#! /bin/bash

# this is the script that will start X
COMMAND="startgui.sh"
RES_BACKUP=""
RES=""
JID=""

function updateJID ()
{
 JID=`jobs | grep "$COMMAND" | grep -o -e[0-9]*\] | grep -o -e[0-9]*`
}

function getScreenRes ()
{
  RES=`su -l xuser -c "xdpyinfo -display :0| grep dimensions | grep -o -e[0-9][0-9]*x[0-9]* | head -n 1"`
}

function refreshDesktop ()
{
 echo "Updating screen to $RES_BACKUP"
 su -l xuser -c "DISPLAY=:0.0 fbsetbg -F /home/xuser/.fluxbox/backgrounds/BRN.png"
}

/etc/startgui.sh &

updateJID


while [ $JID ]
 do 
 sleep 1 
 
 # Be sure to update the loop condition variable
 updateJID
 
 # Next make sure that the screen size didn't change
 getScreenRes
 
 if [ ! "$RES" = "$RES_BACKUP" ]; then
    RES_BACKUP="$RES"
    refreshDesktop
 fi

done