Best way to register a file format plugin for an app with nautilus's mime-handler etc.

[Caolán McNamara]

On Tue, 2009-02-24 at 12:36 +0200, Nicu Buculei wrote:
> Caolán McNamara wrote:
> > So, here's the example scenario: Someone writes an extension for
> > OpenOffice.org writer which adds a file format importer and that gets
> > packaged into Fedora. Is there a way to then register the extra
> > mime-type that writer now supports if, and only if, that extension is
> > installed.
> 
> This is supposed to also work the other way: with the extension NOT 
> installed an user click on a file of that type and PackageKit pop-up, 
> ask about installing the extension, do its job, the extension is 
> installed and the file successfully opened?

Is that a question or a statement ? I mean, is that a wish-list, or is
it something which has been already implemented and is supposed to work
right now ? If it is, what's the mechanics behind PackageKit determining
the right package to provide a handler for the extension, is it .desktop
file parsing for handled mime-types ?

C.