/// <summary>
/// Walks the visual tree to determine if the currently focused element is contained within
/// a parent DependencyObject. The FocusManager's GetFocusedElement method is used to determine
/// the currently focused element, which is updated synchronously.
/// </summary>
/// <param name="element">Parent DependencyObject</param>
/// <param name="uiElement">Parent UIElement. Used to query the element's XamlRoot.</param>
/// <returns>True if the currently focused element is within the visual tree of the parent</returns>
internal static bool ContainsFocusedElement(this DependencyObject element, UIElement uiElement)
{
return((element == null) ? false : element.ContainsChild(GetFocusedElement(uiElement) as DependencyObject));
}
/// <summary>
/// Walks the visual tree to determine if the currently focused element is contained within
/// a parent DependencyObject. The FocusManager's GetFocusedElement method is used to determine
/// the currently focused element, which is updated synchronously.
/// </summary>
/// <param name="element">Parent DependencyObject</param>
/// <returns>True if the currently focused element is within the visual tree of the parent</returns>
internal static bool ContainsFocusedElement(this DependencyObject element)
{
return((element == null) ? false : element.ContainsChild(FocusManager.GetFocusedElement() as DependencyObject));
}
