1 files changed, 36 insertions, 0 deletions
diff --git a/Xamarin.Forms.Platform.MacOS/Extensions/NSScrollViewExtensions.cs b/Xamarin.Forms.Platform.MacOS/Extensions/NSScrollViewExtensions.cs
new file mode 100644
index 00000000..f9104d4a
--- /dev/null
+++ b/Xamarin.Forms.Platform.MacOS/Extensions/NSScrollViewExtensions.cs
@@ -0,0 +1,36 @@
+using System.Threading.Tasks;
+using AppKit;
+using PointF = CoreGraphics.CGPoint;
+
+namespace Xamarin.Forms.Platform.MacOS
+{
+	internal static class NSScrollViewExtensions
+	{
+		public static Task ScrollToPositionAsync(this NSScrollView scrollView, PointF point, bool animate,
+			double duration = 0.5)
+		{
+			if (!animate)
+			{
+				var nsView = scrollView.DocumentView as NSView;
+				nsView?.ScrollPoint(point);
+				return Task.FromResult(true);
+			}
+
+			TaskCompletionSource<bool> source = new TaskCompletionSource<bool>();
+
+			NSAnimationContext.BeginGrouping();
+
+			NSAnimationContext.CurrentContext.CompletionHandler += () => { source.TrySetResult(true); };
+
+			NSAnimationContext.CurrentContext.Duration = duration;
+
+			var animator = scrollView.ContentView.Animator as NSView;
+
+			animator?.SetBoundsOrigin(point);
+
+			NSAnimationContext.EndGrouping();
+
+			return source.Task;
+		}
+	}
+}
+\ No newline at end of file