gajim-plural/src/groupchat_control.py

# -*- coding:utf-8 -*-
## src/groupchat_control.py
##
## Copyright (C) 2003-2014 Yann Leboulanger <asterix AT lagaule.org>
## Copyright (C) 2005-2007 Nikos Kouremenos <kourem AT gmail.com>
## Copyright (C) 2006 Dimitur Kirov <dkirov AT gmail.com>
##                    Alex Mauer <hawke AT hawkesnest.net>
## Copyright (C) 2006-2008 Jean-Marie Traissard <jim AT lapin.org>
##                         Travis Shirk <travis AT pobox.com>
## Copyright (C) 2007-2008 Julien Pivotto <roidelapluie AT gmail.com>
##                         Stephan Erb <steve-e AT h3c.de>
## Copyright (C) 2008 Brendan Taylor <whateley AT gmail.com>
##                    Jonathan Schleifer <js-gajim AT webkeks.org>
##
## This file is part of Gajim.
##
## Gajim 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 3 only.
##
## Gajim 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 Gajim. If not, see <http://www.gnu.org/licenses/>.
##

import os
import time
import locale
from gi.repository import Gtk
from gi.repository import Gdk
from gi.repository import GdkPixbuf
from gi.repository import Pango
from gi.repository import GLib
import gtkgui_helpers
import gui_menu_builder
import message_control
import tooltips
import dialogs
import config
import vcard
import cell_renderer_image
import dataforms_widget
import nbxmpp

from enum import IntEnum, unique

from common import events
from common import gajim
from common import helpers
from common import dataforms
from common import ged
from common import i18n

from chat_control import ChatControl
from chat_control_base import ChatControlBase

from command_system.implementation.hosts import PrivateChatCommands
from command_system.implementation.hosts import GroupChatCommands
from common.connection_handlers_events import GcMessageOutgoingEvent

import logging
log = logging.getLogger('gajim.groupchat_control')

@unique
class Column(IntEnum):
    IMG = 0 # image to show state (online, new message etc)
    NICK = 1 # contact nickame or ROLE name
    TYPE = 2 # type of the row ('contact' or 'role')
    TEXT = 3 # text shown in the cellrenderer
    AVATAR = 4 # avatar of the contact

empty_pixbuf = GdkPixbuf.Pixbuf.new(GdkPixbuf.Colorspace.RGB, True, 8, 1, 1)
empty_pixbuf.fill(0xffffff00)

def tree_cell_data_func(column, renderer, model, iter_, tv=None):
    # cell data func is global, because we don't want it to keep
    # reference to GroupchatControl instance (self)
    theme = gajim.config.get('roster_theme')
    # allocate space for avatar only if needed
    parent_iter = model.iter_parent(iter_)
    if isinstance(renderer, Gtk.CellRendererPixbuf):
        avatar_position = gajim.config.get('avatar_position_in_roster')
        if avatar_position == 'right':
            renderer.set_property('xalign', 1) # align pixbuf to the right
        else:
            renderer.set_property('xalign', 0.5)
        if parent_iter and (model[iter_][Column.AVATAR] or avatar_position == \
        'left'):
            renderer.set_property('visible', True)
            renderer.set_property('width', gajim.config.get(
                'roster_avatar_width'))
        else:
            renderer.set_property('visible', False)
    if parent_iter:
        bgcolor = gajim.config.get_per('themes', theme, 'contactbgcolor')
        if bgcolor:
            renderer.set_property('cell-background', bgcolor)
        else:
            renderer.set_property('cell-background', None)
        if isinstance(renderer, Gtk.CellRendererText):
            # foreground property is only with CellRendererText
            color = gajim.config.get_per('themes', theme, 'contacttextcolor')
            if color:
                renderer.set_property('foreground', color)
            else:
                renderer.set_property('foreground', None)
            renderer.set_property('font',
                gtkgui_helpers.get_theme_font_for_option(theme, 'contactfont'))
    else: # it is root (eg. group)
        bgcolor = gajim.config.get_per('themes', theme, 'groupbgcolor')
        renderer.set_property('cell-background', bgcolor or None)
        if isinstance(renderer, Gtk.CellRendererText):
            # foreground property is only with CellRendererText
            color = gajim.config.get_per('themes', theme, 'grouptextcolor')
            renderer.set_property('foreground', color or None)
            renderer.set_property('font',
                gtkgui_helpers.get_theme_font_for_option(theme, 'groupfont'))


class PrivateChatControl(ChatControl):
    TYPE_ID = message_control.TYPE_PM

    # Set a command host to bound to. Every command given through a private chat
    # will be processed with this command host.
    COMMAND_HOST = PrivateChatCommands

    def __init__(self, parent_win, gc_contact, contact, account, session):
        room_jid = gc_contact.room_jid
        self.room_ctrl = gajim.interface.msg_win_mgr.get_gc_control(room_jid,
            account)
        if room_jid in gajim.interface.minimized_controls[account]:
            self.room_ctrl = gajim.interface.minimized_controls[account][room_jid]
        if self.room_ctrl:
            self.room_name = self.room_ctrl.name
        else:
            self.room_name = room_jid
        self.gc_contact = gc_contact
        ChatControl.__init__(self, parent_win, contact, account, session)
        self.TYPE_ID = 'pm'
        gajim.ged.register_event_handler('caps-received', ged.GUI1,
            self._nec_caps_received_pm)
        gajim.ged.register_event_handler('gc-presence-received', ged.GUI1,
            self._nec_gc_presence_received)

    def get_our_nick(self):
        return self.room_ctrl.nick

    def shutdown(self):
        super(PrivateChatControl, self).shutdown()
        gajim.ged.remove_event_handler('caps-received', ged.GUI1,
            self._nec_caps_received_pm)
        gajim.ged.remove_event_handler('gc-presence-received', ged.GUI1,
            self._nec_gc_presence_received)

    def _nec_caps_received_pm(self, obj):
        if obj.conn.name != self.account or \
        obj.fjid != self.gc_contact.get_full_jid():
            return
        self.update_contact()

    def _nec_gc_presence_received(self, obj):
        if obj.conn.name != self.account:
            return
        if obj.fjid != self.full_jid:
            return
        if '303' in obj.status_code:
            self.print_conversation(_('%(nick)s is now known as '
                '%(new_nick)s') % {'nick': obj.nick, 'new_nick': obj.new_nick},
                'status')
            gc_c = gajim.contacts.get_gc_contact(obj.conn.name, obj.room_jid,
                obj.new_nick)
            c = gc_c.as_contact()
            self.gc_contact = gc_c
            self.contact = c
            if self.session:
                # stop e2e
                if self.session.enable_encryption:
                    thread_id = self.session.thread_id
                    self.session.terminate_e2e()
                    obj.conn.delete_session(obj.fjid, thread_id)
                    self.no_autonegotiation = False
            self.draw_banner()
            old_jid = obj.room_jid + '/' + obj.nick
            new_jid = obj.room_jid + '/' + obj.new_nick
            gajim.interface.msg_win_mgr.change_key(old_jid, new_jid,
                obj.conn.name)
        else:
            self.contact.show = obj.show
            self.contact.status = obj.status
            self.gc_contact.show = obj.show
            self.gc_contact.status = obj.status
            uf_show = helpers.get_uf_show(obj.show)
            self.print_conversation(_('%(nick)s is now %(status)s') % {
                    'nick': obj.nick, 'status': uf_show}, 'status')
            if obj.status:
                self.print_conversation(' (', 'status', simple=True)
                self.print_conversation('%s' % (obj.status), 'status',
                    simple=True)
                self.print_conversation(')', 'status', simple=True)
            self.parent_win.redraw_tab(self)
            self.update_ui()

    def send_message(self, message, xhtml=None, process_commands=True,
    attention=False):
        """
        Call this method to send the message
        """
        message = helpers.remove_invalid_xml_chars(message)
        if not message:
            return

        # We need to make sure that we can still send through the room and that
        # the recipient did not go away
        contact = gajim.contacts.get_first_contact_from_jid(self.account,
                self.contact.jid)
        if not contact:
            # contact was from pm in MUC
            room, nick = gajim.get_room_and_nick_from_fjid(self.contact.jid)
            gc_contact = gajim.contacts.get_gc_contact(self.account, room, nick)
            if not gc_contact:
                dialogs.ErrorDialog(
                    _('Sending private message failed'),
                    #in second %s code replaces with nickname
                    _('You are no longer in group chat "%(room)s" or '
                    '"%(nick)s" has left.') % {'room': '\u200E' + room,
                    'nick': nick}, transient_for=self.parent_win.window)
                return

        ChatControl.send_message(self, message, xhtml=xhtml,
            process_commands=process_commands, attention=attention)

    def update_ui(self):
        if self.contact.show == 'offline':
            self.got_disconnected()
        else:
            self.got_connected()
        ChatControl.update_ui(self)

    def update_contact(self):
        self.contact = self.gc_contact.as_contact()

    def begin_e2e_negotiation(self):
        self.no_autonegotiation = True

        if not self.session:
            fjid = self.gc_contact.get_full_jid()
            new_sess = gajim.connections[self.account].make_new_session(fjid,
                type_=self.type_id)
            self.set_session(new_sess)

        self.session.negotiate_e2e(False)

    def prepare_context_menu(self, hide_buttonbar_items=False):
        """
        Set compact view menuitem active state sets active and sensitivity state
        for toggle_gpg_menuitem sets sensitivity for history_menuitem (False for
        tranasports) and file_transfer_menuitem and hide()/show() for
        add_to_roster_menuitem
        """
        menu = gui_menu_builder.get_contact_menu(self.contact, self.account,
            use_multiple_contacts=False, show_start_chat=False,
            show_encryption=True, control=self,
            show_buttonbar_items=not hide_buttonbar_items,
            gc_contact=self.gc_contact,
            is_anonymous=self.room_ctrl.is_anonymous)
        return menu

    def got_disconnected(self):
        ChatControl.got_disconnected(self)

class GroupchatControl(ChatControlBase):
    TYPE_ID = message_control.TYPE_GC

    # Set a command host to bound to. Every command given through a group chat
    # will be processed with this command host.
    COMMAND_HOST = GroupChatCommands

    def __init__(self, parent_win, contact, acct, is_continued=False):
        ChatControlBase.__init__(self, self.TYPE_ID, parent_win,
            'groupchat_control', contact, acct)

        self.force_non_minimizable = False
        self.is_continued = is_continued
        self.is_anonymous = True

