1 /*
2 * Copyright (c) 2014, 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 4422345 8039083
27 @summary tests serialization of DragSourceListeners
28 @author das@sparc.spb.su area=dnd
29 @library ../../../../lib/testlibrary
30 @build jdk.testlibrary.Asserts
31 @run main/othervm DragSourceListenerSerializationTest
32 */
33
34 import java.awt.Button;
35 import java.awt.Component;
36 import java.awt.Cursor;
37 import java.awt.Point;
38 import java.awt.Toolkit;
39 import java.awt.datatransfer.StringSelection;
40 import java.awt.dnd.DnDConstants;
41 import java.awt.dnd.DragGestureEvent;
42 import java.awt.dnd.DragGestureRecognizer;
43 import java.awt.dnd.DragSource;
44 import java.awt.dnd.DragSourceAdapter;
45 import java.awt.dnd.DragSourceContext;
46 import java.awt.dnd.DragSourceListener;
47 import java.awt.dnd.DragSourceMotionListener;
48 import java.awt.event.InputEvent;
49 import java.awt.event.MouseEvent;
50 import java.io.ByteArrayInputStream;
51 import java.io.ByteArrayOutputStream;
52 import java.io.ObjectInputStream;
53 import java.io.ObjectOutputStream;
54 import java.io.Serializable;
55 import java.util.Arrays;
56 import java.util.TooManyListenersException;
57 import java.util.stream.Collectors;
58 import java.util.stream.Stream;
59
60 import static jdk.testlibrary.Asserts.assertEquals;
61
62 public class DragSourceListenerSerializationTest {
63 public static void main(String[] args) throws Exception {
64 DragSource ds = new DragSource();
65 TestDragSourceAdapter dsa1 = new TestDragSourceAdapter(1);
66 TestDragSourceAdapter dsa2 = new TestDragSourceAdapter(2);
67 Component c = new Button();
68 DragGestureRecognizer dgr = ds.createDefaultDragGestureRecognizer(c,
69 DnDConstants.ACTION_COPY,
70 e -> e.startDrag(null, null));
71 MouseEvent me = new MouseEvent(c, MouseEvent.MOUSE_PRESSED, 0,
72 InputEvent.CTRL_MASK, 100, 100, 0, false);
73 DragGestureEvent dge = new DragGestureEvent(dgr, DnDConstants.ACTION_COPY,
74 new Point(100, 100),
75 Arrays.asList(me));
76 DragSourceContext dsc = new DragSourceContext(
77 dge,
78 new Cursor(Cursor.HAND_CURSOR),
79 null, null, new StringSelection("TEXT"), null);
80
81 ds.addDragSourceListener(dsa1);
82 ds.addDragSourceListener(dsa2);
83 ds.addDragSourceListener(dsa2);
84 ds.addDragSourceMotionListener(dsa1);
85 ds.addDragSourceMotionListener(dsa1);
86 ds.addDragSourceMotionListener(dsa2);
87 dsc.addDragSourceListener(dsa2);
88
89 byte[] serialized;
90 try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
91 ObjectOutputStream oos = new ObjectOutputStream(bos)) {
92 oos.writeObject(dsc);
93 serialized = bos.toByteArray();
94 }
95
96 DragSourceContext dsc_copy;
97 try (ByteArrayInputStream bis = new ByteArrayInputStream(serialized);
98 ObjectInputStream ois = new ObjectInputStream(bis)) {
99 dsc_copy = (DragSourceContext) ois.readObject();
100 }
101
102 try {
103 dsc_copy.addDragSourceListener(dsa1);
104 throw new RuntimeException("Test failed. Listener addition succeeded");
105 } catch (TooManyListenersException ignored) {
106 }
107
108 try {
109 dsc_copy.addDragSourceListener(dsa2);
110 throw new RuntimeException("Test failed. Listener addition succeeded");
111 } catch (TooManyListenersException ignored) {
112 }
113
114 try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
115 ObjectOutputStream oos = new ObjectOutputStream(bos)) {
116 oos.writeObject(ds);
117 serialized = bos.toByteArray();
118 }
119
120 DragSource ds_copy;
121 try (ByteArrayInputStream bis = new ByteArrayInputStream(serialized);
122 ObjectInputStream ois = new ObjectInputStream(bis)) {
123 ds_copy = (DragSource) ois.readObject();
124 }
125
126 DragSourceListener[] dsls = ds_copy.getDragSourceListeners();
127 assertEquals(3, dsls.length, "DragSourceListeners number");
128 assertEquals(1, Stream.of(dsls).filter(dsa1::equals).collect(Collectors.counting()).intValue());
129 assertEquals(2, Stream.of(dsls).filter(dsa2::equals).collect(Collectors.counting()).intValue());
130
131 DragSourceMotionListener[] dsmls = ds_copy.getDragSourceMotionListeners();
132 assertEquals(3, dsmls.length, "DragSourceMotionListeners number");
133 assertEquals(2, Stream.of(dsmls).filter(dsa1::equals).collect(Collectors.counting()).intValue());
134 assertEquals(1, Stream.of(dsmls).filter(dsa2::equals).collect(Collectors.counting()).intValue());
135 }
136 }
137
138 class TestDragSourceAdapter extends DragSourceAdapter implements Serializable {
139 final int id;
140
141 TestDragSourceAdapter(int id) {
142 this.id = id;
143 }
144
145 public int getId() {
146 return id;
147 }
148
149 public boolean equals(Object obj) {
150 if (obj instanceof TestDragSourceAdapter) {
151 TestDragSourceAdapter tdsa = (TestDragSourceAdapter) obj;
152 return tdsa.getId() == getId();
153 }
154 return false;
155 }
156 }