--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/ViewModel/LoginViewModel.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,141 @@
+using System;
+using System.Windows;
+using Chronos.Authentication;
+using Chronos.Model;
+using Chronos.Presentation.Core.VirtualDesktops;
+using Chronos.Presentation.Core.Windows;
+using Chronos.Presentation.ViewModel;
+using nRoute.Components.Messaging;
+using nRoute.Services;
+
+namespace Chronos.ViewModel
+{
+  /// <summary>
+  /// Login view view model class
+  /// </summary>
+  public sealed class LoginViewModel
+      : WindowViewModel<UserLogin>
+  {
+    #region · Data Properties ·
+
+    /// <summary>
+    /// Gets or sets the user name
+    /// </summary>
+    public string UserId
+    {
+      get { return this.Entity.UserId; }
+      set
+      {
+        if (this.Entity.UserId != value)
+        {
+          this.Entity.UserId = value;
+          this.NotifyPropertyChanged(() => UserId);
+
+          this.InquiryCommand.RequeryCanExecute();
+        }
+      }
+    }
+
+    /// <summary>
+    /// Gets or sets the password
+    /// </summary>
+    public string Password
+    {
+      get { return this.Entity.Password; }
+      set
+      {
+        if (this.Entity.Password != value)
+        {
+          this.Entity.Password = value;
+          this.NotifyPropertyChanged(() => Password);
+
+          this.InquiryCommand.RequeryCanExecute();
+        }
+      }
+    }
+
+    #endregion
+
+    #region · Constructors ·
+
+    /// <summary>
+    /// Initializes a new instance of the <see cref="LoginViewModel"/> class
+    /// </summary>
+    public LoginViewModel()
+      : base()
+    {
+    }
+
+    #endregion
+
+    #region · Overriden Methods ·
+
+    public override bool CanClose()
+    {
+      return (this.ViewMode != ViewModeType.Busy);
+    }
+
+    public override void Close()
+    {
+      this.GetService<IVirtualDesktopManager>().CloseDialog();
+      Application.Current.Shutdown();
+    }
+
+    protected override void InitializePropertyStates()
+    {
+      this.PropertyStates.Add(e => e.UserId);
+      this.PropertyStates.Add(e => e.Password);
+    }
+
+    protected override void OnViewModeChanged()
+    {
+      base.OnViewModeChanged();
+
+      if (this.PropertyStates.Count > 0)
+      {
+        this.PropertyStates[x => x.UserId].IsEditable = (this.ViewMode != ViewModeType.Busy);
+        this.PropertyStates[x => x.Password].IsEditable = (this.ViewMode != ViewModeType.Busy);
+      }
+    }
+
+    #endregion
+
+    #region · Command Actions ·
+
+    protected override bool CanInquiryData()
+    {
+      return (!String.IsNullOrEmpty(this.UserId) &&
+              !String.IsNullOrEmpty(this.Password) &&
+              this.ViewMode != ViewModeType.Busy);
+    }
+
+    protected override void OnInquiryAction(InquiryActionResult<UserLogin> result)
+    {
+      result.Data = this.Entity;
+      result.Result = InquiryActionResultType.DataFetched;
+    }
+
+    protected override void OnInquiryActionComplete(InquiryActionResult<UserLogin> result)
+    {
+      if (result.Result == InquiryActionResultType.DataFetched)
+      {
+        Channel<AuthenticationInfo>.Public.OnNext(
+            new AuthenticationInfo
+            {
+              Action = AuthenticationAction.LoggedIn,
+              UserId = this.UserId
+            }, true);
+
+        ServiceLocator.GetService<IVirtualDesktopManager>().CloseDialog();
+      }
+      else if (result.Result == InquiryActionResultType.DataNotFound)
+      {
+        this.NotificationMessage = "Username and password do not match.";
+
+        this.ViewMode = ViewModeType.Default;
+      }
+    }
+
+    #endregion
+  }
+}