Reorganize files

Validation/RepositionPopupBehavior.cs

@@ -0,0 +1,91 @@
+using System;
+using System.Windows;
+using System.Windows.Controls.Primitives;
+using System.Windows.Interactivity;
+
+namespace Common.Wpf.Validation
+{
+    /// <summary>
+    /// Defines the reposition behavior of a <see cref="Popup"/> control when the window to which it is attached is moved or resized.
+    /// </summary>
+    /// <remarks>
+    /// This solution was influenced by the answers provided by <see href="http://stackoverflow.com/users/262204/nathanaw">NathanAW</see> and
+    /// <see href="http://stackoverflow.com/users/718325/jason">Jason</see> to
+    /// <see href="http://stackoverflow.com/questions/1600218/how-can-i-move-a-wpf-popup-when-its-anchor-element-moves">this</see> question.
+    /// </remarks>
+    public class RepositionPopupBehavior : Behavior<Popup>
+    {
+        #region Protected Methods
+
+        /// <summary>
+        /// Called after the behavior is attached to an <see cref="Behavior.AssociatedObject"/>.
+        /// </summary>
+        protected override void OnAttached()
+        {
+            base.OnAttached();
+            var window = Window.GetWindow(AssociatedObject.PlacementTarget);
+            if (window == null) { return; }
+            window.LocationChanged += OnLocationChanged;
+            window.SizeChanged += OnSizeChanged;
+            AssociatedObject.Loaded += AssociatedObject_Loaded;
+        }
+
+        void AssociatedObject_Loaded(object sender, RoutedEventArgs e)
+        {
+            //AssociatedObject.HorizontalOffset = 7;
+            //AssociatedObject.VerticalOffset = -AssociatedObject.Height;
+        }
+
+        /// <summary>
+        /// Called when the behavior is being detached from its <see cref="Behavior.AssociatedObject"/>, but before it has actually occurred.
+        /// </summary>
+        protected override void OnDetaching()
+        {
+            base.OnDetaching();
+            var window = Window.GetWindow(AssociatedObject.PlacementTarget);
+            if (window == null) { return; }
+            window.LocationChanged -= OnLocationChanged;
+            window.SizeChanged -= OnSizeChanged;
+            AssociatedObject.Loaded -= AssociatedObject_Loaded;
+        }
+
+        #endregion Protected Methods
+
+        #region Private Methods
+
+        /// <summary>
+        /// Handles the <see cref="Window.LocationChanged"/> routed event which occurs when the window's location changes.
+        /// </summary>
+        /// <param name="sender">
+        /// The source of the event.
+        /// </param>
+        /// <param name="e">
+        /// An object that contains the event data.
+        /// </param>
+        private void OnLocationChanged(object sender, EventArgs e)
+        {
+            var offset = AssociatedObject.HorizontalOffset;
+            AssociatedObject.HorizontalOffset = offset + 1;
+            AssociatedObject.HorizontalOffset = offset;
+        }
+
+        /// <summary>
+        /// Handles the <see cref="Window.SizeChanged"/> routed event which occurs when either then <see cref="Window.ActualHeight"/> or the
+        /// <see cref="Window.ActualWidth"/> properties change value.
+        /// </summary>
+        /// <param name="sender">
+        /// The source of the event.
+        /// </param>
+        /// <param name="e">
+        /// An object that contains the event data.
+        /// </param>
+        private void OnSizeChanged(object sender, SizeChangedEventArgs e)
+        {
+            var offset = AssociatedObject.HorizontalOffset;
+            AssociatedObject.HorizontalOffset = offset + 1;
+            AssociatedObject.HorizontalOffset = offset;
+        }
+
+        #endregion Private Methods
+    }
+}