Re: Drag and drop patch for X, please review.

[Jan D.]

> I'd suggest:
>
>   (1) Make the alist entry be one of (DND-TYPE DROP-FUN TEST-FUN) or
>       (DND-TYPE . DROP-FUN) with TEST-FUN being a test function that 
> accepts
>       the same args as DROP-FUN.  Putting the TEST-FUN last makes it 
> easier
>       to omit.

I forgot to mention, it is not possible to use the same arguments.  We
can not read the data to be dropped before we have determined which type
to use, so the data is not available to a TEST-FUN.

        Jan D.