Allow for null renderer.

This can happen in unit tests.
7 years ago · 65234e8e43
1 changed files with 5 additions and 1 deletions
--- a/src/Avalonia.Controls/TopLevel.cs
+++ b/src/Avalonia.Controls/TopLevel.cs
@ -97,7 +97,11 @@ namespace Avalonia.Controls
            _renderInterface = TryGetService<IPlatformRenderInterface>(dependencyResolver);

            Renderer = impl.CreateRenderer(this);
-            Renderer.SceneInvalidated += SceneInvalidated;
+
+            if (Renderer != null)
+            {
+                Renderer.SceneInvalidated += SceneInvalidated;
+            }

            impl.SetInputRoot(this);