--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SilverlightGlimpse/FloatableWindow/FloatableWindow.cs	Sun Apr 22 09:01:20 2012 +0100
@@ -0,0 +1,1698 @@
+// This source is subject to the Microsoft Public License (Ms-PL).
+// Please see http://go.microsoft.com/fwlink/?LinkID=131993 for details.
+// All other rights reserved.
+
+using System.Collections;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Windows.Automation;
+using System.Windows.Automation.Peers;
+using System.Windows.Controls.Primitives;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Animation;
+
+namespace System.Windows.Controls
+{
+    /// <summary>
+    /// Provides a window that can be displayed over a parent window and blocks
+    /// interaction with the parent window.
+    /// </summary>
+    /// <QualityBand>Preview</QualityBand>
+    [TemplatePart(Name = PART_Chrome, Type = typeof(FrameworkElement))]
+    [TemplatePart(Name = PART_CloseButton, Type = typeof(ButtonBase))]
+    [TemplatePart(Name = PART_ContentPresenter, Type = typeof(FrameworkElement))]
+    [TemplatePart(Name = PART_ContentRoot, Type = typeof(FrameworkElement))]
+    [TemplatePart(Name = PART_Overlay, Type = typeof(Panel))]
+    [TemplatePart(Name = PART_Root, Type = typeof(FrameworkElement))]
+    [TemplatePart(Name = PART_Resizer, Type = typeof(FrameworkElement))]
+    [TemplateVisualState(Name = VSMSTATE_StateClosed, GroupName = VSMGROUP_Window)]
+    [TemplateVisualState(Name = VSMSTATE_StateOpen, GroupName = VSMGROUP_Window)]
+    public class FloatableWindow : ContentControl
+    {
+        #region Static Fields and Constants
+
+        /// <summary>
+        /// The name of the Chrome template part.
+        /// </summary>
+        private const string PART_Chrome = "Chrome";
+
+        /// <summary>
+        /// The name of the Resizer template part.
+        /// </summary>
+        private const string PART_Resizer = "Resizer";
+
+        /// <summary>
+        /// The name of the CloseButton template part.
+        /// </summary>
+        private const string PART_CloseButton = "CloseButton";
+
+        /// <summary>
+        /// The name of the ContentPresenter template part.
+        /// </summary>
+        private const string PART_ContentPresenter = "ContentPresenter";
+
+        /// <summary>
+        /// The name of the ContentRoot template part.
+        /// </summary>
+        private const string PART_ContentRoot = "ContentRoot";
+
+        /// <summary>
+        /// The name of the Overlay template part.
+        /// </summary>
+        private const string PART_Overlay = "Overlay";
+
+        /// <summary>
+        /// The name of the Root template part.
+        /// </summary>
+        private const string PART_Root = "Root";
+
+        /// <summary>
+        /// The name of the WindowStates VSM group.
+        /// </summary>
+        private const string VSMGROUP_Window = "WindowStates";
+
+        /// <summary>
+        /// The name of the Closing VSM state.
+        /// </summary>
+        private const string VSMSTATE_StateClosed = "Closed";
+
+        /// <summary>
+        /// The name of the Opening VSM state.
+        /// </summary>
+        private const string VSMSTATE_StateOpen = "Open";
+
+        #region public bool HasCloseButton
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> has a close
+        /// button.
+        /// </summary>
+        /// <value>
+        /// True if the child window has a close button; otherwise, false. The
+        /// default is true.
+        /// </value>
+        public bool HasCloseButton
+        {
+            get { return (bool)GetValue(HasCloseButtonProperty); }
+            set { SetValue(HasCloseButtonProperty, value); }
+        }
+
+        /// <summary>
+        /// Identifies the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.HasCloseButton" />
+        /// dependency property.
+        /// </summary>
+        /// <value>
+        /// The identifier for the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.HasCloseButton" />
+        /// dependency property.
+        /// </value>
+        public static readonly DependencyProperty HasCloseButtonProperty =
+            DependencyProperty.Register(
+            "HasCloseButton",
+            typeof(bool),
+            typeof(FloatableWindow),
+            new PropertyMetadata(true, OnHasCloseButtonPropertyChanged));
+
+        /// <summary>
+        /// HasCloseButtonProperty PropertyChangedCallback call back static function.
+        /// </summary>
+        /// <param name="d">FloatableWindow object whose HasCloseButton property is changed.</param>
+        /// <param name="e">DependencyPropertyChangedEventArgs which contains the old and new values.</param>
+        private static void OnHasCloseButtonPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            FloatableWindow cw = (FloatableWindow)d;
+
+            if (cw.CloseButton != null)
+            {
+                if ((bool)e.NewValue)
+                {
+                    cw.CloseButton.Visibility = Visibility.Visible;
+                }
+                else
+                {
+                    cw.CloseButton.Visibility = Visibility.Collapsed;
+                }
+            }
+        }
+
+        #endregion public bool HasCloseButton
+
+        #region public Brush OverlayBrush
+
+        /// <summary>
+        /// Gets or sets the visual brush that is used to cover the parent
+        /// window when the child window is open.
+        /// </summary>
+        /// <value>
+        /// The visual brush that is used to cover the parent window when the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> is open. The
+        /// default is null.
+        /// </value>
+        public Brush OverlayBrush
+        {
+            get { return (Brush)GetValue(OverlayBrushProperty); }
+            set { SetValue(OverlayBrushProperty, value); }
+        }
+
+        /// <summary>
+        /// Identifies the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.OverlayBrush" />
+        /// dependency property.
+        /// </summary>
+        /// <value>
+        /// The identifier for the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.OverlayBrush" />
+        /// dependency property.
+        /// </value>
+        public static readonly DependencyProperty OverlayBrushProperty =
+            DependencyProperty.Register(
+            "OverlayBrush",
+            typeof(Brush),
+            typeof(FloatableWindow),
+            new PropertyMetadata(OnOverlayBrushPropertyChanged));
+
+        /// <summary>
+        /// OverlayBrushProperty PropertyChangedCallback call back static function.
+        /// </summary>
+        /// <param name="d">FloatableWindow object whose OverlayBrush property is changed.</param>
+        /// <param name="e">DependencyPropertyChangedEventArgs which contains the old and new values.</param>
+        private static void OnOverlayBrushPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            FloatableWindow cw = (FloatableWindow)d;
+
+            if (cw.Overlay != null)
+            {
+                cw.Overlay.Background = (Brush)e.NewValue;
+            }
+        }
+
+        #endregion public Brush OverlayBrush
+
+        #region public double OverlayOpacity
+
+        /// <summary>
+        /// Gets or sets the opacity of the overlay brush that is used to cover
+        /// the parent window when the child window is open.
