From 53790d22e3e9cefced0825b34473180ae09fc848 Mon Sep 17 00:00:00 2001
From: Emmanuel Hansen <emmausssss@gmail.com>
Date: Wed, 31 Jul 2024 10:44:25 +0000
Subject: [PATCH] raise cloned pointer wheel event in scrollbar

---
 src/Avalonia.Controls/Primitives/ScrollBar.cs | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/src/Avalonia.Controls/Primitives/ScrollBar.cs b/src/Avalonia.Controls/Primitives/ScrollBar.cs
index bc89faa4021..7df7012f8f7 100644
--- a/src/Avalonia.Controls/Primitives/ScrollBar.cs
+++ b/src/Avalonia.Controls/Primitives/ScrollBar.cs
@@ -262,8 +262,18 @@ protected override void OnPointerWheelChanged(PointerWheelEventArgs e)
             base.OnPointerWheelChanged(e);
 
             // We need to handle pointer wheel event to allow scrolling with the pointer wheel. So we raise the event on the scrollviewer's presenter
-            if(!e.Handled && _owner?.Presenter is { } presenter)
+            if (!e.Handled && _owner?.Presenter is { } presenter && VisualRoot is Visual root)
             {
+                e.Handled = true;
+                e = new PointerWheelEventArgs(
+                    this,
+                    e.Pointer,
+                    root,
+                    e.GetPosition(root),
+                    e.Timestamp,
+                    new PointerPointProperties((RawInputModifiers)e.KeyModifiers, PointerUpdateKind.Other),
+                    e.KeyModifiers,
+                    e.Delta);
                 presenter.RaiseEvent(e);
             }
         }