Re: dired-mouse-drag-files

[Eli Zaretskii]

> From: Po Lu <luangruo@yahoo.com>
> Cc: emacs-devel@gnu.org
> Date: Fri, 25 Mar 2022 22:06:54 +0800
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > This feature is not universally available, but is doc string doesn't
> > say so (the manual does).
> >
> > Moreover, setting the variable non-nil unconditionally shows a tooltip
> > on file names in Dired buffers saying that the user can drag the file
> > to another program, but that is only so on X; on other platforms it's
> > a misleading tooltip.
> >
> > As an aside, changing the value of the variable doesn't affect the
> > Dired buffers that already exist, only those created afterwards, which
> > I think is not the best UX.
> >
> > Can you please fix these issues?
> 
> I will work on them ASAP, tho the idea is to have it universally
> available by the time Emacs 29 is released.  (If nobody volunteers in a
> week, I will try to find the time to implement it on NS.)

At least for MS-Windows, I don't think this is a feasible goal, though
I'd be happy to be proven wrong.  I think we only support dragging
file names there, and only _into_ Emacs.

So some systems will probably never support this.