+        /// </summary>
+        /// <value>
+        /// The opacity of the overlay brush that is used to cover the parent
+        /// window when the <see cref="T:System.Windows.Controls.FloatableWindow" />
+        /// is open. The default is 1.0.
+        /// </value>
+        public double OverlayOpacity
+        {
+            get { return (double)GetValue(OverlayOpacityProperty); }
+            set { SetValue(OverlayOpacityProperty, value); }
+        }
+
+        /// <summary>
+        /// Identifies the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.OverlayOpacity" />
+        /// dependency property.
+        /// </summary>
+        /// <value>
+        /// The identifier for the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.OverlayOpacity" />
+        /// dependency property.
+        /// </value>
+        public static readonly DependencyProperty OverlayOpacityProperty =
+            DependencyProperty.Register(
+            "OverlayOpacity",
+            typeof(double),
+            typeof(FloatableWindow),
+            new PropertyMetadata(OnOverlayOpacityPropertyChanged));
+
+        /// <summary>
+        /// OverlayOpacityProperty PropertyChangedCallback call back static function.
+        /// </summary>
+        /// <param name="d">FloatableWindow object whose OverlayOpacity property is changed.</param>
+        /// <param name="e">DependencyPropertyChangedEventArgs which contains the old and new values.</param>
+        private static void OnOverlayOpacityPropertyChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
+        {
+            FloatableWindow cw = (FloatableWindow)d;
+
+            if (cw.Overlay != null)
+            {
+                cw.Overlay.Opacity = (double)e.NewValue;
+            }
+        }
+
+        #endregion public double OverlayOpacity
+
+        #region private static Control RootVisual
+
+        /// <summary>
+        /// Gets the root visual element.
+        /// </summary>
+        private static Control RootVisual
+        {
+            get
+            {
+                return Application.Current == null ? null : (Application.Current.RootVisual as Control);
+            }
+        }
+
+        #endregion private static Control RootVisual
+
+        #region public object Title
+
+        /// <summary>
+        /// Gets or sets the title that is displayed in the frame of the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" />.
+        /// </summary>
+        /// <value>
+        /// The title displayed at the top of the window. The default is null.
+        /// </value>
+        public object Title
+        {
+            get { return GetValue(TitleProperty); }
+            set { SetValue(TitleProperty, value); }
+        }
+
+        /// <summary>
+        /// Identifies the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.Title" />
+        /// dependency property.
+        /// </summary>
+        /// <value>
+        /// The identifier for the
+        /// <see cref="P:System.Windows.Controls.FloatableWindow.Title" />
+        /// dependency property.
+        /// </value>
+        public static readonly DependencyProperty TitleProperty =
+            DependencyProperty.Register(
+            "Title",
+            typeof(object),
+            typeof(FloatableWindow),
+            null);
+
+        #endregion public object Title
+
+        #endregion Static Fields and Constants
+
+        #region Member Fields
+        /// <summary>
+        /// Set in the overloaded Show method.  Offsets the Popup vertically from the top left corner of the browser window by this amount.
+        /// </summary>
+        private double _verticalOffset;
+
+        /// <summary>
+        /// Set in the overloaded Show method.  Offsets the Popup horizontally from the top left corner of the browser window by this amount.
+        /// </summary>
+        private double _horizontalOffset;
+
+        /// <summary>
+        /// Private accessor for the Resizer.
+        /// </summary>
+        private FrameworkElement _resizer;
+
+        /// <summary>
+        /// Private accessor for the IsModal
+        /// </summary>
+        [DefaultValue(false)]
+        private bool _modal;
+
+        /// <summary>
+        /// Private accessor for the Chrome.
+        /// </summary>
+        private FrameworkElement _chrome;
+
+        /// <summary>
+        /// Private accessor for the click point on the chrome.
+        /// </summary>
+        private Point _clickPoint;
+
+        /// <summary>
+        /// Private accessor for the Closing storyboard.
+        /// </summary>
+        private Storyboard _closed;
+
+        /// <summary>
+        /// Private accessor for the ContentPresenter.
+        /// </summary>
+        private FrameworkElement _contentPresenter;
+
+        /// <summary>
+        /// Private accessor for the translate transform that needs to be applied on to the ContentRoot.
+        /// </summary>
+        private TranslateTransform _contentRootTransform;
+
+        /// <summary>
+        /// Content area desired width.
+        /// </summary>
+        private double _desiredContentWidth;
+
+        /// <summary>
+        /// Content area desired height.
+        /// </summary>
+        private double _desiredContentHeight;
+
+        /// <summary>
+        /// Desired margin for the window.
+        /// </summary>
+        private Thickness _desiredMargin;
+
+        /// <summary>
+        /// Private accessor for the Dialog Result property.
+        /// </summary>
+        private bool? _dialogresult;
+
+        /// <summary>
+        /// Private accessor for the FloatableWindow InteractionState.
+        /// </summary>
+        private WindowInteractionState _interactionState;
+
+        /// <summary>
+        /// Boolean value that specifies whether the application is exit or not.
+        /// </summary>
+        private bool _isAppExit;
+
+        /// <summary>
+        /// Boolean value that specifies whether the window is in closing state or not.
+        /// </summary>
+        private bool _isClosing;
+
+        /// <summary>
+        /// Boolean value that specifies whether the window is opened.
+        /// </summary>
+        private bool _isOpen;
+
+        /// <summary>
+        /// Private accessor for the Opening storyboard.
+        /// </summary>
+        private Storyboard _opened;
+
+        /// <summary>
+        /// Boolean value that specifies whether the mouse is captured or not.
+        /// </summary>
+        private bool _isMouseCaptured;
+
+        /// <summary>
+        /// Private accessor for the Root of the window.
+        /// </summary>
+        private FrameworkElement _root;
+
+        /// <summary>
+        /// Private accessor for the position of the window with respect to RootVisual.
+        /// </summary>
+        private Point _windowPosition;
+
+        private static int z;
+
+        #endregion Member Fields
+
+        #region Constructors
+
+        /// <summary>
+        /// Initializes a new instance of the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> class.
+        /// </summary>
+        public FloatableWindow()
+        {
+            this.DefaultStyleKey = typeof(FloatableWindow);
+            this.InteractionState = WindowInteractionState.NotResponding;
+            this.ResizeMode = ResizeMode.CanResize;
+        }
+
+        #endregion Constructors
+
+        #region Events
+
+        /// <summary>
+        /// Occurs when the <see cref="T:System.Windows.Controls.FloatableWindow" />
+        /// is closed.
+        /// </summary>
+        public event EventHandler Closed;
+
+        /// <summary>
+        /// Occurs when the <see cref="T:System.Windows.Controls.FloatableWindow" />
+        /// is closing.
