fix QA issues

src/Snap.Hutao/Snap.Hutao/Core/Graphics/RectInt32Convert.cs

@@ -3,6 +3,7 @@
 
 using Snap.Hutao.Win32.Foundation;
 using System.Numerics;
+using Windows.Foundation;
 using Windows.Graphics;
 
 namespace Snap.Hutao.Core.Graphics;
@@ -14,6 +15,11 @@ internal static class RectInt32Convert
         return new(rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top);
     }
 
+    public static RectInt32 RectInt32(Point position, Vector2 size)
+    {
+        return new((int)position.X, (int)position.Y, (int)size.X, (int)size.Y);
+    }
+
     public static RectInt32 RectInt32(int x, int y, Vector2 size)
     {
         return new(x, y, (int)size.X, (int)size.Y);

src/Snap.Hutao/Snap.Hutao/Service/User/UserInitializationService.cs

@@ -27,6 +27,8 @@ internal sealed partial class UserInitializationService : IUserInitializationSer
         if (!await InitializeUserAsync(user, token).ConfigureAwait(false))
         {
             user.UserInfo = new() { Nickname = SH.ModelBindingUserInitializationFailed };
+
+            await taskContext.SwitchToMainThreadAsync();
             user.UserGameRoles = [];
         }
 

src/Snap.Hutao/Snap.Hutao/UI/Windowing/XamlWindowController.cs

@@ -22,7 +22,9 @@ using Snap.Hutao.UI.Xaml.Media.Backdrop;
 using Snap.Hutao.Win32.Foundation;
 using Snap.Hutao.Win32.Graphics.Dwm;
 using Snap.Hutao.Win32.UI.WindowsAndMessaging;
+using System.Diagnostics;
 using System.IO;
+using Windows.Foundation;
 using Windows.Graphics;
 using Windows.UI;
 using static Snap.Hutao.Win32.DwmApi;
@@ -106,17 +108,17 @@ internal sealed class XamlWindowController
 
         if (XamlApplicationLifetime.LaunchedWithNotifyIcon && !XamlApplicationLifetime.Exiting)
         {
-            if (!IsNotifyIconVisible())
-            {
-                new AppNotificationBuilder()
-                    .AddText(SH.CoreWindowingNotifyIconPromotedHint)
-                    .Show();
-            }
-
             ICurrentXamlWindowReference currentXamlWindowReference = serviceProvider.GetRequiredService<ICurrentXamlWindowReference>();
             if (currentXamlWindowReference.Window == window)
             {
                 currentXamlWindowReference.Window = default!;
+
+                if (!IsNotifyIconVisible())
+                {
+                    new AppNotificationBuilder()
+                        .AddText(SH.CoreWindowingNotifyIconPromotedHint)
+                        .Show();
+                }
             }
 
             GC.Collect(GC.MaxGeneration);
@@ -150,7 +152,7 @@ internal sealed class XamlWindowController
 
         RECT iconRect = serviceProvider.GetRequiredService<NotifyIconController>().GetRect();
 
-        if (UniversalApiContract.IsPresent(WindowsVersion.Windows11))
+        if (Core.UniversalApiContract.IsPresent(WindowsVersion.Windows11))
         {
             RECT primaryRect = DisplayArea.Primary.OuterBounds.ToRECT();
             return IntersectRect(out _, in primaryRect, in iconRect);
@@ -331,8 +333,13 @@ internal sealed class XamlWindowController
             return;
         }
 
-        RectInt32 dragRect = RectInt32Convert.RectInt32(0, 0, xamlWindow.TitleBarAccess.ActualSize).Scale(window.GetRasterizationScale());
-        window.GetInputNonClientPointerSource().SetRegionRects(NonClientRegionKind.Caption, [dragRect]);
+        // E_UNEXPECTED will be thrown if the Content is not loaded.
+        if (xamlWindow.TitleBarAccess.IsLoaded)
+        {
+            Point position = xamlWindow.TitleBarAccess.TransformToVisual(window.Content).TransformPoint(default);
+            RectInt32 dragRect = RectInt32Convert.RectInt32(position, xamlWindow.TitleBarAccess.ActualSize).Scale(window.GetRasterizationScale());
+            window.GetInputNonClientPointerSource().SetRegionRects(NonClientRegionKind.Caption, [dragRect]);
+        }
     }
     #endregion
 }

