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Java example source code file (bug4624207.java)

This example Java source code file (bug4624207.java) is included in the alvinalexander.com "Java Source Code Warehouse" project. The intent of this project is to help you "Learn Java by Example" TM.

Learn more about this Java project at its project page.

Java - Java tags/keywords

awt, button1, button2, changelistener, event, focuslistener, gui, jbutton, jframe, jtabbedpane, jtextfield, object, robot, runnable, runtimeexception, suntoolkit, swing, tab2

The bug4624207.java Java example source code

/*
 * Copyright (c) 2011, 2013, 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
 * @bug 4624207
 * @summary JTabbedPane mnemonics don't work from outside the tabbed pane
 * @author Oleg Mokhovikov
 * @library ../../regtesthelpers
 * @build Util
 * @run main bug4624207
 */
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import java.awt.*;
import java.awt.event.FocusEvent;
import java.awt.event.FocusListener;
import java.awt.event.KeyEvent;

import sun.awt.OSInfo;
import sun.awt.SunToolkit;

public class bug4624207 implements ChangeListener, FocusListener {

    private static volatile boolean stateChanged = false;
    private static volatile boolean focusGained = false;
    private static JTextField txtField;
    private static JTabbedPane tab;
    private static Object listener;

    public void stateChanged(ChangeEvent e) {
        System.out.println("stateChanged called");
        stateChanged = true;
    }

    public void focusGained(FocusEvent e) {
        System.out.println("focusGained called");
        focusGained = true;
    }

    public void focusLost(FocusEvent e) {
        System.out.println("focusLost called");
        focusGained = false;
    }

    public static void main(String[] args) throws Exception {
        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
        Robot robot = new Robot();
        robot.setAutoDelay(50);

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {
                createAndShowGUI();
            }
        });

        toolkit.realSync();

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {
                txtField.requestFocus();
            }
        });

        toolkit.realSync();

        if (!focusGained) {
            throw new RuntimeException("Couldn't gain focus for text field");
        }

        SwingUtilities.invokeAndWait(new Runnable() {

            public void run() {
                tab.addChangeListener((ChangeListener) listener);
                txtField.removeFocusListener((FocusListener) listener);
            }
        });

        toolkit.realSync();

        if (OSInfo.getOSType() == OSInfo.OSType.MACOSX) {
            Util.hitKeys(robot, KeyEvent.VK_CONTROL, KeyEvent.VK_ALT, KeyEvent.VK_B);
        } else {
            Util.hitKeys(robot, KeyEvent.VK_ALT, KeyEvent.VK_B);
        }

        toolkit.realSync();

        if (!stateChanged || tab.getSelectedIndex() != 1) {
            throw new RuntimeException("JTabbedPane mnemonics don't work from outside the tabbed pane");
        }
    }

    private static void createAndShowGUI() {
        tab = new JTabbedPane();
        tab.add("Tab1", new JButton("Button1"));
        tab.add("Tab2", new JButton("Button2"));
        tab.setMnemonicAt(0, KeyEvent.VK_T);
        tab.setMnemonicAt(1, KeyEvent.VK_B);

        JFrame frame = new JFrame();
        frame.getContentPane().add(tab, BorderLayout.CENTER);
        txtField = new JTextField();
        frame.getContentPane().add(txtField, BorderLayout.NORTH);
        listener = new bug4624207();
        txtField.addFocusListener((FocusListener) listener);
        frame.pack();
        frame.setVisible(true);
    }
}

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