app/helpers/trestle/navigation_helper.rb in trestle-0.9.4 vs app/helpers/trestle/navigation_helper.rb in trestle-0.9.5

@@ -5,7 +5,30 @@
     end
 
     def current_admin?(admin)
       respond_to?(:admin) && self.admin && self.admin.name == admin.name
     end
+
+    def navigation_group_collapsed?(group)
+      if collapsed_navigation_groups.include?(group.id)
+        # Explicitly collapsed by user
+        true
+      elsif group.collapse?
+        # Default to collapsed unless expanded by user
+        !expanded_navigation_groups.include?(group.id)
+      end
+    end
+
+  private
+    def collapsed_navigation_groups
+      @collapsed_navigation_groups ||= navigation_groups(:collapsed)
+    end
+
+    def expanded_navigation_groups
+      @expanded_navigation_groups ||= navigation_groups(:expanded)
+    end
+
+    def navigation_groups(state)
+      cookies["trestle:navigation:#{state}"].try(:split, ",") || []
+    end
   end
 end