Use as instead of cast.

In case someone's doing something funky, fail gracefully.
6 years ago · 7354ba337a
1 changed files with 3 additions and 3 deletions
--- a/src/Avalonia.Input/KeyboardDevice.cs
+++ b/src/Avalonia.Input/KeyboardDevice.cs
@ -98,7 +98,7 @@ namespace Avalonia.Input
                    break;
                }

-                el = (IInputElement)el.VisualParent;
+                el = el.VisualParent as IInputElement;
            }

            el = oldElement;
@ -117,8 +117,8 @@ namespace Avalonia.Input
                    ie.IsKeyboardFocusWithin = true;
                }

-                el = (IInputElement)el.VisualParent;
-            }    
+                el = el.VisualParent as IInputElement;
+            }
        }
        
        private void ClearChildrenFocusWithin(IInputElement element, bool clearRoot)