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