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Java example source code file (KeyEventForBadFocusOwnerTest.java)

This example Java source code file (KeyEventForBadFocusOwnerTest.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

actionlistener, awt, event, exception, gui, item_one_text, item_two_text, jframe, jmenu, jmenubar, jmenuitem, macos, popupmenulistener, robot, string, suntoolkit, swing, test

The KeyEventForBadFocusOwnerTest.java Java example source code

/*
 * Copyright (c) 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 4476629
  @library ../../../../javax/swing/regtesthelpers
  @build Util
  @summary KeyEvents dispatched to old focus owner that is no longer showing
  @author son@sparc.spb.su: area=awt.focus
  @run main KeyEventForBadFocusOwnerTest
*/

/**
 * KeyEventForBadFocusOwnerTest.java
 *
 * summary: KeyEvents dispatched to old focus owner that is no longer showing
 */


import java.awt.Robot;
import java.awt.Toolkit;

import java.awt.event.*;

import javax.swing.*;
import javax.swing.event.*;
import sun.awt.SunToolkit;

public class KeyEventForBadFocusOwnerTest {
    final static String ITEM_ONE_TEXT = "one";
    final static String ITEM_TWO_TEXT = "two";

    volatile static boolean itemOneSelected = false;
    volatile static boolean itemTwoSelected = false;
    volatile static boolean unexpectedItemSelected = false;

    static Robot robot;
    static SunToolkit toolkit;

    public static void main(String[] args) throws Exception {
        SwingUtilities.invokeAndWait(new Runnable() {
            public void run() {
                JFrame frame = new JFrame("TEST");
                JMenuBar mb = new JMenuBar();
                JMenu one = new JMenu(ITEM_ONE_TEXT);
                JMenu two = new JMenu(ITEM_TWO_TEXT);

                mb.add(one);
                mb.add(two);

                ActionListener al = new ActionListener() {
                    public void actionPerformed(ActionEvent ae) {
                        String itemText = ((JMenuItem)ae.getSource()).getText();
                        System.out.println("--> " + itemText);
                        unexpectedItemSelected = true;
                    }
                };
                one.setMnemonic(KeyEvent.VK_O);
                JMenuItem item = new JMenuItem("one 1");
                item.setMnemonic(KeyEvent.VK_O);
                item.addActionListener(al);
                one.add(item);
                one.add("two");
                one.add("three");

                two.setMnemonic(KeyEvent.VK_T);
                item = new JMenuItem("two 2");
                item.setMnemonic(KeyEvent.VK_T);
                item.addActionListener(al);
                two.add(item);
                two.add("three");
                two.add("four");

                PopupMenuListener popupMenuListener = new PopupMenuListener() {
                    public void popupMenuWillBecomeVisible(PopupMenuEvent e) {
                        System.out.print(e);
                        System.out.print(e.getSource());
                        String itemText = ((JPopupMenu)e.getSource()).getName();
                        System.out.println("Menu " + itemText + "is opened.");
                        switch(itemText) {
                            case ITEM_ONE_TEXT:
                                itemOneSelected = true;
                                break;
                            case ITEM_TWO_TEXT:
                                itemTwoSelected = true;
                                break;
                        }
                    }

                    public void popupMenuWillBecomeInvisible(PopupMenuEvent e) {}
                    public void popupMenuCanceled(PopupMenuEvent e) {}
                };
                one.getPopupMenu().setName(ITEM_ONE_TEXT);
                two.getPopupMenu().setName(ITEM_TWO_TEXT);
                one.getPopupMenu().addPopupMenuListener(popupMenuListener);
                two.getPopupMenu().addPopupMenuListener(popupMenuListener);
                frame.setJMenuBar(mb);
                frame.setSize(100,100);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.pack();
                frame.setVisible(true);
            }
        });

        toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
        toolkit.realSync();

        robot = new Robot();
        robot.setAutoDelay(100);

        Util.hitMnemonics(robot, KeyEvent.VK_O);
        Util.hitMnemonics(robot, KeyEvent.VK_T);

        toolkit.realSync();
        Thread.sleep(1000); // workaround for MacOS

        if (unexpectedItemSelected) {
            throw new Exception("Test failed. KeyEvent dispatched to old focus owner. ");
        }
        if (!itemOneSelected || !itemTwoSelected) {
            throw new Exception("Not all expected events were received");
        }
    }
}

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