#!/usr/bin/env python

#  Copyright (C) 2005 Christian Persch
#
#  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, 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#  $Id$

def disconnect(tab):
	try:
		[ handler_id ] = tab._window_icon_details;
		del tab._window_icon_details;
		tab.disconnect(handler_id)
	except Exception:
		pass


def tab_icon_cb(tab, pspec, window):
	window.set_icon(tab.get_icon())


def active_tab_cb(window, pspec, data):
	try:
		old_tab = window._window_icon_active_tab
		disconnect(old_tab)
	except Exception:
		pass

	try:
		tab = window.get_active_tab()
		window._window_icon_active_tab = tab

		tab_icon_cb(tab, None, window)
		handler_id = tab.connect("notify::icon", tab_icon_cb, window)
		tab._window_icon_details = [ handler_id ]
	except Exception:
		pass


def detach_tab(window,tab):
	disconnect(tab)


def attach_window(window):
	active_tab_cb(window, None, None)
	handler_id = window.connect("notify::active-tab", active_tab_cb, None)
	window._window_icon_details = [ handler_id ]


def detach_window(window):
	[ handler_id ] = window._window_icon_details
	del window._window_icon_details
	window.disconnect(handler_id)
	window.set_icon(None)

	try:
		del window._window_icon_active_tab
	except Exception:
		pass