NPanel: clear openedPanel attempt

Services/PanelService.qml

@@ -12,9 +12,12 @@ Singleton {
 
   // Currently opened panel
   property var openedPanel: null
+  readonly property bool hasOpenedPanel: (openedPanel !== null)
 
   property var registeredPanels: ({})
 
+
+
   // Register this panel
   function registerPanel(panel) {
     registeredPanels[panel.objectName] = panel
@@ -33,9 +36,15 @@ Singleton {
 
   // Helper to keep only one panel open at any time
   function willOpenPanel(panel) {
-    if (openedPanel && openedPanel != panel) {
+    if (openedPanel && openedPanel !== panel) {
       openedPanel.close()
     }
     openedPanel = panel
   }
+
+  function closedPanel(panel) {
+    if (openedPanel && openedPanel === panel) {
+      openedPanel = null
+    }
+  }
 }

Widgets/NPanel.qml

@@ -125,6 +125,7 @@ Loader {
     root.closed()
     active = false
     useButtonPosition = false // Reset button position usage
+    PanelService.closedPanel(root)
   }
 
   // -----------------------------------------