feat: add VisualLayerManager ctor to Notification & Toast manager.

src/Ursa/Controls/Notification/WindowNotificationManager.cs

@@ -2,6 +2,7 @@ using Avalonia;
 using Avalonia.Controls;
 using Avalonia.Controls.Metadata;
 using Avalonia.Controls.Notifications;
+using Avalonia.Controls.Primitives;
 using Avalonia.Layout;
 using Avalonia.Threading;
 
@@ -37,6 +38,14 @@ public class WindowNotificationManager : WindowMessageManager, INotificationMana
         set => SetValue(PositionProperty, value);
     }
 
+    /// <summary>
+    /// Initializes a new instance of the <see cref="WindowNotificationManager"/> class.
+    /// </summary>
+    public WindowNotificationManager()
+    {
+        UpdatePseudoClasses(Position);
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="WindowNotificationManager"/> class.
     /// </summary>
@@ -49,10 +58,7 @@ public class WindowNotificationManager : WindowMessageManager, INotificationMana
         }
     }
 
-    /// <summary>
-    /// Initializes a new instance of the <see cref="WindowNotificationManager"/> class.
-    /// </summary>
-    public WindowNotificationManager()
+    public WindowNotificationManager(VisualLayerManager? visualLayerManager) : base(visualLayerManager)
     {
         UpdatePseudoClasses(Position);
     }

src/Ursa/Controls/NotificationShared/WindowMessageManager.cs

@@ -39,6 +39,17 @@ public abstract class WindowMessageManager : TemplatedControl
         VerticalAlignmentProperty.OverrideDefaultValue<WindowMessageManager>(VerticalAlignment.Stretch);
     }
 
+    public WindowMessageManager()
+    {
+    }
+
+    public WindowMessageManager(VisualLayerManager? visualLayerManager) : this()
+    {
+        if (visualLayerManager is null) return;
+        visualLayerManager.AdornerLayer.Children.Add(this);
+        AdornerLayer.SetAdornedElement(this, visualLayerManager.AdornerLayer);
+    }
+
     /// <inheritdoc/>
     protected override void OnApplyTemplate(TemplateAppliedEventArgs e)
     {

src/Ursa/Controls/Toast/WindowToastManager.cs

@@ -1,5 +1,6 @@
 using Avalonia.Controls;
 using Avalonia.Controls.Notifications;
+using Avalonia.Controls.Primitives;
 using Avalonia.Threading;
 
 namespace Ursa.Controls;
@@ -9,6 +10,13 @@ namespace Ursa.Controls;
 /// </summary>
 public class WindowToastManager : WindowMessageManager, IToastManager
 {
+    /// <summary>
+    /// Initializes a new instance of the <see cref="WindowToastManager"/> class.
+    /// </summary>
+    public WindowToastManager()
+    {
+    }
+
     /// <summary>
     /// Initializes a new instance of the <see cref="WindowToastManager"/> class.
     /// </summary>
@@ -21,10 +29,7 @@ public class WindowToastManager : WindowMessageManager, IToastManager
         }
     }
 
-    /// <summary>
-    /// Initializes a new instance of the <see cref="WindowToastManager"/> class.
-    /// </summary>
-    public WindowToastManager()
+    public WindowToastManager(VisualLayerManager? visualLayerManager) : base(visualLayerManager)
     {
     }