Add menu highlighting logic via HX-Trigger, update templates for dynamic menu state management, and extend mixins to support menu highlighting.

backend/mixins.py

@@ -1,3 +1,5 @@
+import json
+
 from django.http import HttpResponse
 from django.template.loader import render_to_string
 from django_htmx.http import HttpResponseClientRedirect, HttpResponseClientRefresh
@@ -33,6 +35,9 @@ class HTMXViewMixin:
     # Optional: automatically push URL on GET
     htmx_push_url = None
     
+    # Optional: name of the menu item to highlight
+    menu_highlight = None
+    
     # Optional: trigger events after rendering
     htmx_trigger = None
     htmx_trigger_after_settle = None
@@ -62,9 +67,21 @@ class HTMXViewMixin:
                 response.headers["HX-Push-Url"] = self.htmx_push_url or request.get_full_path()
                 
             print(response.headers)
+            
+        # Build HX-Trigger payload
+        trigger_payload = {}
         
+        # 1. User-defined triggers
         if self.htmx_trigger:
-            response.headers["HX-Trigger"] = self.htmx_trigger
+            trigger_payload.update(json.loads(self.htmx_trigger))
+        
+        # 2. Auto menu highlight trigger
+        if self.menu_highlight:
+            trigger_payload["menuHighlight"] = self.menu_highlight
+        
+        # Emit HX-Trigger if anything is present
+        if trigger_payload:
+            response.headers["HX-Trigger"] = json.dumps(trigger_payload)
         
         if self.htmx_trigger_after_settle:
             response.headers["HX-Trigger-After-Settle"] = self.htmx_trigger_after_settle