1 /*
2 * Copyright (c) 2007, 2008, 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 %W% %E%
26 @bug 6598089
27 @summary Tests restoring focus on a single disabled coponent
28 @author Anton Tarasov: area=awt-focus
29 @library ../../regtesthelpers
30 @build Util
31 @run main RestoreFocusOnDisabledComponentTest
32 */
33
34 import java.awt.*;
35 import java.awt.event.*;
36 import java.applet.Applet;
37 import test.java.awt.regtesthelpers.Util;
38
39 /*
40 * The bug is not reproducible on Windows.
41 */
42 public class RestoreFocusOnDisabledComponentTest extends Applet {
43 Frame frame = new Frame("Frame") {public String toString() {return "FRAME";}};
44 Button b0 = new Button("button0") {public String toString() {return "B-0";}};
45 Button b1 = new Button("button1") {public String toString() {return "B-1";}};
46 volatile int nFocused;
47 Robot robot;
48
49 public static void main(String[] args) {
50 RestoreFocusOnDisabledComponentTest app = new RestoreFocusOnDisabledComponentTest();
51 app.init();
52 app.start();
53 }
54
55 public void init() {
56 robot = Util.createRobot();
57 }
58
59 public void start() {
60 frame.add(b0);
61 frame.add(b1);
62 frame.setLayout(new FlowLayout());
63 frame.pack();
64
65 frame.setVisible(true);
66
67 Util.waitForIdle(robot);
68 KeyboardFocusManager.setCurrentKeyboardFocusManager(new DefaultKeyboardFocusManager() {
69 public boolean dispatchEvent(AWTEvent e) {
70 if (e.getID() == FocusEvent.FOCUS_GAINED) {
71 // Trying to emulate timings. b1 should be disabled just by the time it gets
72 // FOCUS_GAINED event. The latter is a result of disabling b0 that initiates
73 // focus auto transfer.
74 if (e.getSource() == b1) {
75 b1.setEnabled(false);
76
77 } else if (e.getSource() == b0) {
78 if (++nFocused > 10) {
79 nFocused = -1;
80 throw new TestFailedException("Focus went into busy loop!");
81 }
82 }
83 }
84 return super.dispatchEvent(e);
85 }
86 });
87 // Initiating focus auto transfer.
88 // Focus will be requested to b1. When FOCUS_GAINED is being dispatched to b1, it will
89 // be disabled. This will trigger focus restoring. Focus will be requested to b0 (the
90 // last opposite component). When FOCUS_GAINED is being dispatched to b0, it will
91 // also be disabled. However, the last opposite component (and the most recent focus owner)
92 // will still be b0. When DKFM initiates focus restoring it should detect restoring
93 // on the same component and break.
94 b0.setEnabled(false);
95
96 Util.waitForIdle(robot);
97 if (nFocused != -1) {
98 System.out.println("Test passed.");
99 }
100 }
101 }
102
103 class TestFailedException extends RuntimeException {
104 TestFailedException(String msg) {
105 super("Test failed: " + msg);
106 }
107 }