--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/ViewModel/ShellViewModel.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,534 @@
+/*
+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.Collections.Generic;
+using System.IO;
+using System.Linq;
+using System.Reflection;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Shell;
+using System.Windows.Threading;
+using Chronos.Authentication;
+using Chronos.Modules.Navigation;
+using Chronos.Presentation.Core.Navigation;
+using Chronos.Presentation.Core.ViewModel;
+using Chronos.Presentation.Core.VirtualDesktops;
+using Chronos.Presentation.ViewModel;
+using Chronos.Presentation.Windows;
+using Chronos.Presentation.Windows.Navigation;
+using Chronos.WidgetLibrary;
+using NLog;
+using nRoute.Components;
+using nRoute.Components.Messaging;
+using nRoute.Navigation;
+
+namespace Chronos.ViewModel
+{
+    /// <summary>
+    /// Shell Window ViewModel
+    /// </summary>
+    public sealed class ShellViewModel 
+        : ViewModelBase
+    {
+        #region · Logger ·
+
+        private static Logger Logger = LogManager.GetCurrentClassLogger();
+
+        #endregion
+
+        #region · Fields ·
+
+        private WindowState windowState;
+        private string      userName;
+
+        #region · Commands ·
+
+        private ICommand maximizeCommand;
+        private ICommand minimizeCommand;
+        private ICommand showWidgetLibraryCommand;
+        private ICommand shutdownCommand;
+        private ICommand closeSessionCommand;
+        private ICommand switchDesktopCommand;
+        private ICommand showDesktopCommand;
+        private ICommand saveCurrentDesktopCommand;
+        private ICommand saveAllDesktopsCommand;
+        private ICommand showAboutBoxCommand;
+
+        #endregion
+
+        #region · Observers ·
+
+        private ChannelObserver<AuthenticationInfo>         authenticationObserver;
+        private ChannelObserver<ActiveDesktopChangedInfo>   activeDesktopObserver;
+        private ChannelObserver<NavigatedInfo>              navigatedObserver;
+
+        #endregion
+
+        #endregion
+
+        #region · Commands ·
+
+        /// <summary>
+        /// Gets the maximize command.
+        /// </summary>
+        /// <value>The maximize command.</value>
+        public ICommand MaximizeCommand
+        {
+            get
+            {
+                if (this.maximizeCommand == null)
+                {
+                    this.maximizeCommand = new ActionCommand(() => OnMaximizeWindow());
+                }
+
+                return this.maximizeCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the minimize command.
+        /// </summary>
+        /// <value>The minimize command.</value>
+        public ICommand MinimizeCommand
+        {
+            get
+            {
+                if (this.minimizeCommand == null)
+                {
+                    this.minimizeCommand = new ActionCommand(() => OnMinimizeWindow());
+                }
+
+                return this.minimizeCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the switch desktop command
+        /// </summary>
+        public ICommand SwitchDesktopCommand
+        {
+            get
+            {
+                if (this.switchDesktopCommand == null)
+                {
+                    this.switchDesktopCommand = new ActionCommand(() => OnSwitchDesktop());
+                }
+
+                return this.switchDesktopCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the show desktop command
+        /// </summary>
+        public ICommand ShowDesktopCommand
+        {
+            get
+            {
+                if (this.showDesktopCommand == null)
+                {
+                    this.showDesktopCommand = new ActionCommand(() => OnShowDesktop());
+                }
+
+                return this.showDesktopCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the save current desktop command.
+        /// </summary>
+        /// <value>The save desktop command.</value>
+        public ICommand SaveCurrentDesktopCommand
+        {
+            get
+            {
+                if (this.saveCurrentDesktopCommand == null)
+                {
+                    this.saveCurrentDesktopCommand = new ActionCommand(() => OnSaveCurrentDesktop());
+                }
+
+                return this.saveCurrentDesktopCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the save all desktops command.
+        /// </summary>
+        /// <value>The save desktop command.</value>
+        public ICommand SaveAllDesktopsCommand
+        {
+            get
+            {
+                if (this.saveAllDesktopsCommand == null)
+                {
+                    this.saveAllDesktopsCommand = new ActionCommand(() => OnSaveAllDesktops());
+                }
+
+                return this.saveAllDesktopsCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the show widget library command.
