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# -*- coding: utf-8 -*-
#
# File: portato/gui/exception_handling.py
# This file is part of the Portato-Project, a graphical portage-frontend.
#
# Copyright (C) 2007-2008 René 'Necoro' Neumann
# This is free software. You may redistribute copies of it under the terms of
# the GNU General Public License version 2.
# There is NO WARRANTY, to the extent permitted by law.
#
#
# Written by René 'Necoro' Neumann
from __future__ import absolute_import, with_statement
import gtk, pango, gobject
import sys, traceback
from threading import Thread
from StringIO import StringIO
from ..helper import _, debug, error
from .dialogs import file_chooser_dialog, io_ex_dialog
class GtkThread (Thread):
def run(self):
try:
Thread.run(self)
except SystemExit:
raise # let normal thread handle it
except:
type, val, tb = sys.exc_info()
try:
sys.excepthook(type, val, tb, thread = self.getName())
except TypeError:
raise type, val, tb # let normal thread handle it
finally:
del type, val, tb
class UncaughtExceptionDialog(gtk.MessageDialog):
"""Original idea by Gustavo Carneiro - original code: http://www.daa.com.au/pipermail/pygtk/attachments/20030828/2d304204/gtkexcepthook.py."""
def __init__(self, type, value, tb, thread = None):
super(UncaughtExceptionDialog,self).__init__(parent=None, flags=0, type=gtk.MESSAGE_WARNING, buttons=gtk.BUTTONS_NONE, message_format=_("A programming error has been detected during the execution of this program."))
self.set_title(_("Bug Detected"))
self.format_secondary_text(_("It probably isn't fatal, but should be reported to the developers nonetheless."))
self.add_button(_("Show Details"), 1)
self.add_button(gtk.STOCK_SAVE_AS, 2)
self.add_button(gtk.STOCK_CLOSE, gtk.RESPONSE_CLOSE)
# Details
self.textview = gtk.TextView()
self.textview.set_editable(False)
self.textview.modify_font(pango.FontDescription("Monospace"))
self.sw = gtk.ScrolledWindow();
self.sw.set_policy(gtk.POLICY_AUTOMATIC, gtk.POLICY_AUTOMATIC)
self.sw.add(self.textview)
self.tbFrame = gtk.Frame()
self.tbFrame.set_shadow_type(gtk.SHADOW_IN)
self.tbFrame.add(self.sw)
self.tbFrame.set_border_width(6)
self.vbox.add(self.tbFrame)
textbuffer = self.textview.get_buffer()
self.text = get_trace(type, value, tb)
if thread:
self.text = _("Exception in thread \"%(thread)s\":\n%(trace)s") % {"thread": thread, "trace": self.text}
textbuffer.set_text(self.text)
self.textview.set_size_request(gtk.gdk.screen_width()/2, gtk.gdk.screen_height()/3)
self.details = self.tbFrame
self.set_position(gtk.WIN_POS_CENTER)
self.set_gravity(gtk.gdk.GRAVITY_CENTER)
def run (self):
while True:
resp = super(UncaughtExceptionDialog, self).run()
if resp == 1:
self.details.show_all()
self.set_response_sensitive(1, False)
elif resp == 2:
debug("Want to save")
file = file_chooser_dialog(_("Save traceback..."), self)
if file:
debug("Save to %s", file)
try:
with open(file, "w") as f:
f.writelines(self.text)
except IOError, e:
io_ex_dialog(e)
else:
debug("Nothing to save")
else:
break
self.destroy()
def convert (version):
"""Converts a version given as int-tuple to a normal version string."""
return ".".join(map(str, version))
def get_version_infos():
from ..constants import VERSION
from ..backend import system
from lxml import etree
return "\n".join((
"Portato version: %s" % VERSION,
"Used backend: %s" % system.get_version(),
"pygtk: %s (using GTK+: %s)" % (convert(gtk.pygtk_version), convert(gtk.gtk_version)),
"pygobject: %s (using GLib: %s)" % (convert(gobject.pygobject_version), convert(gobject.glib_version)),
"lxml: %s" % convert(etree.LXML_VERSION),
""))
def get_trace(type, value, tb):
trace = StringIO()
traceback.print_exception(type, value, tb, None, trace)
traceStr = trace.getvalue()
trace.close()
return traceStr + "\n" + get_version_infos()
def register_ex_handler():
def handler(type, val, tb, thread = None):
def run_dialog():
UncaughtExceptionDialog(type, val, tb, thread).run()
if thread:
error(_("Exception in thread \"%(thread)s\":\n%(trace)s"), {"thread": thread, "trace": get_trace(type, val, tb)})
else:
error(_("Exception:\n%s"), get_trace(type, val, tb))
gobject.idle_add(run_dialog)
sys.excepthook = handler
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