Problem with snapcraft-desktop-helpers and MATE desktop

[Eloy García (PC Actual)]

Hi Didier!

Thank you very much for your help. It worked like a charm and now my snap
package containing my application works flawlesly even in MATE desktops :)

Again, THANK YOU! :D

Best,

Eloy

2016-09-19 16:20 GMT+02:00 Didier Roche <didrocks at ubuntu.com>:

> Le 19/09/2016 à 15:34, Eloy García (PC Actual) a écrit :
> > Hi all.
> >
> > I'm using snapcraft-desktop-helpers
> > (https://github.com/ubuntu/snapcraft-desktop-helpers) part for
> > providing a "bridge" for gsettings between my snapped application and
> > the host system (I'm using desktop/gtk3 part although I tried
> > desktop/gtk2 part and even desktop/glib-only). The application sets a
> > custom selected wallpaper and it is working great under GNOME 3 and
> > Unity. However, it is not working for MATE desktop.
> >
> > This is the command I execute inside the snap for Unity and GNOME 3
> > desktops:
> > gsettings set org.gnome.desktop.background picture-uri
> > file://blablabla.jpg
> >
> > And this is the command I execute for MATE desktop:
> > gsettings set org.mate.background picture-filename blablabla.jpg
> >
> > Checking the application's log I find:
> >
> > [15:17:40] AWT-EventQueue-0 ERROR LinuxWallpaperChanger:102 - No such
> > schema 'org.mate.background'
> >
> > Those commands are working fine using the native application (I mean,
> > the application directly running on the host and not installed via
> > snap package)
> >
> > Do I need to do something else to support MATE desktop or maybe it's a
> > bug for snapcraft-desktop-helpers wiki part?
> >
> > Thank you very much for your help.
>
> Hey Eloy!
>
> Actually, it's not a bug, but the way gsettings is working. You need to
> have the schema files you are writing to and/or reading from available
> to your application for gsettings validating its input/output. By
> default, you application isn't providing those I guess.
>
> You can either ship directly the xml files as part of your snap or stage
> the ubuntu package containing the schema. This is the reason why you can
> see this playpen example shipping gsettings-desktop-schemas:
> https://github.com/ubuntu/snappy-playpen/blob/master/
> ubuntukylin-icon-theme/snapcraft.yaml#L35
>
> In your ubuntu-mate case, after a quick search, it seems that you want
> to stage mate-desktop-common.
>
> Then, the desktop wrapper will do the right thing compiling them the
> first time you install your snap or upgrade it.
>
> I hope this helps!
> Cheers,
> Didier
>
>
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-- 
Eloy García Almadén
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