#!/bin/bash
#
# Copyright 1999-2004 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: /var/cvsroot/gentoo-x86/www-client/mozilla-firefox/files/firefox,v 1.1 2005/03/18 19:47:25 seemant Exp $

# Set MOZILLA_NEWTYPE to "window" in your environment if you prefer
# new Firefox windows instead of new tabs
newtype=${MOZILLA_NEWTYPE:-"window"}

# Make sure necessary progs are in the PATH
PATH=/usr/bin:/bin:/usr/X11R6/bin:$PATH

# Support both firefox and mozilla
case "$0" in
  *fox*)
    export MOZILLA_FIVE_HOME="/usr/lib/MozillaFirefox"
    remote=$MOZILLA_FIVE_HOME/mozilla-xremote-client
    mozbin=$MOZILLA_FIVE_HOME/firefox
    grepfor=firefox-bin
    ;;

  *mozilla*)
    export MOZILLA_FIVE_HOME="/usr/lib/mozilla"
    remote=$MOZILLA_FIVE_HOME/mozilla-xremote-client
    # This is the old mozilla.sh which used to be installed as /usr/bin/mozilla.
    # I have no idea what parts of it should be kept/dropped so I'm just calling
    # it for now.
    mozbin=$MOZILLA_FIVE_HOME/mozilla.sh
    grepfor=mozilla-bin
    ;;
esac

# Validate the args and extract the urls
args=()
urls=()
while [[ $# -ne 0 ]] ; do
  if [[ $1 == -* ]] ; then
    case "${1#-}" in
      height|width|CreateProfile|P|UILocale|contentLocale|remote|edit|chrome)
        args=("${args[@]}" "$1" "$2")
        shift 2 ;;
      *)
        args=("${args[@]}" "$1")
        shift 1 ;;
    esac
  else
    # check for relative path to a file, transform to absolute path
    if [[ $1 != *://* && $1 != /* && -e $1 ]]; then
      urls=("${urls[@]}" "file://$PWD/$1")
    else
      urls=("${urls[@]}" $1)
    fi
    shift
  fi
done

# Try to start in an existing session; check all screens
declare -a screens=(
  $(xdpyinfo | awk '
    /^name of display:/ { 
      disp = substr($NF, 0, match($NF, /\.[^.]*$/)-1)
    }
    /^number of screens:/ {
      for (i = 0; i < $NF; i++) printf("%s.%d\n", disp, i)
    }')
  )

# Attempt to fix bug 39797 by making sure MozillaFirefox is running
# on the DISPLAY prior to calling mozilla-xremote-client.  The
# problem here is that mozilla-xremote-client will return a zero
# exit status if it contacts a Thunderbird-0.3 instance, even though
# Thunderbird can't handle the openURL request.  :-(
#
# Note: This seems to be fixed with Thunderbird-0.4, which rejects the
# openURL request appropriately.
declare -a candidates=()
for s in $DISPLAY "${screens[@]}"; do 
  if DISPLAY=$s xwininfo -root -tree | grep -q "$grepfor"; then
    candidates=("${candidates[@]}" $s)
  fi
done

# Make sure we'll get at least an empty window/tab
[[ ${#urls[@]} == 0 ]] && urls=('')

# Handle multiple URLs by looping over the xremote call
for u in "${urls[@]}"; do

  # Try mozilla-xremote-client on each candidate screen.
  # Only use mozilla-xremote-client if we have no other args (which
  # must be passed to the browser binary).
  if [[ ${#candidates[@]} > 0 && ${#args[*]} == 0 ]]; then
    for s in "${candidates[@]}"; do 
      DISPLAY=$s $remote "openURL($u, new-$newtype)" && break
    done
    retval=$?
  else
    # simulate mozilla-xremote-client's response when it can't find an instance
    retval=2
  fi

  # 2 = No running windows found, so start a new instance
  # 3 = Browser is running, but doesn't handle openURL command
  #     (or it might be unresponsive)
  if [[ $retval -eq 2 || $retval -eq 3 ]] ; then

    # Handle case of multiple URLs
    if [[ ${#urls[@]} > 1 ]]; then
      $mozbin "${args[@]}" "$u" &
      if [[ -x /usr/bin/xtoolwait ]]; then
        xtoolwait sleep 10
      else
        sleep 10   # totally arbitrary without xtoolwait! :-(
      fi
      candidates=$DISPLAY       # next time through, use $remote
      args=()                   # and drop the args
      continue
    fi

    # Handle case of single URL
    $mozbin "${args[@]}" "$u" &
    break

  elif [[ $retval -eq 1 ]]; then
    echo "Unable to connect to X server" >&2
  elif [[ $retval -ne 0 ]]; then
    echo "Unknown error $retval from mozilla-xremote-client" >&2
  fi

done

# Will only wait here if firefox was started by this script
if ! wait; then
  retval=$?
  echo "${mozbin##*/} exited with non-zero status ($?)" >&2
fi

exit $retval

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