+        /// </summary>
+        /// <value>The show widget library command.</value>
+        public ICommand ShowWidgetLibraryCommand
+        {
+            get
+            {
+                if (this.showWidgetLibraryCommand == null)
+                {
+                    this.showWidgetLibraryCommand = new ActionCommand(() => OnShowWidgetLibrary());
+                }
+
+                return this.showWidgetLibraryCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the about box command.
+        /// </summary>
+        /// <value>The about box command.</value>
+        public ICommand ShowAboutBoxCommand
+        {
+            get
+            {
+                if (this.showAboutBoxCommand == null)
+                {
+                    this.showAboutBoxCommand = new ActionCommand(() => OnShowAboutBoxCommand());
+                }
+
+                return this.showAboutBoxCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the shutdown command
+        /// </summary>
+        public ICommand ShutdownCommand
+        {
+            get
+            {
+                if (this.shutdownCommand == null)
+                {
+                    this.shutdownCommand = new ActionCommand(() => OnShutdown());
+                }
+
+                return this.shutdownCommand;
+            }
+        }
+
+        /// <summary>
+        /// Gets the log off command
+        /// </summary>
+        public ICommand CloseSessionCommand
+        {
+            get
+            {
+                if (this.closeSessionCommand == null)
+                {
+                    this.closeSessionCommand = new ActionCommand(() => OnCloseSession());
+                }
+
+                return this.closeSessionCommand;
+            }
+        }
+
+        #endregion
+
+        #region · Properties ·
+
+        /// <summary>
+        /// Gets or sets the state of the window.
+        /// </summary>
+        /// <value>The state of the window.</value>
+        public WindowState WindowState
+        {
+            get { return this.windowState; }
+            set
+            {
+                if (this.windowState != value)
+                {
+                    this.windowState = value;
+                    this.NotifyPropertyChanged(() => WindowState);
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the active windows.
+        /// </summary>
+        /// <value>The active windows.</value>
+        public IList<INavigationViewModel> ActiveWindows
+        {
+            get
+            {
+                if (this.GetService<IVirtualDesktopManager>().HasDesktopActive)
+                {
+                    return this.GetService<IVirtualDesktopManager>().ActiveDesktopWindows;
+                }
+
+                return null;
+            }
+        }
+
+        /// <summary>
+        /// Gets the logged in user name
+        /// </summary>
+        public string UserName
+        {
+            get { return (!String.IsNullOrEmpty(this.userName) ? this.userName : "Sesión no iniciada"); }
+            private set
+            {
+                this.userName = value;
+                this.NotifyPropertyChanged(() => UserName);
+            }
+        }
+
+        #endregion
+
+        #region · Constructors ·
+
+        /// <summary>
+        /// Initializes a new instance of the <see cref="ShellViewModel"/> class.
+        /// </summary>
+        public ShellViewModel()
+            : base()
+        {
+            this.InitializeObservers();
+        }
+
+        #endregion
+
+        #region · Command Actions ·
+
+        /// <summary>
+        /// Handles the show widget library command action
+        /// </summary>
+        private void OnShowWidgetLibrary()
+        {
+            this.GetService<IVirtualDesktopManager>().Show<WidgetLibraryView>();
+        }
+        
+        /// <summary>
+        /// Handles the switch desktop command action
+        /// </summary>
+        private void OnSwitchDesktop()
+        {
+            this.GetService<IVirtualDesktopManager>().SwitchDesktop();
+        }
+
+        /// <summary>
+        /// Handles the show desktop command
+        /// </summary>
+        private void OnShowDesktop()
+        {
+            this.GetService<IVirtualDesktopManager>().ShowDesktop();
+        }
+
+        /// <summary>
+        /// Handles the save current desktop command action
+        /// </summary>
+        private void OnSaveCurrentDesktop()
+        {
+            this.GetService<IVirtualDesktopManager>().SaveCurrentDesktop();
+        }
+
+        /// <summary>
+        /// Handles the save all desktops command action
+        /// </summary>
+        private void OnSaveAllDesktops()
+        {
+            this.GetService<IVirtualDesktopManager>().SaveAllDesktops();
+        }
+
+        /// <summary>
+        /// Handles the shutdown command action
+        /// </summary>
+        private void OnShutdown()
+        {
+            Logger.Debug("Finalizando la sesión");
+            Application.Current.Shutdown();
+        }
+
+        /// <summary>
+        /// Closes the session
+        /// </summary>
+        private void OnCloseSession()
+        {
+            Channel<AuthenticationInfo>.Public.OnNext(
+                new AuthenticationInfo { Action = AuthenticationAction.LogOut }, true);
+        }
+
+        /// <summary>
+        /// Maximizes the window.
