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@@ -1,101 +0,0 @@ -# Sway keysym - -Under the [Sway](https://swaywm.org/) Wayland compositor, we could set -set `xkb_layout` and `xkb_options` for keyboards in order to do weird -key mapping related things. Many people use `caps:ctrl_modifier` and -`caps:escape` in `xkb_options` (see -[xkeyboard-config(7)](https://man.openbsd.org/xkeyboard-config) for -other options) to make Caps Lock function as an extra Ctrl or Esc key. - -If all you want to do is do a relatively common modification like that, -chances are that `xkb_variant` and `xkb_options` already has what you -want, and you should just set that. - ------------------------------------------------------------------------- - -But if what you want isn't covered in the standard XKB files, hear my -story. I personally wanted Caps Lock to function as an additional Shift -key, which isn't covered in `xkb_options`. (`caps:shift` doesn't differ -much from normal Caps Lock, make it confusingly documented and doesn't -make the Caps Lock function as an extra Shift.) - -On X11, I would simply use `xmodmap -e "keysym Caps_Lock = Shift_L"`. -Now my Caps Lock functions as an extra Left Shift. Works just alright. - -But now that I switched to Wayland, Sway in particular, `xmodmap` for -X11 isn't going to work. What I ended up doing was the following: - -**`$HOME/.xkb/symbols/gbcustom`** - - default partial alphanumeric_keys - xkb_symbols "basic" { // leave "basic" in-tact unless you know what you're doing - include "gb" // or whatever base layout you use, most likely "us" - name[Group1] = "English (UK) Customized"; - key <CAPS> { [ Shift_L, Shift_L, Shift_L, Shift_L ] }; - }; - -Note that here, the "`key`" lines are in the form -`key <X> { [ A, B, C, D ] } ;`, where "`X`" is the keycode symbolic name -of the physical key you want to press. In my case, it is `CAPS`. Check -`/usr/share/X11/xkb/symbols/pc` and `/usr/share/X11/xkb/symbols/latin`, -or the relevant files for your keyboard configuration, to look up the -keycode symbolic name from the name you're used to. (Looking up -`Shift_L` in `symbols/pc` gets you to `LFSH`, which is what you would -use in place of "`X`". `A` is triggered when `X` is pressed alone, `B` -when it's pressd with Shift, `C` with AltGr, and `D` with both AltGr and -Shift. - -**`$HOME/.config/sway/config`** - - input "1:1:AT_Translated_Set_2_keyboard" { - xkb_layout "gbcustom" - } - -Of course, replace "`1:1:AT_Translated_Set_2_keyboard`" with your actual -keyboard identifier listed in `swaymsg -t get_inputs`. And reload Sway. - -There might be better ways to do so, but I've got this to work. For -these unusual setups, it is a bit complicated and not as straightforward -as adding a `xmondmap` line to `.xinitrc`. Hopefully things would get -better as Wayland matures. - -[This GitHub issue](https://github.com/swaywm/sway/issues/4250) and -[jman's article on -this](https://www.city17.xyz/keychron/#xkb-here-be-dragons) were -extremely helpful. Thanks to [brocellous](https://sr.ht/~brocellous) for -pointing out the solution involving custom options. - ------------------------------------------------------------------------- - -Another, potentially better method involving defining custom -`xkb_options`, propsed by brocellous: - -**`$HOME/.xkb/symbols/customsymbol`** - - // Remap caps to Shift_L - partial modifier_keys - xkb_symbols "caps_lshift" { - replace key { - type[group1] = "ONE_LEVEL", - symbols[group1] = [ Shift_L ], - actions[group1] = [ SetMods(modifiers=Shift) ] - }; - }; - -**`$HOME/.xkb/rules/evdev`** - - ! option = symbols - custom:caps_lshift = +customsymbol(caps_lshift) - - ! include %S/evdev - -**`$HOME/.config/sway/config`** - - input "1:1:AT_Translated_Set_2_keyboard" { - xkb_layout "gb" - xkb_options "custom:caps_lshift" - } - -- [Home](./) -- Runxi Yu -- <a href="./pubdom.html" rel="license">Public Domain</a> |