[gedit-list] Crash when sending messages to Filebrowser plugin

[Robert Toscano <robert l toscano gmail com>]

Hey guys,

I'm getting this funky crash when I send the "get_view" message to the Filebrowser plugin. Here is the source of a python plugin I've implemented that reproduces the behavior. The comments in the python code explain exactly how to reproduce the problem.

GEDIT-PLUGIN FILE:

[Gedit Plugin]

Loader=python

Module=fbcrashdemo

IAge=2

Name=Filebrowser Crash Demonstration

Description=Demonstrates the Filebrowser plugin crashing when sending it a "get_view" message.

Authors=Robert Lopez Toscano

Copyright=Copyright © 2011 Robert Lopez Toscano <robert l toscano gmail com>

PLUGIN CODE:

#!/usr/bin/env python

import gedit

import gobject

class FilebrowserCrashDemoPlugin(gedit.Plugin):

  """To trigger the crash make sure you start gedit with the

  Filebrowser-crash-demo plugin disabled and the Filebrowser plugin enabled.

  Then:

    1. Enable the Filebrowser-crash-demo plugin.

    2. Disable the Filebrowser plugin.

    3. Enable the Filebrowser plugin.

    4. Disable the Filebrowser-crash-demo-plugin.

    5. Enable the Filebrowser-crash-demo-plugin.

  Expected behavior: step 5 should enable the Filebrowser-crash-demo-plugin

  without crashing.

  Actual behavior: step 5 causes gedit to seg fault.

  """

  def __init__(self):

    gedit.Plugin.__init__(self)

    self._crash_demos = {}

  def activate(self, window):

    self._crash_demos[window] = FilebrowserCrashDemo(window)

  def deactivate(self, window):

    self._crash_demos[window].deactivate()

    del self._crash_demos[window]

class FilebrowserCrashDemo(object):

  def __init__(self, window):

    self._window = window

    self._mb_registered_conn = \

        self._window.get_message_bus().connect_after('registered',

                                                     self._on_mb_registered)

    self._connect_with_fb()

  def deactivate(self):

    self._window.get_message_bus().handler_disconnect(self._mb_registered_conn)

  def _on_mb_registered(self, bus, msg_type):

    if msg_type.get_object_path() == 'plugins/filebrowser' and \

       msg_type.get_method() == 'get_view':

       gobject.timeout_add(1000, self._connect_with_fb)

  def _connect_with_fb(self):

    bus = self._window.get_message_bus()

    if bus.is_registered('/plugins/filebrowser', 'get_view'):

      bus.send_sync('/plugins/filebrowser', 'get_view')

I am not able to build the latest gedit on Ubuntu 11.04 so I am not able to test this on the latest build. I'm getting this autoconf error when I run autoconf on the latest source:

$ autoconf

configure.ac:10: warning: AC_INIT: not a literal: http://bugzilla.gnome.org/enter_bug.cgi?product=gedit

configure.ac:23: error: possibly undefined macro: AM_INIT_AUTOMAKE

      If this token and others are legitimate, please use m4_pattern_allow.

      See the Autoconf documentation.

configure.ac:24: error: possibly undefined macro: AM_MAINTAINER_MODE

configure.ac:36: error: possibly undefined macro: AM_PATH_PYTHON

configure.ac:68: error: possibly undefined macro: AM_CONDITIONAL

configure.ac:169: error: possibly undefined macro: AM_GNU_GETTEXT_VERSION

configure.ac:170: error: possibly undefined macro: AM_GNU_GETTEXT

configure.ac:417: error: possibly undefined macro: AC_MSG_WARN

Would anyone with the ability to build latest version of gedit be able to confirm that this is still a bug on the latest build of gedit?

--rob