gajim-plural/src/gtkexcepthook.py

##	dialogs.py
##
## Gajim Team:
##	- Yann Le Boulanger <asterix@lagaule.org>
##	- Vincent Hanquez <tab@snarc.org>
##	- Nikos Kouremenos <kourem@gmail.com>
##	- Dimitur Kirov <dkirov@gmail.com>
##
##	Copyright (C) 2003-2005 Gajim Team
##
## Initially written and submitted by Gustavo J. A. M. Carneiro
##
## 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 sys
import traceback

import gtk
import pango
import dialogs

from cStringIO import StringIO
from common import helpers
from common import i18n

_ = i18n._
_exception_in_progress = False

def _info(type, value, tb):
	global _exception_in_progress
	if _exception_in_progress:
		# Exceptions have piled up, so we use the default exception
		# handler for such exceptions
		_excepthook_save(type, value, tb)
		return

	_exception_in_progress = True

	dialog = dialogs.HigDialog(None, gtk.MESSAGE_WARNING, gtk.BUTTONS_NONE, 
				_('A programming error has been detected'),
				_('It probably is not fatal, but should be reported '
				'to the developers nonetheless.'))
	
	#FIXME: add icon to this button
	RESPONSE_REPORT_BUG = 42
	dialog.add_buttons(gtk.STOCK_CLOSE, gtk.BUTTONS_CLOSE,
		_('_Report Bug'), RESPONSE_REPORT_BUG)
	dialog.set_default_response(RESPONSE_REPORT_BUG)
	report_button = dialog.action_area.get_children()[0] # right to left
	report_button.grab_focus()

	# Details
	textview = gtk.TextView()
	textview.set_editable(False)
	textview.modify_font(pango.FontDescription('Monospace'))
	sw = gtk.ScrolledWindow()
	sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
	sw.add(textview)
	frame = gtk.Frame()
	frame.set_shadow_type(gtk.SHADOW_IN)
	frame.add(sw)
	frame.set_border_width(6)
	textbuffer = textview.get_buffer()
	trace = StringIO()
	traceback.print_exception(type, value, tb, None, trace)
	textbuffer.set_text(trace.getvalue())
	textview.set_size_request(
		gtk.gdk.screen_width() / 3,
		gtk.gdk.screen_height() / 4)
	expander = gtk.Expander(_('Details'))
	expander.add(frame)
	dialog.vbox.add(expander)

	dialog.set_position(gtk.WIN_POS_CENTER)

	dialog.show_all()
	resp = dialog.run()

	if resp == RESPONSE_REPORT_BUG:
		url = 'http://trac.gajim.org/wiki/WikiStart#howto_report_ticket'
		helpers.launch_browser_mailer('url', url)
		#FIXME: it always get destroyed! why??
	else:
		dialog.destroy()

	_exception_in_progress = False
	
if not sys.stderr.isatty(): # gdb/kdm etc if we use startx this is not True
	#FIXME: maybe always show dialog?
	_excepthook_save = sys.excepthook
	sys.excepthook = _info

# this is just to assist testing (python gtkexcepthook.py)
if __name__ == '__main__':
	_excepthook_save = sys.excepthook
	sys.excepthook = _info
	print x # this always tracebacks