jdk/test/javax/swing/JMenuItem/ActionListenerCalledTwice/ActionListenerCalledTwiceTest.java
author leonidr
Mon, 22 Apr 2013 19:24:41 +0400
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8008366: [macosx] ActionListener called twice for JMenuItem using ScreenMenuBar Reviewed-by: anthony, serb
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/*
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 * Copyright (c) 2012, 2013, Oracle and/or its affiliates. All rights reserved.
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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 *
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 * This code is free software; you can redistribute it and/or modify it
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 * under the terms of the GNU General Public License version 2 only, as
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 * published by the Free Software Foundation.
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 *
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 * This code is distributed in the hope that it will be useful, but WITHOUT
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 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
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 * version 2 for more details (a copy is included in the LICENSE file that
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 * accompanied this code).
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 *
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 * You should have received a copy of the GNU General Public License version
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 * 2 along with this work; if not, write to the Free Software Foundation,
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 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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 *
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 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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 * or visit www.oracle.com if you need additional information or have any
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 * questions.
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 */
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/*
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 * @test
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 * @bug 7160951
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 * @summary [macosx] ActionListener called twice for JMenuItem using ScreenMenuBar
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 * @author vera.akulova@oracle.com
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 * @run main ActionListenerCalledTwiceTest
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 */
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import sun.awt.*;
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import java.awt.*;
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import java.awt.event.*;
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import javax.swing.*;
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public class ActionListenerCalledTwiceTest {
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    static String menuItems[] = { "Item1", "Item2" };
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    static KeyStroke keyStrokes[] = {
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        KeyStroke.getKeyStroke(KeyEvent.VK_E, InputEvent.META_MASK),
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        KeyStroke.getKeyStroke(KeyEvent.VK_DELETE, 0)
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    };
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    static volatile int listenerCallCounter = 0;
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    public static void main(String[] args) throws Exception {
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        if (sun.awt.OSInfo.getOSType() != sun.awt.OSInfo.OSType.MACOSX) {
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            System.out.println("This test is for MacOS only. Automatically passed on other platforms.");
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            return;
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        }
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        System.setProperty("apple.laf.useScreenMenuBar", "true");
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        SwingUtilities.invokeAndWait(new Runnable() {
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            public void run() {
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                createAndShowGUI();
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            }
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        });
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        SunToolkit toolkit = (SunToolkit) Toolkit.getDefaultToolkit();
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        Robot robot = new Robot();
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        robot.setAutoDelay(100);
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        for (int i = 0; i < menuItems.length; ++i) {
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            KeyStroke ks = keyStrokes[i];
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            int modKeyCode = getModKeyCode(ks.getModifiers());
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            if (modKeyCode != 0) {
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                robot.keyPress(modKeyCode);
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            }
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            robot.keyPress(ks.getKeyCode());
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            robot.keyRelease(ks.getKeyCode());
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            if (modKeyCode != 0) {
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                robot.keyRelease(modKeyCode);
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            }
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            toolkit.realSync();
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            if (listenerCallCounter != 1) {
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                throw new Exception("Test failed: ActionListener for " + menuItems[i] +
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                    " called " + listenerCallCounter + " times instead of 1!");
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            }
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            listenerCallCounter = 0;
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        }
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    }
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    private static void createAndShowGUI() {
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        JMenu menu = new JMenu("Menu");
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        for (int i = 0; i < menuItems.length; ++i) {
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            JMenuItem newItem = new JMenuItem(menuItems[i]);
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            newItem.setAccelerator(keyStrokes[i]);
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            newItem.addActionListener(
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                new ActionListener(){
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                    public void actionPerformed(ActionEvent e) {
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                        listenerCallCounter++;
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                    }
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                }
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            );
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            menu.add(newItem);
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        }
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        JMenuBar bar = new JMenuBar();
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        bar.add(menu);
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        JFrame frame = new JFrame("Test");
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        frame.setJMenuBar(bar);
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        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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        frame.pack();
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        frame.setVisible(true);
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    }
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    private static int getModKeyCode(int mod) {
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        if ((mod & (InputEvent.SHIFT_DOWN_MASK | InputEvent.SHIFT_MASK)) != 0) {
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            return KeyEvent.VK_SHIFT;
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        }
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        if ((mod & (InputEvent.CTRL_DOWN_MASK | InputEvent.CTRL_MASK)) != 0) {
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            return KeyEvent.VK_CONTROL;
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        }
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        if ((mod & (InputEvent.ALT_DOWN_MASK | InputEvent.ALT_MASK)) != 0) {
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            return KeyEvent.VK_ALT;
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        }
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        if ((mod & (InputEvent.META_DOWN_MASK | InputEvent.META_MASK)) != 0) {
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            return KeyEvent.VK_META;
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        }
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        return 0;
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    }
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}