create event system

src/tasks/connector.rs

@@ -233,6 +233,7 @@ impl ConnectorHandler {
             pinned: Default::default(),
             tearing: Default::default(),
             active_zwlr_gamma_control: Default::default(),
+            workspace_switched: self.state.lazy_event_sources.create_source(),
         });
         on.update_visible();
         on.update_rects();