Mercurial > silverbladetech

annotate Chronosv2/source/ViewModel/LoginViewModel.cs @ 10:443821e55f06

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author stevenh7776 stevenhollidge@hotmail.com
date Tue, 21 Feb 2012 17:25:44 +0700
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10
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1 using System;
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2 using System.Windows;
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3 using Chronos.Authentication;
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4 using Chronos.Model;
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5 using Chronos.Presentation.Core.VirtualDesktops;
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6 using Chronos.Presentation.Core.Windows;
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7 using Chronos.Presentation.ViewModel;
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8 using nRoute.Components.Messaging;
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9 using nRoute.Services;
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10
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11 namespace Chronos.ViewModel
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12 {
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13 /// <summary>
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14 /// Login view view model class
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15 /// </summary>
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16 public sealed class LoginViewModel
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17 : WindowViewModel<UserLogin>
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18 {
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19 #region · Data Properties ·
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20
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21 /// <summary>
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22 /// Gets or sets the user name
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23 /// </summary>
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24 public string UserId
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25 {
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26 get { return this.Entity.UserId; }
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27 set
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28 {
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29 if (this.Entity.UserId != value)
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30 {
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31 this.Entity.UserId = value;
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32 this.NotifyPropertyChanged(() => UserId);
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33
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34 this.InquiryCommand.RequeryCanExecute();
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35 }
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36 }
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37 }
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38
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39 /// <summary>
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40 /// Gets or sets the password
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41 /// </summary>
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42 public string Password
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43 {
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44 get { return this.Entity.Password; }
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45 set
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46 {
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47 if (this.Entity.Password != value)
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48 {
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49 this.Entity.Password = value;
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50 this.NotifyPropertyChanged(() => Password);
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51
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52 this.InquiryCommand.RequeryCanExecute();
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53 }
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54 }
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55 }
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56
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57 #endregion
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58
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59 #region · Constructors ·
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60
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61 /// <summary>
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62 /// Initializes a new instance of the <see cref="LoginViewModel"/> class
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63 /// </summary>
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64 public LoginViewModel()
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65 : base()
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66 {
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67 }
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68
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69 #endregion
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70
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71 #region · Overriden Methods ·
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72
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73 public override bool CanClose()
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74 {
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75 return (this.ViewMode != ViewModeType.Busy);
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76 }
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77
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78 public override void Close()
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79 {
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80 this.GetService<IVirtualDesktopManager>().CloseDialog();
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81 Application.Current.Shutdown();
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82 }
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83
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84 protected override void InitializePropertyStates()
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85 {
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86 this.PropertyStates.Add(e => e.UserId);
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87 this.PropertyStates.Add(e => e.Password);
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88 }
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89
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90 protected override void OnViewModeChanged()
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91 {
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92 base.OnViewModeChanged();
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93
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94 if (this.PropertyStates.Count > 0)
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95 {
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96 this.PropertyStates[x => x.UserId].IsEditable = (this.ViewMode != ViewModeType.Busy);
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97 this.PropertyStates[x => x.Password].IsEditable = (this.ViewMode != ViewModeType.Busy);
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98 }
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99 }
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100
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101 #endregion
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102
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103 #region · Command Actions ·
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104
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105 protected override bool CanInquiryData()
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106 {
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107 return (!String.IsNullOrEmpty(this.UserId) &&
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108 !String.IsNullOrEmpty(this.Password) &&
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109 this.ViewMode != ViewModeType.Busy);
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110 }
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111
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112 protected override void OnInquiryAction(InquiryActionResult<UserLogin> result)
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113 {
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114 result.Data = this.Entity;
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115 result.Result = InquiryActionResultType.DataFetched;
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116 }
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117
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118 protected override void OnInquiryActionComplete(InquiryActionResult<UserLogin> result)
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119 {
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120 if (result.Result == InquiryActionResultType.DataFetched)
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121 {
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122 Channel<AuthenticationInfo>.Public.OnNext(
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123 new AuthenticationInfo
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124 {
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125 Action = AuthenticationAction.LoggedIn,
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126 UserId = this.UserId
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127 }, true);
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128
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129 ServiceLocator.GetService<IVirtualDesktopManager>().CloseDialog();
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130 }
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131 else if (result.Result == InquiryActionResultType.DataNotFound)
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132 {
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133 this.NotificationMessage = "Username and password do not match.";
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134
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135 this.ViewMode = ViewModeType.Default;
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136 }
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137 }
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138
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139 #endregion
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140 }
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141 }