FocusCauseTest.java revision 14851:980da45565c8 
1/*
2 * Copyright (c) 2016, 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 8080395
28  @summary consider making sun.awt.CausedFocusEvent functionality public
29  @run main FocusCauseTest
30*/
31
32
33import java.awt.*;
34import java.awt.event.FocusEvent.Cause;
35import java.awt.event.FocusEvent;
36import java.awt.event.FocusListener;
37import java.io.ByteArrayInputStream;
38import java.io.IOException;
39import java.io.InputStream;
40import java.io.ObjectInputStream;
41import java.lang.IllegalArgumentException;
42import java.lang.Override;
43import java.lang.RuntimeException;
44import java.util.Arrays;
45
46public class FocusCauseTest {
47
48    private static Cause[] causes1 = {Cause.ACTIVATION,
49            Cause.UNKNOWN, Cause.UNKNOWN, Cause.TRAVERSAL_FORWARD,
50            Cause.TRAVERSAL_FORWARD, Cause.TRAVERSAL_BACKWARD,
51            Cause.TRAVERSAL_BACKWARD, Cause.TRAVERSAL_UP,
52            Cause.TRAVERSAL_DOWN, Cause.CLEAR_GLOBAL_FOCUS_OWNER};
53    private static Cause[] causes2 = new Cause[10];
54    private static int cnt;
55
56    static byte[] data =
57            {-84, -19, 0, 5, 115, 114, 0, 24, 115, 117, 110, 46, 97, 119,
58            116, 46, 67, 97, 117, 115, 101, 100, 70, 111, 99, 117, 115, 69, 118,
59            101, 110, 116, -51, 98, 39, -75, 86, 52, 107, 30, 2, 0, 1, 76, 0, 5,
60            99, 97, 117, 115, 101, 116, 0, 32, 76, 115, 117, 110, 47, 97, 119,
61            116, 47, 67, 97, 117, 115, 101, 100, 70, 111, 99, 117, 115, 69, 118,
62            101, 110, 116, 36, 67, 97, 117, 115, 101, 59, 120, 114, 0, 25, 106,
63            97, 118, 97, 46, 97, 119, 116, 46, 101, 118, 101, 110, 116, 46, 70,
64            111, 99, 117, 115, 69, 118, 101, 110, 116, 7, 68, -65, 75, 55, -113,
65            98, -52, 2, 0, 1, 90, 0, 9, 116, 101, 109, 112, 111, 114, 97, 114,
66            121, 120, 114, 0, 29, 106, 97, 118, 97, 46, 97, 119, 116, 46, 101,
67            118, 101, 110, 116, 46, 67, 111, 109, 112, 111, 110, 101, 110, 116,
68            69, 118, 101, 110, 116, 112, 109, -6, -107, 79, -87, -38, 69, 2, 0,
69            0, 120, 114, 0, 17, 106, 97, 118, 97, 46, 97, 119, 116, 46, 65, 87,
70            84, 69, 118, 101, 110, 116, -26, -85, 45, -31, 24, -33, -118, -61,
71            2, 0, 3, 90, 0, 8, 99, 111, 110, 115, 117, 109, 101, 100, 73, 0, 2,
72            105, 100, 91, 0, 5, 98, 100, 97, 116, 97, 116, 0, 2, 91, 66, 120,
73            114, 0, 21, 106, 97, 118, 97, 46, 117, 116, 105, 108, 46, 69, 118,
74            101, 110, 116, 79, 98, 106, 101, 99, 116, 76, -115, 9, 78, 24, 109,
75            125, -88, 2, 0, 0, 120, 112, 0, 0, 0, 3, -20, 112, 0, 126, 114, 0,
76            30, 115, 117, 110, 46, 97, 119, 116, 46, 67, 97, 117, 115, 101, 100,
77            70, 111, 99, 117, 115, 69, 118, 101, 110, 116, 36, 67, 97, 117, 115,
78            101, 0, 0, 0, 0, 0, 0, 0, 0, 18, 0, 0, 120, 114, 0, 14, 106, 97,
79            118, 97, 46, 108, 97, 110, 103, 46, 69, 110, 117, 109, 0, 0, 0, 0,
80            0, 0, 0, 0, 18, 0, 0, 120, 112, 116, 0};
81
82    static byte[] dataOld =
83            {-84, -19, 0, 5, 115, 114, 0, 25, 106, 97, 118, 97, 46, 97, 119,
84            116, 46, 101, 118, 101, 110, 116, 46, 70, 111, 99, 117, 115, 69,
85            118, 101, 110, 116, 7, 68, -65, 75, 55, -113, 98, -52, 2, 0, 1, 90,
86            0, 9, 116, 101, 109, 112, 111, 114, 97, 114, 121, 120, 114, 0, 29,
87            106, 97, 118, 97, 46, 97, 119, 116, 46, 101, 118, 101, 110, 116, 46,
88            67, 111, 109, 112, 111, 110, 101, 110, 116, 69, 118, 101, 110, 116,
89            112, 109, -6, -107, 79, -87, -38, 69, 2, 0, 0, 120, 114, 0, 17, 106,
90            97, 118, 97, 46, 97, 119, 116, 46, 65, 87, 84, 69, 118, 101, 110,
91            116, -26, -85, 45, -31, 24, -33, -118, -61, 2, 0, 3, 90, 0, 8, 99,
92            111, 110, 115, 117, 109, 101, 100, 73, 0, 2, 105, 100, 91, 0, 5, 98,
93            100, 97, 116, 97, 116, 0, 2, 91, 66, 120, 114, 0, 21, 106, 97, 118,
94            97, 46, 117, 116, 105, 108, 46, 69, 118, 101, 110, 116, 79, 98, 106,
95            101, 99, 116, 76, -115, 9, 78, 24, 109, 125, -88, 2, 0, 0, 120, 112,
96            0, 0, 0, 0, 100, 112, 0};
97
98    static String[] causesIn = {"UNKNOWN", "MOUSE_EVENT", "TRAVERSAL",
99            "TRAVERSAL_UP", "TRAVERSAL_DOWN", "TRAVERSAL_FORWARD",
100            "TRAVERSAL_BACKWARD", "MANUAL_REQUEST", "AUTOMATIC_TRAVERSE"
101            ,"ROLLBACK", "NATIVE_SYSTEM", "ACTIVATION",
102            "CLEAR_GLOBAL_FOCUS_OWNER", "RETARGETED"};
103
104    static FocusEvent.Cause[] causesOut = {FocusEvent.Cause.UNKNOWN,
105            FocusEvent.Cause.MOUSE_EVENT,
