修复断网自动退出及登录流程问题

src/App/App.csproj

@@ -543,6 +543,7 @@
     <Content Include="Assets\Logo\Wide310x150Logo.scale-150.png" />
     <Content Include="Assets\Logo\Wide310x150Logo.scale-200.png" />
     <Content Include="Assets\Logo\Wide310x150Logo.scale-400.png" />
+    <Content Include="Assets\not_login.png" />
     <Content Include="Assets\Null_rgba.png" />
     <Content Include="Assets\Original_rgba_80.png" />
     <Content Include="Assets\Rookie_rgba_80.png" />

src/App/Controls/App/CommonImageEx/CommonImageEx.cs

@@ -29,6 +29,12 @@ public sealed class CommonImageEx : Control
         public static readonly DependencyProperty DecodePixelWidthProperty =
             DependencyProperty.Register(nameof(DecodePixelWidth), typeof(double), typeof(CommonImageEx), new PropertyMetadata(-1));
 
+        /// <summary>
+        /// <see cref="PlaceholderSource"/>的依赖属性.
+        /// </summary>
+        public static readonly DependencyProperty PlaceholderSourceProperty =
+            DependencyProperty.Register(nameof(PlaceholderSource), typeof(ImageSource), typeof(CommonImageEx), new PropertyMetadata(default));
+
         /// <summary>
         /// Initializes a new instance of the <see cref="CommonImageEx"/> class.
         /// </summary>
@@ -63,5 +69,14 @@ public int DecodePixelWidth
             get { return (int)GetValue(DecodePixelWidthProperty); }
             set { SetValue(DecodePixelWidthProperty, value); }
         }
+
+        /// <summary>
+        /// 占位符图片.
+        /// </summary>
+        public ImageSource PlaceholderSource
+        {
+            get { return (ImageSource)GetValue(PlaceholderSourceProperty); }
+            set { SetValue(PlaceholderSourceProperty, value); }
+        }
     }
 }

src/App/Controls/App/CommonImageEx/CommonImageEx.xaml

@@ -6,6 +6,7 @@
     xmlns:local="using:Richasy.Bili.App.Controls"
     xmlns:muxc="using:Microsoft.UI.Xaml.Controls">
     <Style TargetType="local:CommonImageEx">
+        <Setter Property="PlaceholderSource" Value="/Assets/img_holder_rect.png" />
         <Setter Property="Template">
             <Setter.Value>
                 <ControlTemplate TargetType="local:CommonImageEx">
@@ -14,7 +15,7 @@
                         CornerRadius="{TemplateBinding CornerRadius}"
                         DecodePixelWidth="{TemplateBinding DecodePixelWidth}"
                         EnableLazyLoading="True"
-                        PlaceholderSource="/Assets/img_holder_rect.png"
+                        PlaceholderSource="{TemplateBinding PlaceholderSource}"
                         PlaceholderStretch="Uniform"
                         Source="{TemplateBinding ImageUrl}"
                         Stretch="{TemplateBinding Stretch}" />

src/App/Controls/User/UserAvatar.xaml

@@ -32,6 +32,7 @@
             CornerRadius="25"
             DecodePixelWidth="{x:Bind DecodeSize, Mode=OneWay}"
             ImageUrl="{x:Bind Avatar, Mode=OneWay}"
+            PlaceholderSource="/Assets/not_login.png"
             ToolTipService.ToolTip="{x:Bind UserName, Mode=OneWay}" />
     </Button>
 </UserControl>

src/Controller/Controller.Uwp/BiliController.Auth.cs

@@ -35,7 +35,7 @@ public async Task<bool> TrySignInAsync(bool isSlientOnly = false)
                 }
                 else
                 {
-                    LoggedFailed?.Invoke(this, new Exception());
+                    LoggedFailed?.Invoke(this, new OperationCanceledException());
                     return false;
                 }
             }
@@ -53,15 +53,16 @@ public async Task<bool> TrySignInAsync(bool isSlientOnly = false)
         /// <returns><see cref="Task"/>.</returns>
         public async Task SignOutAsync()
         {
-            this._isRequestLogout = true;
+            _isRequestLogout = true;
             await _authorizeProvider.SignOutAsync();
         }
 
         private void OnAuthenticationStateChanged(object sender, AuthorizeStateChangedEventArgs e)
         {
             if (e.NewState == AuthorizeState.SignedOut && !_isRequestLogout)
             {
-                LoggedFailed?.Invoke(this, new Exception("请求失败"));
+                LoggedFailed?.Invoke(this, new OperationCanceledException("请求失败"));
+                return;
             }
 
