feat: add close button.

src/Ursa/Controls/Toast/IToast.cs

@@ -20,6 +20,11 @@ public interface IToast
     /// </summary>
     NotificationType Type { get; }
 
+    /// <summary>
+    /// Gets a value indicating whether the toast should show a close button.
+    /// </summary>
+    bool ShowClose { get; }
+
     /// <summary>
     /// Gets the expiration time of the toast after which it will automatically close.
     /// If the value is <see cref="TimeSpan.Zero"/> then the toast will remain open until the user closes it.

src/Ursa/Controls/Toast/Toast.cs

@@ -22,12 +22,14 @@ public class Toast : IToast, INotifyPropertyChanged
     /// <param name="type">The <see cref="NotificationType"/> of the toast.</param>
     /// <param name="expiration">The expiry time at which the toast will close. 
     /// Use <see cref="TimeSpan.Zero"/> for toasts that will remain open.</param>
+    /// <param name="showClose">A value indicating whether the toast should show a close button.</param>
     /// <param name="onClick">An Action to call when the toast is clicked.</param>
     /// <param name="onClose">An Action to call when the toast is closed.</param>
     public Toast(
         string? content,
         NotificationType type = NotificationType.Information,
         TimeSpan? expiration = null,
+        bool showClose = true,
         Action? onClick = null,
         Action? onClose = null)
     {
@@ -62,6 +64,9 @@ public class Toast : IToast, INotifyPropertyChanged
     /// <inheritdoc/>
     public NotificationType Type { get; set; }
 
+    /// <inheritdoc/>
+    public bool ShowClose { get; set; }
+
     /// <inheritdoc/>
     public TimeSpan Expiration { get; set; }
 

src/Ursa/Controls/Toast/ToastCard.cs

@@ -77,6 +77,14 @@ public class ToastCard : ContentControl
     /// </summary>
     public static readonly StyledProperty<NotificationType> NotificationTypeProperty =
         AvaloniaProperty.Register<ToastCard, NotificationType>(nameof(NotificationType));
+    public bool ShowClose
+    {
+        get => GetValue(ShowCloseProperty);
+        set => SetValue(ShowCloseProperty, value);
+    }
+
+    public static readonly StyledProperty<bool> ShowCloseProperty =
+        AvaloniaProperty.Register<ToastCard, bool>(nameof(ShowClose), true);
 
     /// <summary>
     /// Defines the <see cref="ToastClosed"/> event.

src/Ursa/Controls/Toast/WindowToastManager.cs

@@ -70,7 +70,7 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
     /// <inheritdoc/>
     public void Show(IToast content)
     {
-        Show(content, content.Type, content.Expiration, content.OnClick, content.OnClose);
+        Show(content, content.Type, content.Expiration, content.ShowClose, content.OnClick, content.OnClose);
     }
 
     /// <inheritdoc/>
@@ -78,7 +78,7 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
     {
         if (content is IToast toast)
         {
-            Show(toast, toast.Type, toast.Expiration, toast.OnClick, toast.OnClose);
+            Show(toast, toast.Type, toast.Expiration, toast.ShowClose, toast.OnClick, toast.OnClose);
         }
         else
         {
@@ -92,12 +92,14 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
     /// <param name="content">the content of the toast</param>
     /// <param name="type">the type of the toast</param>
     /// <param name="expiration">the expiration time of the toast after which it will automatically close. If the value is Zero then the toast will remain open until the user closes it</param>
+    /// <param name="showClose">whether to show the close button</param>
     /// <param name="onClick">an Action to be run when the toast is clicked</param>
     /// <param name="onClose">an Action to be run when the toast is closed</param>
     /// <param name="classes">style classes to apply</param>
     public async void Show(object content,
         NotificationType type,
         TimeSpan? expiration = null,
+        bool showClose = true,
         Action? onClick = null,
         Action? onClose = null,
         string[]? classes = null)
@@ -107,11 +109,12 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
         var toastControl = new ToastCard
         {
             Content = content,
-            NotificationType = type
+            NotificationType = type,
+            ShowClose = showClose
         };
 
         // Add style classes if any
-        if (classes != null)
+        if (classes is not null)
         {
             foreach (var @class in classes)
             {
@@ -119,19 +122,14 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
             }
         }
 
-        toastControl.ToastClosed += (sender, args) =>
+        toastControl.ToastClosed += (sender, _) =>
         {
             onClose?.Invoke();
 
             _items?.Remove(sender);
         };
 
-        toastControl.PointerPressed += (sender, args) =>
-        {
-            onClick?.Invoke();
-
-            (sender as ToastCard)?.Close();
-        };
+        toastControl.PointerPressed += (_, _) => { onClick?.Invoke(); };
 
         Dispatcher.UIThread.Post(() =>
         {
@@ -153,11 +151,6 @@ public class WindowToastManager : TemplatedControl, IManagedToastManager
         toastControl.Close();
     }
 
-    protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs change)
-    {
-        base.OnPropertyChanged(change);
-    }
-
     /// <summary>
     /// Installs the <see cref="WindowToastManager"/> within the <see cref="AdornerLayer"/>
     /// </summary>