##	gtkgui_helpers.py
##
## Gajim Team:
##	- Yann Le Boulanger <asterix@lagaule.org>
##	- Vincent Hanquez <tab@snarc.org>
##	- Nikos Kouremenos <kourem@gmail.com>
##	- Dimitur Kirov <dkirov@gmail.com>
##
## This file was initially written by Dimitur Kirov
##
##	Copyright (C) 2003-2005 Gajim Team
##
## 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; version 2 only.
##
## 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.
##

import xml.sax.saxutils
import gtk
from common import i18n

_ = i18n._
APP = i18n.APP
gtk.glade.bindtextdomain (APP, i18n.DIR)
gtk.glade.textdomain (APP)

def convert_bytes(string):
	suffix = ''
	bytes = int(string)
	if bytes >= 1024:
		bytes /= 1024
		if bytes >= 1024:
			bytes /= 1024
			if bytes >= 1024:
				bytes /= 1024
				suffix = _('%s Gb') 
			else:
				suffix = _('%s Mb') 
		else:
			suffix = _('%s Kb') 
	else:
		if bytes == 1:
			suffix = _('%s byte') 
		else:
			suffix = _('%s bytes') 
	return suffix % str(bytes)
	
def escape_for_pango_markup(string):
	# escapes < > & \ "
	# for pango markup not to break
	if string is None:
		return
	if gtk.pygtk_version >= (2, 8, 0) and gtk.gtk_version >= (2, 8, 0):
		escaped_str = gobject.markup_escape_text(string)
	else:
		escaped_str =xml.sax.saxutils.escape(string, {'\\': '&apos;',
			'"': '&quot;'})
	
	return escaped_str

def autodetect_browser_mailer(self):
	#recognize the environment for appropriate browser/mailer
	if os.path.isdir('/proc'):
		# under Linux: checking if 'gnome-session' or
		# 'startkde' programs were run before gajim, by
		# checking /proc (if it exists)
		#
		# if something is unclear, read `man proc`;
		# if /proc exists, directories that have only numbers
		# in their names contain data about processes.
		# /proc/[xxx]/exe is a symlink to executable started
		# as process number [xxx].
		# filter out everything that we are not interested in:
		files = os.listdir('/proc')

		# files that doesn't have only digits in names...
		files = filter(str.isdigit, files)

		# files that aren't directories...
		files = filter(lambda f:os.path.isdir('/proc/' + f), files)

		# processes owned by somebody not running gajim...
		# (we check if we have access to that file)
		files = filter(lambda f:os.access('/proc/' + f +'/exe', os.F_OK), files)

		# be sure that /proc/[number]/exe is really a symlink
		# to avoid TBs in incorrectly configured systems
		files = filter(lambda f:os.path.islink('/proc/' + f + '/exe'), files)

		# list of processes
		processes = [os.path.basename(os.readlink('/proc/' + f +'/exe')) for f in files]
		if 'gnome-session' in processes:
			gajim.config.set('openwith', 'gnome-open')
		elif 'startkde' in processes:
			gajim.config.set('openwith', 'kfmclient exec')
		else:
			gajim.config.set('openwith', 'custom')