private static object CoercePosition(DependencyObject d, object value)
{
PositionalViewportUIContainer owner = (PositionalViewportUIContainer)d;
if (owner.positionCoerceCallbacks.Count > 0)
{
Point position = (Point)value;
foreach (var callback in owner.positionCoerceCallbacks)
{
position = callback(owner, position);
}
value = position;
}
return(value);
}
private static void OnPositionChanged(DependencyObject d, DependencyPropertyChangedEventArgs e)
{
PositionalViewportUIContainer container = (PositionalViewportUIContainer)d;
container.OnPositionChanged(e);
}