--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/Authentication/AuthenticationObserver.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,115 @@
+/*
+The MIT License
+
+Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+using System;
+using System.Threading.Tasks;
+using Chronos.Authentication;
+using Chronos.Modules.Navigation;
+using Chronos.Presentation.Core.Navigation;
+using Chronos.Presentation.Core.VirtualDesktops;
+using NLog;
+using nRoute.Components.Composition;
+using nRoute.Components.Messaging;
+using nRoute.Navigation;
+using nRoute.Services;
+
+namespace Chronos
+{
+    /// <summary>
+    /// Dedicated observer for authentication 
+    /// </summary>
+    [MapChannelObserver(typeof(AuthenticationInfo),
+        InitializationMode = InitializationMode.WhenAvailable,
+        Lifetime = InstanceLifetime.Singleton)]
+    public sealed class AuthenticationObserver : IObserver<AuthenticationInfo>
+    {
+        #region · Logger ·
+
+        private static Logger Logger = LogManager.GetCurrentClassLogger(); 
+
+        #endregion
+
+        #region · IObserver<AuthenticationInfo> Members ·
+
+        /// <summary>
+        /// Notifies the observer that the provider has finished sending push-based notifications.
+        /// </summary>
+        public void OnCompleted()
+        {
+        }
+
+        /// <summary>
+        /// Notifies the observer that the provider has experienced an error condition.
+        /// </summary>
+        /// <param name="error">An object that provides additional information about the error.</param>
+        public void OnError(Exception error)
+        {
+        }
+
+        /// <summary>
+        ///  Provides the observer with new data.
+        /// </summary>
+        /// <param name="value">The current notification information.</param>
+        public void OnNext(AuthenticationInfo value)
+        {
+            switch (value.Action)
+            {
+                case AuthenticationAction.LogOn:
+                    Logger.Debug("Autenticación del usuario");
+                    ServiceLocator.GetService<INavigationService>()
+                                  .Navigate(NavigateMode.Modal, NavigationRoutes.Login);
+                    break;
+
+                case AuthenticationAction.LoggedIn:
+                    Logger.Debug("Usuario autenticado correctamente");
+                    ServiceLocator.GetService<IVirtualDesktopManager>()
+                                  .ActivateDefaultDesktop();
+                    break;
+
+                case AuthenticationAction.LogOut:
+                    Logger.Debug("Cerrando sesión");
+                    Task t = Task.Factory.StartNew
+                    (
+                        () => 
+                        {
+                            ServiceLocator.GetService<IVirtualDesktopManager>()
+                                          .CloseAll();
+
+                            Channel<AuthenticationInfo>.Publish
+                            (
+                                new AuthenticationInfo 
+                                { 
+                                    Action = AuthenticationAction.LogOn 
+                                }, 
+                                true
+                            );
+                        }
+                    );
+                    break;
+            }
+        }
+
+        #endregion
+    }
+}