@Override
protected void disposeImpl() {
deactivateDisplayListener();
SurfaceData oldData = getSurfaceData();
synchronized (surfaceDataLock) {
surfaceData = null;
}
if (oldData != null) {
oldData.invalidate();
}
if (isGrabbing()) {
ungrab();
}
if (warningWindow != null) {
warningWindow.dispose();
}
platformWindow.dispose();
super.disposeImpl();
}
