nexoniarz-config-nixos/modules/scripts/brightness-ctl.sh
Nexoniarz 1f5f9795bc Add on-screen display, sidebar keybinds, function keys, gh package
- Add Osd.qml: themed top-center popup for volume/mic/brightness/media
  changes. Volume and mic react directly to Pipewire so they fire for
  any change, not just our own keybinds; brightness is notified
  explicitly (no live service exists for DDC/CI writes); media is
  driven by two playerctl --follow watchers (status + metadata) so
  track changes, pause/resume, and stop all show correctly without
  double-firing
- Add Super+Shift+Z/X to toggle the Left/RightBar sidebars, via a new
  Quickshell IpcHandler wired to the same expand/collapse logic as the
  BottomBar arrows
- Add function-key binds for volume up/down/mute, mic mute, brightness
  up/down, and media play/pause/stop/next/prev (wpctl/playerctl);
  extend brightness-ctl with relative up/down steps for both the
  backlight and DDC/CI paths
- Add gh and playerctl to packages
2026-08-30 16:08:44 +02:00

56 lines
1.9 KiB
Shell
Executable file

#!/usr/bin/env bash
# Brightness control abstraction: prefers the kernel backlight class (laptop
# panels, via brightnessctl); falls back to DDC/CI over I2C (external
# monitors, via ddcutil) when no backlight device exists. Keeps the rest of
# the config (Quickshell's brightness popup) hardware-agnostic.
set -euo pipefail
has_backlight() {
[ -n "$(ls -A /sys/class/backlight 2>/dev/null)" ]
}
case "${1:-get}" in
get)
if has_backlight; then
brightnessctl -m | cut -d, -f4 | tr -d '%'
else
ddcutil getvcp 10 --brief 2>/dev/null | awk '{print $4}'
fi
;;
set)
pct="${2:?usage: brightness-ctl set <0-100>}"
if has_backlight; then
brightnessctl set "${pct}%" > /dev/null
else
ddcutil setvcp 10 "$pct" > /dev/null
fi
;;
up|down)
# brightnessctl takes a relative step directly, but ddcutil's
# setvcp only takes an absolute value — so the DDC/CI path (this
# machine's AOC 27G2G8 has no backlight device, so it always takes
# this path) has to read the current level and clamp the step
# itself.
step="${2:-5}"
if has_backlight; then
if [ "$1" = "up" ]; then
brightnessctl set "+${step}%" > /dev/null
else
brightnessctl set "${step}%-" > /dev/null
fi
else
cur=$(ddcutil getvcp 10 --brief 2>/dev/null | awk '{print $4}')
cur="${cur:-50}"
if [ "$1" = "up" ]; then
new=$(( cur + step > 100 ? 100 : cur + step ))
else
new=$(( cur - step < 0 ? 0 : cur - step ))
fi
ddcutil setvcp 10 "$new" > /dev/null
fi
;;
*)
echo "usage: brightness-ctl [get|set <0-100>|up [step]|down [step]]" >&2
exit 1
;;
esac