private static void OnPopupContentChanged(DependencyObject o, DependencyPropertyChangedEventArgs e)
{
UIElement element = o as UIElement;
if (element == null)
{
throw new InvalidOperationException("Can't hook to events other than UI Element");
}
if (e.NewValue != null)
{
RichToolTip popup = e.NewValue as RichToolTip;
if (popup != null)
{
popup.Load(element);
}
else
{
popup = new RichToolTip(element);
Binding binding = new Binding
{
Path = new PropertyPath(PopupContentProperty),
Mode = BindingMode.OneWay,
Source = o,
};
popup.SetBinding(ContentProperty, binding);
}
SetContentTooltipWrapper(o, popup);
}
}