+        /// </summary>
+        public event EventHandler<CancelEventArgs> Closing;
+
+        #endregion Events
+
+        #region Properties
+
+        public Panel ParentLayoutRoot
+        {
+            get;
+            set;
+        }
+
+        /// <summary>
+        /// Gets the internal accessor for the ContentRoot of the window.
+        /// </summary>
+        internal FrameworkElement ContentRoot
+        {
+            get;
+            private set;
+        }
+
+        /// <summary>
+        /// Setting for the horizontal positioning offset for start position
+        /// </summary>
+        public double HorizontalOffset
+        {
+            get { return _horizontalOffset; }
+            set { _horizontalOffset = value; }
+        }
+
+        /// <summary>
+        /// Setting for the vertical positioning offset for start position
+        /// </summary>
+        public double VerticalOffset
+        {
+            get { return _verticalOffset; }
+            set { _verticalOffset = value; }
+        }
+
+        /// <summary>
+        /// Gets the internal accessor for the modal of the window.
+        /// </summary>
+        public bool IsModal
+        {
+            get
+            {
+                return _modal;
+            }
+        }
+
+        /// <summary>
+        /// Gets or sets a value indicating whether the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> was accepted or
+        /// canceled.
+        /// </summary>
+        /// <value>
+        /// True if the child window was accepted; false if the child window was
+        /// canceled. The default is null.
+        /// </value>
+        [TypeConverter(typeof(NullableBoolConverter))]
+        public bool? DialogResult
+        {
+            get
+            {
+                return this._dialogresult;
+            }
+
+            set
+            {
+                if (this._dialogresult != value)
+                {
+                    this._dialogresult = value;
+                    this.Close();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets the internal accessor for the PopUp of the window.
+        /// </summary>
+        internal Popup ChildWindowPopup
+        {
+            get;
+            private set;
+        }
+
+        /// <summary>
+        /// Gets the internal accessor for the close button of the window.
+        /// </summary>
+        internal ButtonBase CloseButton
+        {
+            get;
+            private set;
+        }
+
+        /// <summary>
+        /// Gets the InteractionState for the FloatableWindow.
+        /// </summary>
+        internal WindowInteractionState InteractionState
+        {
+            get
+            {
+                return this._interactionState;
+            }
+            private set
+            {
+                if (this._interactionState != value)
+                {
+                    WindowInteractionState oldValue = this._interactionState;
+                    this._interactionState = value;
+                    FloatableWindowAutomationPeer peer = FloatableWindowAutomationPeer.FromElement(this) as FloatableWindowAutomationPeer;
+
+                    if (peer != null)
+                    {
+                        peer.RaiseInteractionStatePropertyChangedEvent(oldValue, this._interactionState);
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Gets a value indicating whether the PopUp is open or not.
+        /// </summary>
+        private bool IsOpen
+        {
+            get
+            {
+                return (this.ChildWindowPopup != null && this.ChildWindowPopup.IsOpen) ||
+                    ((ParentLayoutRoot != null) && (ParentLayoutRoot.Children.Contains(this)));
+            }
+        }
+
+        /// <summary>
+        /// Gets the internal accessor for the overlay of the window.
+        /// </summary>
+        internal Panel Overlay
+        {
+            get;
+            private set;
+        }
+
+        public ResizeMode ResizeMode
+        {
+            get;
+            set;
+        }
+
+        #endregion Properties
+
+        #region Static Methods
+
+        /// <summary>
+        /// Inverts the input matrix.
+        /// </summary>
+        /// <param name="matrix">The matrix values that is to be inverted.</param>
+        /// <returns>Returns a value indicating whether the inversion was successful or not.</returns>
+        private static bool InvertMatrix(ref Matrix matrix)
+        {
+            double determinant = (matrix.M11 * matrix.M22) - (matrix.M12 * matrix.M21);
+
+            if (determinant == 0.0)
+            {
+                return false;
+            }
+
+            Matrix matCopy = matrix;
+            matrix.M11 = matCopy.M22 / determinant;
+            matrix.M12 = -1 * matCopy.M12 / determinant;
+            matrix.M21 = -1 * matCopy.M21 / determinant;
+            matrix.M22 = matCopy.M11 / determinant;
+            matrix.OffsetX = ((matCopy.OffsetY * matCopy.M21) - (matCopy.OffsetX * matCopy.M22)) / determinant;
+            matrix.OffsetY = ((matCopy.OffsetX * matCopy.M12) - (matCopy.OffsetY * matCopy.M11)) / determinant;
+
+            return true;
+        }
+
+        #endregion Static Methods
+
+        #region Methods
+
+        /// <summary>
+        /// Executed when the application is exited.
+        /// </summary>
+        /// <param name="sender">The sender.</param>
+        /// <param name="e">Event args.</param>
+        internal void Application_Exit(object sender, EventArgs e)
+        {
+            if (this.IsOpen)
+            {
+                this._isAppExit = true;
+                try
+                {
+                    this.Close();
+                }
+                finally
+                {
+                    this._isAppExit = false;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Executed when focus is given to the window via a click.  Attempts to bring current 
+        /// window to the front in the event there are more windows.
+        /// </summary>
+        internal void BringToFront()
+        {
+            z++;
+            Canvas.SetZIndex(this, z);
+#if DEBUG
+            this.Title = z.ToString();
+#endif
+        }
+
+        /// <summary>
+        /// Changes the visual state of the FloatableWindow.
+        /// </summary>
+        private void ChangeVisualState()
+        {
+            if (this._isClosing)
+            {
+                VisualStateManager.GoToState(this, VSMSTATE_StateClosed, true);
+            }
+            else
+            {
+                VisualStateManager.GoToState(this, VSMSTATE_StateOpen, true);
+                BringToFront();
+            }
+        }
+
+        /// <summary>
+        /// Executed when FloatableWindow size is changed.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Size changed event args.</param>
+        private void ChildWindow_SizeChanged(object sender, SizeChangedEventArgs e)
+        {
+            if (_modal)
+            {
+                if (this.Overlay != null)
+                {
+                    if (e.NewSize.Height != this.Overlay.Height)
+                    {
+                        this._desiredContentHeight = e.NewSize.Height;
+                    }
+
+                    if (e.NewSize.Width != this.Overlay.Width)
+                    {
+                        this._desiredContentWidth = e.NewSize.Width;
+                    }
+                }
+
+                if (this.IsOpen)
+                {
+                    this.UpdateOverlaySize();
+                }
+            }
+        }
+
+        /// <summary>
+        /// Closes a <see cref="T:System.Windows.Controls.FloatableWindow" />.