        # Controls the state of autorejoin.
        # None - autorejoin is neutral.
        # False - autorejoin is to be prevented (gets reset to initial state in
        #         got_connected()).
        # int - autorejoin is being active and working (gets reset to initial
        #       state in got_connected()).
        self.autorejoin = None

        # Keep error dialog instance to be sure to have only once at a time
        self.error_dialog = None
        send_button = self.xml.get_object('send_button')
        send_button.set_sensitive(False)

        self.actions_button = self.xml.get_object('muc_window_actions_button')
        id_ = self.actions_button.connect('clicked',
            self.on_actions_button_clicked)
        self.handlers[id_] = self.actions_button

        widget = self.xml.get_object('change_nick_button')
        widget.set_sensitive(False)
        id_ = widget.connect('clicked', self._on_change_nick_menuitem_activate)
        self.handlers[id_] = widget

        widget = self.xml.get_object('change_subject_button')
        widget.set_sensitive(False)
        id_ = widget.connect('clicked',
            self._on_change_subject_menuitem_activate)
        self.handlers[id_] = widget

        formattings_button = self.xml.get_object('formattings_button')
        formattings_button.set_sensitive(False)

        widget = self.xml.get_object('bookmark_button')
        for bm in gajim.connections[self.account].bookmarks:
            if bm['jid'] == self.contact.jid:
                widget.hide()
                break
        else:
            id_ = widget.connect('clicked',
                self._on_bookmark_room_menuitem_activate)
            self.handlers[id_] = widget

            if gtkgui_helpers.gtk_icon_theme.has_icon('bookmark-new'):
                img = self.xml.get_object('image7')
                img.set_from_icon_name('bookmark-new', Gtk.IconSize.MENU)
            widget.set_sensitive(
                gajim.connections[self.account].private_storage_supported or \
                (gajim.connections[self.account].pubsub_supported and \
                gajim.connections[self.account].pubsub_publish_options_supported))
            widget.show()

        if gtkgui_helpers.gtk_icon_theme.has_icon('document-open-recent'):
            img = self.xml.get_object('history_image')
            img.set_from_icon_name('document-open-recent', Gtk.IconSize.MENU)

        self.current_tooltip = None
        if parent_win:
            # On AutoJoin with minimize Groupchats are created without parent
            # Tooltip Window has to be created with parent
            self.set_tooltip()

        widget = self.xml.get_object('list_treeview')
        id_ = widget.connect('row_expanded', self.on_list_treeview_row_expanded)
        self.handlers[id_] = widget

        id_ = widget.connect('row_collapsed',
            self.on_list_treeview_row_collapsed)
        self.handlers[id_] = widget

        id_ = widget.connect('row_activated',
            self.on_list_treeview_row_activated)
        self.handlers[id_] = widget

        id_ = widget.connect('button_press_event',
            self.on_list_treeview_button_press_event)
        self.handlers[id_] = widget

        id_ = widget.connect('key_press_event',
            self.on_list_treeview_key_press_event)
        self.handlers[id_] = widget

        self.room_jid = self.contact.jid
        self.nick = contact.name
        self.new_nick = ''
        self.name = ''
        for bm in gajim.connections[self.account].bookmarks:
            if bm['jid'] == self.room_jid:
                self.name = bm['name']
                break
        if not self.name:
            self.name = self.room_jid.split('@')[0]

        compact_view = gajim.config.get('compact_view')
        self.chat_buttons_set_visible(compact_view)
        self.widget_set_visible(self.xml.get_object('banner_eventbox'),
            gajim.config.get('hide_groupchat_banner'))
        self.widget_set_visible(self.xml.get_object('list_scrolledwindow'),
            gajim.config.get('hide_groupchat_occupants_list'))

        self._last_selected_contact = None # None or holds jid, account tuple

        # muc attention flag (when we are mentioned in a muc)
        # if True, the room has mentioned us
        self.attention_flag = False

        # sorted list of nicks who mentioned us (last at the end)
        self.attention_list = []
        self.room_creation = int(time.time()) # Use int to reduce mem usage
        self.nick_hits = []
        self.last_key_tabs = False

        self.subject = ''

        # nickname coloring
        self.gc_count_nicknames_colors = -1
        self.gc_custom_colors = {}
        self.number_of_colors = len(gajim.config.get('gc_nicknames_colors').\
            split(':'))

        self.name_label = self.xml.get_object('banner_name_label')
        self.event_box = self.xml.get_object('banner_eventbox')

        self.list_treeview = self.xml.get_object('list_treeview')
        selection = self.list_treeview.get_selection()
        id_ = selection.connect('changed',
            self.on_list_treeview_selection_changed)
        self.handlers[id_] = selection
        id_ = self.list_treeview.connect('style-set',
            self.on_list_treeview_style_set)
        self.handlers[id_] = self.list_treeview
        self.resize_from_another_muc = False
        # we want to know when the the widget resizes, because that is
        # an indication that the hpaned has moved...
        self.hpaned = self.xml.get_object('hpaned')
        id_ = self.hpaned.connect('notify', self.on_hpaned_notify)
        self.handlers[id_] = self.hpaned

        # set the position of the current hpaned
        hpaned_position = gajim.config.get('gc-hpaned-position')
        self.hpaned.set_position(hpaned_position)

        #status_image, shown_nick, type, nickname, avatar
        self.columns = [Gtk.Image, str, str, str, GdkPixbuf.Pixbuf]
        self.model = Gtk.TreeStore(*self.columns)
        self.model.set_sort_func(Column.NICK, self.tree_compare_iters)
        self.model.set_sort_column_id(Column.NICK, Gtk.SortType.ASCENDING)

        # columns
        column = Gtk.TreeViewColumn()
        # list of renderers with attributes / properties in the form:
        # (name, renderer_object, expand?, attribute_name, attribute_value,
        # cell_data_func, func_arg)
        self.renderers_list = []
        # Number of renderers plugins added
        self.nb_ext_renderers = 0
        self.renderers_propertys = {}
        renderer_image = cell_renderer_image.CellRendererImage(0, 0)
        self.renderers_propertys[renderer_image] = ('width', 26)
        renderer_text = Gtk.CellRendererText()
        self.renderers_propertys[renderer_text] = ('ellipsize',
            Pango.EllipsizeMode.END)

        self.renderers_list += (
            # status img
            ('icon', renderer_image, False,
            'image', Column.IMG, tree_cell_data_func, self.list_treeview),
            # contact name
            ('name', renderer_text, True,
            'markup', Column.TEXT, tree_cell_data_func, self.list_treeview))

        # avatar img
        avater_renderer = ('avatar', Gtk.CellRendererPixbuf(),
            False, 'pixbuf', Column.AVATAR,
            tree_cell_data_func, self.list_treeview)

        if gajim.config.get('avatar_position_in_roster') == 'right':
            self.renderers_list.append(avater_renderer)
        else:
            self.renderers_list.insert(0, avater_renderer)

        self.fill_column(column)
        self.list_treeview.append_column(column)

        # workaround to avoid gtk arrows to be shown
        column = Gtk.TreeViewColumn() # 2nd COLUMN
        renderer = Gtk.CellRendererPixbuf()
        column.pack_start(renderer, False)
        self.list_treeview.append_column(column)
        column.set_visible(False)
        self.list_treeview.set_expander_column(column)

        self.setup_seclabel(self.xml.get_object('label_selector'))

        self.form_widget = None

        gajim.ged.register_event_handler('gc-presence-received', ged.GUI1,
            self._nec_gc_presence_received)
        gajim.ged.register_event_handler('gc-message-received', ged.GUI1,
            self._nec_gc_message_received)
        gajim.ged.register_event_handler('vcard-published', ged.GUI1,
            self._nec_vcard_published)
        gajim.ged.register_event_handler('vcard-received', ged.GUI1,
            self._nec_vcard_received)
        gajim.ged.register_event_handler('gc-subject-received', ged.GUI1,
            self._nec_gc_subject_received)
        gajim.ged.register_event_handler('gc-config-changed-received', ged.GUI1,
            self._nec_gc_config_changed_received)
        gajim.ged.register_event_handler('signed-in', ged.GUI1,
            self._nec_signed_in)
        gajim.ged.register_event_handler('decrypted-message-received', ged.GUI2,
            self._nec_decrypted_message_received)
        gajim.gc_connected[self.account][self.room_jid] = False
        # disable win, we are not connected yet
        ChatControlBase.got_disconnected(self)

        self.update_ui()
        self.widget.show_all()

