#!/bin/sh

if test -n "$1"; then
    echo "Syntax: openbox-gnome-session"
    echo
    echo "See the openbox-gnome-session(1) manpage for help."
  exit
fi

# Clean up after GDM
xprop -root -remove _NET_NUMBER_OF_DESKTOPS \
      -remove _NET_DESKTOP_NAMES \
      -remove _NET_CURRENT_DESKTOP 2> /dev/null

VER=$(gnome-session --version 2>/dev/null | \
      sed -e 's/[^0-9.]*\([0-9.]\+\)/\1/')

MAJOR=$(echo $VER | cut -d . -f 1)
MINOR=$(echo $VER | cut -d . -f 2)

# run GNOME with Openbox as its window manager

if test $MAJOR -lt 2 || (test $MAJOR = 2 && test $MINOR -le 22); then
  # old gnome-session was easy to work with
  export WINDOW_MANAGER="@bindir@/openbox"
  exec gnome-session --choose-session=openbox-session "$@"
else
  # new gnome-session requires openbox to be set in gconf and an
  # openbox.desktop to be installed in the applications directory

  SPATH=/desktop/gnome/session

  # get the current default session
  SESSION=$(gconftool-2 -g $SPATH/default_session 2> /dev/null)

  # make sure openbox is going to be run
  if test -z "$SESSION"; then
      # if its empty then just run openbox
      SESSION="[openbox]"
  elif echo "$SESSION" | grep -q openbox; then
      # if openbox isn't in the session then append it
      SESSION="${SESSION%]},openbox]"
  fi

  # get the current GNOME/Openbox session
  OB_SESSION=$(gconftool-2 -g $SPATH/openbox_session 2> /dev/null)

  # update the GNOME/Openbox session if needed
  if test x$OB_SESSION != x$SESSION; then
      # the default session changed or we didn't run GNOME/Openbox before
      gconftool-2 -t list --list-type=strings -s $SPATH/openbox_session \
        "$SESSION" 2> /dev/null
  fi

  # run GNOME/Openbox
  exec gnome-session --default-session-key $SPATH/openbox_session "$@"
fi