+        /// </summary>
+        public void Close()
+        {
+            // AutomationPeer returns "Closing" when Close() is called
+            // but the window is not closed completely:
+            this.InteractionState = WindowInteractionState.Closing;
+            CancelEventArgs e = new CancelEventArgs();
+            this.OnClosing(e);
+
+            // On ApplicationExit, close() cannot be cancelled
+            if (!e.Cancel || this._isAppExit)
+            {
+                if (RootVisual != null)
+                {
+                    RootVisual.IsEnabled = true;
+                }
+
+                // Close Popup
+                if (this.IsOpen)
+                {
+                    if (this._closed != null)
+                    {
+                        // Popup will be closed when the storyboard ends
+                        this._isClosing = true;
+                        try
+                        {
+                            var sb = GetVisualStateStoryboard("WindowStates", "Closed");
+                            sb.Completed += (s, args) =>
+                            {
+                                this.ParentLayoutRoot.Children.Remove(this);
+                                this.OnClosed(EventArgs.Empty);
+                                this.UnSubscribeFromEvents();
+                                this.UnsubscribeFromTemplatePartEvents();
+
+                                if (Application.Current.RootVisual != null)
+                                {
+                                    Application.Current.RootVisual.GotFocus -= new RoutedEventHandler(this.RootVisual_GotFocus);
+                                }
+                            };
+                            this.ChangeVisualState();
+                        }
+                        finally
+                        {
+                            this._isClosing = false;
+                        }
+                    }
+                    else
+                    {
+                        // If no closing storyboard is defined, close the Popup
+                        this.ChildWindowPopup.IsOpen = false;
+                    }
+
+                    if (!this._dialogresult.HasValue)
+                    {
+                        // If close action is not happening because of DialogResult property change action,
+                        // Dialogresult is always false:
+                        this._dialogresult = false;
+                    }
+
+                    //this.OnClosed(EventArgs.Empty);
+                    //this.UnSubscribeFromEvents();
+                    //this.UnsubscribeFromTemplatePartEvents();
+
+                    //if (Application.Current.RootVisual != null)
+                    //{
+                    //    Application.Current.RootVisual.GotFocus -= new RoutedEventHandler(this.RootVisual_GotFocus);
+                    //}
+                }
+            }
+            else
+            {
+                // If the Close is cancelled, DialogResult should always be NULL:
+                this._dialogresult = null;
+                this.InteractionState = WindowInteractionState.Running;
+            }
+        }
+
+        /// <summary>
+        /// Brings the window to the front of others
+        /// </summary>
+        /// <param name="sender"></param>
+        /// <param name="e"></param>
+        internal void ContentRoot_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            BringToFront();
+        }
+
+        /// <summary>
+        /// Executed when the CloseButton is clicked.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Routed event args.</param>
+        internal void CloseButton_Click(object sender, RoutedEventArgs e)
+        {
+            this.Close();
+        }
+
+        /// <summary>
+        /// Executed when the Closing storyboard ends.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Event args.</param>
+        private void Closing_Completed(object sender, EventArgs e)
+        {
+            if (this.ChildWindowPopup != null)
+            {
+                this.ChildWindowPopup.IsOpen = false;
+            }
+
+            // AutomationPeer returns "NotResponding" when the FloatableWindow is closed:
+            this.InteractionState = WindowInteractionState.NotResponding;
+
+            if (this._closed != null)
+            {
+                this._closed.Completed -= new EventHandler(this.Closing_Completed);
+            }
+        }
+
+        /// <summary>
+        /// Executed when the a key is presses when the window is open.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Key event args.</param>
+        private void ChildWindow_KeyDown(object sender, KeyEventArgs e)
+        {
+            FloatableWindow ew = sender as FloatableWindow;
+            Debug.Assert(ew != null, "FloatableWindow instance is null.");
+
+            // Ctrl+Shift+F4 closes the FloatableWindow
+            if (e != null && !e.Handled && e.Key == Key.F4 &&
+                ((Keyboard.Modifiers & ModifierKeys.Control) == ModifierKeys.Control) &&
+                ((Keyboard.Modifiers & ModifierKeys.Shift) == ModifierKeys.Shift))
+            {
+                ew.Close();
+                e.Handled = true;
+            }
+        }
+
+        /// <summary>
+        /// Executed when the window loses focus.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Routed event args.</param>
+        private void ChildWindow_LostFocus(object sender, RoutedEventArgs e)
+        {
+            // If the FloatableWindow loses focus but the popup is still open,
+            // it means another popup is opened. To get the focus back when the
+            // popup is closed, we handle GotFocus on the RootVisual
+            // TODO: Something else could get focus and handle the GotFocus event right.  
+            // Try listening to routed events that were Handled (new SL 3 feature)
+            // Blocked by Jolt bug #29419
+            if (this.IsOpen && Application.Current != null && Application.Current.RootVisual != null)
+            {
+                this.InteractionState = WindowInteractionState.BlockedByModalWindow;
+                Application.Current.RootVisual.GotFocus += new RoutedEventHandler(this.RootVisual_GotFocus);
+            }
+        }
+
+        /// <summary>
+        /// Executed when mouse left button is down on the chrome.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Mouse button event args.</param>
+        private void Chrome_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
+        {
+            if (this._chrome != null)
+            {
+                e.Handled = true;
+
+                if (this.CloseButton != null && !this.CloseButton.IsTabStop)
+                {
+                    this.CloseButton.IsTabStop = true;
+                    try
+                    {
+                        this.Focus();
+                    }
+                    finally
+                    {
+                        this.CloseButton.IsTabStop = false;
+                    }
+                }
+                else
+                {
+                    this.Focus();
