From 001cf40835cf9f0001f957e64d10ee34f5cdafaa Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Wies=C5=82aw=20S=CC=8Colte=CC=81s?=
 <wieslaw.soltes@gmail.com>
Date: Thu, 14 Mar 2024 23:48:40 +0100
Subject: [PATCH] Update SvgImage.cs

---
 src/Avalonia.Svg.Skia/SvgImage.cs | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Svg.Skia/SvgImage.cs b/src/Avalonia.Svg.Skia/SvgImage.cs
index 30c1cded..10d27b71 100644
--- a/src/Avalonia.Svg.Skia/SvgImage.cs
+++ b/src/Avalonia.Svg.Skia/SvgImage.cs
@@ -1,4 +1,5 @@
-using Avalonia.Media;
+using System;
+using Avalonia.Media;
 using Avalonia.Metadata;
 using Svg.Model;
 
@@ -9,6 +10,11 @@ namespace Avalonia.Svg.Skia;
 /// </summary>
 public class SvgImage : AvaloniaObject, IImage
 {
+    /// <summary>
+    /// Raised when the resource changes visually.
+    /// </summary>
+    public event EventHandler? Invalidated;
+
     /// <summary>
     /// Defines the <see cref="Source"/> property.
     /// </summary>
@@ -99,6 +105,7 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
         if (change.Property == SourceProperty)
         {
             // TODO: Invalidate IImage
+            RaiseInvalidated(EventArgs.Empty);
         }
 
         if (change.Property == CssProperty)
@@ -108,6 +115,7 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
             if (Source?.Css != css)
             {
                 Source?.ReLoad(new SvgParameters(null, css));
+                RaiseInvalidated(EventArgs.Empty);
             }
         }
 
@@ -118,7 +126,14 @@ protected override void OnPropertyChanged(AvaloniaPropertyChangedEventArgs chang
             if (Source?.Css != css)
             {
                 Source?.ReLoad(new SvgParameters(null, css));
+                RaiseInvalidated(EventArgs.Empty);
             }
         }
     }
+
+    /// <summary>
+    /// Raises the <see cref="Invalidated"/> event.
+    /// </summary>
+    /// <param name="e">The event args.</param>
+    protected void RaiseInvalidated(EventArgs e) => Invalidated?.Invoke(this, e);
 }