More work on streamlining package development for views and conventions.

src/Umbraco.Web/Trees/Menu/MenuItemCollection.cs

@@ -14,7 +14,7 @@ namespace Umbraco.Web.Trees.Menu
     {
         private readonly string _packageFolderName;
         private readonly List<MenuItem> _menuItems;
-
+        
         public MenuItemCollection()
         {
             _menuItems = new List<MenuItem>();

src/Umbraco.Web/Trees/TreeController.cs

@@ -1,11 +1,14 @@
 using System;
+using System.Collections.Concurrent;
 using System.Globalization;
 using System.Linq;
 using System.Net.Http.Formatting;
 using Umbraco.Core;
+using Umbraco.Web.Mvc;
 using Umbraco.Web.Trees.Menu;
 using Umbraco.Web.WebApi;
 using Umbraco.Web.WebApi.Filters;
+using Constants = Umbraco.Core.Constants;
 
 namespace Umbraco.Web.Trees
 {
@@ -15,6 +18,7 @@ namespace Umbraco.Web.Trees
     public abstract class TreeController : UmbracoAuthorizedApiController
     {
         private readonly TreeAttribute _attribute;
+        private readonly MenuItemCollection _menuItemCollection;
 
         /// <summary>
         /// Remove the xml formatter... only support JSON!
@@ -41,6 +45,19 @@ namespace Umbraco.Web.Trees
 
             //assign the properties of this object to those of the metadata attribute
             _attribute = treeAttributes.First();
+
+            //Create the menu item collection with the area nem already specified
+            _menuItemCollection = Metadata.AreaName.IsNullOrWhiteSpace() 
+                ? new MenuItemCollection() 
+                : new MenuItemCollection(Metadata.AreaName);
+        }
+
+        /// <summary>
+        /// Returns a menu item collection to be used to return the menu items from GetMenuForNode
+        /// </summary>
+        public MenuItemCollection MenuItems
+        {
+            get { return _menuItemCollection; }
         }
 
         /// <summary>
@@ -300,6 +317,7 @@ namespace Umbraco.Web.Trees
 
         #endregion
 
+        #region Events
         public static event EventHandler<TreeNodesRenderingEventArgs> TreeNodesRendering;
 
         private static void OnTreeNodesRendering(TreeController instance, TreeNodesRenderingEventArgs e)
@@ -314,6 +332,49 @@ namespace Umbraco.Web.Trees
         {
             var handler = RootNodeRendering;
             if (handler != null) handler(instance, e);
+        } 
+        #endregion
+
+        #region Metadata
+        /// <summary>
+        /// stores the metadata about plugin controllers
+        /// </summary>
+        private static readonly ConcurrentDictionary<Type, PluginControllerMetadata> MetadataStorage = new ConcurrentDictionary<Type, PluginControllerMetadata>();
+
+        /// <summary>
+        /// Returns the metadata for this instance
+        /// </summary>
+        internal PluginControllerMetadata Metadata
+        {
+            get { return GetMetadata(this.GetType()); }
         }
+
+        /// <summary>
+        /// Returns the metadata for a PluginController
+        /// </summary>
+        /// <param name="type"></param>
+        /// <returns></returns>
+        internal static PluginControllerMetadata GetMetadata(Type type)
+        {
+
+            return MetadataStorage.GetOrAdd(type, type1 =>
+            {
+                var attribute = type.GetCustomAttribute<PluginControllerAttribute>(false);
+
+                var meta = new PluginControllerMetadata()
+                {
+                    AreaName = attribute == null ? null : attribute.AreaName,
+                    ControllerName = ControllerExtensions.GetControllerName(type),
+                    ControllerNamespace = type.Namespace,
+                    ControllerType = type
+                };
+
+                MetadataStorage.TryAdd(type, meta);
+
+                return meta;
+            });
+
+        } 
+        #endregion
     }
 }