1 /*
2 * Copyright (c) 2019, 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 8231991
28 @summary Mouse wheel change focus on awt/swing windows
29 @run main MouseWheelOnBackgroundComponent
30 */
31
32 /**
33 * MouseWheelOnBagroundComponent
34 *
35 * summary: Tests that wheel events don't change focus on background components
36 */
37
38 import javax.swing.*;
39 import java.awt.*;
40 import java.awt.event.FocusEvent;
41 import java.awt.event.FocusListener;
42 import java.awt.event.WindowEvent;
43
44 public class MouseWheelOnBackgroundComponent {
45
46 private static final String FG = "Foreground";
47 private static final String BG = "Background";
48
49 private static final String SCROLL_PANE = "scroller_";
50 private static final String TEXT_PANE = "text_";
51
52 private static JFrame background;
53 private static JFrame foreground;
54
55 private static final String LOREM_IPSUM = "Sed ut perspiciatis unde omnis iste natus " +
56 "error sit voluptatem accusantium doloremque laudantium, totam " +
57 "rem aperiam, eaque ipsa quae ab illo inventore veritatis et " +
58 "quasi architecto beatae vitae dicta sunt explicabo. Nemo enim " +
59 "ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit, " +
60 "sed quia consequuntur magni dolores eos qui ratione voluptatem sequi " +
61 "nesciunt. Neque porro quisquam est, qui dolorem ipsum quia dolor sit " +
62 "amet, consectetur, adipisci velit, sed quia non numquam eius modi tempora " +
63 "incidunt ut labore et dolore magnam aliquam quaerat voluptatem. " +
64 "Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis " +
65 "suscipit laboriosam, nisi ut aliquid ex ea commodi consequatur? Quis " +
66 "autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil " +
67 "molestiae consequatur, vel illum qui dolorem eum fugiat quo voluptas nulla " +
68 "pariatur?";
69
70 private static class FocusReporter implements FocusListener {
71
72 private JComponent pane;
73
74 Component lastFocusedComponent;
75
76 public FocusReporter() {
77 }
78
79 @Override
80 public void focusGained(FocusEvent e) {
81 lastFocusedComponent = e.getComponent();
82 }
83
84 @Override
85 public void focusLost(FocusEvent e) {
86 lastFocusedComponent = null;
87 }
88 }
89
90 private static FocusReporter reporter;
91
92 public static void main(String[] args) throws Exception {
93
94 boolean passed = false;
95
96 SwingUtilities.invokeAndWait(() -> {
97 reporter = new FocusReporter();
98
99 foreground = createFrame(FG, 100, 0, reporter);
100 background = createFrame(BG, 0, 100, reporter);
101
102 background.pack();
103 background.setVisible(true);
104
105 foreground.pack();
106 foreground.setVisible(true);
107 });
108
109 SwingUtilities.invokeAndWait(() -> {
110 foreground.toFront();
111 });
112
113 Robot robot = new Robot();
114 robot.waitForIdle();
115
116 robot.mouseMove(50, 300);
117 robot.waitForIdle();
118
119 robot.mouseWheel(-100);
120 robot.waitForIdle();
121
122 String shouldBeFocusedComponentName = TEXT_PANE + FG;
123 Component actual = reporter.lastFocusedComponent;
124 if (reporter.lastFocusedComponent != null &&
125 shouldBeFocusedComponentName.equals(actual.getName()))
126 {
127 passed = true;
128 }
129
130 robot.waitForIdle();
131
132 SwingUtilities.invokeAndWait(() -> {
133 foreground.dispatchEvent(new WindowEvent(foreground, WindowEvent.WINDOW_CLOSING));
134 background.dispatchEvent(new WindowEvent(background, WindowEvent.WINDOW_CLOSING));
135 });
136
137 robot.waitForIdle();
138
139 if (!passed) {
140 throw new RuntimeException("Wrong component has focus: " + actual);
141 }
142 }
143
144 private static JFrame createFrame(String name, int x, int y, FocusReporter reporter) {
145 JFrame frame = new JFrame(name);
146 frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
147 frame.setBounds(x, y, 600, 600);
148 frame.setPreferredSize(new Dimension(600, 600));
149
150 JTextArea text = new JTextArea();
151 text.setText(LOREM_IPSUM);
152 for (int i = 0; i < 10; i++) {
153 text.append(LOREM_IPSUM);
154 }
155
156 text.setLineWrap(true);
157 text.setName(TEXT_PANE + name);
158 text.addFocusListener(reporter);
159
160 JScrollPane scroller = new JScrollPane(text);
161 scroller.setName(SCROLL_PANE + name);
162 scroller.setWheelScrollingEnabled(true);
163 scroller.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
164 scroller.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
165 scroller.addFocusListener(reporter);
166
167 frame.add(scroller);
168
169 return frame;
170 }
171 }