#!/bin/bash
#
LEFT_HANDED=""
show_help() {
echo "Usage: [--left]"
echo "--left = use lefthanded config"
exit 1
}
parse_args() {
while [[ $# -gt 0 ]]; do
case $1 in
--left)
LEFT_HANDED="yes"
shift
;;
*)
show_help
;;
esac
done
}
parse_args $@
MOUSE_NAME="Kensington Expert Mouse"
CHECK=$(xinput | grep "$MOUSE_NAME")
set -e
echo "check=$CHECK"
if [[ -z "$CHECK" ]]; then
echo "Cannot find the device: $MOUSE_NAME"
exit 1
fi
TRACKBALL_ID=$(xinput | grep "$MOUSE_NAME" | sed 's/^.*id=\([0-9]*\)[ \t].*$/\1/')
LEFT_TOP=2
LEFT_BOTTOM=1
RIGHT_TOP=8
RIGHT_BOTTOM=3
SCROLL_CLOCKWISE=5
SCROLL_COUNTERCW=4
# LB, LT, RB, SCCW, SCW, 6, 7, RT
MOUSE_LEFT=1
MOUSE_MIDDLE=2
MOUSE_RIGHT=3
# ---
# make scrolling with the ball smooth
SCROLLING_PIXEL_DISTANCE=50
# X clients receive events with logical button numbers, where 1, 2, 3 are usually interpreted as left, middle, right and logical buttons 4, 5, 6, 7 are usually interpreted as scroll up, down, left, right. The fourth and fifth physical buttons on a device will thus send logical buttons 8 and 9. The ButtonMapping option adjusts the logical button mapping, it does not affect how a physical button is mapped to a logical button.
if [[ -n $LEFT_HANDED ]]; then
echo "using lefthanded config"
SCROLLING_BUTTON=$RIGHT_TOP
# LB, LT, RB, SCCW, SCW, 6, 7, RT
BUTTON_MAP="$MOUSE_MIDDLE $MOUSE_RIGHT $MOUSE_LEFT 4 5 6 7 8"
else
# right hand settings
SCROLLING_BUTTON=$LEFT_TOP
# LB, LT, RB, SCCW, SCW, 6, 7, RT
BUTTON_MAP="$MOUSE_LEFT 8 $MOUSE_MIDDLE 4 5 6 7 $MOUSE_RIGHT"
fi
# -------
xinput set-prop $TRACKBALL_ID "libinput Scrolling Pixel Distance" $SCROLLING_PIXEL_DISTANCE
xinput set-prop $TRACKBALL_ID "libinput Button Scrolling Button" $SCROLLING_BUTTON
xinput set-prop $TRACKBALL_ID "libinput Scroll Method Enabled" 0, 0, 1
xinput set-button-map $TRACKBALL_ID 1 2 3 4 5 6 7 8 9
echo $BUTTON_MAP
xinput set-button-map $TRACKBALL_ID $BUTTON_MAP
