/// <summary>
/// Sets the PageRotationAnimation Attached Property for the provided DependencyObject.
/// </summary>
/// <param name="obj">The DependencyObject whose PageRotationAnimation you would like to set.</param>
/// <param name="value">The PageRotationAnimation you would like to set to the provided DependencyObject.</param>
public static void SetPageRotationAnimation(DependencyObject obj, PageRotationAnimation value)
{
if (null == obj)
{
throw new ArgumentNullException("obj");
}
obj.SetValue(PageRotationAnimationProperty, value);
}
/// <summary>
/// Gets a PageRotationAnimation property for the provided DependencyObject, creates a new one if necessary.
/// </summary>
/// <param name="obj">The DependencyObject whose PageRotationAnimation you would like to get.</param>
/// <returns>The PageRotationAnimation associated with the provided DependencyObject</returns>
public static PageRotationAnimation GetPageRotationAnimation(DependencyObject obj)
{
if (null == obj)
{
throw new ArgumentNullException("obj");
}
else
{
PageRotationAnimation animation =
(obj.GetValue(PageRotationAnimationProperty) as PageRotationAnimation) ?? new PageRotationAnimation();
obj.SetValue(PageRotationAnimationProperty, animation);
return(animation);
}
}
/// <summary>
/// Handles changes to the PageRotationAnimation DependencyProperty.
/// </summary>
/// <param name="o">DependencyObject that changed.</param>
/// <param name="e">Event data for the DependencyPropertyChangedEvent.</param>
private static void OnPageRotationAnimationChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
FrameworkElement target = o as FrameworkElement;
if (null != target)
{
PageRotationAnimation animation = e.NewValue as PageRotationAnimation;
if (null != animation)
{
animation.Target = target;
}
else
{
throw new InvalidOperationException("The content of a PageRotationService must be a PageRotationAnimation.");
}
}
else
{
throw new ArgumentNullException("o");
}
}