106            FocusEvent.Cause.TRAVERSAL, FocusEvent.Cause.TRAVERSAL_UP,
107            FocusEvent.Cause.TRAVERSAL_DOWN, FocusEvent.Cause.TRAVERSAL_FORWARD,
108            FocusEvent.Cause.TRAVERSAL_BACKWARD, FocusEvent.Cause.UNKNOWN,
109            FocusEvent.Cause.UNKNOWN, FocusEvent.Cause.ROLLBACK,
110            FocusEvent.Cause.UNEXPECTED, FocusEvent.Cause.ACTIVATION,
111            FocusEvent.Cause.CLEAR_GLOBAL_FOCUS_OWNER, FocusEvent.Cause.UNKNOWN
112    };
113
114    public static void main(String[] args) throws Exception {
115        testCauses();
116        testNullCause();
117        testCausedFocusEventDeserialization();
118        testFocusEventDeserialization();
119        System.out.println("ok");
120    }
121
122    private static void testNullCause() {
123        try {
124            new FocusEvent(new Frame(), FocusEvent.FOCUS_GAINED, true,
125                    null, null);
126            throw new RuntimeException("Exception is not thrown when the " +
127                    "cause is null");
128        } catch (IllegalArgumentException e) {
129        }
130    }
131
132    private static void testCauses() throws Exception {
133        cnt = 0;
134        Frame frame = new Frame();
135        TextField comp1 = new TextField();
136        comp1.addFocusListener(new FocusListener() {
137            @Override
138            public void focusGained(FocusEvent e) {
139                System.out.println(e.getCause());
140                causes2[cnt++] = e.getCause();
141            }
142
143            @Override
144            public void focusLost(FocusEvent e) {
145                System.out.println(e.getCause());
146                causes2[cnt++] = e.getCause();
147            }
148        });
149        TextField comp2 = new TextField();
150        comp2.addFocusListener(new FocusListener() {
151            @Override
152            public void focusGained(FocusEvent e) {
153                System.out.println(e.getCause());
154                causes2[cnt++] = e.getCause();
155            }
156
157            @Override
158            public void focusLost(FocusEvent e) {
159                System.out.println(e.getCause());
160                causes2[cnt++] = e.getCause();
161            }
162        });
163        frame.add(comp1, BorderLayout.NORTH);
164        frame.add(comp2, BorderLayout.SOUTH);
165        frame.setVisible(true);
166
167        Robot robot = new Robot();
168        robot.delay(200);
169        robot.waitForIdle();
170        comp2.requestFocus();
171        robot.waitForIdle();
172        comp2.transferFocus();
173        robot.waitForIdle();
174        comp1.transferFocusBackward();
175        robot.waitForIdle();
176        comp2.transferFocusUpCycle();
177        robot.waitForIdle();
178        frame.transferFocusDownCycle();
179        robot.waitForIdle();
180        frame.dispose();
181        robot.waitForIdle();
182        if (!Arrays.equals(causes1, causes2)) {
183            throw new RuntimeException("wrong cause " + causes2);
184        }
185    }
186
187    private static void  testCausedFocusEventDeserialization() throws
188            Exception {
189        for (int i = 0; i < causesIn.length; i++) {
190            final String causeIn = causesIn[i];
191            ObjectInputStream oi = new ObjectInputStream(new InputStream() {
192                int cnt = 0;
193                @Override
194                public int read() throws IOException {
195                    if(cnt < data.length) {
196                        return data[cnt++];
197                    } else if(cnt == data.length){
198                        cnt++;
199                        return causeIn.length();
200                    } else if(cnt - data.length - 1 < causeIn.length()) {
201                        return causeIn.getBytes()[cnt++ - data.length - 1];
202                    }
203                    return -1;
204                }
205            });
206            FocusEvent ev = (FocusEvent) oi.readObject();
207            System.out.println(ev);
208            if(ev.getCause() != causesOut[i]) {
209                throw new RuntimeException("Wrong cause read :" +ev.getCause());
210            }
211        }
212    }
213
214    private static void testFocusEventDeserialization() throws
215            Exception {
216        ObjectInputStream oi = new ObjectInputStream(
217                new ByteArrayInputStream(dataOld));
218        FocusEvent ev = (FocusEvent)oi.readObject();
219        if(ev.getCause() != FocusEvent.Cause.UNKNOWN) {
220            throw new RuntimeException("Wrong cause in deserialized FocusEvent "
221                    + ev.getCause());
222        }
223    }
224
225}
226