Fixed when tab already exists + InstancesDebugger

src/myfasthtml/controls/TabsManager.py

@@ -115,6 +115,11 @@ class TabsManager(MultipleInstance):
     if auto_increment:
       label = f"{label}_{self._get_tab_count()}"
     component = component or VisNetwork(self, nodes=vis_nodes, edges=vis_edges)
+    
+    tab_id = self._tab_already_exists(label, component)
+    if tab_id:
+      return self.show_tab(tab_id)
+    
     tab_id = self.add_tab(label, component)
     return (
         self._mk_tabs_controller(),
@@ -145,14 +150,7 @@ class TabsManager(MultipleInstance):
       component_id = component.get_id()
     
     # Check if a tab with the same component_type, component_id AND label already exists
-    existing_tab_id = None
-    if component_id is not None:
-      for tab_id, tab_data in state.tabs.items():
-        if (tab_data.get('component_type') == component_type and
-            tab_data.get('component_id') == component_id and
-            tab_data.get('label') == label):
-          existing_tab_id = tab_id
-          break
+    existing_tab_id = self._tab_already_exists(label, component)
     
     if existing_tab_id:
       # Update existing tab (only the component instance in memory)
@@ -365,6 +363,22 @@ class TabsManager(MultipleInstance):
       hx_swap_oob=f"beforeend:#{self._id}-content-wrapper",
     )
   
+  def _tab_already_exists(self, label, component):
+    if not isinstance(component, BaseInstance):
+      return None
+    
+    component_type = component.get_prefix() if isinstance(component, BaseInstance) else type(component).__name__
+    component_id = component.get_id()
+    
+    if component_id is not None:
+      for tab_id, tab_data in self._state.tabs.items():
+        if (tab_data.get('component_type') == component_type and
+            tab_data.get('component_id') == component_id and
+            tab_data.get('label') == label):
+          return tab_id
+    
+    return None
+  
   def _get_tab_list(self):
     return [self._state.tabs[tab_id] for tab_id in self._state.tabs_order if tab_id in self._state.tabs]