csaxs_bec/bec_widgets/widgets/tomo_params/tomo_params.py

@@ -288,6 +288,11 @@ class TomoParamsWidget(BECWidget, QWidget):
         self._poll_timer = QTimer(self)
         self._poll_timer.setInterval(self._POLL_INTERVAL_MS)
         self._poll_timer.timeout.connect(self._on_poll)
+        self._banner_busy = False
+        self._banner_idle_timer = QTimer(self)
+        self._banner_idle_timer.setSingleShot(True)
+        self._banner_idle_timer.setInterval(5000)
+        self._banner_idle_timer.timeout.connect(self._hide_busy_banner)
         if self._profile is not None:
             self._poll_timer.start()
             self.refresh()
@@ -1013,20 +1018,33 @@ class TomoParamsWidget(BECWidget, QWidget):
         self._refresh_busy_banner()
 
     def _refresh_busy_banner(self) -> None:
-        """Show/hide the advisory busy banner based on current beamline state."""
+        """Show/hide the advisory busy banner based on current beamline state.
+
+        Hiding is debounced: once shown, the banner stays up for at least 5s
+        of continuous idle before it's cleared, so brief blips in the queue
+        status (or quick commands) don't cause it to flicker.
+        """
         banner = getattr(self, "_busy_banner", None)
         if banner is None:
             return
         reason = self._beamline_busy_reason()
         if reason:
+            self._banner_idle_timer.stop()
             banner.setText(
                 f"\u26a0  Beamline busy — {reason}.\n"
                 'Editing is allowed, but Submit is blocked -- use "Add to queue" '
                 "to save edits as a new job instead."
             )
             banner.setVisible(True)
-        else:
+            self._banner_busy = True
+        elif self._banner_busy and not self._banner_idle_timer.isActive():
+            self._banner_idle_timer.start()
+
+    def _hide_busy_banner(self) -> None:
+        banner = getattr(self, "_busy_banner", None)
+        if banner is not None:
             banner.setVisible(False)
+        self._banner_busy = False
 
     # ── public refresh API ────────────────────────────────────────────────────
 
@@ -1310,6 +1328,7 @@ class TomoParamsWidget(BECWidget, QWidget):
 
     def cleanup(self) -> None:
         self._poll_timer.stop()
+        self._banner_idle_timer.stop()
         super().cleanup()