             switch (e.NewState)
@@ -71,7 +72,7 @@ private void OnAuthenticationStateChanged(object sender, AuthorizeStateChangedEv
                     break;
                 case AuthorizeState.SignedOut:
                     LoggedOut?.Invoke(this, EventArgs.Empty);
-                    this._isRequestLogout = false;
+                    _isRequestLogout = false;
                     break;
                 default:
                     break;

src/Lib/Lib.Uwp/AuthorizeProvider/AccountLoginDialog.xaml.cs

@@ -192,6 +192,7 @@ private async Task SwitchLoginTypeAsync(LoginType type)
                     PrimaryButtonText = string.Empty;
                     TipBlock.Text = resourceToolkit.GetLocaleString(LanguageNames.QRLoginTip);
                     SwitchActionButton.Content = resourceToolkit.GetLocaleString(LanguageNames.SwitchToPasswordLogin);
+                    IsShowWebView = false;
                     await LoadQRCodeAsync();
                     break;
                 default:

src/Lib/Lib.Uwp/HttpProvider/HttpProvider.Extension.cs

@@ -51,6 +51,7 @@ await Task.Run(async () =>
                         {
                             Code = 408,
                             Message = ServiceConstants.Messages.RequestTimedOut,
+                            IsHttpError = true,
                         },
                         exception);
             }
@@ -64,6 +65,7 @@ await Task.Run(async () =>
                         new ServerResponse
                         {
                             Message = ServiceConstants.Messages.UnexpectedExceptionOnSend,
+                            IsHttpError = true,
                         },
                         exception);
             }
@@ -155,13 +157,18 @@ private async Task ThrowIfHasExceptionAsync(HttpResponseMessage response)
             {
                 if (response != null && response.StatusCode == HttpStatusCode.NotFound)
                 {
-                    errorResponse = new ServerResponse { Message = ServiceConstants.Messages.NotFound };
+                    errorResponse = new ServerResponse
+                    {
+                        Message = ServiceConstants.Messages.NotFound,
+                        IsHttpError = true,
+                    };
                 }
                 else
                 {
                     errorResponse = new ServerResponse
                     {
                         Message = ServiceConstants.Messages.UnexpectedExceptionResponse,
+                        IsHttpError = true,
                     };
                 }
             }

src/Models/Models.BiliBili/Others/ServerResponse.cs

@@ -28,6 +28,11 @@ public class ServerResponse
         [JsonProperty(NullValueHandling = NullValueHandling.Ignore, PropertyName = "ttl", Required = Required.Default)]
         public int TTL { get; set; }
 
+        /// <summary>
+        /// 是否为网络请求错误，而非服务器传回的错误.
+        /// </summary>
+        public bool IsHttpError { get; set; }
+
         /// <summary>
         /// 响应结果是否为成功.
         /// </summary>

src/ViewModels/ViewModels.Uwp/Account/AccountViewModel/AccountViewModel.cs

@@ -10,6 +10,7 @@
 using Richasy.Bili.Locator.Uwp;
 using Richasy.Bili.Models.App;
 using Richasy.Bili.Models.App.Constants;
+using Richasy.Bili.Models.App.Other;
 using Richasy.Bili.Models.BiliBili;
 using Richasy.Bili.Models.Enums;
 
@@ -171,7 +172,11 @@ private async void OnLoggedFailedAsync(object sender, Exception e)
             {
                 Reset();
                 Status = AccountViewModelStatus.Logout;
-                await _controller.SignOutAsync();
+
+                if (e is ServiceException serviceEx && (!serviceEx.Error?.IsHttpError ?? true))
+                {
+                    await _controller.SignOutAsync();
+                }
             }
         }
 

src/ViewModels/ViewModels.Uwp/Account/DynamicModuleViewModel/DynamicModuleViewModel.cs

@@ -88,7 +88,7 @@ public async Task InitializeRequestAsync()
 
         internal async Task DeltaRequestAsync()
         {
-            if (!IsDeltaLoading && !_isLoadCompleted)
+            if (!IsDeltaLoading && !_isLoadCompleted && AccountViewModel.Instance.Status == AccountViewModelStatus.Login)
             {
                 IsDeltaLoading = true;
                 await RequestAsync();