Refactored IShellSettingsEventHandler to prepare a relocation to DefaultOrchardHost

Need some autofac tweeks as ShellSettingsManager can't have a dependency on, and DefaultOrchardHost can't implement IEventHandler
Currently modified IOrchardHost by adding InvalidateShells() which is called by TenantService.
To do: Remove InvalidateShell, make DefaultOrchardHost implement IShellSettingsEventHandler, and make ShellSettingsManager fire the events

--HG--
branch : dev

src/Orchard.Web/Modules/Orchard.MultiTenancy/Services/ShellSettingsEventHandler.cs

@@ -6,22 +6,14 @@ using Orchard.Environment;
 namespace Orchard.MultiTenancy.Services {
     public class ShellSettingsEventHandler : IShellSettingsEventHandler, IDependency {
 
-        private readonly IRunningShellTable _runningShellTable;
+        private readonly IOrchardHost _orchardHost;
 
-        public ShellSettingsEventHandler(IRunningShellTable runningShellTable) {
-            _runningShellTable = runningShellTable;        
+        public ShellSettingsEventHandler(IOrchardHost orchardHost) {
+            _orchardHost = orchardHost;        
         }
 
-        public void Created(ShellSettings settings) {
-            _runningShellTable.Add(settings);
-        }
-
-        public void Deleted(ShellSettings settings) {
-            _runningShellTable.Remove(settings);
-        }
-
-        public void Updated(ShellSettings settings) {
-            _runningShellTable.Update(settings);
+        public void Saved(ShellSettings settings) {
+            _orchardHost.InvalidateShells();
         }
     }
 }

src/Orchard.Web/Modules/Orchard.MultiTenancy/Services/TenantService.cs

@@ -22,14 +22,14 @@ namespace Orchard.MultiTenancy.Services {
 
         public void CreateTenant(ShellSettings settings) {
             _shellSettingsManager.SaveSettings(settings);
-            _shellSettingsEventHandler.Created(settings);
+            _shellSettingsEventHandler.Saved(settings);
         }
 
         public void UpdateTenant(ShellSettings settings) {
             var tenant = GetTenants().FirstOrDefault(ss => ss.Name == settings.Name);
             if ( tenant != null ) {
                 _shellSettingsManager.SaveSettings(settings);
-                _shellSettingsEventHandler.Updated(settings);
+                _shellSettingsEventHandler.Saved(settings);
             }
 
         }

src/Orchard/Environment/DefaultOrchardHost.cs

@@ -10,6 +10,7 @@ using Orchard.Logging;
 using Orchard.Mvc;
 using Orchard.Mvc.ViewEngines;
 using Orchard.Utility.Extensions;
+using Orchard.Events;
 
 namespace Orchard.Environment {
     public class DefaultOrchardHost : IOrchardHost {
@@ -136,12 +137,12 @@ namespace Orchard.Environment {
         }
 
         public void Process(string messageName, IDictionary<string, string> eventData) {
-            if (messageName == "ShellSettings_Saved") {
-                _current = null;
-            }
-            else if (messageName == "ShellDescriptor_Changed") {
+            if (messageName == "ShellDescriptor_Changed") {
                 _current = null;
             }
         }
+        public void InvalidateShells() {
+            _current = null;
+        }
     }
 }

src/Orchard/Environment/IOrchardHost.cs

@@ -27,5 +27,10 @@ namespace Orchard.Environment {
         /// Services may be resolved from within this instance to configure and initialize it's storage.
         /// </summary>
         IStandaloneEnvironment CreateStandaloneEnvironment(ShellSettings shellSettings);
+
+        /// <summary>
+        /// Resets Shell settings
+        /// </summary>
+        void InvalidateShells();
     }    
 }

src/Orchard/Events/IShellSettingsEventHandler.cs

@@ -2,8 +2,6 @@
 
 namespace Orchard.Events {
     public interface IShellSettingsEventHandler : IEventHandler {
-        void Created(ShellSettings settings);
-        void Deleted(ShellSettings settings);
-        void Updated(ShellSettings settings);
+        void Saved(ShellSettings settings);
     }
 }