Settings refactoring.

Wino.Mail.ViewModels/MessageListPageViewModel.cs

@@ -1,8 +1,10 @@
 using System;
 using System.Collections.Generic;
+using System.ComponentModel;
 using System.Threading.Tasks;
 using CommunityToolkit.Mvvm.Input;
 using Wino.Core.Domain;
+using Wino.Core.Domain.Entities.Shared;
 using Wino.Core.Domain.Enums;
 using Wino.Core.Domain.Interfaces;
 
@@ -40,6 +42,10 @@ public partial class MessageListPageViewModel : MailBaseViewModel
         Translator.HoverActionOption_MoveJunk
     ];
 
+    public IMailItemDisplayInformation DemoPreviewMailItemInformation { get; } = new DemoMailItemDisplayInformation();
+
+    public MailListDisplayMode SelectedMailSpacingMode => availableMailSpacingOptions[selectedMailSpacingIndex];
+
     private int selectedMarkAsOptionIndex;
     public int SelectedMarkAsOptionIndex
     {
@@ -62,6 +68,7 @@ public partial class MessageListPageViewModel : MailBaseViewModel
             if (SetProperty(ref selectedMailSpacingIndex, value) && value >= 0 && value < availableMailSpacingOptions.Count)
             {
                 PreferencesService.MailItemDisplayMode = availableMailSpacingOptions[value];
+                OnPropertyChanged(nameof(SelectedMailSpacingMode));
             }
         }
     }
@@ -135,4 +142,32 @@ public partial class MessageListPageViewModel : MailBaseViewModel
         _statePersistenceService.MailListPaneLength = 420;
         _dialogService.InfoBarMessage(Translator.GeneralTitle_Info, Translator.Info_MailListSizeResetSuccessMessage, InfoBarMessageType.Success);
     }
+
+    private sealed class DemoMailItemDisplayInformation : IMailItemDisplayInformation
+    {
+        public event PropertyChangedEventHandler PropertyChanged
+        {
+            add { }
+            remove { }
+        }
+
+        public string Subject => "Quarterly planning notes";
+        public string FromName => "Ava Brooks";
+        public string FromAddress => "ava@contoso.com";
+        public string PreviewText => "Agenda draft, attendee updates, and a few follow-up items for this week.";
+        public bool IsRead => false;
+        public bool IsDraft => false;
+        public bool HasAttachments => true;
+        public bool IsCalendarEvent => false;
+        public bool IsFlagged => true;
+        public DateTime CreationDate => DateTime.Now.AddMinutes(-12);
+        public Guid? ContactPictureFileId => null;
+        public bool ThumbnailUpdatedEvent => false;
+        public bool IsThreadExpanded => false;
+        public AccountContact SenderContact => new()
+        {
+            Address = "ava@contoso.com",
+            Name = "Ava Brooks"
+        };
+    }
 }