[Feature requset] River support

[Sunderland93]

https://github.com/riverwm/river

[nwg-piotr]

Basically nwg-shell and its components are for sway and Hyprland. By adding support for other window managers (such as DWL tags in nwg-panel), I know that I won't use it myself, so the option may be poorly tested and not further developed. At the moment the answer is no. Perhaps on long winter evenings.

[midirhee12]

@nwg-piotr I would be happy to maintain and test for riverwm support.

Please re-open so I can contribute.

[nwg-piotr]

@cvoges12 - sure, go ahead.

[midirhee12]

I'm going to notate all the places where sway / hyprland dependent code is taking place and start adding the riverwm equivalents.

So far I've found:

• getting the SWAYSOCK and/or HYPRLAND_INSTANCE_SIGNATURE
• getting the path of the .config directory for sway and hyprland
• creating the corresponding outputs/monitors and workspaces files
• list of active outputs (from sway tree)

I'll keep listing as I go through. I've noticed that there are some generically named functions and such that are only being used for sway. I'll refactor and rename these before I continue to ease the process. I'll send a PR regarding this change separately since it should probably be done anyways regardless if the changes for this issue get merged or not.

[nwg-piotr]

Keep in mind that I'm only going to test your changes on sway and Hyprland. River-related stuff remains your responsibility.

[midirhee12]

Yep, I'm fully aware. Right now I'm just trying to get a sense of the project and where all the compositor specific code is.