Add "call" category to notification spec

[Guido Günther]

Hi,
On Sun, Mar 10, 2024 at 12:21:46PM -0600, Jared Toomey wrote:
> Hello all,
> 
> I would like to start a discussion for adding a "call" category and
> relevant subcategories to the freedesktop notification-spec:
> (specifications.freedesktop.org/notification-spec/latest/ar01s06.html).

I suggested something like that a while back:

https://gitlab.freedesktop.org/xdg/xdg-specs/-/merge_requests/50

Cheers,
 -- Guido

> 
> There's no appropriate standard category for an incoming call. 
> The mobile Wayland shell Phosh calls `feedbackd` to trigger haptic
> feedback and play notification sounds depending on the current profile.
> It checks the notification category to trigger the correct feedback.
> 
> The XMPP client Dino uses generic category "im" for calls, which is not
> in Phosh's hardcoded list of categories that trigger feedback.
> As a result, there is no sound or vibration for incoming calls.
> 
> Tweaking Phosh to trigger `phone-incoming-call` feedback for the 
> "im" category allows Dino to trigger the ringtone and vibration.
> This is just a hack; any other apps using the "im" category more
> appropriately would trigger a full ringtone instead of a short alert.
> 
> I'd imagine many other apps could take advantage of a calls category.
> It is an easy way to integrate feedbackd on mobile Linux.
> 
> GNOME has made "x-gnome.call.unanswered" for missed calls, though I'm
> not sure what the logic there is; seems "im" would suit that type of
> notification. It may be worth standardizing as well I suppose.
> 
> Kind regards,
> 
> Jared Toomey
>