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