Removed xaml converter for resolving mail subjects. (#497)

Wino.Core.UWP/Helpers/XamlHelpers.cs

@@ -71,7 +71,6 @@ namespace Wino.Helpers
                 return prefer24HourTime ? localTime.ToString(TwentyFourHourTimeFormat) : localTime.ToString(TwelveHourTimeFormat);
             }
         }
-        public static string GetMailItemSubject(string subject) => string.IsNullOrWhiteSpace(subject) ? $"({Translator.MailItemNoSubject})" : subject;
         public static string GetCreationDateString(DateTime date, bool prefer24HourTime)
         {
             var localTime = date.ToLocalTime();

Wino.Mail.ViewModels/MailRenderingPageViewModel.cs

@@ -22,7 +22,6 @@ using Wino.Core.Domain.Models.MailItem;
 using Wino.Core.Domain.Models.Menus;
 using Wino.Core.Domain.Models.Navigation;
 using Wino.Core.Domain.Models.Reader;
-using Wino.Core.Services;
 using Wino.Mail.ViewModels.Data;
 using Wino.Mail.ViewModels.Messages;
 using Wino.Messaging.Client.Mails;
@@ -429,7 +428,7 @@ namespace Wino.Mail.ViewModels
                 foreach (var item in bccAccountContacts)
                     BccItems.Add(item);
 
-                Subject = message.Subject;
+                Subject = string.IsNullOrWhiteSpace(message.Subject) ? Translator.MailItemNoSubject : message.Subject;
 
                 // TODO: FromName and FromAddress is probably not correct here for mail lists.
                 FromAddress = message.From.Mailboxes.FirstOrDefault()?.Address ?? Translator.UnknownAddress;

Wino.Mail/Controls/MailItemDisplayInformationControl.xaml

@@ -190,11 +190,11 @@
                                 <local:AnimatedIcon.RenderTransform />
                             </local:AnimatedIcon>
 
+                            <!--  Subject is bound in the code behind.  -->
                             <TextBlock
                                 x:Name="TitleText"
                                 Grid.Column="1"
                                 MaxLines="1"
-                                Text="{x:Bind helpers:XamlHelpers.GetMailItemSubject(MailItem.Subject)}"
                                 TextTrimming="CharacterEllipsis" />
 
                             <TextBlock

Wino.Mail/Controls/MailItemDisplayInformationControl.xaml.cs

@@ -3,6 +3,7 @@ using System.Numerics;
 using System.Windows.Input;
 using Windows.UI.Xaml;
 using Windows.UI.Xaml.Controls;
+using Wino.Core.Domain;
 using Wino.Core.Domain.Entities.Mail;
 using Wino.Core.Domain.Enums;
 using Wino.Core.Domain.Models.MailItem;
@@ -27,7 +28,7 @@ namespace Wino.Controls
         public static readonly DependencyProperty CenterHoverActionProperty = DependencyProperty.Register(nameof(CenterHoverAction), typeof(MailOperation), typeof(MailItemDisplayInformationControl), new PropertyMetadata(MailOperation.None));
         public static readonly DependencyProperty RightHoverActionProperty = DependencyProperty.Register(nameof(RightHoverAction), typeof(MailOperation), typeof(MailItemDisplayInformationControl), new PropertyMetadata(MailOperation.None));
         public static readonly DependencyProperty HoverActionExecutedCommandProperty = DependencyProperty.Register(nameof(HoverActionExecutedCommand), typeof(ICommand), typeof(MailItemDisplayInformationControl), new PropertyMetadata(null));
-        public static readonly DependencyProperty MailItemProperty = DependencyProperty.Register(nameof(MailItem), typeof(IMailItem), typeof(MailItemDisplayInformationControl), new PropertyMetadata(null));
+        public static readonly DependencyProperty MailItemProperty = DependencyProperty.Register(nameof(MailItem), typeof(IMailItem), typeof(MailItemDisplayInformationControl), new PropertyMetadata(null, new PropertyChangedCallback(OnMailItemChanged)));
         public static readonly DependencyProperty IsHoverActionsEnabledProperty = DependencyProperty.Register(nameof(IsHoverActionsEnabled), typeof(bool), typeof(MailItemDisplayInformationControl), new PropertyMetadata(true));
         public static readonly DependencyProperty Prefer24HourTimeFormatProperty = DependencyProperty.Register(nameof(Prefer24HourTimeFormat), typeof(bool), typeof(MailItemDisplayInformationControl), new PropertyMetadata(false));
         public static readonly DependencyProperty IsThreadExpanderVisibleProperty = DependencyProperty.Register(nameof(IsThreadExpanderVisible), typeof(bool), typeof(MailItemDisplayInformationControl), new PropertyMetadata(false));
@@ -141,6 +142,21 @@ namespace Wino.Controls
             RootContainerVisualWrapper.SizeChanged += (s, e) => leftBackgroundVisual.Size = e.NewSize.ToVector2();
         }
 
+        private static void OnMailItemChanged(DependencyObject obj, DependencyPropertyChangedEventArgs args)
+        {
+            if (obj is MailItemDisplayInformationControl control)
+            {
+                control.UpdateInformation();
+            }
+        }
+
+        private void UpdateInformation()
+        {
+            if (MailItem == null) return;
+
+            TitleText.Text = string.IsNullOrWhiteSpace(MailItem.Subject) ? Translator.MailItemNoSubject : MailItem.Subject;
+        }
+
         private void ControlPointerEntered(object sender, Windows.UI.Xaml.Input.PointerRoutedEventArgs e)
         {
             if (IsHoverActionsEnabled)

Wino.Mail/Views/MailRenderingPage.xaml

@@ -181,7 +181,7 @@
                         FontSize="18"
                         FontWeight="SemiBold"
                         IsTextSelectionEnabled="True"
-                        Text="{x:Bind helpers:XamlHelpers.GetMailItemSubject( ViewModel.Subject), Mode=OneWay}"
+                        Text="{x:Bind ViewModel.Subject, Mode=OneWay}"
                         TextWrapping="Wrap" />
 
                     <HyperlinkButton