        # PluginSystem: adding GUI extension point for this GroupchatControl
        # instance object
        gajim.plugin_manager.gui_extension_point('groupchat_control', self)

    def set_tooltip(self):
        widget = self.xml.get_object('list_treeview')
        if widget.get_tooltip_window():
            return
        widget.set_has_tooltip(True)
        widget.set_tooltip_window(tooltips.GCTooltip(self.parent_win.window))
        id_ = widget.connect('query-tooltip', self.query_tooltip)
        self.handlers[id_] = widget

    def query_tooltip(self, widget, x_pos, y_pos, keyboard_mode, tooltip):
        try:
            row = self.list_treeview.get_path_at_pos(x_pos, y_pos)[0]
        except TypeError:
            return False
        if not row:
            return False

        iter_ = None
        try:
            iter_ = self.model.get_iter(row)
        except Exception:
            return False

        typ = self.model[iter_][Column.TYPE]
        nick = self.model[iter_][Column.NICK]

        if typ != 'contact':
            return False

        if self.current_tooltip != row:
            # If the row changes we hide the current tooltip
            self.current_tooltip = row
            return False

        tooltip = widget.get_tooltip_window()

        if tooltip.row == row:
            # We already populated the window with the row data
            return True
        tooltip.row = row

        contact = gajim.contacts.get_gc_contact(
            self.account, self.room_jid, nick)
        if not contact:
            return False

        tooltip.populate(contact)
        return True

    def fill_column(self, col):
        for rend in self.renderers_list:
            col.pack_start(rend[1], rend[2])
            col.add_attribute(rend[1], rend[3], rend[4])
            col.set_cell_data_func(rend[1], rend[5], rend[6])
        # set renderers propertys
        for renderer in self.renderers_propertys.keys():
            renderer.set_property(self.renderers_propertys[renderer][0],
                self.renderers_propertys[renderer][1])

    def tree_compare_iters(self, model, iter1, iter2, data=None):
        """
        Compare two iters to sort them
        """
        type1 = model[iter1][Column.TYPE]
        type2 = model[iter2][Column.TYPE]
        if not type1 or not type2:
            return 0
        nick1 = model[iter1][Column.NICK]
        nick2 = model[iter2][Column.NICK]
        if not nick1 or not nick2:
            return 0
        if type1 == 'role':
            return locale.strcoll(nick1, nick2)
        if type1 == 'contact':
            gc_contact1 = gajim.contacts.get_gc_contact(self.account,
                    self.room_jid, nick1)
            if not gc_contact1:
                return 0
        if type2 == 'contact':
            gc_contact2 = gajim.contacts.get_gc_contact(self.account,
                    self.room_jid, nick2)
            if not gc_contact2:
                return 0
        if type1 == 'contact' and type2 == 'contact' and \
        gajim.config.get('sort_by_show_in_muc'):
            cshow = {'chat':0, 'online': 1, 'away': 2, 'xa': 3, 'dnd': 4,
                'invisible': 5, 'offline': 6, 'error': 7}
            show1 = cshow[gc_contact1.show]
            show2 = cshow[gc_contact2.show]
            if show1 < show2:
                return -1
            elif show1 > show2:
                return 1
        # We compare names
        name1 = gc_contact1.get_shown_name()
        name2 = gc_contact2.get_shown_name()
        return locale.strcoll(name1.lower(), name2.lower())

    def on_msg_textview_populate_popup(self, textview, menu):
        """
        Override the default context menu and we prepend Clear
        and the ability to insert a nick
        """
        ChatControlBase.on_msg_textview_populate_popup(self, textview, menu)
        item = Gtk.SeparatorMenuItem.new()
        menu.prepend(item)

        item = Gtk.MenuItem.new_with_label(_('Insert Nickname'))
        menu.prepend(item)
        submenu = Gtk.Menu()
        item.set_submenu(submenu)

        for nick in sorted(gajim.contacts.get_nick_list(self.account,
        self.room_jid)):
            item = Gtk.MenuItem.new_with_label(nick)
            item.set_use_underline(False)
            submenu.append(item)
            id_ = item.connect('activate', self.append_nick_in_msg_textview,
                nick)
            self.handlers[id_] = item

        menu.show_all()

    def resize_occupant_treeview(self, position):
        self.resize_from_another_muc = True
        self.hpaned.set_position(position)
        def reset_flag():
            self.resize_from_another_muc = False
        # Reset the flag when everything will be redrawn, and in particular when
        # on_treeview_size_allocate will have been called.
        GLib.idle_add(reset_flag)

    def on_hpaned_notify(self, pane, gparamspec):
        """
        The MUC treeview has resized. Move the hpaned in all tabs to match
        """
       # print pane, dir(pane)
        #if gparamspec.name != 'position':
            #return
        if self.resize_from_another_muc:
            # Don't send the event to other MUC
            return

        hpaned_position = self.hpaned.get_position()
        gajim.config.set('gc-hpaned-position', hpaned_position)
        for account in gajim.gc_connected:
            for room_jid in [i for i in gajim.gc_connected[account] if \
            gajim.gc_connected[account][i] and i != self.room_jid]:
                ctrl = gajim.interface.msg_win_mgr.get_gc_control(room_jid,
                    account)
                if not ctrl and room_jid in \
                gajim.interface.minimized_controls[account]:
                    ctrl = gajim.interface.minimized_controls[account][room_jid]
                if ctrl and gajim.config.get('one_message_window') != 'never':
                    ctrl.resize_occupant_treeview(hpaned_position)

    def iter_contact_rows(self):
        """
        Iterate over all contact rows in the tree model
        """
        role_iter = self.model.get_iter_first()
        while role_iter:
            contact_iter = self.model.iter_children(role_iter)
            while contact_iter:
                yield self.model[contact_iter]
                contact_iter = self.model.iter_next(contact_iter)
            role_iter = self.model.iter_next(role_iter)

    def on_list_treeview_style_set(self, treeview, style):
        """
        When style (theme) changes, redraw all contacts
        """
        # Get the room_jid from treeview
        for contact in self.iter_contact_rows():
            nick = contact[Column.NICK]
            self.draw_contact(nick)

    def on_list_treeview_selection_changed(self, selection):
        model, selected_iter = selection.get_selected()
        self.draw_contact(self.nick)
        if self._last_selected_contact is not None:
            self.draw_contact(self._last_selected_contact)
        if selected_iter is None:
            self._last_selected_contact = None
            return
        contact = model[selected_iter]
        nick = contact[Column.NICK]
        self._last_selected_contact = nick
        if contact[Column.TYPE] != 'contact':
            return
        self.draw_contact(nick, selected=True, focus=True)

    def get_tab_label(self, chatstate):
        """
        Markup the label if necessary. Returns a tuple such as: (new_label_str,
        color) either of which can be None if chatstate is given that means we
        have HE SENT US a chatstate
        """

        has_focus = self.parent_win.window.get_property('has-toplevel-focus')
        current_tab = self.parent_win.get_active_control() == self
        color = None
        if chatstate == 'attention' and (not has_focus or not current_tab):
            self.attention_flag = True
            color = 'state_muc_directed_msg_color'
        elif chatstate == 'active' or (current_tab and has_focus):
            self.attention_flag = False
            # get active color from gtk
            color = 'active'
        elif chatstate == 'newmsg' and (not has_focus or not current_tab) \
        and not self.attention_flag:
            color = 'state_muc_msg_color'

        if self.is_continued:
            # if this is a continued conversation
            label_str = self.get_continued_conversation_name()
        else:
            label_str = self.name

        # count waiting highlighted messages
        unread = ''
        num_unread = self.get_nb_unread()
        if num_unread == 1:
            unread = '*'
        elif num_unread > 1:
            unread = '[' + str(num_unread) + ']'
        label_str = unread + label_str
        return (label_str, color)

    def get_tab_image(self, count_unread=True):
        # Set tab image (always 16x16)
        tab_image = None
        if gajim.gc_connected[self.account][self.room_jid]:
            tab_image = gtkgui_helpers.load_icon('muc_active')
        else:
            tab_image = gtkgui_helpers.load_icon('muc_inactive')
        return tab_image

    def update_ui(self):
        ChatControlBase.update_ui(self)
        for nick in gajim.contacts.get_nick_list(self.account, self.room_jid):
            self.draw_contact(nick)

    def _change_style(self, model, path, iter_, option):
        model[iter_][Column.NICK] = model[iter_][Column.NICK]

    def change_roster_style(self):
        self.model.foreach(self._change_style, None)

    def repaint_themed_widgets(self):
        ChatControlBase.repaint_themed_widgets(self)
        self.change_roster_style()

    def _update_banner_state_image(self):
        banner_status_img = self.xml.get_object('gc_banner_status_image')
        images = gajim.interface.jabber_state_images
        if self.room_jid in gajim.gc_connected[self.account] and \
        gajim.gc_connected[self.account][self.room_jid]:
            image = 'muc_active'
        else:
            image = 'muc_inactive'
        if '32' in images and image in images['32']:
            muc_icon = images['32'][image]
            if muc_icon.get_storage_type() != Gtk.ImageType.EMPTY:
                pix = muc_icon.get_pixbuf()
                banner_status_img.set_from_pixbuf(pix)
                return
        # we need to scale 16x16 to 32x32
        muc_icon = images['16'][image]
        pix = muc_icon.get_pixbuf()
        scaled_pix = pix.scale_simple(32, 32, GdkPixbuf.InterpType.BILINEAR)
        banner_status_img.set_from_pixbuf(scaled_pix)

    def get_continued_conversation_name(self):
        """
        Get the name of a continued conversation.  Will return Continued
        Conversation if there isn't any other contact in the room
        """
        nicks = []
        for nick in gajim.contacts.get_nick_list(self.account,
        self.room_jid):
            if nick != self.nick:
                nicks.append(nick)
        if nicks != []:
            title = ', '
            title = _('Conversation with ') + title.join(nicks)
        else:
            title = _('Continued conversation')
        return title

    def draw_banner_text(self):
        """
        Draw the text in the fat line at the top of the window that houses the
        room jid, subject
        """
        self.name_label.set_ellipsize(Pango.EllipsizeMode.END)
        self.banner_status_label.set_ellipsize(Pango.EllipsizeMode.END)
        font_attrs, font_attrs_small = self.get_font_attrs()
        if self.is_continued:
            name = self.get_continued_conversation_name()
        else:
            name = self.room_jid
        text = '<span %s>%s</span>' % (font_attrs, '\u200E' + name)
        self.name_label.set_markup(text)

        if self.subject:
            subject = helpers.reduce_chars_newlines(self.subject, max_lines=2)
            subject = GLib.markup_escape_text(subject)
            subject_text = self.urlfinder.sub(self.make_href, subject)
            subject_text = '<span %s>%s</span>' % (font_attrs_small,
                subject_text)

