Sway: Drop wl_shell support

[emersion]

No one uses it, it's deprecated, and we have no way to test it.

It's just an issue to track the progress of this.

[emersion]

Ref https://github.com/hdante/hello_wayland/issues/5

[Bob131]

I have to contest the notion that "no one uses it". The Wayland-EGL backend in Cogl relies on it specifically, and removal of support for it in Sway breaks anything that depends on it (and subsequently anything that uses Clutter).

[ddevault]

Nothing should be using it. It's deprecated. They should be patched.

[Bob131]

I don't disagree, but unfortunately Cogl is both a major piece of infrastructure in GNOME land and currently on life support.

Regardless of whether it should or shouldn't be, wl_shell is still very much in use.

[aparcar]

Am I right that this issue stop the mail client Evolution from running?

Failed to initialize gtk+: Unable to initialize the Clutter backend: no available drivers found.

[emersion]

Evolution works for me. Do you have an old version of Evolution?

[Sunderland93]

Is wl_shell usefull on non-desktop systems?

[ddevault]

No. wl_shell was not dropped because it is not useful, but because it is broken. A new protocol should be written for non-desktop systems if xdg-shell is not a good fit.