Initial commit.

Wino.Mail.ViewModels/Messages/ActiveMailItemChangedEvent.cs

@@ -0,0 +1,20 @@
+using System;
+using Wino.Core.MenuItems;
+using Wino.Mail.ViewModels.Data;
+
+namespace Wino.Mail.ViewModels.Messages
+{
+    /// <summary>
+    /// When active mail item in the reader is updated.
+    /// </summary>
+    public class ActiveMailItemChangedEvent
+    {
+        public ActiveMailItemChangedEvent(MailItemViewModel selectedMailItemViewModel)
+        {
+            // SelectedMailItemViewModel can be null.
+            SelectedMailItemViewModel = selectedMailItemViewModel;
+        }
+
+        public MailItemViewModel SelectedMailItemViewModel { get; set; }
+    }
+}