            # tooltip must always hold ALL the subject
            self.event_box.set_tooltip_text(self.subject)
            self.banner_status_label.set_no_show_all(False)
            self.banner_status_label.show()
        else:
            subject_text = ''
            self.event_box.set_has_tooltip(False)
            self.banner_status_label.hide()
            self.banner_status_label.set_no_show_all(True)

        self.banner_status_label.set_markup(subject_text)

    def prepare_context_menu(self, hide_buttonbar_items=False):
        """
        Set sensitivity state for configure_room
        """
        xml = gtkgui_helpers.get_gtk_builder('gc_control_popup_menu.ui')
        menu = xml.get_object('gc_control_popup_menu')

        bookmark_room_menuitem = xml.get_object('bookmark_room_menuitem')
        change_nick_menuitem = xml.get_object('change_nick_menuitem')
        configure_room_menuitem = xml.get_object('configure_room_menuitem')
        destroy_room_menuitem = xml.get_object('destroy_room_menuitem')
        change_subject_menuitem = xml.get_object('change_subject_menuitem')
        history_menuitem = xml.get_object('history_menuitem')
        disconnect_menuitem = xml.get_object('disconnect_menuitem')
        minimize_menuitem = xml.get_object('minimize_menuitem')
        request_voice_menuitem = xml.get_object('request_voice_menuitem')
        bookmark_separator = xml.get_object('bookmark_separator')
        separatormenuitem2 = xml.get_object('separatormenuitem2')
        request_voice_separator = xml.get_object('request_voice_separator')

        if hide_buttonbar_items:
            change_nick_menuitem.hide()
            change_subject_menuitem.hide()
            bookmark_room_menuitem.hide()
            history_menuitem.hide()
            bookmark_separator.hide()
            separatormenuitem2.hide()
        else:
            change_nick_menuitem.show()
            change_subject_menuitem.show()
            bookmark_room_menuitem.show()
            history_menuitem.show()
            bookmark_separator.show()
            separatormenuitem2.show()
            for bm in gajim.connections[self.account].bookmarks:
                if bm['jid'] == self.room_jid:
                    bookmark_room_menuitem.hide()
                    bookmark_separator.hide()
                    break

        ag = Gtk.accel_groups_from_object(self.parent_win.window)[0]
        change_nick_menuitem.add_accelerator('activate', ag, Gdk.KEY_n,
            Gdk.ModifierType.CONTROL_MASK | Gdk.ModifierType.SHIFT_MASK, Gtk.AccelFlags.VISIBLE)
        change_subject_menuitem.add_accelerator('activate', ag,
            Gdk.KEY_t, Gdk.ModifierType.MOD1_MASK, Gtk.AccelFlags.VISIBLE)
        bookmark_room_menuitem.add_accelerator('activate', ag, Gdk.KEY_b,
            Gdk.ModifierType.CONTROL_MASK, Gtk.AccelFlags.VISIBLE)
        history_menuitem.add_accelerator('activate', ag, Gdk.KEY_h,
            Gdk.ModifierType.CONTROL_MASK, Gtk.AccelFlags.VISIBLE)

        if self.contact.jid not in gajim.config.get_per('accounts', self.account,
        'non_minimized_gc').split(' '):
            minimize_menuitem.set_active(True)
        conn = gajim.connections[self.account]
        if not conn.private_storage_supported and (not conn.pubsub_supported or \
        not conn.pubsub_publish_options_supported):
            bookmark_room_menuitem.set_sensitive(False)
        if gajim.gc_connected[self.account][self.room_jid]:
            c = gajim.contacts.get_gc_contact(self.account, self.room_jid,
                self.nick)
            if c.affiliation not in ('owner', 'admin'):
                configure_room_menuitem.set_sensitive(False)
            else:
                configure_room_menuitem.set_sensitive(True)
            if c.affiliation != 'owner':
                destroy_room_menuitem.set_sensitive(False)
            else:
                destroy_room_menuitem.set_sensitive(True)
            change_subject_menuitem.set_sensitive(True)
            change_nick_menuitem.set_sensitive(True)
            if c.role == 'visitor':
                request_voice_menuitem.set_sensitive(True)
            else:
                request_voice_menuitem.set_sensitive(False)
        else:
            # We are not connected to this groupchat, disable unusable menuitems
            configure_room_menuitem.set_sensitive(False)
            destroy_room_menuitem.set_sensitive(False)
            change_subject_menuitem.set_sensitive(False)
            change_nick_menuitem.set_sensitive(False)
            request_voice_menuitem.set_sensitive(False)

        # connect the menuitems to their respective functions
        id_ = bookmark_room_menuitem.connect('activate',
            self._on_bookmark_room_menuitem_activate)
        self.handlers[id_] = bookmark_room_menuitem

        id_ = change_nick_menuitem.connect('activate',
            self._on_change_nick_menuitem_activate)
        self.handlers[id_] = change_nick_menuitem

        id_ = configure_room_menuitem.connect('activate',
            self._on_configure_room_menuitem_activate)
        self.handlers[id_] = configure_room_menuitem

        id_ = destroy_room_menuitem.connect('activate',
            self._on_destroy_room_menuitem_activate)
        self.handlers[id_] = destroy_room_menuitem

        id_ = change_subject_menuitem.connect('activate',
            self._on_change_subject_menuitem_activate)
        self.handlers[id_] = change_subject_menuitem

        id_ = history_menuitem.connect('activate',
            self._on_history_menuitem_activate)
        self.handlers[id_] = history_menuitem
        
        id_ = disconnect_menuitem.connect('activate',
            self._on_disconnect_menuitem_activate)
        self.handlers[id_] = disconnect_menuitem

        id_ = request_voice_menuitem.connect('activate',
            self._on_request_voice_menuitem_activate)
        self.handlers[id_] = request_voice_menuitem

        id_ = minimize_menuitem.connect('toggled',
            self.on_minimize_menuitem_toggled)
        self.handlers[id_] = minimize_menuitem

        menu.connect('selection-done', self.destroy_menu,
            change_nick_menuitem, change_subject_menuitem,
            bookmark_room_menuitem, history_menuitem)
        return menu

    def destroy_menu(self, menu, change_nick_menuitem, change_subject_menuitem,
    bookmark_room_menuitem, history_menuitem):
        # destroy accelerators
        ag = Gtk.accel_groups_from_object(self.parent_win.window)[0]
        change_nick_menuitem.remove_accelerator(ag, Gdk.KEY_n,
            Gdk.ModifierType.CONTROL_MASK | Gdk.ModifierType.SHIFT_MASK)
        change_subject_menuitem.remove_accelerator(ag, Gdk.KEY_t,
            Gdk.ModifierType.MOD1_MASK)
        bookmark_room_menuitem.remove_accelerator(ag, Gdk.KEY_b,
            Gdk.ModifierType.CONTROL_MASK)
        history_menuitem.remove_accelerator(ag, Gdk.KEY_h,
            Gdk.ModifierType.CONTROL_MASK)
        # destroy menu
        menu.destroy()

    def _nec_vcard_published(self, obj):
        if obj.conn.name != self.account:
            return
        show = gajim.SHOW_LIST[obj.conn.connected]
        status = obj.conn.status
        obj.conn.send_gc_status(self.nick, self.room_jid, show, status)

    def _nec_vcard_received(self, obj):
        if obj.conn.name != self.account:
            return
        if obj.jid != self.room_jid:
            return
        self.draw_avatar(obj.resource)

    def _nec_gc_message_received(self, obj):
        if obj.room_jid != self.room_jid or obj.conn.name != self.account:
            return
        if obj.captcha_form:
            if self.form_widget:
                self.form_widget.hide()
                self.form_widget.destroy()
                self.btn_box.destroy()
            dataform = dataforms.ExtendForm(node=obj.captcha_form)
            self.form_widget = dataforms_widget.DataFormWidget(dataform)

            def on_send_dataform_clicked(widget):
                if not self.form_widget:
                    return
                form_node = self.form_widget.data_form.get_purged()
                form_node.type_ = 'submit'
                obj.conn.send_captcha(self.room_jid, form_node)
                self.form_widget.hide()
                self.form_widget.destroy()
                self.btn_box.destroy()
                self.form_widget = None
                del self.btn_box

            self.form_widget.connect('validated', on_send_dataform_clicked)
            self.form_widget.show_all()
            vbox = self.xml.get_object('gc_textviews_vbox')
            vbox.pack_start(self.form_widget, False, True, 0)

            valid_button = Gtk.Button(stock=Gtk.STOCK_OK)
            valid_button.connect('clicked', on_send_dataform_clicked)
            self.btn_box = Gtk.HButtonBox()
            self.btn_box.set_layout(Gtk.ButtonBoxStyle.END)
            self.btn_box.pack_start(valid_button, True, True, 0)
            self.btn_box.show_all()
            vbox.pack_start(self.btn_box, False, False, 0)
            if self.parent_win:
                self.parent_win.redraw_tab(self, 'attention')
            else:
                self.attention_flag = True
        if '100' in obj.status_code:
            # Room is not anonymous
            self.is_anonymous = False
        if not obj.nick:
            # message from server
            self.print_conversation(obj.msgtxt, tim=obj.timestamp,
                xhtml=obj.xhtml_msgtxt, displaymarking=obj.displaymarking)
        else:
            # message from someone
            if obj.has_timestamp:
                # don't print xhtml if it's an old message.
                # Like that xhtml messages are grayed too.
                self.print_old_conversation(obj.msgtxt, contact=obj.nick,
                    tim=obj.timestamp, xhtml=None,
                    displaymarking=obj.displaymarking, msg_stanza_id=obj.id_)
            else:
                if obj.nick == self.nick:
                    self.last_sent_txt = obj.msgtxt
                self.print_conversation(obj.msgtxt, contact=obj.nick,
                    tim=obj.timestamp, xhtml=obj.xhtml_msgtxt,
                    displaymarking=obj.displaymarking,
                    correct_id=obj.correct_id, msg_stanza_id=obj.id_)
        obj.needs_highlight = self.needs_visual_notification(obj.msgtxt)

    def on_private_message(self, nick, msg, tim, xhtml, session, msg_log_id=None,
    encrypted=False, displaymarking=None):
        # Do we have a queue?
        fjid = self.room_jid + '/' + nick
        no_queue = len(gajim.events.get_events(self.account, fjid)) == 0

