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feat(gs): Bind a push-to-talk key

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Bind a key, which I've located at the top-left of my right keyboard, to
a momentary push-to-talk by muting and unmuting my pulseaudio source
using xbindkeys. I had been putting this off for a while because i3
doesn't support binding different commands to keyup than to keydown
events, but the xbindkeys support appears to have solved that reasonably
well, plus it's got Scheme in it so that's cool.

If there's demand for it I'll gladly expose this as a reusable,
configurable home-manager module outside my users dir in the depot.

Change-Id: Ie591c93037dbdac364d5d8a718d99edb70780789
Reviewed-on: https://cl.tvl.fyi/c/depot/+/1975
Tested-by: BuildkiteCI
Reviewed-by: glittershark <grfn@gws.fyi>
This commit is contained in:
Griffin Smith 2020-09-12 15:14:16 -04:00 • committed by glittershark
parent 65967bbbb1
commit 6f2094c146
3 changed files with 46 additions and 1 deletions
Download patch file Download diff file Expand all files Collapse all files

2
users/glittershark/keyboard/keymap.c
View file

@ -37,7 +37,7 @@ const uint16_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
KC_LBRACKET,
GUI_T(KC_NO), LSFT_T(KC_BSPACE), KC_COLN,
KC_RIGHT, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS,
KC_MY_COMPUTER, KC_6, KC_7, KC_8, KC_9, KC_0, KC_MINUS,
KC_RALT, KC_Y, KC_U, KC_I, KC_O, KC_P, KC_BSLASH,
KC_H, KC_J, KC_K, KC_L, LT(2,KC_SCOLON), LT(1,KC_QUOTE),
KC_MINUS, KC_N, KC_M, KC_COMMA, KC_DOT, CTL_T(KC_SLASH), KC_RSFT,

1
users/glittershark/system/home/machines/chupacabra.nix
View file

@ -11,6 +11,7 @@ in {
../modules/games.nix
../modules/rtlsdr.nix
../modules/urbint.nix
../modules/ptt.nix
];
# for when hacking

44
users/glittershark/system/home/modules/ptt.nix Normal file
View file

@ -0,0 +1,44 @@
{ config, lib, pkgs, ... }:
let
pttKeycode = "152";
sourceID = "3";
mute = pkgs.writeShellScript "mute-mic" ''
xset -r ${pttKeycode}
${pkgs.pulseaudio}/bin/pactl set-source-mute ${sourceID} 1
'';
unmute = pkgs.writeShellScript "unmute-mic" ''
xset -r ${pttKeycode}
${pkgs.pulseaudio}/bin/pactl set-source-mute ${sourceID} 0
'';
in
{
home.packages = with pkgs; [
xbindkeys
];
home.file.".xbindkeysrc.scm".text = ''
(xbindkey '("c:${pttKeycode}") "${unmute}")
(xbindkey '(release "c:${pttKeycode}") "${mute}")
'';
systemd.user.services."xbindkeys" = {
Unit = {
Description = "Keybind daemon for push-to-talk";
After = [ "graphical-session-pre.target" ];
PartOf = [ "graphical-session.target" ];
};
Install = { WantedBy = [ "graphical-session.target" ]; };
Service = {
ExecStart = "${pkgs.xbindkeys}/bin/xbindkeys -n -v";
};
};
}