[Launcher] More indicators for where applications are

[donovanglover]

Is your feature request related to a problem? Please describe. Would be cool if there was a way to differentiate applications on the same workspace from applications on different workspaces.

Describe the solution you'd like

• CSS class for applications on the current monitor
• CSS class for applications on the current workspace
• CSS class for applications in special workspaces
• CSS classes for applications in any named workspace

Describe alternatives you've considered Per-window indicators instead of per-application, although this adds complexity.

[JakeStanger]

I can see the use-case but my initial thoughts are that this is going to be too complex.

The issue I see here is that the launcher module does not currently have any idea of workspaces. Under the hood it uses wlr_foreign_toplevel, and wayland/wlroots currently lacks workspace support.

This would therefore require tracking all workspaces and windows via the compositor's IPC, and then cross-referencing that with Wayland. Apart from the added complexity, this would box the module in to only work on Sway/Hyprland. I suspect the changes would be complex enough that it would be hard to stick them behind a flag too, so you couldn't switch it off and use on other compositors.