        event = events.PmEvent(msg, '', 'incoming', tim, encrypted, '',
            msg_log_id, xhtml=xhtml, session=session, form_node=None,
            displaymarking=displaymarking, sent_forwarded=False)
        gajim.events.add_event(self.account, fjid, event)

        autopopup = gajim.config.get('autopopup')
        autopopupaway = gajim.config.get('autopopupaway')
        iter_ = self.get_contact_iter(nick)
        path = self.model.get_path(iter_)
        if not autopopup or (not autopopupaway and \
        gajim.connections[self.account].connected > 2):
            if no_queue: # We didn't have a queue: we change icons
                state_images = \
                    gajim.interface.roster.get_appropriate_state_images(
                    self.room_jid, icon_name='event')
                image = state_images['event']
                self.model[iter_][Column.IMG] = image
            if self.parent_win:
                self.parent_win.show_title()
                self.parent_win.redraw_tab(self)
        else:
            self._start_private_message(nick)
        # Scroll to line
        path_ = path
        path_.up()
        self.list_treeview.expand_row(path_, False)
        self.list_treeview.scroll_to_cell(path)
        self.list_treeview.set_cursor(path)
        contact = gajim.contacts.get_contact_with_highest_priority(
            self.account, self.room_jid)
        if contact:
            gajim.interface.roster.draw_contact(self.room_jid, self.account)

    def get_contact_iter(self, nick):
        role_iter = self.model.get_iter_first()
        while role_iter:
            user_iter = self.model.iter_children(role_iter)
            while user_iter:
                if nick == self.model[user_iter][Column.NICK]:
                    return user_iter
                else:
                    user_iter = self.model.iter_next(user_iter)
            role_iter = self.model.iter_next(role_iter)
        return None

    def print_old_conversation(self, text, contact='', tim=None, xhtml = None,
    displaymarking=None, msg_stanza_id=None):
        if contact:
            if contact == self.nick: # it's us
                kind = 'outgoing'
            else:
                kind = 'incoming'
        else:
            kind = 'status'
        if gajim.config.get('restored_messages_small'):
            small_attr = ['small']
        else:
            small_attr = []
        ChatControlBase.print_conversation_line(self, text, kind, contact, tim,
            small_attr, small_attr + ['restored_message'],
            small_attr + ['restored_message'], count_as_new=False, xhtml=xhtml,
            displaymarking=displaymarking, msg_stanza_id=msg_stanza_id)

    def print_conversation(self, text, contact='', tim=None, xhtml=None,
    graphics=True, displaymarking=None, correct_id=None, msg_stanza_id=None):
        """
        Print a line in the conversation

        If contact is set: it's a message from someone or an info message
        (contact = 'info' in such a case).
        If contact is not set: it's a message from the server or help.
        """
        other_tags_for_name = []
        other_tags_for_text = []
        if contact:
            if contact == self.nick: # it's us
                kind = 'outgoing'
            elif contact == 'info':
                kind = 'info'
                contact = None
            else:
                kind = 'incoming'
                # muc-specific chatstate
                if self.parent_win:
                    self.parent_win.redraw_tab(self, 'newmsg')
        else:
            kind = 'status'

        if kind == 'incoming': # it's a message NOT from us
            # highlighting and sounds
            (highlight, sound) = self.highlighting_for_message(text, tim)
            if contact in self.gc_custom_colors:
                other_tags_for_name.append('gc_nickname_color_' + \
                    str(self.gc_custom_colors[contact]))
            else:
                self.gc_count_nicknames_colors += 1
                if self.gc_count_nicknames_colors == self.number_of_colors:
                    self.gc_count_nicknames_colors = 0
                self.gc_custom_colors[contact] = \
                    self.gc_count_nicknames_colors
                other_tags_for_name.append('gc_nickname_color_' + \
                    str(self.gc_count_nicknames_colors))
            if highlight:
                # muc-specific chatstate
                if self.parent_win:
                    self.parent_win.redraw_tab(self, 'attention')
                else:
                    self.attention_flag = True
                other_tags_for_name.append('bold')
                other_tags_for_text.append('marked')

                if contact in self.attention_list:
                    self.attention_list.remove(contact)
                elif len(self.attention_list) > 6:
                    self.attention_list.pop(0) # remove older
                self.attention_list.append(contact)

            if text.startswith('/me ') or text.startswith('/me\n'):
                other_tags_for_text.append('gc_nickname_color_' + \
                    str(self.gc_custom_colors[contact]))

            self.check_and_possibly_add_focus_out_line()

        ChatControlBase.print_conversation_line(self, text, kind, contact, tim,
            other_tags_for_name, [], other_tags_for_text, xhtml=xhtml,
            graphics=graphics, displaymarking=displaymarking,
            correct_id=correct_id, msg_stanza_id=msg_stanza_id)

    def get_nb_unread(self):
        type_events = ['printed_marked_gc_msg']
        if gajim.config.get('notify_on_all_muc_messages'):
            type_events.append('printed_gc_msg')
        nb = len(gajim.events.get_events(self.account, self.room_jid,
            type_events))
        nb += self.get_nb_unread_pm()
        return nb

    def get_nb_unread_pm(self):
        nb = 0
        for nick in gajim.contacts.get_nick_list(self.account, self.room_jid):
            nb += len(gajim.events.get_events(self.account, self.room_jid + \
                '/' + nick, ['pm']))
        return nb

    def highlighting_for_message(self, text, tim):
        """
        Returns a 2-Tuple. The first says whether or not to highlight the text,
        the second, what sound to play
        """
        highlight, sound = (None, None)

        # Are any of the defined highlighting words in the text?
        if self.needs_visual_notification(text):
            highlight = True
            if gajim.config.get_per('soundevents', 'muc_message_highlight',
            'enabled'):
                sound = 'highlight'

        # Do we play a sound on every muc message?
        elif gajim.config.get_per('soundevents', 'muc_message_received', \
        'enabled'):
            sound = 'received'

        # Is it a history message? Don't want sound-floods when we join.
        if tim != time.localtime():
            sound = None

        return (highlight, sound)

    def check_and_possibly_add_focus_out_line(self):
        """
        Check and possibly add focus out line for room_jid if it needs it and
        does not already have it as last event. If it goes to add this line
        - remove previous line first
        """
        win = gajim.interface.msg_win_mgr.get_window(self.room_jid,
            self.account)
        if win and self.room_jid == win.get_active_jid() and\
        win.window.get_property('has-toplevel-focus') and\
        self.parent_win.get_active_control() == self:
            # it's the current room and it's the focused window.
            # we have full focus (we are reading it!)
            return

        at_the_end = self.conv_textview.at_the_end()
        self.conv_textview.show_focus_out_line(scroll=at_the_end)

    def needs_visual_notification(self, text):
        """
        Check text to see whether any of the words in (muc_highlight_words and
        nick) appear
        """
        special_words = gajim.config.get('muc_highlight_words').split(';')
        special_words.append(self.nick)
        # Strip empties: ''.split(';') == [''] and would highlight everything.
        # Also lowercase everything for case insensitive compare.
        special_words = [word.lower() for word in special_words if word]
        text = text.lower()

        for special_word in special_words:
            found_here = text.find(special_word)
            while(found_here > -1):
                end_here = found_here + len(special_word)
                if (found_here == 0 or not text[found_here - 1].isalpha()) and \
                (end_here == len(text) or not text[end_here].isalpha()):
                    # It is beginning of text or char before is not alpha AND
                    # it is end of text or char after is not alpha
                    return True
                # continue searching
                start = found_here + 1
                found_here = text.find(special_word, start)
        return False

    def set_subject(self, subject):
        self.subject = subject
        self.draw_banner_text()

    def _nec_gc_subject_received(self, obj):
        if obj.conn.name != self.account:
            return
        if obj.room_jid != self.room_jid:
            return
        self.set_subject(obj.subject)
        text = _('%(nick)s has set the subject to %(subject)s') % {
            'nick': obj.nickname, 'subject': obj.subject}
        if obj.has_timestamp:
            self.print_old_conversation(text)
        else:
            self.print_conversation(text)

    def _nec_gc_config_changed_received(self, obj):
        # statuscode is a list
        # http://www.xmpp.org/extensions/xep-0045.html#roomconfig-notify
        # http://www.xmpp.org/extensions/xep-0045.html#registrar-statuscodes...
        # -init
        if obj.room_jid != self.room_jid or obj.conn.name != self.account:
            return

        changes = []
        if '100' in obj.status_code:
            # Can be a presence (see chg_contact_status in groupchat_control.py)
            changes.append(_('Any occupant is allowed to see your full JID'))
            self.is_anonymous = False
        if '102' in obj.status_code:
            changes.append(_('Room now shows unavailable members'))
        if '103' in obj.status_code:
            changes.append(_('Room now does not show unavailable members'))
        if '104' in obj.status_code:
            changes.append(_('A setting not related to privacy has been '
                'changed'))
        if '170' in obj.status_code:
            # Can be a presence (see chg_contact_status in groupchat_control.py)
            changes.append(_('Room logging is now enabled'))
        if '171' in obj.status_code:
            changes.append(_('Room logging is now disabled'))
        if '172' in obj.status_code:
            changes.append(_('Room is now non-anonymous'))
            self.is_anonymous = False
        if '173' in obj.status_code:
            changes.append(_('Room is now semi-anonymous'))
            self.is_anonymous = True
        if '174' in obj.status_code:
            changes.append(_('Room is now fully anonymous'))
            self.is_anonymous = True

        for change in changes:
            self.print_conversation(change)

    def _nec_signed_in(self, obj):
        if obj.conn.name != self.account:
            return
        if self.room_jid in gajim.gc_connected[obj.conn.name] and \
        gajim.gc_connected[obj.conn.name][self.room_jid]:
            return
        password = gajim.gc_passwords.get(self.room_jid, '')
        obj.conn.join_gc(self.nick, self.room_jid, password, rejoin=True)

