#!/bin/sh
#
# session chooser
#
# Michael Janczyk <mj0@uni-freiburg.de>
#
# Last changes: 15-05-2006
#



# set X background
xsetroot -solid "slate grey"


x_dialog () {

  xsessions="/usr/share/xsessions"
  vmsessions="/var/lib/vmware/vmsessions"
  tmpdir="/tmp"
  menu=
  execute=


  xdesktopsnr=( `ls ${xsessions}/*.desktop | grep -v "default.*" \
    | wc -l 2>/dev/null` )
  desktops=( `ls ${xsessions}/*.desktop | grep -v "default.*" \
    | sort -bf 2>/dev/null; \
    ls ${vmsessions}/*.desktop | sort -bf 2>/dev/null` )
  desktopsnr=$(echo "${#desktops[*]}")


  (( args=0 ))
  declare -i i=0

  while [ "${xdesktopsnr}" -gt "${args}" ]; do
    # exec in .desktop
    execute[${i}]=$(grep -m 1 -i "exec" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    # name in .desktop
    execute[${i}]=$(grep -m 1 -i "name" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    execute[${i}]=${execute[${i}]:-`echo ${execute[${i}-1]} | sed -e "s,-, ,g"`}
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    # comment in .desktop
    execute[${i}]=$(grep -m 1 -i "comment" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    execute[${i}]="| Desktop Environment |
${execute[${i}]:-"No comment"}"
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    (( args=${args}+1 ))
  done


  while [ "${desktopsnr}" -gt "${args}" ]; do
    # exec in .desktop
    execute[${i}]=$(grep -m 1 -i "exec" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    # name in .desktop
    execute[${i}]=$(grep -m 1 -i "name" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    execute[${i}]=${execute[${i}]:-`echo ${execute[${i}-1]} | sed -e "s,-, ,g"`}
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    # comment in .desktop
    execute[${i}]=$(grep -m 1 -i "comment" ${desktops[${args}]} \
      | awk -F "=" '{print $2}')
    execute[${i}]="| VMware Image |
${execute[${i}]:-"No comment"}"
    menu="$menu \"\${execute[${i}]}\""
    i=${i}+1

    (( args=${args}+1 ))
  done

  # --stderr because of 1>/dev/null
  # echoing to file because Xdialog sux when used w/ quotes
  echo -e "Xdialog --title \"Desktop / VMware-Image Menu\" \
          --screen-center \
          --fill \
          --no-wrap \
          --stderr \
          --no-tags \
          --ok-label \"START\" \
          --item-help \
          --menubox \"Which desktop or VMware-image to start?\" 35 80 0 \
          $menu 1>/dev/null" \
  > ${tmpdir}/Xdialog

  . ${tmpdir}/Xdialog
  rm -f ${tmpdir}/Xdialog
}

args_dial=$(x_dialog 2>&1) # 2>&1, see function
exec ${args_dial}

exit 0