/*
* Copyright (C) 2015-2017 PÂRIS Quentin
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
package org.phoenicis.javafx;
import org.phoenicis.scripts.ui.UiMessageSender;
import javafx.application.Platform;
import org.apache.commons.lang.mutable.MutableObject;
import java.util.concurrent.CountDownLatch;
import java.util.function.Supplier;
public class UiMessageSenderJavaFXImplementation implements UiMessageSender {
@Override
public <R> R run(Supplier<R> function) {
// runBackground synchronously on JavaFX thread
if (Platform.isFxApplicationThread()) {
return function.get();
}
// queue on JavaFX thread and wait for completion
final CountDownLatch doneLatch = new CountDownLatch(1);
final MutableObject result = new MutableObject();
Platform.runLater(() -> {
try {
result.setValue(function.get());
} finally {
doneLatch.countDown();
}
});
try {
doneLatch.await();
} catch (InterruptedException e) {
// ignore exception
}
return (R) result.getValue();
}
}