Comment 17 for bug 772445

Making the drag and drop async in Unity has some issue that IMHO needs design feedback.

Let's say we are dragging a very heavy file. To get the mime type of this file we need more than 5 seconds. Using g_file_query_info_async during this 5 seconds the ui doesn't freeze but the launcher icons will be not dimmed/prelighted. What happens if we drop this file in a launcher icon during this 5 seconds (that is before g_file_query_info_async returns the needed values?).

Should we refuse the drop or we should accept it? Please give me feedback about it.