def toggle_tree_view_listening(tree_view: Gtk.TreeView, handler_id: int,
func: Callable) -> Optional[int]:
if handler_id is not None: # The handler exists, stop listening
tree_view.disconnect(handler_id)
return None
else: # The handler doesn't exist, start listening
return tree_view.connect('cursor-changed', func)
def __init__(self, tree_view: Gtk.TreeView):
self.log = logging.getLogger('{m}.{c}'.format(
m=self.__class__.__module__, c=self.__class__.__name__))
tree_view.connect('key-press-event', self.on_key_press_event)
