1 /*
   2  * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.
   8  *
   9  * This code is distributed in the hope that it will be useful, but WITHOUT
  10  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  12  * version 2 for more details (a copy is included in the LICENSE file that
  13  * accompanied this code).
  14  *
  15  * You should have received a copy of the GNU General Public License version
  16  * 2 along with this work; if not, write to the Free Software Foundation,
  17  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  18  *
  19  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  20  * or visit www.oracle.com if you need additional information or have any
  21  * questions.
  22  */
  23 
  24 /*
  25    @test
  26    @key headful
  27    @bug 8041470
  28    @summary JButtons stay pressed after they have lost focus if you use the mouse wheel
  29    @author Anton Nashatyrev
  30  */
  31 
  32 import javax.swing.*;
  33 import java.awt.*;
  34 import java.awt.event.*;
  35 import java.util.concurrent.CountDownLatch;
  36 
  37 public class WheelModifier {
  38 
  39     JFrame f;
  40     JButton fb;
  41 
  42     CountDownLatch pressSema = new CountDownLatch(1);
  43     CountDownLatch exitSema = new CountDownLatch(1);
  44     CountDownLatch releaseSema = new CountDownLatch(1);
  45     volatile CountDownLatch wheelSema;
  46 
  47     void createGui() {
  48         f = new JFrame("frame");
  49         fb = new JButton("frame_button");
  50         fb.addMouseListener(new MouseAdapter() {
  51             @Override
  52             public void mouseReleased(MouseEvent e) {
  53                 System.out.println("WheelModifier.mouseReleased: " + e);
  54                 releaseSema.countDown();
  55             }
  56 
  57             @Override
  58             public void mouseEntered(MouseEvent e) {
  59                 System.out.println("WheelModifier.mouseEntered: " + e);
  60 
  61             }
  62 
  63             @Override
  64             public void mouseExited(MouseEvent e) {
  65                 System.out.println("WheelModifier.mouseExited: " + e);
  66                 exitSema.countDown();
  67             }
  68 
  69             @Override
  70             public void mousePressed(MouseEvent e) {
  71                 System.out.println("WheelModifier.mousePressed: " + e);
  72                 pressSema.countDown();
  73             }
  74 
  75             @Override
  76             public void mouseDragged(MouseEvent e) {
  77                 System.out.println("WheelModifier.mouseDragged: " + e);
  78             }
  79         });
  80 
  81         Toolkit.getDefaultToolkit().addAWTEventListener(new AWTEventListener() {
  82             @Override
  83             public void eventDispatched(AWTEvent event) {
  84                 System.out.println("WheelModifier.mouseWheel: " + event);
  85                 wheelSema.countDown();
  86             }
  87         }, MouseEvent.MOUSE_WHEEL_EVENT_MASK);
  88 
  89         f.setLayout(new FlowLayout());
  90         f.add(fb);
  91         f.setSize(200, 200);
  92         f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  93         f.setVisible(true);
  94     }
  95 
  96     void run() throws Exception {
  97         Robot r = new Robot();
  98         r.waitForIdle();
  99         System.out.println("# Started");
 100 
 101         Point sLoc = fb.getLocationOnScreen();
 102         Dimension bSize = fb.getSize();
 103         r.mouseMove(sLoc.x + bSize.width / 2, sLoc.y + bSize.height / 2);
 104         r.mousePress(MouseEvent.BUTTON1_MASK);
 105         pressSema.await();
 106         System.out.println("# Pressed");
 107 
 108         r.mouseMove(sLoc.x + bSize.width / 2, sLoc.y + bSize.height * 2);
 109         exitSema.await();
 110         System.out.println("# Exited");
 111 
 112         wheelSema = new CountDownLatch(1);
 113         r.mouseWheel(1);
 114         wheelSema.await();
 115         System.out.println("# Wheeled 1");
 116 
 117         wheelSema = new CountDownLatch(1);
 118         r.mouseWheel(-1);
 119         wheelSema.await();
 120         System.out.println("# Wheeled 2");
 121 
 122         r.mouseRelease(MouseEvent.BUTTON1_MASK);
 123         releaseSema.await();
 124         System.out.println("# Released!");
 125     }
 126 
 127     public static void main(String[] args) throws Exception {
 128         WheelModifier test = new WheelModifier();
 129 
 130         SwingUtilities.invokeAndWait(() -> test.createGui());
 131         test.run();
 132 
 133         System.out.println("Done.");
 134     }
 135 }