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#!/bin/sh
### TODO: These should be automatically identified
touchpad='PS/2 Synaptics TouchPad'
touchdev='SYNAPTICS Synaptics Touch Digitizer V04'
# Global variables
CURRENT='normal'
GRAV=$(echo 7.0 / $(head -n1 /sys/bus/iio/devices/iio:device*/in_accel_scale) | bc)
rotatetouch() {
# For some reason, xrandr causes the touch device to disappear briefly.
# This loop waits for it to come back.
while ! xinput --list | grep -q "$touchdev"; do :; done
xinput set-float-prop "$touchdev" 'Coordinate Transformation Matrix' $*
}
rotatewacom() {
### FIXME: the byte range (38-40) will probably break at some point
for dev in $(xsetwacom --list devices | cut -b 38-40); do
xsetwacom set "$dev" rotate $1
done
}
check_orientation() {
XRAW=$(head -n1 /sys/bus/iio/devices/iio:device*/in_accel_x_raw)
YRAW=$(head -n1 /sys/bus/iio/devices/iio:device*/in_accel_y_raw)
if [ $CURRENT != 'normal' ] && [ $YRAW -le -$GRAV ]; then
CURRENT='normal'
xrandr -o normal
rotatetouch 1 0 0 0 1 0 0 0 1
rotatewacom none
### FIXME: There should be a separate script to enable/disable touchpad on folding events
xinput enable "$touchpad"
fi
if [ $CURRENT != 'inverse' ] && [ $YRAW -ge $GRAV ]; then
CURRENT='inverse'
xrandr -o inverted
rotatetouch -1 0 1 0 -1 1 0 0 1
rotatewacom half
xinput disable "$touchpad"
fi
if [ $CURRENT != 'left' ] && [ $XRAW -ge $GRAV ]; then
CURRENT='left'
xrandr -o left
rotatetouch 0 -1 1 1 0 0 0 0 1
rotatewacom ccw
xinput disable "$touchpad"
fi
if [ $CURRENT != 'right' ] && [ $XRAW -le -$GRAV ]; then
CURRENT='right'
xrandr -o right
rotatetouch 0 1 0 -1 0 1 0 0 1
rotatewacom cw
xinput disable "$touchpad"
fi
}
while true; do
check_orientation
sleep 1
done
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