src/Snap.Hutao/Snap.Hutao/UI/Xaml/View/Page/FeedbackPage.xaml

@@ -50,7 +50,7 @@
             PanePlacement="Right">
             <SplitView.Pane>
                 <ScrollViewer>
-                    <StackPanel Margin="16" Spacing="3">
+                    <StackPanel Margin="16" Spacing="16">
                         <Border cw:Effects.Shadow="{ThemeResource CompatCardShadow}">
                             <Border Style="{ThemeResource AcrylicBorderCardStyle}">
                                 <cwcont:SettingsExpander

src/Snap.Hutao/Snap.Hutao/UI/Xaml/View/Window/WebView2/WebView2Window.xaml

@@ -12,7 +12,7 @@
             <RowDefinition Height="44"/>
             <RowDefinition/>
         </Grid.RowDefinitions>
-        <Grid x:Name="TitleArea">
+        <Grid>
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="auto"/>
                 <ColumnDefinition Width="auto"/>
@@ -21,22 +21,28 @@
             <Button
                 x:Name="GoBackButton"
                 Grid.Column="0"
-                MinWidth="42"
+                Height="44"
+                MinWidth="44"
                 Command="{x:Bind GoBackCommand}"
                 FontSize="12"
                 Style="{StaticResource NavigationBackButtonSmallStyle}"/>
             <Button
                 Grid.Column="1"
-                MinWidth="42"
+                Height="44"
+                MinWidth="44"
                 Command="{x:Bind RefreshCommand}"
                 Content="&#xE72C;"
                 FontSize="12"
                 Style="{StaticResource NavigationBackButtonSmallStyle}"/>
-            <TextBlock
-                x:Name="DocumentTitle"
+            <Grid
+                x:Name="TitleArea"
                 Grid.Column="2"
-                Margin="12,0,0,0"
-                VerticalAlignment="Center"/>
+                IsHitTestVisible="False">
+                <TextBlock
+                    x:Name="DocumentTitle"
+                    Margin="12,0,0,0"
+                    VerticalAlignment="Center"/>
+            </Grid>
         </Grid>
         <WebView2
             x:Name="WebView"

src/Snap.Hutao/Snap.Hutao/ViewModel/Abstraction/IViewModel.cs

@@ -13,7 +13,7 @@ internal interface IViewModel : IPageScoped, IResurrectable
 
     SemaphoreSlim DisposeLock { get; set; }
 
-    IDeferContentLoader DeferContentLoader { get; set; }
+    IDeferContentLoader? DeferContentLoader { get; set; }
 
     bool IsViewDisposed { get; set; }
 

src/Snap.Hutao/Snap.Hutao/ViewModel/Abstraction/ViewModel.cs

@@ -23,7 +23,7 @@ internal abstract partial class ViewModel : ObservableObject, IViewModel
 
     public SemaphoreSlim DisposeLock { get; set; } = new(1);
 
-    public IDeferContentLoader DeferContentLoader { get; set; } = default!;
+    public IDeferContentLoader? DeferContentLoader { get; set; }
 
     public bool IsViewDisposed { get; set; }
 
@@ -39,7 +39,7 @@ internal abstract partial class ViewModel : ObservableObject, IViewModel
     {
         UninitializeOverride();
         IsViewDisposed = true;
-        DeferContentLoader = default!;
+        DeferContentLoader = default;
     }
 
     [Command("LoadCommand")]

src/Snap.Hutao/Snap.Hutao/ViewModel/Home/AnnouncementViewModel.cs

@@ -67,7 +67,7 @@ internal sealed partial class AnnouncementViewModel : Abstraction.ViewModel
             AnnouncementWrapper announcementWrapper = await announcementService.GetAnnouncementWrapperAsync(cultureOptions.LanguageCode, appOptions.Region, CancellationToken).ConfigureAwait(false);
             await taskContext.SwitchToMainThreadAsync();
             Announcement = announcementWrapper;
-            DeferContentLoader.Load("GameAnnouncementPivot");
+            DeferContentLoader?.Load("GameAnnouncementPivot");
         }
         catch (OperationCanceledException)
         {
@@ -81,7 +81,7 @@ internal sealed partial class AnnouncementViewModel : Abstraction.ViewModel
             ObservableCollection<Web.Hutao.HutaoAsAService.Announcement> hutaoAnnouncements = await hutaoAsAService.GetHutaoAnnouncementCollectionAsync().ConfigureAwait(false);
             await taskContext.SwitchToMainThreadAsync();
             HutaoAnnouncements = hutaoAnnouncements;
-            DeferContentLoader.Load("HutaoAnnouncementControl");
+            DeferContentLoader?.Load("HutaoAnnouncementControl");
         }
         catch (OperationCanceledException)
         {