Main app aot compatibility.

Wino.Mail.WinUI/Views/ComposePage.xaml.cs

@@ -41,7 +41,7 @@ public sealed partial class ComposePage : ComposePageAbstract,
         InitializeComponent();
     }
 
-    private async void GlobalFocusManagerGotFocus(object sender, FocusManagerGotFocusEventArgs e)
+    private async void GlobalFocusManagerGotFocus(object? sender, FocusManagerGotFocusEventArgs e)
     {
         // In order to delegate cursor to the inner editor for WebView2.
         // When the control got focus, we invoke script to focus the editor.
@@ -60,7 +60,7 @@ public sealed partial class ComposePage : ComposePageAbstract,
             x => box.TextChanged += x,
             x => box.TextChanged -= x)
                 .Throttle(TimeSpan.FromMilliseconds(120))
-                .ObserveOn(SynchronizationContext.Current)
+                .ObserveOn(SynchronizationContext.Current!)
                 .Subscribe(t =>
                 {
                     if (t.EventArgs.Reason == AutoSuggestionBoxTextChangeReason.UserInput)
@@ -305,10 +305,15 @@ public sealed partial class ComposePage : ComposePageAbstract,
         ImportanceFlyout.Hide();
         ImportanceSplitButton.IsChecked = true;
 
-        if (sender is Button senderButton)
+        if (sender is Button senderButton && senderButton.Tag is MessageImportance importance)
         {
-            ViewModel.SelectedMessageImportance = (MessageImportance)senderButton.Tag;
-            ((ImportanceSplitButton.Content as Viewbox).Child as SymbolIcon).Symbol = (senderButton.Content as SymbolIcon).Symbol;
+            ViewModel.SelectedMessageImportance = importance;
+            if (ImportanceSplitButton.Content is Viewbox viewbox && 
+                viewbox.Child is SymbolIcon symbolIcon && 
+                senderButton.Content is SymbolIcon contentIcon)
+            {
+                symbolIcon.Symbol = contentIcon.Symbol;
+            }
         }
     }
 
@@ -332,7 +337,7 @@ public sealed partial class ComposePage : ComposePageAbstract,
                     _ => null
                 };
 
-                AccountContact addedItem = null;
+                AccountContact? addedItem = null;
 
                 if (addressCollection != null)
                     addedItem = await ViewModel.GetAddressInformationAsync(currentText, addressCollection);

Wino.Mail.WinUI/Views/ImapSetup/AdvancedImapSetupPage.xaml.cs

@@ -200,15 +200,15 @@ public sealed partial class AdvancedImapSetupPage : Page
             IncomingServerPassword = PasswordBox.Password,
             IncomingServerType = Core.Domain.Enums.CustomIncomingServerType.IMAP4,
             IncomingServerUsername = UsernameBox.Text,
-            IncomingAuthenticationMethod = (IncomingAuthenticationMethod.SelectedItem as ImapAuthenticationMethodModel).ImapAuthenticationMethod,
-            IncomingServerSocketOption = (IncomingConnectionSecurity.SelectedItem as ImapConnectionSecurityModel).ImapConnectionSecurity,
+            IncomingAuthenticationMethod = (IncomingAuthenticationMethod.SelectedItem as ImapAuthenticationMethodModel)!.ImapAuthenticationMethod,
+            IncomingServerSocketOption = (IncomingConnectionSecurity.SelectedItem as ImapConnectionSecurityModel)!.ImapConnectionSecurity,
             IncomingServerPort = IncomingServerPortBox.Text,
 
             OutgoingServer = GetServerWithoutPort(OutgoingServerBox.Text),
             OutgoingServerPort = OutgoingServerPort.Text,
             OutgoingServerPassword = OutgoingPasswordBox.Password,
-            OutgoingAuthenticationMethod = (OutgoingAuthenticationMethod.SelectedItem as ImapAuthenticationMethodModel).ImapAuthenticationMethod,
-            OutgoingServerSocketOption = (OutgoingConnectionSecurity.SelectedItem as ImapConnectionSecurityModel).ImapConnectionSecurity,
+            OutgoingAuthenticationMethod = (OutgoingAuthenticationMethod.SelectedItem as ImapAuthenticationMethodModel)!.ImapAuthenticationMethod,
+            OutgoingServerSocketOption = (OutgoingConnectionSecurity.SelectedItem as ImapConnectionSecurityModel)!.ImapConnectionSecurity,
             OutgoingServerUsername = OutgoingUsernameBox.Text,
 
             ProxyServer = ProxyServerBox.Text,

Wino.Mail.WinUI/Views/ImapSetup/ImapConnectionFailedPage.xaml.cs

@@ -13,10 +13,10 @@ namespace Wino.Views.ImapSetup;
 
 public sealed partial class ImapConnectionFailedPage : Page
 {
-    private string _protocolLog;
+    private string? _protocolLog;
 
