--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Chronosv2/source/Extensions/Windows/FrameworkElementExtensions.cs	Tue Feb 21 17:25:44 2012 +0700
@@ -0,0 +1,84 @@
+/*
+The MIT License
+
+Copyright (c) 2009-2010. Carlos Guzmán Álvarez. http://chronoswpf.codeplex.com/
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
+using System;
+using System.Threading;
+using System.Windows;
+using System.Windows.Input;
+using System.Windows.Threading;
+
+namespace Chronos.Extensions.Windows
+{
+    public static class FrameworkElementExtensions
+    {
+        /// <summary>
+        /// Set focus to UIElement
+        /// </summary>
+        /// <param name="element">The element to set focus on</param>
+        public static void SetFocus(this FrameworkElement element)
+        {
+            //Focus in a callback to run on another thread, ensuring the main 
+            //UI thread is initialized by the time focus is set
+            ThreadPool.QueueUserWorkItem
+            (
+                delegate(object theElement)
+                {
+                    FrameworkElement elem = (FrameworkElement)theElement;
+
+                    elem.InvokeAsynchronouslyInBackground
+                    (
+                        () =>
+                        {
+                            bool result = elem.Focus();
+                            Keyboard.Focus(elem);
+                        }
+                    );
+                }, element
+            );
+        }
+
+        public static void MoveFocus(this IInputElement element, FocusNavigationDirection direction)
+        {
+            //Focus in a callback to run on another thread, ensuring the main 
+            //UI thread is initialized by the time focus is set
+            ThreadPool.QueueUserWorkItem
+            (
+                delegate(object theElement)
+                {
+                    FrameworkElement elem = (FrameworkElement)theElement;
+
+                    elem.InvokeAsynchronouslyInBackground
+                    (
+                        () =>
+                        {
+                            elem.Focus();
+                            Keyboard.Focus(elem);
+                            elem.MoveFocus(new TraversalRequest(direction));
+                        }
+                    );
+                }, element
+            );
+        }
+    }
+}