#/bin/bash
# vim: si ts=4 sw=4

shopt -s extglob

IFS=$'\n' DEVICE_LIST=( $(xinput list --short) )

for (( I=0; I<${#DEVICE_LIST[@]}; I++ )); do
    IFS=$'\t' INFO=( ${DEVICE_LIST[$I]} )
    [ "${INFO[2]:1:1}" = "s" ] || continue
    NAME="${INFO[0]:6}"
    NAME="${NAME%%*([[:blank:]])}"
    ID="${INFO[1]#id=}"
    [[ "$NAME" != *XTEST* ]] || continue
    case "${INFO[2]:8:1}" in
    "p" )
        POINTERS+=( "$ID"$'\t'"$NAME" )
        ;;
    "k" )
        KEYBOARDS+=( "$ID"$'\t'"$NAME" )
        ;;
    esac
done

POINTER="$( IFS=$'\t' zenity --title="Select device" --list --text="Choose a pointer" --column="Id" --column="Name" ${POINTERS[@]} )"
KEYBOARD="$( IFS=$'\t' zenity --title="Select device" --list --text="Choose a keyboard" --column="Id" --column="Name" ${KEYBOARDS[@]} )"

[ -n "$POINTER" ] && [ -n "$KEYBOARD" ] || exit 1

MASTER_NAME="second"
xinput create-master "$MASTER_NAME"
xinput reattach "$POINTER" "$MASTER_NAME pointer"
xinput reattach "$KEYBOARD" "$MASTER_NAME keyboard"