    throw new RuntimeException(LF.getClassName() +
                            ": Spinner's Text Field doesn't have focus ");
                }
            } finally {
                if (frame != null) {
                    SwingUtilities.invokeAndWait(frame::dispose);
                }
            }
        }
    }
}