Fixed the display date of the calendar items. Created test project for core library, included tests for recurring calendar events.

Wino.Mail.WinUI/Views/Abstract/CalendarPageAbstract.cs

@@ -3,4 +3,10 @@ using Wino.Mail.WinUI;
 
 namespace Wino.Calendar.Views.Abstract;
 
-public abstract class CalendarPageAbstract : BasePage<CalendarPageViewModel> { }
+public abstract class CalendarPageAbstract : BasePage<CalendarPageViewModel>
+{
+    protected CalendarPageAbstract()
+    {
+        NavigationCacheMode = Microsoft.UI.Xaml.Navigation.NavigationCacheMode.Enabled;
+    }
+}

Wino.Mail.WinUI/Views/Calendar/CalendarAppShell.xaml

@@ -156,6 +156,7 @@
                     <calendarControls:WinoCalendarView
                         x:Name="CalendarView"
                         Grid.Row="0"
+                        Margin="0,12,0,0"
                         HorizontalAlignment="Center"
                         DateClickedCommand="{x:Bind ViewModel.DateClickedCommand}"
                         HighlightedDateRange="{x:Bind ViewModel.HighlightedDateRange, Mode=OneWay}"

Wino.Mail.WinUI/Views/Calendar/CalendarPage.xaml

@@ -18,9 +18,9 @@
 
     <Page.Resources>
         <CollectionViewSource
-            x:Key="GroupedCalendarEnumerableViewSource"
+            x:Name="GroupedCalendarEnumerableViewSource"
             IsSourceGrouped="True"
-            Source="{x:Bind ViewModel.AccountCalendarStateService.GroupedAccountCalendarsEnumerable, Mode=OneWay}" />
+            Source="{x:Bind ViewModel.AccountCalendarStateService.GroupedAccountCalendars, Mode=OneWay}" />
     </Page.Resources>
 
     <Border
@@ -124,7 +124,7 @@
                                         <ListView
                                             MaxHeight="300"
                                             HorizontalAlignment="Stretch"
-                                            ItemsSource="{Binding Source={StaticResource GroupedCalendarEnumerableViewSource}}"
+                                            ItemsSource="{x:Bind GroupedCalendarEnumerableViewSource.View, Mode=OneWay}"
                                             SelectedItem="{x:Bind ViewModel.SelectedQuickEventAccountCalendar, Mode=TwoWay}"
                                             SelectionChanged="QuickEventAccountSelectorSelectionChanged">
                                             <ListView.ItemTemplate>

Wino.Mail.WinUI/Views/Calendar/CalendarPage.xaml.cs

@@ -22,7 +22,6 @@ public sealed partial class CalendarPage : CalendarPageAbstract,
     public CalendarPage()
     {
         InitializeComponent();
-        NavigationCacheMode = NavigationCacheMode.Enabled;
 
         ViewModel.DetailsShowCalendarItemChanged += CalendarItemDetailContextChanged;
     }
@@ -40,6 +39,26 @@ public sealed partial class CalendarPage : CalendarPageAbstract,
         }
     }
 
+    protected override void RegisterRecipients()
+    {
+        base.RegisterRecipients();
+
+        WeakReferenceMessenger.Default.Register<ScrollToDateMessage>(this);
+        WeakReferenceMessenger.Default.Register<ScrollToHourMessage>(this);
+        WeakReferenceMessenger.Default.Register<GoNextDateRequestedMessage>(this);
+        WeakReferenceMessenger.Default.Register<GoPreviousDateRequestedMessage>(this);
+    }
+
+    protected override void UnregisterRecipients()
+    {
+        base.UnregisterRecipients();
+
+        WeakReferenceMessenger.Default.Unregister<ScrollToDateMessage>(this);
+        WeakReferenceMessenger.Default.Unregister<ScrollToHourMessage>(this);
+        WeakReferenceMessenger.Default.Unregister<GoNextDateRequestedMessage>(this);
+        WeakReferenceMessenger.Default.Unregister<GoPreviousDateRequestedMessage>(this);
+    }
+
     public void Receive(ScrollToHourMessage message) => CalendarControl.NavigateToHour(message.TimeSpan);
     public void Receive(ScrollToDateMessage message) => CalendarControl.NavigateToDay(message.Date);
     public void Receive(GoNextDateRequestedMessage message) => CalendarControl.GoNextRange();