com.sun.javafx.webkit.EventLoopImpl Maven / Gradle / Ivy
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package com.sun.javafx.webkit;
import com.sun.javafx.tk.Toolkit;
import com.sun.webkit.EventLoop;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;
import javafx.application.Platform;
public final class EventLoopImpl extends EventLoop {
private static final long DELAY = 20;
private static final ScheduledExecutorService executor =
Executors.newSingleThreadScheduledExecutor();
@Override
protected void cycle() {
// Here we need to execute one or a small number of event loop cycles.
// In order to achive that, we enter and quickly exit a nested event
// loop. The request to exit the nested event loop is submitted with
// a short delay so as to throttle the outer
// ScriptDebugServer::pauseIfNeeded loop.
final Object key = new Object();
executor.schedule(() -> {
Platform.runLater(new Runnable() {
@Override
public void run() {
Toolkit.getToolkit().exitNestedEventLoop(key, null);
}
});
}, DELAY, TimeUnit.MILLISECONDS);
Toolkit.getToolkit().enterNestedEventLoop(key);
}
}