+        /// </summary>
+        private void OnMaximizeWindow()
+        {
+            if (this.WindowState == WindowState.Maximized)
+            {
+                this.WindowState = WindowState.Normal;
+            }
+            else
+            {
+                this.WindowState = WindowState.Maximized;
+            }
+
+            Logger.Debug("Cambiado el estado de la ventana principal de la aplicación ({0})", this.WindowState);
+        }
+
+        /// <summary>
+        /// Handles the minimize window command action
+        /// </summary>
+        private void OnMinimizeWindow()
+        {
+            this.WindowState = WindowState.Minimized;
+        }
+
+        private void OnShowAboutBoxCommand()
+        {
+            this.GetService<INavigationService>()
+                .Navigate(NavigateMode.Modal, NavigationRoutes.About);
+        }
+
+        #endregion
+
+        #region · Observer Initialization ·
+
+        private void InitializeObservers()
+        {
+            Logger.Debug("Inicializando observers de nroute");
+
+            // Authentication Observer
+            this.authenticationObserver = new ChannelObserver<AuthenticationInfo>(
+                (l) => OnAuthenticationAction(l));
+
+            // Subscribe on the UI Thread
+            this.authenticationObserver.Subscribe(ThreadOption.BackgroundThread);
+
+            // Active desktop changed observer
+            this.activeDesktopObserver = new ChannelObserver<ActiveDesktopChangedInfo>(
+                (l) => OnActiveDesktopChanged(l));
+
+            // Subscribe on the UI Thread
+            this.activeDesktopObserver.Subscribe(ThreadOption.UIThread);
+
+            // Navigation observers
+
+            // Navigated observer
+            this.navigatedObserver = new ChannelObserver<NavigatedInfo>(
+                (l) => OnNavigated(l));
+
+            this.navigatedObserver.Subscribe(ThreadOption.BackgroundThread);
+        }
+
+        #endregion
+
+        #region · Observer Actions ·
+
+        private void OnAuthenticationAction(AuthenticationInfo info)
+        {
+            switch (info.Action)
+            {
+                case AuthenticationAction.LogOn:
+                    break;
+
+                case AuthenticationAction.LoggedIn:
+                    this.Invoke(() => { this.UserName = info.UserId; });
+                    break;
+
+                case AuthenticationAction.LogOut:
+                    this.Invoke(() => { this.UserName = info.UserId; });
+                    break;
+            }
+        }
+
+        private void OnActiveDesktopChanged(ActiveDesktopChangedInfo info)
+        {
+            Logger.Debug("Cambiando el escritorio activo");
+
+            this.NotifyPropertyChanged(() => ActiveWindows);
+        }
+
+        private void OnNavigated(NavigatedInfo info)
+        {
+            Logger.Debug("Navegación finalizada correctamente ({0})", info.Request.RequestUrl);
+
+            this.CreateRecentNavigationEntry(info);
+        }
+
+        #endregion
+
+        #region · Windows 7 Taskbar ·
+
+        private void CreateRecentNavigationEntry(NavigatedInfo value)
+        {
+            if (value.Request.NavigationMode == NavigateMode.New)
+            {
+                this.Dispatcher.BeginInvoke(
+                    (Action)delegate
+                    {
+                        if (App.RunningOnWin7)
+                        {
+                            JumpList jl = JumpList.GetJumpList(Application.Current);
+
+                            if (jl != null)
+                            {
+                                if (jl.JumpItems.Count >= 10)
+                                {
+                                    jl.JumpItems.Clear();
+                                }
+
+                                var q = jl.JumpItems.OfType<JumpTask>().Where(t => t.Arguments.Equals(value.Request.RequestUrl));
+
+                                if (q.Count() == 0)
+                                {
+                                    jl.JumpItems.Add
+                                    (
+                                        new JumpTask
+                                        {
+                                            CustomCategory      = "Recent",
+                                            Title               = value.Title,
+                                            Arguments           = value.Request.RequestUrl,
+                                            IconResourcePath    = null,
+                                            IconResourceIndex   = -1,
+                                            Description         = null,
+                                            WorkingDirectory    =
+                                                Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location)
+                                        }
+                                    );
+
+                                    jl.Apply();
+                                }
+                            }
+                        }
+                    }, DispatcherPriority.Background);
+            }
+        }
+
+        #endregion
+    }
+}
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