def _undo_create_event():
try:
del factory._elements[element.id]
except KeyError:
pass # Key was probably already removed in an unlink call
self.component_registry.handle(ElementDeleteEvent(
factory, element))
def handle(self, event):
"""
Handle events coming from elements.
"""
if type(event) is UnlinkEvent:
self._unlink_element(event.element)
event = ElementDeleteEvent(self, event.element)
if self.event_manager and not self._block_events:
self.event_manager.handle(event)
def _unlink_element(self, element):
"""
NOTE: Invoked from Element.unlink() to perform an element unlink.
"""
self.component_registry.handle(ElementDeleteEvent(self, element))
super(ElementFactoryService, self)._unlink_element(element)