private static WinDef.HWND getHandle(IdeFrame frame) {
try {
ComponentPeer peer = ((Component) frame).getPeer();
Method getHWnd = peer.getClass().getMethod("getHWnd");
return new WinDef.HWND(new Pointer((Long) getHWnd.invoke(peer)));
} catch (Throwable e) {
LOG.error(e);
return null;
}
}
/**
* Actually performs the event posting. This is needed because the RI doesn't use the public
* postEvent() method when transferring events between event queues in push() and pop().
*
* @param evt the event to post
* @param priority the priority of the event
*/
private final void postEventImpl(AWTEvent evt, int priority) {
if (evt == null) throw new NullPointerException();
if (next != null) {
next.postEvent(evt);
return;
}
Object source = evt.getSource();
Queue q = queues[priority];
if (source instanceof Component) {
// For PaintEvents, ask the ComponentPeer to coalesce the event
// when the component is heavyweight.
Component comp = (Component) source;
ComponentPeer peer = comp.peer;
if (peer != null && evt instanceof PaintEvent && !(peer instanceof LightweightPeer))
peer.coalescePaintEvent((PaintEvent) evt);
// Check for any events already on the queue with the same source
// and ID.
AWTEvent previous = null;
for (AWTEvent qevt = q.queueHead; qevt != null; qevt = qevt.queueNext) {
Object src = qevt.getSource();
if (qevt.id == evt.id && src == comp) {
// If there are, call coalesceEvents on the source component
// to see if they can be combined.
Component srccmp = (Component) src;
AWTEvent coalescedEvt = srccmp.coalesceEvents(qevt, evt);
if (coalescedEvt != null) {
// Yes. Replace the existing event with the combined event.
if (qevt != coalescedEvt) {
if (previous != null) {
assert previous.queueNext == qevt;
previous.queueNext = coalescedEvt;
} else {
assert q.queueHead == qevt;
q.queueHead = coalescedEvt;
}
coalescedEvt.queueNext = qevt.queueNext;
if (q.queueTail == qevt) q.queueTail = coalescedEvt;
qevt.queueNext = null;
}
return;
}
}
previous = qevt;
}
}
if (q.queueHead == null) {
// We have an empty queue. Set this event both as head and as tail.
q.queueHead = evt;
q.queueTail = evt;
} else {
// Note: queueTail should not be null here.
q.queueTail.queueNext = evt;
q.queueTail = evt;
}
if (dispatchThread == null || !dispatchThread.isAlive()) {
dispatchThread = new EventDispatchThread(this);
dispatchThread.start();
}
notify();
}