com.sun.javafx.webkit.prism.PrismInvoker Maven / Gradle / Ivy
/*
* Copyright (c) 2011, 2022, 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. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* 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.
*/
package com.sun.javafx.webkit.prism;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.FutureTask;
import java.util.concurrent.locks.ReentrantLock;
import com.sun.javafx.application.PlatformImpl;
import com.sun.javafx.logging.PlatformLogger;
import com.sun.javafx.tk.RenderJob;
import com.sun.javafx.tk.Toolkit;
import com.sun.webkit.Invoker;
public final class PrismInvoker extends Invoker {
private static final PlatformLogger log =
PlatformLogger.getLogger(PrismInvoker.class.getName());
public PrismInvoker() {
}
/*
* No synchronization b/w Event (User) & Render threads is required
* because FX synchronizes pulse and render operations itself.
*/
@Override protected boolean lock(ReentrantLock lock) {
return false;
}
@Override protected boolean unlock(ReentrantLock lock) {
return false;
}
@Override protected boolean isEventThread() {
return isEventThreadPrivate();
}
private static boolean isEventThreadPrivate() {
return Toolkit.getToolkit().isFxUserThread();
}
@Override public void checkEventThread() {
Toolkit.getToolkit().checkFxUserThread();
}
@Override public void invokeOnEventThread(final Runnable r) {
if (isEventThread()) {
r.run();
} else {
PlatformImpl.runLater(r);
}
}
@Override public void postOnEventThread(final Runnable r) {
PlatformImpl.runLater(r);
}
static void invokeOnRenderThread(final Runnable r) {
Toolkit.getToolkit().addRenderJob(new RenderJob(r));
}
static void runOnRenderThread(final Runnable r) {
if (Thread.currentThread().getName().startsWith("QuantumRenderer")) {
r.run();
} else {
FutureTask f = new FutureTask<>(r, null);
Toolkit.getToolkit().addRenderJob(new RenderJob(f));
try {
// block until job is complete
f.get();
} catch (ExecutionException | InterruptedException ex) {
log.severe("RenderJob error", ex);
}
}
}
}