+                }
+                this._chrome.CaptureMouse();
+                this._isMouseCaptured = true;
+                this._clickPoint = e.GetPosition(sender as UIElement);
+#if DEBUG
+                this.Title = string.Format("X:{0},Y:{1}", this._clickPoint.X.ToString(), this._clickPoint.Y.ToString());
+#endif
+            }
+        }
+
+        /// <summary>
+        /// Executed when mouse left button is up on the chrome.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Mouse button event args.</param>
+        private void Chrome_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
+        {
+            if (this._chrome != null)
+            {
+                //e.Handled = true;
+                this._chrome.ReleaseMouseCapture();
+                this._isMouseCaptured = false;
+            }
+        }
+
+        /// <summary>
+        /// Executed when mouse moves on the chrome.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Mouse event args.</param>
+        private void Chrome_MouseMove(object sender, MouseEventArgs e)
+        {
+            #region New ChildWindow Code not working
+            //if (this._isMouseCaptured && this.ContentRoot != null && Application.Current != null && Application.Current.RootVisual != null)
+            //{
+            //    Point position = e.GetPosition(Application.Current.RootVisual);
+
+            //    GeneralTransform gt = this.ContentRoot.TransformToVisual(Application.Current.RootVisual);
+
+            //    if (gt != null)
+            //    {
+            //        Point p = gt.Transform(this._clickPoint);
+            //        this._windowPosition = gt.Transform(new Point(0, 0));
+
+            //        if (position.X < 0)
+            //        {
+            //            double Y = FindPositionY(p, position, 0);
+            //            position = new Point(0, Y);
+            //        }
+
+            //        if (position.X > this.Width)
+            //        {
+            //            double Y = FindPositionY(p, position, this.Width);
+            //            position = new Point(this.Width, Y);
+            //        }
+
+            //        if (position.Y < 0)
+            //        {
+            //            double X = FindPositionX(p, position, 0);
+            //            position = new Point(X, 0);
+            //        }
+
+            //        if (position.Y > this.Height)
+            //        {
+            //            double X = FindPositionX(p, position, this.Height);
+            //            position = new Point(X, this.Height);
+            //        }
+
+            //        double x = position.X - p.X;
+            //        double y = position.Y - p.Y;
+            //        UpdateContentRootTransform(x, y);
+            //    }
+            //} 
+            #endregion
+            if (this._isMouseCaptured && this.ContentRoot != null)
+            {
+                // If the child window is dragged out of the page, return
+                if (Application.Current != null && Application.Current.RootVisual != null &&
+                    (e.GetPosition(Application.Current.RootVisual).X < 0 || e.GetPosition(Application.Current.RootVisual).Y < 0))
+                {
+                    return;
+                }
+
+                TransformGroup transformGroup = this.ContentRoot.RenderTransform as TransformGroup;
+
+                if (transformGroup == null)
+                {
+                    transformGroup = new TransformGroup();
+                    transformGroup.Children.Add(this.ContentRoot.RenderTransform);
+                }
+
+                TranslateTransform t = new TranslateTransform();
+                t.X = e.GetPosition(this.ContentRoot).X - this._clickPoint.X;
+                t.Y = e.GetPosition(this.ContentRoot).Y - this._clickPoint.Y;
+                if (transformGroup != null)
+                {
+                    transformGroup.Children.Add(t);
+                    this.ContentRoot.RenderTransform = transformGroup;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Executed when the ContentPresenter size changes.
+        /// </summary>
+        /// <param name="sender">Content Presenter object.</param>
+        /// <param name="e">SizeChanged event args.</param>
+        private void ContentPresenter_SizeChanged(object sender, SizeChangedEventArgs e)
+        {
+            // timheuer: not sure really why this is here?
+            //if (this.ContentRoot != null && Application.Current != null && Application.Current.RootVisual != null && _isOpen)
+            //{
+            //    GeneralTransform gt = this.ContentRoot.TransformToVisual(Application.Current.RootVisual);
+
+            //    if (gt != null)
+            //    {
+            //        Point p = gt.Transform(new Point(0, 0));
+
+            //        double x = this._windowPosition.X - p.X;
+            //        double y = this._windowPosition.Y - p.Y;
+            //        UpdateContentRootTransform(x, y);
+            //    }
+            //}
+
+            //RectangleGeometry rg = new RectangleGeometry();
+            //rg.Rect = new Rect(0, 0, this._contentPresenter.ActualWidth, this._contentPresenter.ActualHeight);
+            //this._contentPresenter.Clip = rg;
+            //this.UpdatePosition();
+        }
+
+        /// <summary>
+        /// Finds the X coordinate of a point that is defined by a line.
+        /// </summary>
+        /// <param name="p1">Starting point of the line.</param>
+        /// <param name="p2">Ending point of the line.</param>
+        /// <param name="y">Y coordinate of the point.</param>
+        /// <returns>X coordinate of the point.</returns>
+        private static double FindPositionX(Point p1, Point p2, double y)
+        {
+            if (y == p1.Y || p1.X == p2.X)
+            {
+                return p2.X;
+            }
+
+            Debug.Assert(p1.Y != p2.Y, "Unexpected equal Y coordinates");
+
+            return (((y - p1.Y) * (p1.X - p2.X)) / (p1.Y - p2.Y)) + p1.X;
+        }
+
+        /// <summary>
+        /// Finds the Y coordinate of a point that is defined by a line.
+        /// </summary>
+        /// <param name="p1">Starting point of the line.</param>
+        /// <param name="p2">Ending point of the line.</param>
+        /// <param name="x">X coordinate of the point.</param>
+        /// <returns>Y coordinate of the point.</returns>
+        private static double FindPositionY(Point p1, Point p2, double x)
+        {
+            if (p1.Y == p2.Y || x == p1.X)
+            {
+                return p2.Y;
+            }
+
+            Debug.Assert(p1.X != p2.X, "Unexpected equal X coordinates");
+
+            return (((p1.Y - p2.Y) * (x - p1.X)) / (p1.X - p2.X)) + p1.Y;
+        }
+
+        /// <summary>
+        /// Builds the visual tree for the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> control when a
+        /// new template is applied.
+        /// </summary>
+        [System.Diagnostics.CodeAnalysis.SuppressMessage("Microsoft.Maintainability", "CA1502:AvoidExcessiveComplexity", Justification = "No need to split the code into two parts.")]
