1 /*
   2  * Copyright (c) 2013, 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 8027913
  27  * @library ../../regtesthelpers
  28  * @build Util
  29  * @compile MissingDragExitEventTest.java
  30  * @run main/othervm MissingDragExitEventTest
  31  * @author Sergey Bylokhov
  32  */
  33 
  34 import java.awt.Color;
  35 import java.awt.Point;
  36 import java.awt.Robot;
  37 import java.awt.Toolkit;
  38 import java.awt.dnd.DnDConstants;
  39 import java.awt.dnd.DropTarget;
  40 import java.awt.dnd.DropTargetAdapter;
  41 import java.awt.dnd.DropTargetDragEvent;
  42 import java.awt.dnd.DropTargetDropEvent;
  43 import java.awt.dnd.DropTargetEvent;
  44 import java.awt.event.InputEvent;
  45 import java.awt.event.MouseAdapter;
  46 import java.awt.event.MouseEvent;
  47 
  48 import javax.swing.JFrame;
  49 import javax.swing.JTextArea;
  50 import javax.swing.SwingUtilities;
  51 
  52 import sun.awt.SunToolkit;
  53 import test.java.awt.regtesthelpers.Util;
  54 
  55 public class MissingDragExitEventTest {
  56 
  57     private static volatile JFrame frame;
  58     private static boolean FAILED;
  59     private static boolean MOUSE_ENTERED_DT;
  60     private static boolean MOUSE_ENTERED;
  61     private static boolean MOUSE_EXIT_TD;
  62     private static boolean MOUSE_EXIT;
  63     private static int SIZE = 300;
  64 
  65     private static void initAndShowUI() {
  66         frame = new JFrame("Test frame");
  67 
  68         frame.setSize(SIZE, SIZE);
  69         frame.setLocationRelativeTo(null);
  70         final JTextArea jta = new JTextArea();
  71         jta.setBackground(Color.RED);
  72         frame.add(jta);
  73         jta.setText("1234567890");
  74         jta.setFont(jta.getFont().deriveFont(150f));
  75         jta.setDragEnabled(true);
  76         jta.selectAll();
  77         jta.setDropTarget(new DropTarget(jta, DnDConstants.ACTION_COPY,
  78                                          new TestdropTargetListener()));
  79         jta.addMouseListener(new TestMouseAdapter());
  80         frame.setVisible(true);
  81     }
  82 
  83     public static void main(final String[] args) throws Exception {
  84         try {
  85             final Robot r = new Robot();
  86             r.setAutoDelay(50);
  87             r.mouseMove(100, 100);
  88             Util.waitForIdle(r);
  89 
  90             SwingUtilities.invokeAndWait(new Runnable() {
  91                 @Override
  92                 public void run() {
  93                     initAndShowUI();
  94                 }
  95             });
  96 
  97             final Point inside = new Point(frame.getLocationOnScreen());
  98             inside.translate(20, SIZE / 2);
  99             final Point outer = new Point(inside);
 100             outer.translate(-40, 0);
 101             r.mouseMove(inside.x, inside.y);
 102             r.mousePress(InputEvent.BUTTON1_MASK);
 103             try {
 104                 for (int i = 0; i < 3; ++i) {
 105                     Util.mouseMove(r, inside, outer);
 106                     Util.mouseMove(r, outer, inside);
 107                 }
 108             } finally {
 109                 r.mouseRelease(InputEvent.BUTTON1_MASK);
 110             }
 111             sleep();
 112 
 113             if (FAILED || !MOUSE_ENTERED || !MOUSE_ENTERED_DT || !MOUSE_EXIT
 114                     || !MOUSE_EXIT_TD) {
 115                 throw new RuntimeException("Failed");
 116             }
 117         } finally {
 118             if (frame != null) {
 119                 frame.dispose();
 120             }
 121         }
 122     }
 123 
 124     private static void sleep() {
 125         try {
 126             Thread.sleep(10000);
 127         } catch (InterruptedException ignored) {
 128         }
 129         ((SunToolkit) Toolkit.getDefaultToolkit()).realSync();
 130     }
 131 
 132     static class TestdropTargetListener extends DropTargetAdapter {
 133 
 134         private volatile boolean inside;
 135 
 136         @Override
 137         public void dragEnter(final DropTargetDragEvent dtde) {
 138             if (inside) {
 139                 FAILED = true;
 140                 Thread.dumpStack();
 141             }
 142             inside = true;
 143             MOUSE_ENTERED_DT=true;
 144             try {
 145                 Thread.sleep(10000); // we should have time to leave a component
 146             } catch (InterruptedException ignored) {
 147             }
 148         }
 149 
 150         @Override
 151         public void dragOver(final DropTargetDragEvent dtde) {
 152             if (!inside) {
 153                 FAILED = true;
 154                 Thread.dumpStack();
 155             }
 156         }
 157 
 158         @Override
 159         public void dragExit(final DropTargetEvent dte) {
 160             if (!inside) {
 161                 FAILED = true;
 162                 Thread.dumpStack();
 163             }
 164             inside = false;
 165             MOUSE_EXIT_TD=true;
 166         }
 167 
 168         @Override
 169         public void drop(final DropTargetDropEvent dtde) {
 170             if (!inside) {
 171                 FAILED = true;
 172                 Thread.dumpStack();
 173             }
 174             inside = false;
 175         }
 176     }
 177 
 178     static class TestMouseAdapter extends MouseAdapter {
 179 
 180         private volatile boolean inside;
 181 
 182         @Override
 183         public void mouseEntered(final MouseEvent e) {
 184             if (inside) {
 185                 FAILED = true;
 186                 Thread.dumpStack();
 187             }
 188             inside = true;
 189             MOUSE_ENTERED=true;
 190         }
 191 
 192         @Override
 193         public void mouseExited(final MouseEvent e) {
 194             if (!inside) {
 195                 FAILED = true;
 196                 Thread.dumpStack();
 197             }
 198             inside = false;
 199             MOUSE_EXIT=true;
 200         }
 201     }
 202 }