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