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arthur-os/bin/omarchy-brightness-display-apple

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#!/bin/bash
# omarchy:summary=Show or adjust Apple Studio Display and Apple XDR Display brightness using asdcontrol.
# omarchy:args=[--no-osd] [+N%|N%-|N%]
# omarchy:examples=omarchy brightness display apple | omarchy brightness display apple +5% | omarchy brightness display apple --no-osd 50%
device_cache="${XDG_RUNTIME_DIR:-/tmp}/omarchy-brightness-display-apple.device"
no_osd=0
args=()
for arg in "$@"; do
if [[ $arg == "--no-osd" ]]; then
no_osd=1
else
args+=("$arg")
fi
done
set -- "${args[@]}"
detect_apple_display_device() {
local devices=()
local path=""
for path in /dev/usb/hiddev* /dev/hiddev*; do
[[ -e $path ]] && devices+=("$path")
done
(( ${#devices[@]} > 0 )) || return 1
sudo asdcontrol --detect "${devices[@]}" 2>/dev/null | awk -F: '/^\/dev\/(usb\/)?hiddev/{ print $1; exit }'
}
find_apple_display_device() {
local cached=""
local device=""
if [[ -r $device_cache ]]; then
read -r cached <"$device_cache" || true
if [[ -n $cached && -e $cached ]]; then
printf '%s\n' "$cached"
return 0
fi
fi
device="$(detect_apple_display_device)" || return 1
[[ -n $device ]] || return 1
printf '%s\n' "$device" >"$device_cache"
printf '%s\n' "$device"
}
current_brightness() {
local device="$1"
sudo asdcontrol "$device" 2>/dev/null | awk -F= '
/BRIGHTNESS=/ {
print int($2 * 100 / 60000)
found = 1
}
END { exit !found }
'
}
retry_with_fresh_device() {
rm -f "$device_cache"
device="$(find_apple_display_device || true)"
if [[ -z $device ]]; then
echo "No Apple Display HID device found" >&2
exit 1
fi
}
device="$(find_apple_display_device || true)"
if [[ -z $device ]]; then
echo "No Apple Display HID device found" >&2
exit 1
fi
if (( $# == 0 )); then
if current_brightness "$device"; then
exit
else
retry_with_fresh_device
current_brightness "$device"
exit
fi
fi
step="$1"
if [[ $step =~ ^([0-9]+)%-$ ]]; then
step="-${BASH_REMATCH[1]}%"
fi
if ! sudo asdcontrol "$device" -- "$step" >/dev/null; then
retry_with_fresh_device
sudo asdcontrol "$device" -- "$step" >/dev/null
fi
(( no_osd )) || omarchy-osd -i brightness -p "$(current_brightness "$device")"