-    private readonly IClipboardService _clipboardService = App.Current.Services.GetService<IClipboardService>();
-    private readonly IMailDialogService _dialogService = App.Current.Services.GetService<IMailDialogService>();
+    private readonly IClipboardService _clipboardService = App.Current.Services.GetService<IClipboardService>()!;
+    private readonly IMailDialogService _dialogService = App.Current.Services.GetService<IMailDialogService>()!;
 
     public ImapConnectionFailedPage()
     {

Wino.Mail.WinUI/Views/ImapSetup/TestingImapConnectionPage.xaml.cs

@@ -15,8 +15,8 @@ namespace Wino.Views.ImapSetup;
 
 public sealed partial class TestingImapConnectionPage : Page
 {
-    private AutoDiscoverySettings autoDiscoverySettings;
-    private CustomServerInformation serverInformationToTest;
+    private AutoDiscoverySettings autoDiscoverySettings = null!;
+    private CustomServerInformation serverInformationToTest = null!;
 
     public TestingImapConnectionPage()
     {

Wino.Mail.WinUI/Views/ImapSetup/WelcomeImapSetupPage.xaml.cs

@@ -19,7 +19,7 @@ namespace Wino.Views.ImapSetup;
 
 public sealed partial class WelcomeImapSetupPage : Page
 {
-    private readonly IAutoDiscoveryService _autoDiscoveryService = App.Current.Services.GetService<IAutoDiscoveryService>();
+    private readonly IAutoDiscoveryService _autoDiscoveryService = App.Current.Services.GetService<IAutoDiscoveryService>()!;
 
     public WelcomeImapSetupPage()
     {

Wino.Mail.WinUI/Views/MailListPage.xaml

@@ -184,14 +184,9 @@
                 LostFocus="SearchBarUnfocused"
                 PlaceholderText="{x:Bind domain:Translator.SearchBarPlaceholder}"
                 QueryIcon="Find"
+                QuerySubmitted="SearchbarQuerySubmitted"
                 Text="{x:Bind ViewModel.SearchQuery, Mode=TwoWay}"
-                TextChanged="SearchBar_TextChanged">
-                <i:Interaction.Behaviors>
-                    <i:EventTriggerBehavior EventName="QuerySubmitted">
-                        <i:InvokeCommandAction Command="{x:Bind ViewModel.PerformSearchCommand}" />
-                    </i:EventTriggerBehavior>
-                </i:Interaction.Behaviors>
-            </AutoSuggestBox>
+                TextChanged="SearchBar_TextChanged" />
         </Grid>
     </wino:BasePage.ShellContent>
 

Wino.Mail.WinUI/Views/MailListPage.xaml.cs

@@ -188,7 +188,7 @@ public sealed partial class MailListPage : MailListPageAbstract,
             targetItems = ViewModel.MailCollection.SelectedItems;
             var availableActions = ViewModel.GetAvailableMailActions(targetItems);
 
-            if (!availableActions?.Any() ?? false) return;
+            if (availableActions == null || !availableActions.Any()) return;
 
             var clickedOperation = await GetMailOperationFromFlyoutAsync(availableActions, control, p.X, p.Y);
 
@@ -738,4 +738,10 @@ public sealed partial class MailListPage : MailListPageAbstract,
 
         await WinoClickItemInternalAsync(e.ClickedItem);
     }
+
+    private void SearchbarQuerySubmitted(AutoSuggestBox sender, AutoSuggestBoxQuerySubmittedEventArgs args)
+    {
+        if (ViewModel.PerformSearchCommand.CanExecute(null))
+            ViewModel.PerformSearchCommand.Execute(null);
+    }
 }

Wino.Mail.WinUI/Views/MailRenderingPage.xaml.cs

@@ -28,8 +28,8 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
     IRecipient<CancelRenderingContentRequested>,
     IRecipient<ApplicationThemeChanged>
 {
-    private readonly IPreferencesService _preferencesService = App.Current.Services.GetService<IPreferencesService>();
-    private readonly IMailDialogService _dialogService = App.Current.Services.GetService<IMailDialogService>();
+    private readonly IPreferencesService _preferencesService = App.Current.Services.GetService<IPreferencesService>()!;
+    private readonly IMailDialogService _dialogService = App.Current.Services.GetService<IMailDialogService>()!;
 
     private bool isRenderingInProgress = false;
     private TaskCompletionSource<bool> DOMLoadedTask = new TaskCompletionSource<bool>();
@@ -232,7 +232,7 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
         // TODO: Check external link navigation setting is enabled.
         // Open all external urls in launcher.
 
-        if (args.Cancel && Uri.TryCreate(args.Uri, UriKind.Absolute, out Uri newUri))
+        if (args.Cancel && Uri.TryCreate(args.Uri, UriKind.Absolute, out Uri? newUri) && newUri != null)
         {
             await Launcher.LaunchUriAsync(newUri);
         }
@@ -242,7 +242,7 @@ public sealed partial class MailRenderingPage : MailRenderingPageAbstract,
     {
         if (e.ClickedItem is MailAttachmentViewModel attachmentViewModel)
         {
-            ViewModel.OpenAttachmentCommand.Execute(attachmentViewModel);
+            ViewModel?.OpenAttachmentCommand.Execute(attachmentViewModel);
         }
     }