Lenovo Yoga X1 tablet mode toggle

_etc_acpi_events_toggle-tablet-mode

event=ibm/hotkey LEN0068:00 00000080 000060c0
action=/etc/acpi/toggle-tablet-mode.sh

_etc_acpi_toggle-tablet-mode.sh

#!/bin/bash

TABLET_MODE_DISABLED_INPUTS=(
  'SynPS/2 Synaptics TouchPad'
  'TPPS/2 IBM TrackPoint'
)

TABLET_MODE_ROTATE_INPUTS=(
  'Wacom Co.,Ltd. Pen and multitouch sensor Finger touch'
  'Wacom Co.,Ltd. Pen and multitouch sensor Pen stylus'
  'Wacom Co.,Ltd. Pen and multitouch sensor Pen eraser'
)

TABLET_MODE_ROTATE_DISPLAY='eDP1'

function current_mode() {
  MODE="$(/usr/bin/xrandr --prop | /bin/grep -e '^eDP1 connected ')"
  case "$MODE" in
    'eDP1 connected (normal left inverted right x axis y axis)'|'eDP1 connected 2560x1440+0+0 (normal left inverted right x axis y axis) 310mm x 170mm')
      echo -n regular
      ;;
    'eDP1 connected left (normal left inverted right x axis y axis)'|'eDP1 connected 1440x2560+0+0 left (normal left inverted right x axis y axis) 310mm x 170mm')
      echo -n tablet
      ;;
  esac
}

function for_each_display() {
  for DISPLAY in $(/bin/ls /tmp/.X11-unix/ | /usr/bin/cut -c2-)
  do
    export DISPLAY=":$DISPLAY"
    for XAUTHORITY in $(/bin/ls /home/*/.Xauthority)
    do
      export XAUTHORITY="$XAUTHORITY"
      eval "${@}"
    done
  done
}

function to_tablet_mode() {
  for INPUT in "${TABLET_MODE_DISABLED_INPUTS[@]}"
  do
    /usr/bin/xinput disable "$INPUT"
  done
  /usr/bin/xrandr --output "$TABLET_MODE_ROTATE_DISPLAY" --rotation left
  for INPUT in "${TABLET_MODE_ROTATE_INPUTS[@]}"
  do
    /usr/bin/xinput set-prop "$INPUT" "Coordinate Transformation Matrix" 0 -1 1 1 0 0 0 0 1
  done
  onboard &
}

function to_regular_mode() {
  for INPUT in "${TABLET_MODE_DISABLED_INPUTS[@]}"
  do
    /usr/bin/xinput enable "$INPUT"
  done
  /usr/bin/xrandr --output "$TABLET_MODE_ROTATE_DISPLAY" --rotation normal
  for INPUT in "${TABLET_MODE_ROTATE_INPUTS[@]}"
  do
    /usr/bin/xinput set-prop "$INPUT" "Coordinate Transformation Matrix" 1 0 0 0 1 0 0 0 1
  done
  killall onboard
}

function toggle() {
  case "$(current_mode)" in
    regular)
      to_tablet_mode
      ;;
    tablet)
      to_regular_mode
      ;;
  esac
}

for_each_display toggle