#!/bin/sh

# /etc/pm/sleep.d/40xkb-save-restore
# written by Vincent Lefevre <vincent@vinc17.net>
#
# See pm-action(8) man page for the documentation.
# See /var/log/pm-suspend.log* for the logs.
#
# "xhost +si:localuser:root" must be run by the user, for instance
# at login time, so that xkbcomp can have access to the display.
# But the settings are not always restored:
#   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=756268
#
# Script originally suggested here:
#   https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=633849#92

set -e

dir=/run/pm-xkb
mkdir -p $dir
displays=$dir/displays

unset list

ok()
{
  if [ -n "$list" ]; then
    echo "$1 XKB settings for displays:$list"
  fi
}

xkbsave()
{
  : > $displays
  cd /tmp/.X11-unix
  for file in X*
  do
    d=${file#X}
    if xkbcomp :$d $dir/$d; then
      echo $d >> $displays
      list="$list $d"
    fi
  done
  ok saved
}

xkbrestore()
{
  while read d
  do
    xkbcomp -w 0 $dir/$d :$d
    list="$list $d"
  done < $displays
  ok restored
}

case $1 in
  suspend|hibernate) xkbsave ;;
  resume|thaw) xkbrestore ;;
  *) echo "unsupported argument" >&2
     exit 1 ;;
esac

# $Id: 40xkb-save-restore 73204 2014-09-19 09:57:21Z vinc17/xvii $