+        public override void OnApplyTemplate()
+        {
+            this.UnsubscribeFromTemplatePartEvents();
+
+            base.OnApplyTemplate();
+
+            this.CloseButton = GetTemplateChild(PART_CloseButton) as ButtonBase;
+
+            if (this.CloseButton != null)
+            {
+                if (this.HasCloseButton)
+                {
+                    this.CloseButton.Visibility = Visibility.Visible;
+                }
+                else
+                {
+                    this.CloseButton.Visibility = Visibility.Collapsed;
+                }
+            }
+
+            if (this._closed != null)
+            {
+                this._closed.Completed -= new EventHandler(this.Closing_Completed);
+            }
+
+            if (this._opened != null)
+            {
+                this._opened.Completed -= new EventHandler(this.Opening_Completed);
+            }
+
+            this._root = GetTemplateChild(PART_Root) as FrameworkElement;
+            this._resizer = GetTemplateChild(PART_Resizer) as FrameworkElement;
+
+            if (this._root != null)
+            {
+                IList groups = VisualStateManager.GetVisualStateGroups(this._root);
+
+                if (groups != null)
+                {
+                    IList states = null;
+
+                    foreach (VisualStateGroup vsg in groups)
+                    {
+                        if (vsg.Name == FloatableWindow.VSMGROUP_Window)
+                        {
+                            states = vsg.States;
+                            break;
+                        }
+                    }
+
+                    if (states != null)
+                    {
+                        foreach (VisualState state in states)
+                        {
+                            if (state.Name == FloatableWindow.VSMSTATE_StateClosed)
+                            {
+                                this._closed = state.Storyboard;
+                            }
+
+                            if (state.Name == FloatableWindow.VSMSTATE_StateOpen)
+                            {
+                                this._opened = state.Storyboard;
+                            }
+                        }
+                    }
+                }
+                //TODO: Figure out why I can't wire up the event below in SubscribeToTemplatePartEvents
+                this._root.MouseLeftButtonDown += new MouseButtonEventHandler(this.ContentRoot_MouseLeftButtonDown);
+
+                if (this.ResizeMode == ResizeMode.CanResize)
+                {
+                    this._resizer.MouseLeftButtonDown += new System.Windows.Input.MouseButtonEventHandler(Resizer_MouseLeftButtonDown);
+                    this._resizer.MouseLeftButtonUp += new System.Windows.Input.MouseButtonEventHandler(Resizer_MouseLeftButtonUp);
+                    this._resizer.MouseMove += new System.Windows.Input.MouseEventHandler(Resizer_MouseMove);
+                    this._resizer.MouseEnter += new MouseEventHandler(Resizer_MouseEnter);
+                    this._resizer.MouseLeave += new MouseEventHandler(Resizer_MouseLeave);
+                }
+                else
+                {
+                    this._resizer.Opacity = 0;
+                }
+            }
+
+            this.ContentRoot = GetTemplateChild(PART_ContentRoot) as FrameworkElement;
+
+            this._chrome = GetTemplateChild(PART_Chrome) as FrameworkElement;
+
+            this.Overlay = GetTemplateChild(PART_Overlay) as Panel;
+
+            this._contentPresenter = GetTemplateChild(PART_ContentPresenter) as FrameworkElement;
+
+            this.SubscribeToTemplatePartEvents();
+            this.SubscribeToStoryBoardEvents();
+            this._desiredMargin = this.Margin;
+            this.Margin = new Thickness(0);
+
+            // Update overlay size
+            if (this.IsOpen && (this.ChildWindowPopup != null))
+            {
+                this._desiredContentHeight = this.Height;
+                this._desiredContentWidth = this.Width;
+                this.UpdateOverlaySize();
+                this.UpdateRenderTransform();
+                this.ChangeVisualState();
+            }
+        }
+
+        void Resizer_MouseLeave(object sender, MouseEventArgs e)
+        {
+            if (!this._isMouseCaptured)
+            {
+                this._resizer.Opacity = .25;
+            }
+        }
+
+        void Resizer_MouseEnter(object sender, MouseEventArgs e)
+        {
+            if (!this._isMouseCaptured)
+            {
+                this._resizer.Opacity = 1;
+            }
+        }
+
+        /// <summary>
+        /// Raises the
+        /// <see cref="E:System.Windows.Controls.FloatableWindow.Closed" /> event.
+        /// </summary>
+        /// <param name="e">The event data.</param>
+        protected virtual void OnClosed(EventArgs e)
+        {
+            EventHandler handler = this.Closed;
+
+            if (null != handler)
+            {
+                handler(this, e);
+            }
+
+            this._isOpen = false;
+            if (!_modal)
+            {
+                this.ParentLayoutRoot.Children.Remove(this);
+            }
+        }
+
+        /// <summary>
+        /// Raises the
+        /// <see cref="E:System.Windows.Controls.FloatableWindow.Closing" /> event.
+        /// </summary>
+        /// <param name="e">The event data.</param>
+        protected virtual void OnClosing(CancelEventArgs e)
+        {
+            EventHandler<CancelEventArgs> handler = this.Closing;
+
+            if (null != handler)
+            {
+                handler(this, e);
+            }
+        }
+
+        /// <summary>
+        /// Returns a
+        /// <see cref="T:System.Windows.Automation.Peers.FloatableWindowAutomationPeer" />
+        /// for use by the Silverlight automation infrastructure.
+        /// </summary>
+        /// <returns>
+        /// <see cref="T:System.Windows.Automation.Peers.FloatableWindowAutomationPeer" />
+        /// for the <see cref="T:System.Windows.Controls.FloatableWindow" /> object.
+        /// </returns>
+        protected override AutomationPeer OnCreateAutomationPeer()
+        {
+            return new FloatableWindowAutomationPeer(this);
+        }
+
+        /// <summary>
+        /// This method is called every time a
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> is displayed.
+        /// </summary>
+        protected virtual void OnOpened()
+        {
+            this.UpdatePosition();
+            this._isOpen = true;
+
+            if (this.Overlay != null)
+            {
+                this.Overlay.Opacity = this.OverlayOpacity;
+                this.Overlay.Background = this.OverlayBrush;
+            }
+
+            if (!this.Focus())
+            {
+                // If the Focus() fails it means there is no focusable element in the 
+                // FloatableWindow. In this case we set IsTabStop to true to have the keyboard functionality
+                this.IsTabStop = true;
+                this.Focus();
+            }
+        }
+
+        /// <summary>
+        /// Executed when the opening storyboard finishes.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Event args.</param>
+        private void Opening_Completed(object sender, EventArgs e)
+        {
+            if (this._opened != null)
+            {
+                this._opened.Completed -= new EventHandler(this.Opening_Completed);
+            }
+            // AutomationPeer returns "ReadyForUserInteraction" when the FloatableWindow 
+            // is open and all animations have been completed.
+            this.InteractionState = WindowInteractionState.ReadyForUserInteraction;
+            this.OnOpened();
+        }
+
+        /// <summary>
+        /// Executed when the page resizes.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Event args.</param>
+        private void Page_Resized(object sender, EventArgs e)
+        {
+            if (this.ChildWindowPopup != null)
+            {
+                this.UpdateOverlaySize();
+            }
+        }
+
+        /// <summary>
+        /// Executed when the root visual gets focus.
+        /// </summary>
+        /// <param name="sender">Sender object.</param>
+        /// <param name="e">Routed event args.</param>
+        private void RootVisual_GotFocus(object sender, RoutedEventArgs e)
+        {
+            this.Focus();
+            this.InteractionState = WindowInteractionState.ReadyForUserInteraction;
+        }
+
+        public void Show()
+        {
+            ShowWindow(false);
+        }
+
+        public void ShowDialog()
+        {
+            _verticalOffset = 0;
+            _horizontalOffset = 0;
+            ShowWindow(true);
+        }
+
+        public void Show(double horizontalOffset, double verticalOffset)
+        {
+            _horizontalOffset = horizontalOffset;
+            _verticalOffset = verticalOffset;
+            ShowWindow(false);
+        }
+
+        /// <summary>
+        /// Opens a <see cref="T:System.Windows.Controls.FloatableWindow" /> and
+        /// returns without waiting for the
+        /// <see cref="T:System.Windows.Controls.FloatableWindow" /> to close.
+        /// </summary>
+        /// <exception cref="T:System.InvalidOperationException">
+        /// The child window is already in the visual tree.
