add info about binding to mac specific modifier keys

[adsick]

documentation
describes modifier keys in terms of classic "Control, Alt, Shift" trinity, but mac has "Command, Option, Shift" (and Control which I don't want to use), how to deal with it? maybe add a note about it in the documentation?

I want to have Command-x bindings, not Control-x.

[the-mikedavis]

Command modifiers are not supported because they're not supported upstream in crossterm: crossterm-rs/crossterm#389

Support for command could most likely be added with a GUI but otherwise awaits that issue upstream.

[archseer]

As far as I know, Cmd usually isn't exposed at all in macOS terminals, I think you'd need to remap it inside iTerm to expose it. It would start to clash with OS-level/terminal shortcuts like Cmd+n etc

[johalun]

iTerm2 is very flexible with remapping modifier keys. ctrl is in an awkward location on macs. I always swap caps lock and ctrl in system preferences but if you don't want that I'm sure iTerm2 can help.

[groves]

Command can be exposed with Kitty's keyboard protocol. That's started being added in crossterm-rs/crossterm#691. Once that lands, I think we could build on it for additional modifiers.

[kee-oth]

Command can be exposed with Kitty's keyboard protocol. That's started being added in crossterm-rs/crossterm#691. Once that lands, I think we could build on it for additional modifiers.

@groves Just pinging that the linked PR has been merged as I am interested in this as well. Thanks!

[peredwardsson]

Also interested. Editor looks great, but using Mac + nordic keyboard makes it a little awkward.

[justaskz]

Are there any updates?

I tried to remap keys using kitty:
When Cmd+KEY is pressed, kitty sends Ctrl+KEY hex code as text. However it does not work. And there is no way to debug it.

Does anyone have any success in making Command key working?

[danillos]

@justaskz one example with Kitty that I did to save with cmd+s

# Kitty config

map cmd+S send_text all \x13

# Helix Config

[keys.normal]
'C-s' = ':w!'

\x13 = control+s you can see more here
Kitty accepts unicode too.

[the-mikedavis]

This will be closed by #6592

[justaskz]

@danillos thank you, it is working now!!

I took wrong config example from somewhere map cmd+s send_text normal,application \x13 and it did not work

[LeeeSe]

if you use alacritty，Bind cmd + s to ctrl + s and use it with helix's key bindings

~/.config/alacritty/alacritty.yaml

import = ["/Users/ls/.config/alacritty/themes/themes/tokyo-night.toml"]
live_config_reload = true

[font]
# AppleFontSmoothing = true
size = 14.0

[font.normal]
family = "JetBrainsMono Nerd Font"
style = "Regular"

[[keyboard.bindings]]
chars = "\u0013"
key = "S"
mods = "Command"

~/.config/helix/config.toml

theme = "tokyonight"

[editor]
middle-click-paste = false
auto-save = true

[editor.file-picker]
hidden = false


[editor.lsp]
display-messages = true
display-inlay-hints	= true

[editor.cursor-shape]
normal = "block"
insert = "bar"

[keys.normal]
C-s = ":w"