When we drag some file from some web page or Nautilus towards the launcher, the application that in which it can be coppied remains highlighted and others fade out.
So where is this configuration file that decides which file can be dragged to which application in the launcher?
For example, right now, only a file of some document type can be dragged to Gwoffice and some binary file or deb file cant be drag and dropped. So how do I allow suppose a deb file to be draged and droped to Gwoffice.
That was just an example... I want to know how its done in general too.