dmenu-wrapper

#!/bin/sh
###############################################################################
# dmenu-wrapper
#
# Wrapper for DMENU
#
# -----------------------------------------------------------------------------
# DWM Scripts - wrapper for dwm/dmenu/slock
#   (C) 2007-2013 Gerardo García Peña
#   Programmed by Gerardo García Peña
#
#   This program is free software; you can redistribute it and/or modify it
#   under the terms of the GNU General Public License as published by the Free
#   Software Foundation; either version 2 of the License, or (at your option)
#   any later version.
#
#   This program is distributed in the hope that it will be useful, but WITHOUT
#   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
#   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
#   more details.
#
#   You should have received a copy of the GNU General Public License along
#   with this program; if not, write to the Free Software Foundation, Inc., 51
#   Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
#
###############################################################################

. dwm-config-read

IFS="
"
PATH="$PATH:/sbin:/usr/sbin:/usr/local/bin:/usr/local/sbin:$HOME/bin"
DMENUCFG=`search_config_file "dmenu-config"`
SELECTED_MONITOR="0"

if [ "$DMENUCFG" ]; then
  CMLIST=`cat "$DMENUCFG"`
else
  CMLIST="
  # Select your favourite programs. If a program needs administration
  # privileges (su or sudo), add an exclamation mark before.
          aterm
          chromium-browser
          firefox
          gnome-terminal
          nautilus --no-desktop
         !poweroff
         !reboot
          dwm-screenshot
          dwm-windowshot
          dwm-xterm
         !wireshark
          xcalc
          xclock
          xterm"
fi

launch_dmenu()
{
  local i C

  for i in $CMLIST; do
    C="`echo "$i" | sed 's# .*$##' | sed 's#^!##'`"
    which "$C" > /dev/null 2>&1 && basename "$C"
  done | dmenu
}

is_cmlist_entry()
{
  for i in $CMLIST; do
    echo "$i"
  done | sed 's#^!##' | grep "^$1"
}

choose_command()
{
  local i C T

  C="`launch_dmenu`"
  if [ "$C" ] && T=`is_cmlist_entry "$C"`; then
    C="$T"
  fi

  echo "$C"
}

need_su()
{
  local i C

  C="$1"

  if [ "$C" ] && echo "$CMLIST" | grep "^!.*$C" > /dev/null 2>&1; then
    return 0
  else
    return 1
  fi
}

shutdown_action()
{
  if [ "$1" = "poweroff" -o "$1" = "reboot" ]; then
    return 0
  else
    return 1
  fi
}

while test "$1"; do
	PARAMETER="$1"
	shift
	case "$1" in
	-m)
		SELECTED_MONITOR="$1"
		shift
		if [ -z "$SELECTED_MONITOR" ] \
		|| echo "$SELECTED_MONITOR" | grep -v '^\(0\|[1-9][0-9]*\)' > /dev/null 2>&1; then
			error "Invalid selected monitor '$SELECTED_MONITOR'."
			exit 1
		fi
		;;
	*)
		error "Unknown parameter '$PARAMETER'."
		exit 1
	esac
done

CMLIST=`echo "$CMLIST" | grep -v '^ *\(#.*\)\?$' | sed 's#\(^ \+\| \+$\)##'`

if [ "$DMN_HOME_BIN" -a -d ~/bin ]; then
	for BIN in `find ~/bin -type f -executable`; do
		BIN="`basename "$BIN"`"
		if ! is_cmlist_entry "$BIN"; then
			echo "Add [$BIN]"
			CMLIST="$CMLIST$IFS$BIN"
		fi
	done
fi

CH=`choose_command`
if [ -z "$CH" ]; then
	# if execution is at this point, it means that user pressed ESC
	exit 1
fi

if echo $CH | grep -v ' ' > /dev/null 2>&1; then
	CM=`which "$CH"`
else
	CM="$CH"
fi
if need_su "$CH"; then
	CM=`dwm-sudo $CM`
fi

if shutdown_action "$CH"; then
	dwm-shutdown "$CH"
else
	if [ -z "$CM" ]; then
		msg "I don't know nothing about '$CH'. Leave Britney alone."
	else
		msg "Launching: $CM"
		sh -c "$CM" &
	fi
fi

exit 0