def _get_callable_ref(listener, callback=None):
"""Returns a callable reference for the given listener"""
meth = getattr(listener, 'event_received', None)
if meth is not None and is_callable(meth):
return weakref.ref(listener, callback)
else:
return CallableRef(listener, callback)
def _get_callable_ref(listener, callback=None):
"""Returns a callable reference for the given listener"""
meth = getattr(listener, 'event_received', None)
if meth is not None and is_callable(meth):
return weakref.ref(listener, callback)
else:
return CallableRef(listener, callback)
def _fire_event(self, event_type, event_value, listeners=None):
"""Sends an event to all listeners or a specific one"""
if listeners is None:
listeners = self._listeners
if listeners is None:
return
if not isinstance(listeners, collections.Sequence):
listeners = listeners,
for listener in listeners:
if isinstance(listener, weakref.ref) or \
isinstance(listener, BoundMethodWeakref):
real_listener = listener()
else:
real_listener = listener
if real_listener is None:
continue
meth = getattr(real_listener, 'event_received', None)
if meth is not None and is_callable(meth):
real_listener.event_received(self, event_type, event_value)
elif is_callable(real_listener):
real_listener(self, event_type, event_value)
def _fire_event(self, event_type, event_value, listeners=None):
"""Sends an event to all listeners or a specific one"""
if listeners is None:
listeners = self._listeners
if listeners is None:
return
if not isinstance(listeners, collections.Sequence):
listeners = listeners,
for listener in listeners:
if isinstance(listener, weakref.ref) or \
isinstance(listener, BoundMethodWeakref):
real_listener = listener()
else:
real_listener = listener
if real_listener is None:
continue
meth = getattr(real_listener, 'event_received', None)
if meth is not None and is_callable(meth):
real_listener.event_received(self, event_type, event_value)
elif is_callable(real_listener):
real_listener(self, event_type, event_value)