+        /// </exception>
+        internal void ShowWindow(bool isModal)
+        {
+            _modal = isModal;
+
+            // AutomationPeer returns "Running" when Show() is called
+            // but the FloatableWindow is not ready for user interaction:
+            this.InteractionState = WindowInteractionState.Running;
+
+            this.SubscribeToEvents();
+            this.SubscribeToTemplatePartEvents();
+            this.SubscribeToStoryBoardEvents();
+
+
+            // MaxHeight and MinHeight properties should not be overwritten:
+            this.MaxHeight = double.PositiveInfinity;
+            this.MaxWidth = double.PositiveInfinity;
+
+            if (_modal)
+            {
+                if (this.ChildWindowPopup == null)
+                {
+                    this.ChildWindowPopup = new Popup();
+
+                    try
+                    {
+                        this.ChildWindowPopup.Child = this;
+                    }
+                    catch (ArgumentException)
+                    {
+                        // If the FloatableWindow is already in the visualtree, we cannot set it to be the child of the popup
+                        // we are throwing a friendlier exception for this case:
+                        this.InteractionState = WindowInteractionState.NotResponding;
+                        throw new InvalidOperationException(Properties.Resources.ChildWindow_InvalidOperation);
+                    }
+                }
+
+                if (this.ChildWindowPopup != null && Application.Current.RootVisual != null)
+                {
+                    this.ChildWindowPopup.IsOpen = true;
+
+                    this.ChildWindowPopup.HorizontalOffset = _horizontalOffset;
+                    this.ChildWindowPopup.VerticalOffset = _verticalOffset;
+
+                    // while the FloatableWindow is open, the DialogResult is always NULL:
+                    this._dialogresult = null;
+                }
+            }
+            else
+            {
+                if (ParentLayoutRoot != null)
+                {
+                    this.SetValue(Canvas.TopProperty, _verticalOffset);
+                    this.SetValue(Canvas.LeftProperty, _horizontalOffset);
+                    this.ParentLayoutRoot.Children.Add(this);
+                    this.BringToFront();
+                }
+                else
+                {
+                    throw new ArgumentNullException("ParentLayoutRoot", "You need to specify a root Panel element to add the window elements to.");
+                }
+            }
+
+            // disable the underlying UI
+            if (RootVisual != null && _modal)
+            {
+                RootVisual.IsEnabled = false;
+            }
+
+            // if the template is already loaded, display loading visuals animation
+            if (this.ContentRoot == null)
+            {
+                this.Loaded += (s, args) =>
+                {
+                    if (this.ContentRoot != null)
+                    {
+                        this.ChangeVisualState();
+                    }
+                };
+            }
+            else
+            {
+                this.ChangeVisualState();
+            } 
+        }
+
+        /// <summary>
+        /// Subscribes to events when the FloatableWindow is opened.
+        /// </summary>
+        private void SubscribeToEvents()
+        {
+            if (Application.Current != null && Application.Current.Host != null && Application.Current.Host.Content != null)
+            {
+                Application.Current.Exit += new EventHandler(this.Application_Exit);
+                Application.Current.Host.Content.Resized += new EventHandler(this.Page_Resized);
+            }
+
+            this.KeyDown += new KeyEventHandler(this.ChildWindow_KeyDown);
+            if (_modal)
+            {
+                this.LostFocus += new RoutedEventHandler(this.ChildWindow_LostFocus);
+            }
+            this.SizeChanged += new SizeChangedEventHandler(this.ChildWindow_SizeChanged);
+        }
+
+        /// <summary>
+        /// Subscribes to events that are on the storyboards. 
+        /// Unsubscribing from these events happen in the event handlers individually.
+        /// </summary>
+        private void SubscribeToStoryBoardEvents()
+        {
+            if (this._closed != null)
+            {
+                this._closed.Completed += new EventHandler(this.Closing_Completed);
+            }
+
+            if (this._opened != null)
+            {
+                this._opened.Completed += new EventHandler(this.Opening_Completed);
+            }
+        }
+
+        /// <summary>
+        /// Subscribes to events on the template parts.
+        /// </summary>
+        private void SubscribeToTemplatePartEvents()
+        {
+            if (this.CloseButton != null)
+            {
+                this.CloseButton.Click += new RoutedEventHandler(this.CloseButton_Click);
+            }
+
+            if (this._chrome != null)
+            {
+                this._chrome.MouseLeftButtonDown += new MouseButtonEventHandler(this.Chrome_MouseLeftButtonDown);
+                this._chrome.MouseLeftButtonUp += new MouseButtonEventHandler(this.Chrome_MouseLeftButtonUp);
+                this._chrome.MouseMove += new MouseEventHandler(this.Chrome_MouseMove);
+            }
+
+            if (this._contentPresenter != null)
+            {
+                this._contentPresenter.SizeChanged += new SizeChangedEventHandler(this.ContentPresenter_SizeChanged);
+            }
+        }
+
+        /// <summary>
+        /// Unsubscribe from events when the FloatableWindow is closed.
+        /// </summary>
+        private void UnSubscribeFromEvents()
+        {
+            if (Application.Current != null && Application.Current.Host != null && Application.Current.Host.Content != null)
+            {
+                Application.Current.Exit -= new EventHandler(this.Application_Exit);
+                Application.Current.Host.Content.Resized -= new EventHandler(this.Page_Resized);
+            }
+
+            this.KeyDown -= new KeyEventHandler(this.ChildWindow_KeyDown);
+            if (_modal)
+            {
+                this.LostFocus -= new RoutedEventHandler(this.ChildWindow_LostFocus);
+            }
+            this.SizeChanged -= new SizeChangedEventHandler(this.ChildWindow_SizeChanged);
+        }
+
+        /// <summary>
+        /// Unsubscribe from the events that are subscribed on the template part elements.
+        /// </summary>
+        private void UnsubscribeFromTemplatePartEvents()
+        {
+            if (this.CloseButton != null)
+            {
+                this.CloseButton.Click -= new RoutedEventHandler(this.CloseButton_Click);
+            }
+
+            if (this._chrome != null)
+            {
+                this._chrome.MouseLeftButtonDown -= new MouseButtonEventHandler(this.Chrome_MouseLeftButtonDown);
+                this._chrome.MouseLeftButtonUp -= new MouseButtonEventHandler(this.Chrome_MouseLeftButtonUp);
+                this._chrome.MouseMove -= new MouseEventHandler(this.Chrome_MouseMove);
+            }
+
+            if (this._contentPresenter != null)
+            {
+                this._contentPresenter.SizeChanged -= new SizeChangedEventHandler(this.ContentPresenter_SizeChanged);
+            }
+        }
+
+        /// <summary>
+        /// Updates the size of the overlay of the window.
