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 /* @test
25 *
26 * @bug 6608456
27 * @author Igor Kushnirskiy
28 * @modules java.desktop/com.sun.java.swing
29 * @summary tests if delegate RepaintManager gets invoked.
30 */
31
32 import java.awt.*;
33 import java.lang.reflect.Method;
34 import java.util.concurrent.Callable;
35 import java.util.concurrent.FutureTask;
36 import java.util.concurrent.TimeUnit;
37
38 import javax.swing.JComponent;
39 import javax.swing.JButton;
40 import javax.swing.JFrame;
41 import javax.swing.RepaintManager;
42 import javax.swing.SwingUtilities;
43
44
45
46 public class bug6608456 {
47 private static final TestFuture testFuture = new TestFuture();
48 public static void main(String[] args) throws Exception {
49 final JComponent component = invokeAndWait(
50 new Callable<JComponent>() {
51 public JComponent call() throws Exception {
52 RepaintManager.setCurrentManager(new TestRepaintManager());
53 JFrame frame = new JFrame("test");
54 frame.setLayout(new FlowLayout());
55 JButton button = new JButton("default");
56
57 frame.add(button);
58 button = new JButton("delegate");
59 if ( ! registerDelegate(
60 button, new TestRepaintManager())) {
61 return null;
62 }
63 frame.add(button);
64 frame.pack();
65 frame.setVisible(true);
66 return button;
67 }
68 });
69 if (component == null) {
70 throw new RuntimeException("failed. can not register delegate");
71 }
72 blockTillDisplayed(component);
73 // trigger repaint for delegate RepaintManager
74 invokeAndWait(
75 new Callable<Void>() {
76 public Void call() {
77 component.repaint();
78 return null;
79 }
80 });
81 try {
82 if (testFuture.get(10, TimeUnit.SECONDS)) {
83 // passed
84 }
85 } catch (Exception e) {
86 throw new RuntimeException("failed", e);
87 } finally {
88 JFrame frame = (JFrame) SwingUtilities
89 .getAncestorOfClass(JFrame.class, component);
90 if (frame != null) {
91 frame.dispose();
92 }
93 }
94 }
95 static class TestRepaintManager extends RepaintManager {
96 @Override
97 public void addDirtyRegion(JComponent c, int x, int y, int w, int h) {
98 if (RepaintManager.currentManager(c) == this) {
99 testFuture.defaultCalled();
100 } else {
101 testFuture.delegateCalled();
102 }
103 super.addDirtyRegion(c, x, y, w, h);
104 }
105 }
106 static class TestFuture extends FutureTask<Boolean> {
107 private volatile boolean defaultCalled = false;
108 private volatile boolean delegateCalled = false;
109 public TestFuture() {
110 super(new Callable<Boolean>() {
111 public Boolean call() {
112 return null;
113 }
114 });
115 }
116 public void defaultCalled() {
117 defaultCalled = true;
118 updateState();
119 }
120 public void delegateCalled() {
121 delegateCalled = true;
122 updateState();
123 }
124 private void updateState() {
125 if (defaultCalled && delegateCalled) {
126 set(Boolean.TRUE);
127 }
128 }
129 }
130
131 private static boolean registerDelegate(JComponent c,
132 RepaintManager repaintManager) {
133 boolean rv = false;
134 try {
135 Class<?> clazz = Class.forName("com.sun.java.swing.SwingUtilities3");
136 Method method = clazz.getMethod("setDelegateRepaintManager",
137 JComponent.class, RepaintManager.class);
138 method.invoke(clazz, c, repaintManager);
139 rv = true;
140 } catch (Exception ignore) {
141 }
142 return rv;
143 }
144 static <T> T invokeAndWait(Callable<T> callable) throws Exception {
145 FutureTask<T> future = new FutureTask<T>(callable);
146 SwingUtilities.invokeLater(future);
147 return future.get();
148 }
149
150 public static void blockTillDisplayed(Component comp) {
151 Point p = null;
152 while (p == null) {
153 try {
154 p = comp.getLocationOnScreen();
155 } catch (IllegalStateException e) {
156 try {
157 Thread.sleep(100);
158 } catch (InterruptedException ie) {
159 }
160 }
161 }
162 }
163 }