jdk-24/test/jdk/javax/swing/JComboBox/6559152/bug6559152.java

/*
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 * 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.
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 * questions.
 */

/*
 * @test
 * @key headful
 * @bug 6559152 8294067
 * @summary Checks that you can select an item in JComboBox with keyboard
 *          when it is a JTable cell editor.
 * @run main bug6559152
 */

import java.awt.Dimension;
import java.awt.Point;
import java.awt.Robot;
import java.awt.event.InputEvent;
import java.awt.event.KeyEvent;

import javax.swing.DefaultCellEditor;
import javax.swing.JComboBox;
import javax.swing.JComponent;
import javax.swing.JFrame;
import javax.swing.JTable;
import javax.swing.SwingUtilities;
import javax.swing.table.DefaultTableModel;

public class bug6559152 {
    private static JFrame frame;
    private static JComboBox cb;
    private static Robot robot;
    private static Point p = null;
    private static Dimension d;

    public static void main(String[] args) throws Exception {
        robot = new Robot();
        robot.setAutoDelay(100);
        try {
            SwingUtilities.invokeAndWait(() -> setupUI());
            blockTillDisplayed(cb);
            robot.waitForIdle();
            robot.delay(1000);
            test();
        } finally {
            if (frame != null) {
                SwingUtilities.invokeAndWait(() -> frame.dispose());
            }
        }
    }

    static void blockTillDisplayed(JComponent comp) throws Exception {
        while (p == null) {
            try {
                SwingUtilities.invokeAndWait(() -> {
                    p = comp.getLocationOnScreen();
                    d = comp.getSize();
                });
            } catch (IllegalStateException e) {
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ie) {
                }
            }
        }
    }

    private static void setupUI() {
        frame = new JFrame();
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        DefaultTableModel model = new DefaultTableModel(1, 1);
        JTable table = new JTable(model);

        cb = new JComboBox(new String[]{"one", "two", "three"});
        cb.setEditable(true);
        table.getColumnModel().getColumn(0).setCellEditor(new DefaultCellEditor(cb));
        frame.add(cb);

        frame.pack();
        frame.setLocationRelativeTo(null);
        frame.setVisible(true);
    }

    private static void test() throws Exception {
        robot.mouseMove(p.x + d.width / 2, p.y + d.height / 2);
        robot.waitForIdle();
        robot.mousePress(InputEvent.BUTTON1_DOWN_MASK);
        robot.mouseRelease(InputEvent.BUTTON1_DOWN_MASK);
        robot.waitForIdle();
        testImpl();
        checkResult();
    }

    private static void testImpl() throws Exception {
        robot.keyPress(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_DOWN);
        robot.waitForIdle();
        robot.keyPress(KeyEvent.VK_DOWN);
        robot.keyRelease(KeyEvent.VK_DOWN);
        robot.waitForIdle();
        robot.keyPress(KeyEvent.VK_ENTER);
        robot.keyRelease(KeyEvent.VK_ENTER);
        robot.waitForIdle();
    }

    private static void checkResult() {
        if (cb.getSelectedItem().equals("two")) {
            System.out.println("Test passed");
        } else {
            System.out.println("Test failed");
            throw new RuntimeException("Cannot select an item " +
                    "from popup with the ENTER key.");
        }
    }
}