Pushing missing changes

MediaBrowser.UI.Controls/ExtendedButton.cs

@@ -0,0 +1,49 @@
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Input;
+
+namespace MediaBrowser.UI.Controls
+{
+    /// <summary>
+    /// This subclass simply autofocuses itself when the mouse moves over it
+    /// </summary>
+    public class ExtendedButton : Button
+    {
+        private Point? _lastMouseMovePoint;
+
+        /// <summary>
+        /// Handles OnMouseMove to auto-select the item that's being moused over
+        /// </summary>
+        protected override void OnMouseMove(MouseEventArgs e)
+        {
+            base.OnMouseMove(e);
+
+            var window = this.GetWindow();
+
+            // If the cursor is currently hidden, don't bother reacting to it
+            if (Cursor == Cursors.None || window.Cursor == Cursors.None)
+            {
+                return;
+            }
+
+            // Store the last position for comparison purposes
+            // Even if the mouse is not moving this event will fire as elements are showing and hiding
+            var pos = e.GetPosition(window);
+
+            if (!_lastMouseMovePoint.HasValue)
+            {
+                _lastMouseMovePoint = pos;
+                return;
+            }
+
+            if (pos == _lastMouseMovePoint)
+            {
+                return;
+            }
+
+            _lastMouseMovePoint = pos;
+
+            Focus();
+        }
+    }
+}