private static DragDropPreview GetDragDropPreview(IDragInfo dragInfo, UIElement visualTarget, UIElement sender)
{
var visualSource = dragInfo?.VisualSource;
if (visualSource is null)
{
return(null);
}
var hasDragDropPreview = DragDropPreview.HasDragDropPreview(dragInfo, visualTarget ?? visualSource, sender);
if (hasDragDropPreview)
{
var rootElement = TryGetRootElementFinder(sender).FindRoot(visualTarget ?? visualSource);
var preview = new DragDropPreview(rootElement, dragInfo, visualTarget ?? visualSource, sender);
if (preview.Child != null)
{
preview.IsOpen = true;
return(preview);
}
}
return(null);
}
