Re: MIME parts not saved

[Katsumi Yamaoka <yamaoka@jpl.org>]

Katsumi Yamaoka <yamaoka@jpl.org> wrote:
>> http://i-yt.info/?date=20090829#p01 (Japanese)

>> One says "To make xdg-open work with `start-process', bind
>> `process-connection-type' to nil.".  I'll try it on Fedora 19 in
>> home

> I tried it on Fedora 19 and realized there is another problem.
> That is, `mm-display-external' deletes a temporary file too early
> to let at least xdg-open work.  A temporary solution is attached.

Now xdg-open should work called by Gnus (hopefully).  Binding of
`process-connection-type' to nil was necessary for at least Fedora
(I don't know why but Cygwin doesn't need it).
The other cause of xdg-open not working was simple; xdg-open has
no sooner launched an external viewer than it finishes, whereas
Gnus deleted a temporary file (before passing it out to the viewer)
as soon as xdg-open finished.

Now a temporary file will be deleted by a timer 10 seconds after
launching xdg-open.  It means that a temporary file will be left
if you kill Emacs within 10 seconds.  Perhaps it might be better
to use `kill-emacs-hook' together or decrease the time to wait.

As for Windows or Cygwin, those temporary file and folder cannot
be deleted while a viewer is running if it is a Windows' app., so
a user may want to delete them periodically.