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fix: 'disconnect_slot' has to be symmetric with 'connect_slot' regarding QtThreadSafeCallback

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This commit is contained in:
guijar_m
2024-04-30 17:27:02 +02:00
parent 98cb2c08ea
commit 0dfcaa4b70
2 changed files with 92 additions and 3 deletions
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bec_widgets/utils/bec_dispatcher.py
+9 -1
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@@ -129,7 +129,15 @@ class BECDispatcher:
self._slots[slot].update(set(topics_str))
def disconnect_slot(self, slot: Callable, topics: Union[str, list]):
self.client.connector.unregister(topics, cb=slot)
# find the right slot to disconnect from ;
# slot callbacks are wrapped in QtThreadSafeCallback objects,
# but the slot we receive here is the original callable
for connected_slot in self._slots:
if connected_slot.cb == slot:
break
else:
return
self.client.connector.unregister(topics, cb=connected_slot)
topics_str, _ = self.client.connector._convert_endpointinfo(topics)
self._slots[slot].difference_update(set(topics_str))
if not self._slots[slot]: