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| author | Runxi Yu <me@runxiyu.org> | 2024-05-04 11:50:12 +0800 |
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| committer | Runxi Yu <me@runxiyu.org> | 2024-05-04 11:50:12 +0800 |
| commit | f7a54e5907fde4408f4984ec2ddd0ffe62204d7d (patch) | |
| tree | 6a7fee3285121ad6a487807122e5f64a9dc9e4ec /sway-keysym.html | |
| parent | 75637c555e5cd6b96687ad79e78883c94df28bc0 (diff) | |
| download | www-f7a54e5907fde4408f4984ec2ddd0ffe62204d7d.tar.gz | |
A multitude of migration-related changes
Diffstat (limited to 'sway-keysym.html')
| -rw-r--r-- | sway-keysym.html | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/sway-keysym.html b/sway-keysym.html new file mode 100644 index 0000000..558a247 --- /dev/null +++ b/sway-keysym.html @@ -0,0 +1,92 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> +<html xmlns="http://www.w3.org/1999/xhtml" lang="en"> + <head> + <title>Sway keysym</title> + <link rel="stylesheet" href="/style.css" /> + <meta name="viewport" content="width=device-width, initial-scale=1.0" /> + <link rel="shortcut icon" href="/favicon.ico" type="image/x-icon" /> + <meta charset="utf-8" /> + </head> + <body> + <h1>Sway keysym</h1> + + <p> + Under the <a href="https://swaywm.org/">Sway</a> Wayland compositor, we could set set <code>xkb_layout</code> and <code>xkb_options</code> for keyboards in order to do weird key mapping related things. Many people use <code>caps:ctrl_modifier</code> and <code>caps:escape</code> in <code>xkb_options</code> (see <a href="https://man.openbsd.org/xkeyboard-config">xkeyboard-config(7)</a> for other options) to make Caps Lock function as an extra Ctrl or Esc key. + </p> + <p> + If all you want to do is do a relatively common modification like that, chances are that <code>xkb_variant</code> and <code>xkb_options</code> already has what you want, and you should just set that. + </p> + <hr /> + <p> + 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 <code>xkb_options</code>. (<code>caps:shift</code> doesn't differ much from normal Caps Lock, make it confusingly documented and doesn't make the Caps Lock function as an extra Shift.) + </p> + <p> + On X11, I would simply use <code>xmodmap -e "keysym Caps_Lock = Shift_L"</code>. Now my Caps Lock functions as an extra Left Shift. Works just alright. + </p> + <p> + But now that I switched to Wayland, Sway in particular, <code>xmodmap</code> for X11 isn't going to work. What I ended up doing was the following: + </p> + <p> + <b><code>$HOME/.xkb/symbols/gbcustom</code></b> + </p> +<pre>default partial alphanumeric_keys +xkb_symbols "basic" { // leave "basic" in-tact unless you know what you're doing + include "gb" // or whatever base layout you use, most likely "us" + name[Group1] = "English (UK) Customized"; + key <CAPS> { [ Shift_L, Shift_L, Shift_L, Shift_L ] }; +};</pre> + <p> + Note that here, the "<code>key</code>" lines are in the form <code>key <X> { [ A, B, C, D ] } ;</code>, where "<code>X</code>" is the keycode symbolic name of the physical key you want to press. In my case, it is <code>CAPS</code>. Check <code>/usr/share/X11/xkb/symbols/pc</code> and <code>/usr/share/X11/xkb/symbols/latin</code>, or the relevant files for your keyboard configuration, to look up the keycode symbolic name from the name you're used to. (Looking up <code>Shift_L</code> in <code>symbols/pc</code> gets you to <code>LFSH</code>, which is what you would use in place of "<code>X</code>". <code>A</code> is triggered when <code>X</code> is pressed alone, <code>B</code> when it's pressd with Shift, <code>C</code> with AltGr, and <code>D</code> with both AltGr and Shift. + </p> + <p> + <b><code>$HOME/.config/sway/config</code></b> + </p> +<pre>input "1:1:AT_Translated_Set_2_keyboard" { + xkb_layout "gbcustom" +}</pre> + <p> + Of course, replace "<code>1:1:AT_Translated_Set_2_keyboard</code>" with your actual keyboard identifier listed in <code>swaymsg -t get_inputs</code>. And reload Sway. + </p> + <p> + 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 <code>xmondmap</code> line to <code>.xinitrc</code>. Hopefully things would get better as Wayland matures. + </p> + <p> + <a href="https://github.com/swaywm/sway/issues/4250">This GitHub issue</a> and <a href="https://www.city17.xyz/keychron/#xkb-here-be-dragons">jman's article on this</a> were extremely helpful. Thanks to <a href="https://sr.ht/~brocellous">brocellous</a> for pointing out the solution involving custom options. + </p> + <hr /> + <p> + Another, potentially better method involving defining custom <code>xkb_options</code>, propsed by brocellous: + </p> + <p> + <b><code>$HOME/.xkb/symbols/customsymbol</code></b> + </p> +<pre>// Remap caps to Shift_L +partial modifier_keys +xkb_symbols "caps_lshift" { + replace key <CAPS> { + type[group1] = "ONE_LEVEL", + symbols[group1] = [ Shift_L ], + actions[group1] = [ SetMods(modifiers=Shift) ] + }; +};</pre> + <p> + <b><code>$HOME/.xkb/rules/evdev</code></b> + </p> +<pre>! option = symbols + custom:caps_lshift = +customsymbol(caps_lshift) + +! include %S/evdev</pre> + <p> + <b><code>$HOME/.config/sway/config</code></b> + </p> +<pre>input "1:1:AT_Translated_Set_2_keyboard" { + xkb_layout "gb" + xkb_options "custom:caps_lshift" +}</pre> + <div id="footer"> + <hr /> + <p><a href="/">Runxi Yu's Website</a></p> + + </div> + </body> +</html> |