def handle(self, event: object) -> None:
"""
Handle events coming from elements.
"""
if isinstance(event, UnlinkEvent):
self._unlink_element(event.element)
event = ElementDeleted(self, event.element)
if self.event_manager and not self._block_events:
self.event_manager.handle(event)
def handle(self, event: object) -> None:
"""Handle events coming from elements."""
if isinstance(event, UnlinkEvent):
element = event.element
assert isinstance(element.id, str)
try:
del self._elements[element.id]
except KeyError:
return
event = ElementDeleted(self, event.element)
if self.event_manager and not self._block_events:
self.event_manager.handle(event)
def _undo_create_event():
try:
del factory._elements[element.id]
except KeyError:
pass # Key was probably already removed in an unlink call
self.event_manager.handle(ElementDeleted(factory, element))