/**
* Kicks an event over to the appropriate event queue and waits for it to
* finish To avoid deadlocking, we manually run the NSRunLoop while waiting
* Any selector invoked using ThreadUtilities performOnMainThread will be
* processed in doAWTRunLoop The InvocationEvent will call
* LWCToolkit.stopAWTRunLoop() when finished, which will stop our manual
* run loop. Does not dispatch native events while in the loop
*/
public static void invokeAndWait(Runnable runnable, Component component)
throws InvocationTargetException {
Objects.requireNonNull(component, "Null component provided to invokeAndWait");
long mediator = createAWTRunLoopMediator();
InvocationEvent invocationEvent =
new InvocationEvent(component,
runnable,
() -> {
if (mediator != 0) {
stopAWTRunLoop(mediator);
}
},
true);
AppContext appContext = SunToolkit.targetToAppContext(component);
SunToolkit.postEvent(appContext, invocationEvent);
// 3746956 - flush events from PostEventQueue to prevent them from getting stuck and causing a deadlock
SunToolkit.flushPendingEvents(appContext);
doAWTRunLoop(mediator, false);
checkException(invocationEvent);
}
LWCToolkit.java 文件源码
java
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