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nixos/options/custom/scripts/left.sh

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#! /usr/bin/env bash
# Toggle left-pawed mouse
#?? left DEVICE
# BUG: New hyprctl syntax does not support per-device getoption
# https://github.com/hyprwm/hyprlang/issues/43
# HACK: Condition based on file presence, requires execution at reload to set state
#?? exec = left
FILE="$HOME/.left"
# Set initial state
if [[ -f "$FILE" ]]; then
left=1
else
left=0
fi
# If device argument, then toggle
if (("$#" > 0)); then
left=$((1 - "$left"))
fi
# Enforce state
if (("$left")); then
hyprctl keyword "device[$1]:left_handed" true
hyprctl keyword "device[$1]:natural_scroll" true
touch "$FILE"
notify-send "> left" "Left-pawed" --urgency low
else
hyprctl keyword "device[$1]:left_handed" false
hyprctl keyword "device[$1]:natural_scroll" false
rm --force "$FILE"
notify-send "> left" "Right-pawed" --urgency low
fi