From 3922abc31ef8898e955b34ec5ba548f4c72e6b8b Mon Sep 17 00:00:00 2001
From: loudej <none@none>
Date: Fri, 22 Jan 2010 10:25:50 +0000
Subject: [PATCH] When top level menu is empty due to security constraints, and
 it's not itself a link, it is not displayed

--HG--
extra : convert_revision : svn%3A5ff7c347-ad56-4c35-b696-ccb81de16e03/trunk%4045838
---
 src/Orchard/UI/Navigation/NavigationManager.cs | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/src/Orchard/UI/Navigation/NavigationManager.cs b/src/Orchard/UI/Navigation/NavigationManager.cs
index b50f25e95..3573c90cc 100644
--- a/src/Orchard/UI/Navigation/NavigationManager.cs
+++ b/src/Orchard/UI/Navigation/NavigationManager.cs
@@ -23,7 +23,14 @@ namespace Orchard.UI.Navigation {
         protected virtual IUser CurrentUser { get; [UsedImplicitly] private set; }
 
         public IEnumerable<MenuItem> BuildMenu(string menuName) {
-            return Reduce(Merge(AllSources(menuName))).ToArray();
+            return Crop(Reduce(Merge(AllSources(menuName)))).ToArray();
+        }
+
+        private IEnumerable<MenuItem> Crop(IEnumerable<MenuItem> items) {
+            foreach(var item in items) {
+                if (item.Items.Any() || item.RouteValues != null)
+                    yield return item;
+            }
         }
 
         private IEnumerable<MenuItem> Reduce(IEnumerable<MenuItem> items) {