fix(x_ray_eye): fetch the status of the queue in next event loop

csaxs_bec/bec_widgets/widgets/xray_eye/x_ray_eye.py

@@ -172,6 +172,7 @@ class XRayEye(BECWidget, QWidget):
 
         self.connect_motors()
         self.resize(800, 600)
+        QTimer.singleShot(0, self._init_queue_status)
         QTimer.singleShot(0, self._init_gui_trigger)
 
     def _init_ui(self):
@@ -428,6 +429,17 @@ class XRayEye(BECWidget, QWidget):
     def _release_queue_toggles(self):
         self._set_queue_toggles_blocked(False)
 
+    def _init_queue_status(self):
+        try:
+            msg = self.client.connector.get(MessageEndpoints.scan_queue_status())
+        except Exception as exc:
+            logger.warning(f"Failed to fetch initial scan queue status for XRayEye: {exc}")
+            return
+
+        if msg is None:
+            return
+        self._update_queue_toggles_from_busy_state(self._is_queue_busy(msg.content))
+
     @staticmethod
     def _is_queue_busy(msg_content: dict) -> bool:
         queues = msg_content.get("queue", {}) if isinstance(msg_content, dict) else {}
@@ -536,6 +548,7 @@ class XRayEye(BECWidget, QWidget):
 
     @SafeSlot(dict, dict)
     def on_queue_status_update(self, data, meta):
+        _ = meta
         self._update_queue_toggles_from_busy_state(self._is_queue_busy(data))
 
     @SafeSlot(bool, bool)