    def _nec_decrypted_message_received(self, obj):
        if obj.conn.name != self.account:
            return
        if obj.gc_control == self and obj.resource:
            # We got a pm from this room
            nick = obj.resource
            if obj.session.control:
                # print if a control is open
                obj.session.control.print_conversation(obj.msgtxt,
                    tim=obj.timestamp, xhtml=obj.xhtml, encrypted=obj.encrypted,
                    displaymarking=obj.displaymarking, msg_stanza_id=obj.id_,
                    correct_id=obj.correct_id)
            else:
                # otherwise pass it off to the control to be queued
                self.on_private_message(nick, obj.msgtxt, obj.timestamp,
                    obj.xhtml, self.session, msg_log_id=obj.msg_log_id,
                    encrypted=obj.encrypted, displaymarking=obj.displaymarking)

    def _nec_ping_reply(self, obj):
        if obj.control:
            if obj.control != self:
                return
        else:
            if self.contact != obj.contact:
                return
        self.print_conversation(_('Pong! (%s s.)') % obj.seconds)

    def got_connected(self):
        # Make autorejoin stop.
        if self.autorejoin:
            GLib.source_remove(self.autorejoin)
        self.autorejoin = None

        gajim.gc_connected[self.account][self.room_jid] = True
        ChatControlBase.got_connected(self)
        self.list_treeview.set_model(self.model)
        self.list_treeview.expand_all()
        # We don't redraw the whole banner here, because only icon change
        self._update_banner_state_image()
        if self.parent_win:
            self.parent_win.redraw_tab(self)

        send_button = self.xml.get_object('send_button')
        send_button.set_sensitive(True)
        emoticons_button = self.xml.get_object('emoticons_button')
        emoticons_button.set_sensitive(True)
        formattings_button = self.xml.get_object('formattings_button')
        formattings_button.set_sensitive(True)
        change_nick_button = self.xml.get_object('change_nick_button')
        change_nick_button.set_sensitive(True)
        change_subject_button = self.xml.get_object('change_subject_button')
        change_subject_button.set_sensitive(True)

    def got_disconnected(self):
        send_button = self.xml.get_object('send_button')
        send_button.set_sensitive(False)
        emoticons_button = self.xml.get_object('emoticons_button')
        emoticons_button.set_sensitive(False)
        formattings_button = self.xml.get_object('formattings_button')
        formattings_button.set_sensitive(False)
        change_nick_button = self.xml.get_object('change_nick_button')
        change_nick_button.set_sensitive(False)
        change_subject_button = self.xml.get_object('change_subject_button')
        change_subject_button.set_sensitive(False)
        self.list_treeview.set_model(None)
        self.model.clear()
        nick_list = gajim.contacts.get_nick_list(self.account, self.room_jid)
        for nick in nick_list:
            # Update pm chat window
            fjid = self.room_jid + '/' + nick
            gc_contact = gajim.contacts.get_gc_contact(self.account,
                self.room_jid, nick)

            ctrl = gajim.interface.msg_win_mgr.get_control(fjid, self.account)
            if ctrl:
                gc_contact.show = 'offline'
                gc_contact.status = ''
                ctrl.update_ui()
                if ctrl.parent_win:
                    ctrl.parent_win.redraw_tab(ctrl)

            gajim.contacts.remove_gc_contact(self.account, gc_contact)
        gajim.gc_connected[self.account][self.room_jid] = False
        ChatControlBase.got_disconnected(self)
        # Tell connection to note the date we disconnect to avoid duplicate logs
        gajim.connections[self.account].gc_got_disconnected(self.room_jid)
        # We don't redraw the whole banner here, because only icon change
        self._update_banner_state_image()
        if self.parent_win:
            self.parent_win.redraw_tab(self)

        # Autorejoin stuff goes here.
        # Notice that we don't need to activate autorejoin if connection is lost
        # or in progress.
        if self.autorejoin is None and gajim.account_is_connected(self.account):
            ar_to = gajim.config.get('muc_autorejoin_timeout')
            if ar_to:
                self.autorejoin = GLib.timeout_add_seconds(ar_to, self.rejoin)

    def rejoin(self):
        if not self.autorejoin:
            return False
        password = gajim.gc_passwords.get(self.room_jid, '')
        gajim.connections[self.account].join_gc(self.nick, self.room_jid,
            password, rejoin=True)
        return True

    def draw_roster(self):
        self.model.clear()
        for nick in gajim.contacts.get_nick_list(self.account, self.room_jid):
            gc_contact = gajim.contacts.get_gc_contact(self.account,
                self.room_jid, nick)
            self.add_contact_to_roster(nick, gc_contact.show, gc_contact.role,
                gc_contact.affiliation, gc_contact.status, gc_contact.jid)
        self.draw_all_roles()
        # Recalculate column width for ellipsizin
        self.list_treeview.columns_autosize()

    def on_send_pm(self, widget=None, model=None, iter_=None, nick=None,
    msg=None):
        """
        Open a chat window and if msg is not None - send private message to a
        contact in a room
        """
        if nick is None:
            nick = model[iter_][Column.NICK]

        ctrl = self._start_private_message(nick)
        if ctrl and msg:
            ctrl.send_message(msg)

    def on_send_file(self, widget, gc_contact):
        """
        Send a file to a contact in the room
        """
        self._on_send_file(gc_contact)

    def draw_contact(self, nick, selected=False, focus=False):
        iter_ = self.get_contact_iter(nick)
        if not iter_:
            return
        gc_contact = gajim.contacts.get_gc_contact(self.account, self.room_jid,
                nick)
        state_images = gajim.interface.jabber_state_images['16']
        if len(gajim.events.get_events(self.account, self.room_jid + '/' + \
        nick)):
            image = state_images['event']
        else:
            image = state_images[gc_contact.show]

        name = GLib.markup_escape_text(gc_contact.name)

        # Strike name if blocked
        fjid = self.room_jid + '/' + nick
        if helpers.jid_is_blocked(self.account, fjid):
            name = '<span strikethrough="true">%s</span>' % name

        status = gc_contact.status
        # add status msg, if not empty, under contact name in the treeview
        if status and gajim.config.get('show_status_msgs_in_roster'):
            status = status.strip()
            if status != '':
                status = helpers.reduce_chars_newlines(status, max_lines=1)
                # escape markup entities and make them small italic and fg color
                color = gtkgui_helpers.get_fade_color(self.list_treeview,
                        selected, focus)
                colorstring = "#%04x%04x%04x" % (int(color.red * 65535),
                    int(color.green * 65535), int(color.blue * 65535))
                name += ('\n<span size="small" style="italic" foreground="%s">'
                    '%s</span>') % (colorstring, GLib.markup_escape_text(
                    status))

        if image.get_storage_type() == Gtk.ImageType.PIXBUF and \
        gc_contact.affiliation != 'none' and gajim.config.get(
        'show_affiliation_in_groupchat'):
            pixbuf1 = image.get_pixbuf().copy()
            pixbuf2 = GdkPixbuf.Pixbuf.new(GdkPixbuf.Colorspace.RGB, True, 8, 4, 4)
            if gc_contact.affiliation == 'owner':
                pixbuf2.fill(0xff0000ff) # Red
            elif gc_contact.affiliation == 'admin':
                pixbuf2.fill(0xffb200ff) # Oragne
            elif gc_contact.affiliation == 'member':
                pixbuf2.fill(0x00ff00ff) # Green
            pixbuf2.composite(pixbuf1, 12, 12, pixbuf2.get_property('width'),
                pixbuf2.get_property('height'), 0, 0, 1.0, 1.0,
                GdkPixbuf.InterpType.HYPER, 127)
            image = Gtk.Image.new_from_pixbuf(pixbuf1)
        self.model[iter_][Column.IMG] = image
        self.model[iter_][Column.TEXT] = name

    def draw_avatar(self, nick):
        if not gajim.config.get('show_avatars_in_roster'):
            return
        iter_ = self.get_contact_iter(nick)
        if not iter_:
            return
        fake_jid = self.room_jid + '/' + nick
        pixbuf = gtkgui_helpers.get_avatar_pixbuf_from_cache(fake_jid)
        if pixbuf in ('ask', None):
            scaled_pixbuf = empty_pixbuf
        else:
            scaled_pixbuf = gtkgui_helpers.get_scaled_pixbuf(pixbuf, 'roster')
            if not scaled_pixbuf:
                scaled_pixbuf = empty_pixbuf
        self.model[iter_][Column.AVATAR] = scaled_pixbuf

    def draw_role(self, role):
        role_iter = self.get_role_iter(role)
        if not role_iter:
            return
        role_name = helpers.get_uf_role(role, plural=True)
        if gajim.config.get('show_contacts_number'):
            nbr_role, nbr_total = gajim.contacts.get_nb_role_total_gc_contacts(
                self.account, self.room_jid, role)
            role_name += ' (%s/%s)' % (repr(nbr_role), repr(nbr_total))
        self.model[role_iter][Column.TEXT] = role_name

    def draw_all_roles(self):
        for role in ('visitor', 'participant', 'moderator'):
            self.draw_role(role)

    def _nec_gc_presence_received(self, obj):
        if obj.room_jid != self.room_jid or obj.conn.name != self.account:
            return
        if obj.ptype == 'error':
            return

        role = obj.role
        if not role:
            role = 'visitor'

        affiliation = obj.affiliation
        if not affiliation:
            affiliation = 'none'

        newly_created = False
        nick = i18n.direction_mark + obj.nick
        nick_jid = nick + i18n.direction_mark

        # Set to true if role or affiliation have changed
        right_changed = False

        if obj.real_jid:
            # delete ressource
            simple_jid = gajim.get_jid_without_resource(obj.real_jid)
            nick_jid += ' (%s)' % simple_jid

