1 /*
2 * Copyright (c) 2007, 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 *
28 * @bug 6608456
29 * @author Igor Kushnirskiy
30 * @modules java.desktop/com.sun.java.swing
31 * @summary tests if delegate RepaintManager gets invoked.
32 */
33
34 import java.awt.*;
35 import java.lang.reflect.Method;
36 import java.util.concurrent.Callable;
37 import java.util.concurrent.FutureTask;
38 import java.util.concurrent.TimeUnit;
39
40 import javax.swing.JComponent;
41 import javax.swing.JButton;
42 import javax.swing.JFrame;
43 import javax.swing.RepaintManager;
44 import javax.swing.SwingUtilities;
45
46
47
48 public class bug6608456 {
49 private static final TestFuture testFuture = new TestFuture();
50 public static void main(String[] args) throws Exception {
51 final JComponent component = invokeAndWait(
52 new Callable<JComponent>() {
53 public JComponent call() throws Exception {
54 RepaintManager.setCurrentManager(new TestRepaintManager());
55 JFrame frame = new JFrame("test");
56 frame.setLayout(new FlowLayout());
57 JButton button = new JButton("default");
58
59 frame.add(button);
60 button = new JButton("delegate");
61 if ( ! registerDelegate(
62 button, new TestRepaintManager())) {
63 return null;
64 }
65 frame.add(button);
66 frame.pack();
67 frame.setVisible(true);
68 return button;
69 }
70 });
71 if (component == null) {
72 throw new RuntimeException("failed. can not register delegate");
73 }
74 blockTillDisplayed(component);
75 // trigger repaint for delegate RepaintManager
76 invokeAndWait(
77 new Callable<Void>() {
78 public Void call() {
79 component.repaint();
80 return null;
81 }
82 });
83 try {
84 if (testFuture.get(10, TimeUnit.SECONDS)) {
85 // passed
86 }
87 } catch (Exception e) {
88 throw new RuntimeException("failed", e);
89 } finally {
90 JFrame frame = (JFrame) SwingUtilities
91 .getAncestorOfClass(JFrame.class, component);
92 if (frame != null) {
93 frame.dispose();
94 }
95 }
96 }
97 static class TestRepaintManager extends RepaintManager {
98 @Override
99 public void addDirtyRegion(JComponent c, int x, int y, int w, int h) {
100 if (RepaintManager.currentManager(c) == this) {
101 testFuture.defaultCalled();
102 } else {
103 testFuture.delegateCalled();
104 }
105 super.addDirtyRegion(c, x, y, w, h);
106 }
107 }
108 static class TestFuture extends FutureTask<Boolean> {
109 private volatile boolean defaultCalled = false;
110 private volatile boolean delegateCalled = false;
111 public TestFuture() {
112 super(new Callable<Boolean>() {
113 public Boolean call() {
114 return null;
115 }
116 });
117 }
118 public void defaultCalled() {
119 defaultCalled = true;
120 updateState();
121 }
122 public void delegateCalled() {
123 delegateCalled = true;
124 updateState();
125 }
126 private void updateState() {
127 if (defaultCalled && delegateCalled) {
128 set(Boolean.TRUE);
129 }
130 }
131 }
132
133 private static boolean registerDelegate(JComponent c,
134 RepaintManager repaintManager) {
135 boolean rv = false;
136 try {
137 Class<?> clazz = Class.forName("com.sun.java.swing.SwingUtilities3");
138 Method method = clazz.getMethod("setDelegateRepaintManager",
139 JComponent.class, RepaintManager.class);
140 method.invoke(clazz, c, repaintManager);
141 rv = true;
142 } catch (Exception ignore) {
143 }
144 return rv;
145 }
146 static <T> T invokeAndWait(Callable<T> callable) throws Exception {
147 FutureTask<T> future = new FutureTask<T>(callable);
148 SwingUtilities.invokeLater(future);
149 return future.get();
150 }
151
152 public static void blockTillDisplayed(Component comp) {
153 Point p = null;
154 while (p == null) {
155 try {
156 p = comp.getLocationOnScreen();
157 } catch (IllegalStateException e) {
158 try {
159 Thread.sleep(100);
160 } catch (InterruptedException ie) {
161 }
162 }
163 }
164 }
165 }