screensaver-layout.sh

#!/bin/bash

# USAGE:
# - clone to ~/GitHub/screensaver-layout
# - edit ~/.config/lxsession/LXDE/autoload
# - add line: @~/GitHub/screensaver-layout/screensaver-layout.sh
# - save and exit
# - relogin to desktop environment

SYS_LAYOUTS=$(setxkbmap -query | grep 'layout' | awk '{ print $2 }')

trap "setxkbmap -layout $SYS_LAYOUTS; exit" SIGINT SIGQUIT SIGKILL

xscreensaver-command -watch | while read l
do
    if [[ "$l" == *LOCK* ]]
    then
        setxkbmap -layout us
    elif [[ "$l" == *UNBLANK* ]]
    then
        setxkbmap -layout $SYS_LAYOUTS
    fi
done