def main_thread(func, *args, **kwargs):
""" Schedue `func` to be called on the main thread. """
pool = NSAutoreleasePool.new()
obj = MainThreadHelper.new()
obj.func = lambda: func(*args, **kwargs)
selector = objc.selector(obj.onMainThread, signature='v@:')
later = obj.performSelectorOnMainThread_withObject_waitUntilDone_
later(selector, None, False)
def object_and_selector_for_callback(callback, *args, **kwargs):
pool = NSAutoreleasePool.new()
obj = MainThreadHelper.new()
obj.func = lambda: callback(*args, **kwargs)
selector = objc.selector(obj.onMainThread, signature='v@:')
return obj, selector
