Re: [Evolution] How to edit list of applications to open attachments

[Patrick O'Callaghan <poc usb ve>]

On Thu, 2017-06-01 at 07:40 -0400, Adam Tauno Williams wrote:
> PLEASE SEND ALL REPLIES TO THE LIST.
>
> On Wed, 2017-05-31 at 17:46 -0700, W Van Snyder wrote:
> > gvfs-mime isn't installed in Scientific Linux release 6.9
> > (Carbon).  I
> > use KDE 4.3.4. Starting from the Application Launcher Menu, I found
> > Settings -> File Associations -> video -> mp4, for example, 
> > configured it for mplayer, and clicked "Apply".  Upon restarting
> > evolution, nothing was new on the list of applications that could
> > open
> > an mp4 attachment.
> > Do I need to restart KDE too?
>
> You should not have to restart anything - but it may depend on how an
> individual application is written.
>
> > In any case, it would be helpful to have a clue in the evolution
> > guide. The more detailed the clue, the more useful it is.
>
> But it isn't Evolution that controls that - as it is not Internet
> Explorer in Windows which controls what app handles something
> downloaded.  That is determine by MIME-type to application association;
> a feature provided by the underlying environment.
>
> Take a look at xdg-mime (it should have a man page).  XDG is what lies
> beneath both KDE and GNOME [in GNOME's case you'd use gvfs-mime to call
> xdg-mime].
>
> Something like - 
>
> awilliam@beast01:~> xdg-mime query default application/pdf
> evince.desktop

gvfs-mime would still be the right app to use, even under KDE.
Evolution is a Gnome application and uses the Gnome libraries. Setting
MIME type using the KDE panel is unlikely to work for Gnome. Similarly,
under KDE one can use gnome-control-center from the Shell to get to the
Gnome settings window.

poc