def append(self, callback): """Just like list.append, except it can also handle lists and discards None-values""" if callback is None: pass elif callable(callback): list.append(self, WeakMethod(callback)) elif isinstance(callback, list, tuple): for i in callback: self.append(i) else: assert False
class _Event(object):
def __init__(self, loop, callback, timeout, starttime):
self.loop = loop
self.callback = WeakMethod(callback)
self.timeout = timeout
self._last_dt = starttime
self._dt = 0.
def do(self, dt):
if self.callback.is_dead():
return False
self.callback()(dt)
def tick(self, curtime):
# timeout happen ?
if curtime - self._last_dt < self.timeout:
return True
# calculate current timediff for this event
self._dt = curtime - self._last_dt
self._last_dt = curtime
# call the callback
if self.callback.is_dead():
return False
ret = self.callback()(self._dt)
# if it's a once event, don't care about the result
# just remove the event
if not self.loop:
return False
# if user return an explicit false,
# remove the event
if ret == False:
return False
return True
def __init__(self, loop, callback, timeout, starttime):
self.loop = loop
self.callback = WeakMethod(callback)
self.timeout = timeout
self._last_dt = starttime
self._dt = 0.
def __contains__(self, elem): if isinstance(elem, WeakMethod): return list.__contains__(self, elem) else: return WeakMethod(elem) in self
def remove(self, elem): if not isinstance(elem, WeakMethod): elem = WeakMethod(elem) list.remove(self, elem)
