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/*
* Copyright (c) 2007, 2016, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
/*
* @test
* @key headful
*
* @bug 6608456
* @author Igor Kushnirskiy
* @modules java.desktop/com.sun.java.swing
* @summary tests if delegate RepaintManager gets invoked.
*/
import java.awt.*;
import java.lang.reflect.Method;
import java.util.concurrent.Callable;
import java.util.concurrent.FutureTask;
import java.util.concurrent.TimeUnit;
import javax.swing.JComponent;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.RepaintManager;
import javax.swing.SwingUtilities;
public class bug6608456 {
private static final TestFuture testFuture = new TestFuture();
public static void main(String[] args) throws Exception {
final JComponent component = invokeAndWait(
new Callable<JComponent>() {
public JComponent call() throws Exception {
RepaintManager.setCurrentManager(new TestRepaintManager());
JFrame frame = new JFrame("test");
frame.setLayout(new FlowLayout());
JButton button = new JButton("default");
frame.add(button);
button = new JButton("delegate");
if ( ! registerDelegate(
button, new TestRepaintManager())) {
return null;
}
frame.add(button);
frame.pack();
frame.setVisible(true);
return button;
}
});
if (component == null) {
throw new RuntimeException("failed. can not register delegate");
}
blockTillDisplayed(component);
// trigger repaint for delegate RepaintManager
invokeAndWait(
new Callable<Void>() {
public Void call() {
component.repaint();
return null;
}
});
try {
if (testFuture.get(10, TimeUnit.SECONDS)) {
// passed
}
} catch (Exception e) {
throw new RuntimeException("failed", e);
} finally {
JFrame frame = (JFrame) SwingUtilities
.getAncestorOfClass(JFrame.class, component);
if (frame != null) {
frame.dispose();
}
}
}
static class TestRepaintManager extends RepaintManager {
@Override
public void addDirtyRegion(JComponent c, int x, int y, int w, int h) {
if (RepaintManager.currentManager(c) == this) {
testFuture.defaultCalled();
} else {
testFuture.delegateCalled();
}
super.addDirtyRegion(c, x, y, w, h);
}
}
static class TestFuture extends FutureTask<Boolean> {
private volatile boolean defaultCalled = false;
private volatile boolean delegateCalled = false;
public TestFuture() {
super(new Callable<Boolean>() {
public Boolean call() {
return null;
}
});
}
public void defaultCalled() {
defaultCalled = true;
updateState();
}
public void delegateCalled() {
delegateCalled = true;
updateState();
}
private void updateState() {
if (defaultCalled && delegateCalled) {
set(Boolean.TRUE);
}
}
}
private static boolean registerDelegate(JComponent c,
RepaintManager repaintManager) {
boolean rv = false;
try {
Class<?> clazz = Class.forName("com.sun.java.swing.SwingUtilities3");
Method method = clazz.getMethod("setDelegateRepaintManager",
JComponent.class, RepaintManager.class);
method.invoke(clazz, c, repaintManager);
rv = true;
} catch (Exception ignore) {
}
return rv;
}
static <T> T invokeAndWait(Callable<T> callable) throws Exception {
FutureTask<T> future = new FutureTask<T>(callable);
SwingUtilities.invokeLater(future);
return future.get();
}
public static void blockTillDisplayed(Component comp) {
Point p = null;
while (p == null) {
try {
p = comp.getLocationOnScreen();
} catch (IllegalStateException e) {
try {
Thread.sleep(100);
} catch (InterruptedException ie) {
}
}
}
}
}
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