acpid script/trigger for disabling mouse input in tablet mode

tablet-mode

# Event file for tablet mode conversions
# Should be placed in /etc/acpi/events

event=tabletmode
action=/etc/acpi/tablet-mode.sh %e

tablet-mode.sh

#!/bin/sh
# acpid handler for Lenovo X1 Yoga (2nd Gen) tablet mode
# When the screen is completely flipped, the following trigger occurs
# video/tabletmode TBLT 0000008A 00000001

# this file should be symlink'd into the correct place as described by the event file
# to force acpid to reload rules
#   ps -ax | grep -i acpid
#   kill -SIGHUP <pid>

# very useful link: https://askubuntu.com/questions/980997/how-do-i-disable-the-touchpad-when-the-lid-is-twisted-or-closed

TRACKPOINT="TPPS/2 IBM TrackPoint"
TOUCHPAD="SynPS/2 Synaptics TouchPad"

LANG=C  # Ensure stable parsing
export DISPLAY="$(w | awk 'NF > 7 && $2 ~ /tty[0-9]+/ {print $3; exit}' 2>/dev/null)" # Get and export the current user's $DISPAY
export XAUTHORITY="/home/$(w | awk 'NF > 7 && $2 ~ /tty[0-9]+/ {print $1; exit}' 2>/dev/null)/.Xauthority" # Get and export the currentuser's $XAUTHORITY


case "$2" in
    TBLT)
        case "$4" in
            00000000)
                xinput enable "$TRACKPOINT"
                xinput enable "$TOUCHPAD"
                ;;
            00000001)
                xinput disable "$TRACKPOINT"
                xinput disable "$TOUCHPAD"
                ;;
        esac
esac