How to switch keyboard layout with hyprctl _fast_?

[MahouShoujoMivutilde]

Usecase

I wanted to make an autocommand for my nvim config to switch to us keyboard layout when exiting insert mode (for nvim's bindings to work properly), and switch back to whatever layout I was using when entering insert mode again.

(I am aware of vim.o.langmap, it's not perfect, and it's much simpler to just switch layouts).

Hyprctl

So far I see that I can switch layouts by basically redefining them with:

hyprctl keyword input:kb_layout us

You can even pass multiple layouts in different order to switch to the needed (first), while keeping the ability to toggle between them without hyprctl.

But the problem is - it's kind of slow:

❯ hyperfine "hyprctl keyword input:kb_layout us"
Benchmark 1: hyprctl keyword input:kb_layout us
  Time (mean ± σ):      41.5 ms ±   6.6 ms    [User: 0.6 ms, System: 0.7 ms]
  Range (min … max):    35.0 ms …  73.4 ms    38 runs
 

But the actual proper layout switching (without redefining them, like above, the one like when you press right alt when kb_options = grp:toggle is defined) - it's pretty fast, as far as I can tell, I don't feel any input lag with it.

Question

So, basically, my question is this:

Is there anything like sway's

swaymsg input type:keyboard xkb_switch_layout <next|prev|index>

?

From the man page:

input <identifier> xkb_switch_layout <index>|next|prev
Changes the active keyboard layout to counting from zero or to next or previous layout on the list. If there is no next or previous layout, this command hops to the other end of the list.
This can be used when multiple layouts are configured with xkb_layout. A list of layouts you can switch between can be obtained with swaymsg -t get_inputs.

https://man.archlinux.org/man/sway-input.5.en

[vaxerski]

nope. //2short

If you need absolute speed try using the xkb grp:toggles

[MahouShoujoMivutilde]

*sad modal editor noises*

[MahouShoujoMivutilde]

I use one already to switch layouts manually, but how do I trigger it with hyprctl?

[vaxerski]

u cant

[vaxerski]

reposting for whoever will read this in the future, see 79adba5 and #1163