def _on_label_link_activate(self, label, uri):
if not self._dialog:
self._dialog = MultiheadSetupDialog(self)
self._dialog.props.transient_for = self._widgets[
'multihead_label'].get_toplevel()
for key, klass in self.EntriesSetup:
self._adapters[key].base_entry = klass(
WidgetsWrapper(self._dialog.builder, key))
self._dialog.run()
self._dialog.hide()
return True