        # status_code
        # http://www.xmpp.org/extensions/xep-0045.html#registrar-statuscodes-\
        # init
        if obj.status_code:
            if '110' in obj.status_code:
                # We just join the room
                if self.room_jid in gajim.automatic_rooms[self.account] and \
                gajim.automatic_rooms[self.account][self.room_jid]['invities']:
                    if self.room_jid not in gajim.interface.instances[
                    self.account]['gc_config']:
                        if obj.affiliation == 'owner':
                            # We need to configure the room if it's a new one.
                            # We cannot know it's a new one. Status 201 is not
                            # sent by all servers.
                            gajim.connections[self.account].request_gc_config(
                                self.room_jid)
                        elif 'continue_tag' in gajim.automatic_rooms[
                        self.account][self.room_jid]:
                            # We just need to invite contacts
                            for jid in gajim.automatic_rooms[self.account][
                            self.room_jid]['invities']:
                                obj.conn.send_invite(self.room_jid, jid)
                                self.print_conversation(_('%(jid)s has been '
                                    'invited in this room') % {'jid': jid},
                                    graphics=False)
            if '100' in obj.status_code:
                # Can be a message (see handle_event_gc_config_change in
                # gajim.py)
                self.print_conversation(
                    _('Any occupant is allowed to see your full JID'))
                self.is_anonymous = False
            if '170' in obj.status_code:
                # Can be a message (see handle_event_gc_config_change in
                # gajim.py)
                self.print_conversation(_('Room logging is enabled'))
            if '201' in obj.status_code:
                self.print_conversation(_('A new room has been created'))
            if '210' in obj.status_code:
                self.print_conversation(\
                    _('The server has assigned or modified your roomnick'))

        if obj.show in ('offline', 'error'):
            if obj.status_code:
                if '307' in obj.status_code:
                    if obj.actor is None: # do not print 'kicked by None'
                        s = _('%(nick)s has been kicked: %(reason)s') % {
                            'nick': nick, 'reason': obj.reason}
                    else:
                        s = _('%(nick)s has been kicked by %(who)s: '
                            '%(reason)s') % {'nick': nick, 'who': obj.actor,
                            'reason': obj.reason}
                    self.print_conversation(s, 'info', graphics=False)
                    if obj.nick == self.nick and not gajim.config.get(
                    'muc_autorejoin_on_kick'):
                        self.autorejoin = False
                elif '301' in obj.status_code:
                    if obj.actor is None: # do not print 'banned by None'
                        s = _('%(nick)s has been banned: %(reason)s') % {
                            'nick': nick, 'reason': obj.reason}
                    else:
                        s = _('%(nick)s has been banned by %(who)s: '
                            '%(reason)s') % {'nick': nick, 'who': obj.actor,
                            'reason': obj.reason}
                    self.print_conversation(s, 'info', graphics=False)
                    if obj.nick == self.nick:
                        self.autorejoin = False
                elif '303' in obj.status_code: # Someone changed his or her nick
                    if obj.new_nick == self.new_nick or obj.nick == self.nick:
                        # We changed our nick
                        self.nick = obj.new_nick
                        self.new_nick = ''
                        s = _('You are now known as %s') % self.nick
                        # Stop all E2E sessions
                        nick_list = gajim.contacts.get_nick_list(self.account,
                            self.room_jid)
                        for nick_ in nick_list:
                            fjid_ = self.room_jid + '/' + nick_
                            ctrl = gajim.interface.msg_win_mgr.get_control(
                                fjid_, self.account)
                            if ctrl and ctrl.session and \
                            ctrl.session.enable_encryption:
                                thread_id = ctrl.session.thread_id
                                ctrl.session.terminate_e2e()
                                gajim.connections[self.account].delete_session(
                                    fjid_, thread_id)
                                ctrl.no_autonegotiation = False
                    else:
                        s = _('%(nick)s is now known as %(new_nick)s') % {
                            'nick': nick, 'new_nick': obj.new_nick}
                    tv = self.conv_textview
                    if obj.nick in tv.last_received_message_marks:
                        tv.last_received_message_marks[obj.new_nick] = \
                            tv.last_received_message_marks[obj.nick]
                        del tv.last_received_message_marks[obj.nick]
                    if obj.nick in self.last_received_txt:
                        self.last_received_txt[obj.new_nick] = \
                            self.last_received_txt[obj.nick]
                        del self.last_received_txt[obj.nick]
                        self.last_received_id[obj.new_nick] = \
                            self.last_received_id[obj.nick]
                        del self.last_received_id[obj.nick]
                    # We add new nick to muc roster here, so we don't see
                    # that "new_nick has joined the room" when he just changed
                    # nick.
                    # add_contact_to_roster will be called a second time
                    # after that, but that doesn't hurt
                    self.add_contact_to_roster(obj.new_nick, obj.show, role,
                        affiliation, obj.status, obj.real_jid)
                    if obj.nick in self.attention_list:
                        self.attention_list.remove(obj.nick)
                    # keep nickname color
                    if obj.nick in self.gc_custom_colors:
                        self.gc_custom_colors[obj.new_nick] = \
                            self.gc_custom_colors[obj.nick]
                    # rename vcard / avatar
                    puny_jid = helpers.sanitize_filename(self.room_jid)
                    puny_nick = helpers.sanitize_filename(obj.nick)
                    puny_new_nick = helpers.sanitize_filename(obj.new_nick)
                    old_path = os.path.join(gajim.VCARD_PATH, puny_jid,
                        puny_nick)
                    new_path = os.path.join(gajim.VCARD_PATH, puny_jid,
                        puny_new_nick)
                    files = {old_path: new_path}
                    path = os.path.join(gajim.AVATAR_PATH, puny_jid)
                    # possible extensions
                    for ext in ('.png', '.jpeg', '_notif_size_bw.png',
                    '_notif_size_colored.png'):
                        files[os.path.join(path, puny_nick + ext)] = \
                            os.path.join(path, puny_new_nick + ext)
                    for old_file in files:
                        if os.path.exists(old_file) and old_file != \
                        files[old_file]:
                            if os.path.exists(files[old_file]) and \
                            helpers.windowsify(old_file) != helpers.windowsify(
                            files[old_file]):
                                # Windows require this, but os.remove('test')
                                # will also remove 'TEST'
                                os.remove(files[old_file])
                            os.rename(old_file, files[old_file])
                    self.print_conversation(s, 'info', graphics=False)
                elif '321' in obj.status_code:
                    s = _('%(nick)s has been removed from the room '
                        '(%(reason)s)') % { 'nick': nick,
                        'reason': _('affiliation changed') }
                    self.print_conversation(s, 'info', graphics=False)
                elif '322' in obj.status_code:
                    s = _('%(nick)s has been removed from the room '
                        '(%(reason)s)') % { 'nick': nick,
                        'reason': _('room configuration changed to '
                        'members-only') }
                    self.print_conversation(s, 'info', graphics=False)
                elif '332' in obj.status_code:
                    s = _('%(nick)s has been removed from the room '
                        '(%(reason)s)') % {'nick': nick,
                        'reason': _('system shutdown') }
                    self.print_conversation(s, 'info', graphics=False)
                # Room has been destroyed.
                elif 'destroyed' in obj.status_code:
                    self.autorejoin = False
                    self.print_conversation(obj.reason, 'info', graphics=False)

            if len(gajim.events.get_events(self.account, jid=obj.fjid,
            types=['pm'])) == 0:
                self.remove_contact(obj.nick)
                self.draw_all_roles()
            else:
                c = gajim.contacts.get_gc_contact(self.account, self.room_jid,
                    obj.nick)
                c.show = obj.show
                c.status = obj.status
            if obj.nick == self.nick and (not obj.status_code or \
            '303' not in obj.status_code): # We became offline
                self.got_disconnected()
                contact = gajim.contacts.\
                    get_contact_with_highest_priority(self.account,
                    self.room_jid)
                if contact:
                    gajim.interface.roster.draw_contact(self.room_jid,
                        self.account)
                if self.parent_win:
                    self.parent_win.redraw_tab(self)
        else:
            iter_ = self.get_contact_iter(obj.nick)
            if not iter_:
                if '210' in obj.status_code:
                    # Server changed our nick
                    self.nick = obj.nick
                    s = _('You are now known as %s') % nick
                    self.print_conversation(s, 'info', graphics=False)
                iter_ = self.add_contact_to_roster(obj.nick, obj.show, role,
                    affiliation, obj.status, obj.real_jid)
                newly_created = True
                self.draw_all_roles()
                if obj.status_code and '201' in obj.status_code:
                    # We just created the room
                    gajim.connections[self.account].request_gc_config(
                        self.room_jid)
            else:
                gc_c = gajim.contacts.get_gc_contact(self.account,
                    self.room_jid, obj.nick)
                if not gc_c:
                    log.error('%s has an iter, but no gc_contact instance' % \
                        obj.nick)
                    return
                # Re-get vcard if avatar has changed
                # We do that here because we may request it to the real JID if
                # we knows it. connections.py doesn't know it.
                con = gajim.connections[self.account]
                if gc_c and gc_c.jid:
                    real_jid = gc_c.jid
                else:
                    real_jid = obj.fjid
                if obj.fjid in obj.conn.vcard_shas:
                    if obj.avatar_sha != obj.conn.vcard_shas[obj.fjid]:
                        server = gajim.get_server_from_jid(self.room_jid)
                        if not server.startswith('irc'):
                            obj.conn.request_vcard(real_jid, obj.fjid)
                else:
                    cached_vcard = obj.conn.get_cached_vcard(obj.fjid, True)
                    if cached_vcard and 'PHOTO' in cached_vcard and \
                    'SHA' in cached_vcard['PHOTO']:
                        cached_sha = cached_vcard['PHOTO']['SHA']
                    else:
                        cached_sha = ''
                    if cached_sha != obj.avatar_sha:
                        # avatar has been updated
                        # sha in mem will be updated later
                        server = gajim.get_server_from_jid(self.room_jid)
                        if not server.startswith('irc'):
                            obj.conn.request_vcard(real_jid, obj.fjid)
                    else:
                        # save sha in mem NOW
                        obj.conn.vcard_shas[obj.fjid] = obj.avatar_sha

