1 /*
2 * Copyright (c) 2014, 2016, 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 4422345 8039083
28 @summary tests serialization of DragSourceListeners
29 @author das@sparc.spb.su area=dnd
30 @library ../../../../lib/testlibrary
31 @build jdk.testlibrary.Asserts
32 @run main/othervm DragSourceListenerSerializationTest
33 */
34
35 import java.awt.Button;
36 import java.awt.Component;
37 import java.awt.Cursor;
38 import java.awt.Point;
39 import java.awt.Toolkit;
40 import java.awt.datatransfer.StringSelection;
41 import java.awt.dnd.DnDConstants;
42 import java.awt.dnd.DragGestureEvent;
43 import java.awt.dnd.DragGestureRecognizer;
44 import java.awt.dnd.DragSource;
45 import java.awt.dnd.DragSourceAdapter;
46 import java.awt.dnd.DragSourceContext;
47 import java.awt.dnd.DragSourceListener;
48 import java.awt.dnd.DragSourceMotionListener;
49 import java.awt.event.InputEvent;
50 import java.awt.event.MouseEvent;
51 import java.io.ByteArrayInputStream;
52 import java.io.ByteArrayOutputStream;
53 import java.io.ObjectInputStream;
54 import java.io.ObjectOutputStream;
55 import java.io.Serializable;
56 import java.util.Arrays;
57 import java.util.TooManyListenersException;
58 import java.util.stream.Collectors;
59 import java.util.stream.Stream;
60
61 import static jdk.testlibrary.Asserts.assertEquals;
62
63 public class DragSourceListenerSerializationTest {
64 public static void main(String[] args) throws Exception {
65 DragSource ds = new DragSource();
66 TestDragSourceAdapter dsa1 = new TestDragSourceAdapter(1);
67 TestDragSourceAdapter dsa2 = new TestDragSourceAdapter(2);
68 Component c = new Button();
69 DragGestureRecognizer dgr = ds.createDefaultDragGestureRecognizer(c,
70 DnDConstants.ACTION_COPY,
71 e -> e.startDrag(null, null));
72 MouseEvent me = new MouseEvent(c, MouseEvent.MOUSE_PRESSED, 0,
73 InputEvent.CTRL_MASK, 100, 100, 0, false);
74 DragGestureEvent dge = new DragGestureEvent(dgr, DnDConstants.ACTION_COPY,
75 new Point(100, 100),
76 Arrays.asList(me));
77 DragSourceContext dsc = new DragSourceContext(
78 Toolkit.getDefaultToolkit().createDragSourceContextPeer(dge),
79 dge,
80 new Cursor(Cursor.HAND_CURSOR),
81 null, null, new StringSelection("TEXT"), null);
82
83 ds.addDragSourceListener(dsa1);
84 ds.addDragSourceListener(dsa2);
85 ds.addDragSourceListener(dsa2);
86 ds.addDragSourceMotionListener(dsa1);
87 ds.addDragSourceMotionListener(dsa1);
88 ds.addDragSourceMotionListener(dsa2);
89 dsc.addDragSourceListener(dsa2);
90
91 byte[] serialized;
92 try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
93 ObjectOutputStream oos = new ObjectOutputStream(bos)) {
94 oos.writeObject(dsc);
95 serialized = bos.toByteArray();
96 }
97
98 DragSourceContext dsc_copy;
99 try (ByteArrayInputStream bis = new ByteArrayInputStream(serialized);
100 ObjectInputStream ois = new ObjectInputStream(bis)) {
101 dsc_copy = (DragSourceContext) ois.readObject();
102 }
103
104 try {
105 dsc_copy.addDragSourceListener(dsa1);
106 throw new RuntimeException("Test failed. Listener addition succeeded");
107 } catch (TooManyListenersException ignored) {
108 }
109
110 try {
111 dsc_copy.addDragSourceListener(dsa2);
112 throw new RuntimeException("Test failed. Listener addition succeeded");
113 } catch (TooManyListenersException ignored) {
114 }
115
116 try (ByteArrayOutputStream bos = new ByteArrayOutputStream();
117 ObjectOutputStream oos = new ObjectOutputStream(bos)) {
118 oos.writeObject(ds);
119 serialized = bos.toByteArray();
120 }
121
122 DragSource ds_copy;
123 try (ByteArrayInputStream bis = new ByteArrayInputStream(serialized);
124 ObjectInputStream ois = new ObjectInputStream(bis)) {
125 ds_copy = (DragSource) ois.readObject();
126 }
127
128 DragSourceListener[] dsls = ds_copy.getDragSourceListeners();
129 assertEquals(3, dsls.length, "DragSourceListeners number");
130 assertEquals(1, Stream.of(dsls).filter(dsa1::equals).collect(Collectors.counting()).intValue());
131 assertEquals(2, Stream.of(dsls).filter(dsa2::equals).collect(Collectors.counting()).intValue());
132
133 DragSourceMotionListener[] dsmls = ds_copy.getDragSourceMotionListeners();
134 assertEquals(3, dsmls.length, "DragSourceMotionListeners number");
135 assertEquals(2, Stream.of(dsmls).filter(dsa1::equals).collect(Collectors.counting()).intValue());
136 assertEquals(1, Stream.of(dsmls).filter(dsa2::equals).collect(Collectors.counting()).intValue());
137 }
138 }
139
140 class TestDragSourceAdapter extends DragSourceAdapter implements Serializable {
141 final int id;
142
143 TestDragSourceAdapter(int id) {
144 this.id = id;
145 }
146
147 public int getId() {
148 return id;
149 }
150
151 public boolean equals(Object obj) {
152 if (obj instanceof TestDragSourceAdapter) {
153 TestDragSourceAdapter tdsa = (TestDragSourceAdapter) obj;
154 return tdsa.getId() == getId();
155 }
156 return false;
157 }
158 }