+        /// </summary>
+        private void UpdateOverlaySize()
+        {
+            if (_modal)
+            {
+                if (this.Overlay != null && Application.Current != null && Application.Current.Host != null && Application.Current.Host.Content != null)
+                {
+                    this.Height = Application.Current.Host.Content.ActualHeight;
+                    this.Width = Application.Current.Host.Content.ActualWidth;
+                    this.Overlay.Height = this.Height;
+                    this.Overlay.Width = this.Width;
+
+                    if (this.ContentRoot != null)
+                    {
+                        this.ContentRoot.Width = this._desiredContentWidth;
+                        this.ContentRoot.Height = this._desiredContentHeight;
+                        this.ContentRoot.Margin = this._desiredMargin;
+                    }
+                }
+            }
+            else
+            {
+                if (this.Overlay != null)
+                {
+                    this.Overlay.Visibility = Visibility.Collapsed;
+                }
+            }
+        }
+
+        /// <summary>
+        /// Updates the position of the window in case the size of the content changes.
+        /// This allows FloatableWindow only scale from right and bottom.
+        /// </summary>
+        private void UpdatePosition()
+        {
+            if (this.ContentRoot != null && Application.Current != null && Application.Current.RootVisual != null)
+            {
+                GeneralTransform gt = this.ContentRoot.TransformToVisual(Application.Current.RootVisual);
+
+                if (gt != null)
+                {
+                    this._windowPosition = gt.Transform(new Point(0, 0));
+                }
+            }
+        }
+
+        /// <summary>
+        /// Updates the render transform applied on the overlay.
+        /// </summary>
+        private void UpdateRenderTransform()
+        {
+            if (this._root != null && this.ContentRoot != null)
+            {
+                // The Overlay part should not be affected by the render transform applied on the
+                // FloatableWindow. In order to achieve this, we adjust an identity matrix to represent
+                // the _root's transformation, invert it, apply the inverted matrix on the _root, so that 
+                // nothing is affected by the rendertransform, and apply the original transform only on the Content
+                GeneralTransform gt = this._root.TransformToVisual(null);
+                if (gt != null)
+                {
+                    Point p10 = new Point(1, 0);
+                    Point p01 = new Point(0, 1);
+                    Point transform10 = gt.Transform(p10);
+                    Point transform01 = gt.Transform(p01);
+
+                    Matrix transformToRootMatrix = Matrix.Identity;
+                    transformToRootMatrix.M11 = transform10.X;
+                    transformToRootMatrix.M12 = transform10.Y;
+                    transformToRootMatrix.M21 = transform01.X;
+                    transformToRootMatrix.M22 = transform01.Y;
+
+                    MatrixTransform original = new MatrixTransform();
+                    original.Matrix = transformToRootMatrix;
+
+                    InvertMatrix(ref transformToRootMatrix);
+                    MatrixTransform mt = new MatrixTransform();
+                    mt.Matrix = transformToRootMatrix;
+
+                    TransformGroup tg = this._root.RenderTransform as TransformGroup;
+
+                    if (tg != null)
+                    {
+                        tg.Children.Add(mt);
+                    }
+                    else
+                    {
+                        this._root.RenderTransform = mt;
+                    }
+
+                    tg = this.ContentRoot.RenderTransform as TransformGroup;
+
+                    if (tg != null)
+                    {
+                        tg.Children.Add(original);
+                    }
+                    else
+                    {
+                        this.ContentRoot.RenderTransform = original;
+                    }
+                }
+            }
+        }
+
+        /// <summary>
+        /// Updates the ContentRootTranslateTransform.
+        /// </summary>
+        /// <param name="X">X coordinate of the transform.</param>
+        /// <param name="Y">Y coordinate of the transform.</param>
+        private void UpdateContentRootTransform(double X, double Y)
+        {
+            if (this._contentRootTransform == null)
+            {
+                this._contentRootTransform = new TranslateTransform();
+                this._contentRootTransform.X = X;
+                this._contentRootTransform.Y = Y;
+
+                TransformGroup transformGroup = this.ContentRoot.RenderTransform as TransformGroup;
+
+                if (transformGroup == null)
+                {
+                    transformGroup = new TransformGroup();
+                    transformGroup.Children.Add(this.ContentRoot.RenderTransform);
+                }
+                transformGroup.Children.Add(this._contentRootTransform);
+                this.ContentRoot.RenderTransform = transformGroup;
+            }
+            else
+            {
+                this._contentRootTransform.X += X;
+                this._contentRootTransform.Y += Y;
+            }
+        }
+
+        private void Resizer_MouseLeftButtonDown(object sender, System.Windows.Input.MouseButtonEventArgs e)
+        {
+            this._resizer.CaptureMouse();
+            this._isMouseCaptured = true;
+            this._clickPoint = e.GetPosition(sender as UIElement);
+
+#if DEBUG
+            this.Title = string.Format("X:{0},Y:{1}", this._clickPoint.X.ToString(), this._clickPoint.Y.ToString());
+#endif
+        }
+
+        private void Resizer_MouseLeftButtonUp(object sender, System.Windows.Input.MouseButtonEventArgs e)
+        {
+            this._resizer.ReleaseMouseCapture();
+            this._isMouseCaptured = false;
+            this._resizer.Opacity = 0.25;
+        }
+
+        private void Resizer_MouseMove(object sender, System.Windows.Input.MouseEventArgs e)
+        {
+            if (this._isMouseCaptured && this.ContentRoot != null)
+            {
+                // If the child window is dragged out of the page, return
+                if (Application.Current != null && Application.Current.RootVisual != null &&
+                    (e.GetPosition(Application.Current.RootVisual).X < 0 || e.GetPosition(Application.Current.RootVisual).Y < 0))
+                {
+                    return;
+                }
+
+#if DEBUG
+                this.Title = string.Format("X:{0},Y:{1}", this._clickPoint.X.ToString(), this._clickPoint.Y.ToString());
+#endif
+
+                Point p = e.GetPosition(this.ContentRoot);
+
+                if ((p.X > this._clickPoint.X) && (p.Y > this._clickPoint.Y))
+                {
+                    this.Width = (double)(p.X - (12 - this._clickPoint.X));
+                    this.Height = (double)(p.Y - (12 - this._clickPoint.Y));
+                }
+            }
+        }
+
+        private Storyboard GetVisualStateStoryboard(string visualStateGroupName, string visualStateName)
+        {
+            foreach (VisualStateGroup g in VisualStateManager.GetVisualStateGroups((FrameworkElement)this.ContentRoot.Parent))
+            {
+                if (g.Name != visualStateGroupName) continue;
+                foreach (VisualState s in g.States)
+                {
+                    if (s.Name != visualStateName) continue;
+                    return s.Storyboard;
+                }
+            }
+            return null;
+        }
+
+        #endregion Methods
+    }
+}
\ No newline at end of file