1 /*
   2  * Copyright (c) 2010, 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 6495920
  28  * @summary Tests that if the JPopupMenu.setVisible method throws an exception,
  29             interaction with GNOME is not crippled
  30  * @author Sergey Malenkov
  31  * @library ../..
  32  * @modules java.desktop/sun.awt
  33  */
  34 
  35 import sun.awt.AppContext;
  36 
  37 import java.awt.Point;
  38 import java.awt.Robot;
  39 import java.awt.event.InputEvent;
  40 import java.lang.reflect.Field;
  41 import javax.swing.JFrame;
  42 import javax.swing.JMenuItem;
  43 import javax.swing.JPanel;
  44 import javax.swing.JPopupMenu;
  45 import javax.swing.SwingUtilities;
  46 import javax.swing.plaf.basic.BasicPopupMenuUI;
  47 
  48 public class bug6495920 implements Thread.UncaughtExceptionHandler {
  49 
  50     public static void main(String[] args) throws Throwable {
  51         SwingTest.start(bug6495920.class);
  52     }
  53 
  54     private static Robot robot;
  55     private final JPanel panel;
  56 
  57     public bug6495920(JFrame frame) {
  58         JPopupMenu menu = new JPopupMenu() {
  59             public void setVisible(boolean visible) {
  60                 super.setVisible(visible);
  61                 throw new AssertionError(visible ? "show popup" : "hide popup");
  62             }
  63         };
  64         for (int i = 0; i < 10; i++) {
  65             menu.add(new JMenuItem(String.valueOf(i)));
  66         }
  67         this.panel = new JPanel();
  68         this.panel.setComponentPopupMenu(menu);
  69         frame.add(this.panel);
  70     }
  71 
  72     public void firstShowPopup() throws Exception {
  73         Point point = this.panel.getLocation();
  74         SwingUtilities.convertPointToScreen(point, this.panel);
  75 
  76         robot = new Robot(); // initialize shared static field first time
  77         robot.mouseMove(point.x + 1, point.y + 1);
  78         robot.mousePress(InputEvent.BUTTON3_MASK);
  79         Thread.currentThread().setUncaughtExceptionHandler(this);
  80         robot.mouseRelease(InputEvent.BUTTON3_MASK); // causes first AssertionError on EDT
  81     }
  82 
  83     public void secondHidePopup() {
  84         Point point = this.panel.getLocation();
  85         SwingUtilities.convertPointToScreen(point, this.panel);
  86 
  87         robot.mouseMove(point.x - 1, point.y - 1);
  88         Thread.currentThread().setUncaughtExceptionHandler(this);
  89         robot.mousePress(InputEvent.BUTTON1_MASK); // causes second AssertionError on EDT
  90         robot.mouseRelease(InputEvent.BUTTON1_MASK);
  91     }
  92 
  93     public void thirdValidate() throws Exception {
  94         Field key = BasicPopupMenuUI.class.getDeclaredField("MOUSE_GRABBER_KEY");
  95         key.setAccessible(true);
  96 
  97         Object grabber = AppContext.getAppContext().get(key.get(null));
  98         if (grabber == null) {
  99             throw new Exception("cannot find a mouse grabber in app's context");
 100         }
 101 
 102         Field field = grabber.getClass().getDeclaredField("grabbedWindow");
 103         field.setAccessible(true);
 104 
 105         Object window = field.get(grabber);
 106         if (window != null) {
 107             throw new Exception("interaction with GNOME is crippled");
 108         }
 109     }
 110 
 111     public void uncaughtException(Thread thread, Throwable throwable) {
 112         System.out.println(throwable);
 113     }
 114 }