add river/layout

[alex-courtis]

Similar functionality to river/window but shows layout.

Updated river output status protocol 2->4

Tested OK:

• hotplug monitor
• river output status version 2 - module does not load
• css classes
• all configuration options

[alex-courtis]

This does not initially hide the label. I did notice the same behaviour from window... any ideas?

[Alexays]

Maybe because the label isn't empty, and so ALabel::update re-show it 🤔

[alex-courtis]

It looks like there was an infrastructural issue with the builds. Can I re-run the builds?

Should I push a dummy commit to force a re-run?

[alex-courtis]

Merged master and updated to obey cpp_std=c++20

Should we update meson.build default options from c++17 to c++20?

[alex-courtis]

I'll add to the wiki after merge.

[pinpox]

@alex-courtis How do I make this work with river-luatile? Where do I have to specify the layout name?

[alex-courtis]

@alex-courtis How do I make this work with river-luatile? Where do I have to specify the layout name?

It's up to river-luatile to specify the layout name each time it pushes/commits.

The name seems to be specified here:
https://github.com/MaxVerevkin/river-luatile/blob/0ae8e1ca68417878674469def3c861a148fac867/src/main.rs#L55