                actual_affiliation = gc_c.affiliation
                if affiliation != actual_affiliation:
                    if obj.actor:
                        st = _('** Affiliation of %(nick)s has been set to '
                            '%(affiliation)s by %(actor)s') % {'nick': nick_jid,
                            'affiliation': affiliation, 'actor': obj.actor}
                    else:
                        st = _('** Affiliation of %(nick)s has been set to '
                            '%(affiliation)s') % {'nick': nick_jid,
                            'affiliation': affiliation}
                    if obj.reason:
                        st += ' (%s)' % obj.reason
                    self.print_conversation(st, graphics=False)
                    right_changed = True
                actual_role = self.get_role(obj.nick)
                if role != actual_role:
                    self.remove_contact(obj.nick)
                    self.add_contact_to_roster(obj.nick, obj.show, role,
                        affiliation, obj.status, obj.real_jid)
                    self.draw_role(actual_role)
                    self.draw_role(role)
                    if obj.actor:
                        st = _('** Role of %(nick)s has been set to %(role)s '
                            'by %(actor)s') % {'nick': nick_jid, 'role': role,
                            'actor': obj.actor}
                    else:
                        st = _('** Role of %(nick)s has been set to '
                            '%(role)s') % {'nick': nick_jid, 'role': role}
                    if obj.reason:
                        st += ' (%s)' % obj.reason
                    self.print_conversation(st, graphics=False)
                    right_changed = True
                else:
                    if gc_c.show == obj.show and gc_c.status == obj.status and \
                    gc_c.affiliation == affiliation: # no change
                        return
                    gc_c.show = obj.show
                    gc_c.affiliation = affiliation
                    gc_c.status = obj.status
                    self.draw_contact(obj.nick)
        if (time.time() - self.room_creation) > 30 and obj.nick != self.nick \
        and (not obj.status_code or '303' not in obj.status_code) and not \
        right_changed:
            st = ''
            print_status = None
            for bookmark in gajim.connections[self.account].bookmarks:
                if bookmark['jid'] == self.room_jid:
                    print_status = bookmark.get('print_status', None)
                    break
            if not print_status:
                print_status = gajim.config.get('print_status_in_muc')
            if obj.show == 'offline':
                if obj.nick in self.attention_list:
                    self.attention_list.remove(obj.nick)
            if obj.show == 'offline' and print_status in ('all', 'in_and_out') \
            and (not obj.status_code or '307' not in obj.status_code):
                st = _('%s has left') % nick_jid
                if obj.reason:
                    st += ' [%s]' % obj.reason
            else:
                if newly_created and print_status in ('all', 'in_and_out'):
                    st = _('%s has joined the group chat') % nick_jid
                elif print_status == 'all':
                    st = _('%(nick)s is now %(status)s') % {'nick': nick_jid,
                        'status': helpers.get_uf_show(obj.show)}
            if st:
                if obj.status:
                    st += ' (' + obj.status + ')'
                self.print_conversation(st, graphics=False)

    def add_contact_to_roster(self, nick, show, role, affiliation, status,
    jid=''):
        role_name = helpers.get_uf_role(role, plural=True)

        resource = ''
        if jid:
            jids = jid.split('/', 1)
            j = jids[0]
            if len(jids) > 1:
                resource = jids[1]
        else:
            j = ''

        name = nick

        role_iter = self.get_role_iter(role)
        if not role_iter:
            role_iter = self.model.append(None,
                [gajim.interface.jabber_state_images['16']['closed'], role,
                'role', role_name,  None] + [None] * self.nb_ext_renderers)
            self.draw_all_roles()
        iter_ = self.model.append(role_iter, [None, nick, 'contact', name, None] + \
                [None] * self.nb_ext_renderers)
        if not nick in gajim.contacts.get_nick_list(self.account,
        self.room_jid):
            gc_contact = gajim.contacts.create_gc_contact(
                room_jid=self.room_jid, account=self.account,
                name=nick, show=show, status=status, role=role,
                affiliation=affiliation, jid=j, resource=resource)
            gajim.contacts.add_gc_contact(self.account, gc_contact)
        self.draw_contact(nick)
        self.draw_avatar(nick)
        # Do not ask avatar to irc rooms as irc transports reply with messages
        server = gajim.get_server_from_jid(self.room_jid)
        if gajim.config.get('ask_avatars_on_startup') and \
        not server.startswith('irc'):
            fake_jid = self.room_jid + '/' + nick
            pixbuf = gtkgui_helpers.get_avatar_pixbuf_from_cache(fake_jid)
            if pixbuf == 'ask':
                if j and not self.is_anonymous:
                    gajim.connections[self.account].request_vcard(j, fake_jid)
                else:
                    gajim.connections[self.account].request_vcard(fake_jid,
                        fake_jid)
        if nick == self.nick: # we became online
            self.got_connected()
        if self.list_treeview.get_model():
            self.list_treeview.expand_row((self.model.get_path(role_iter)), False)
        if self.is_continued:
            self.draw_banner_text()
        return iter_

    def get_role_iter(self, role):
        role_iter = self.model.get_iter_first()
        while role_iter:
            role_name = self.model[role_iter][Column.NICK]
            if role == role_name:
                return role_iter
            role_iter = self.model.iter_next(role_iter)
        return None

    def remove_contact(self, nick):
        """
        Remove a user from the contacts_list
        """
        iter_ = self.get_contact_iter(nick)
        if not iter_:
            return
        gc_contact = gajim.contacts.get_gc_contact(self.account, self.room_jid,
                nick)
        if gc_contact:
            gajim.contacts.remove_gc_contact(self.account, gc_contact)
        parent_iter = self.model.iter_parent(iter_)
        self.model.remove(iter_)
        if self.model.iter_n_children(parent_iter) == 0:
            self.model.remove(parent_iter)

    def send_message(self, message, xhtml=None, process_commands=True):
        """
        Call this function to send our message
        """
        if not message:
            return

        if process_commands and self.process_as_command(message):
            return

        message = helpers.remove_invalid_xml_chars(message)

        if not message:
            return

        label = self.get_seclabel()
        if message != '' or message != '\n':
            self.save_message(message, 'sent')

            def _cb(msg, msg_txt):
                # we'll save sent message text when we'll receive it in
                # _nec_gc_message_received
                self.last_sent_msg = msg
                if self.correcting:
                    self.correcting = False
                    gtkgui_helpers.remove_css_class(
                        self.msg_textview, 'msgcorrectingcolor')

            if self.correcting and self.last_sent_msg:
                correction_msg = self.last_sent_msg
            else:
                correction_msg = None
            # Send the message
            gajim.nec.push_outgoing_event(GcMessageOutgoingEvent(None,
                account=self.account, jid=self.room_jid, message=message,
                xhtml=xhtml, label=label, callback=_cb,
                callback_args=[_cb] + [message], correction_msg=correction_msg,
                automatic_message=False))
            self.msg_textview.get_buffer().set_text('')
            self.msg_textview.grab_focus()

    def get_role(self, nick):
        gc_contact = gajim.contacts.get_gc_contact(self.account, self.room_jid,
                nick)
        if gc_contact:
            return gc_contact.role
        else:
            return 'visitor'

    def minimizable(self):
        if self.force_non_minimizable:
            return False
        if self.contact.jid not in gajim.config.get_per('accounts', self.account,
        'non_minimized_gc').split(' '):
            return True
        return False

    def minimize(self, status='offline'):
        # Minimize it
        win = gajim.interface.msg_win_mgr.get_window(self.contact.jid,
                self.account)
        ctrl = win.get_control(self.contact.jid, self.account)

        ctrl_page = win.notebook.page_num(ctrl.widget)
        control = win.notebook.get_nth_page(ctrl_page)

        win.notebook.remove_page(ctrl_page)
        control.unparent()
        ctrl.parent_win = None

        gajim.interface.roster.add_groupchat(self.contact.jid, self.account,
            status = self.subject)

        del win._controls[self.account][self.contact.jid]

    def shutdown(self, status='offline'):
        # PluginSystem: calling shutdown of super class (ChatControlBase)
        # to let it remove it's GUI extension points
        super(GroupchatControl, self).shutdown()
        # PluginSystem: removing GUI extension points connected with
        # GrouphatControl instance object
        gajim.plugin_manager.remove_gui_extension_point('groupchat_control',
            self)

        # Preventing autorejoin from being activated
        self.autorejoin = False

        gajim.ged.remove_event_handler('gc-presence-received', ged.GUI1,
            self._nec_gc_presence_received)
        gajim.ged.remove_event_handler('gc-message-received', ged.GUI1,
            self._nec_gc_message_received)
        gajim.ged.remove_event_handler('vcard-published', ged.GUI1,
            self._nec_vcard_published)
        gajim.ged.remove_event_handler('vcard-received', ged.GUI1,
            self._nec_vcard_received)
        gajim.ged.remove_event_handler('gc-subject-received', ged.GUI1,
            self._nec_gc_subject_received)
        gajim.ged.remove_event_handler('gc-config-changed-received', ged.GUI1,
            self._nec_gc_config_changed_received)
        gajim.ged.remove_event_handler('signed-in', ged.GUI1,
            self._nec_signed_in)
        gajim.ged.remove_event_handler('decrypted-message-received', ged.GUI2,
            self._nec_decrypted_message_received)

        if self.room_jid in gajim.gc_connected[self.account] and \
        gajim.gc_connected[self.account][self.room_jid]:
            # Tell connection to note the date we disconnect to avoid duplicate
            # logs. We do it only when connected because if connection was lost
            # there may be new messages since disconnection.
            gajim.connections[self.account].gc_got_disconnected(self.room_jid)
            gajim.connections[self.account].send_gc_status(self.nick,
                self.room_jid, show='offline', status=status)
        nick_list = gajim.contacts.get_nick_list(self.account, self.room_jid)
        for nick in nick_list:
            # Update pm chat window
            fjid = self.room_jid + '/' + nick
            ctrl = gajim.interface.msg_win_mgr.get_gc_control(fjid,
                self.account)
            if ctrl:
                contact = gajim.contacts.get_gc_contact(self.account,
                    self.room_jid, nick)
                contact.show = 'offline'
                contact.status = ''
                ctrl.update_ui()
                ctrl.parent_win.redraw_tab(ctrl)
            for sess in gajim.connections[self.account].get_sessions(fjid):
                if sess.control:
                    sess.control.no_autonegotiation = False
                if sess.enable_encryption:
                    sess.terminate_e2e()
                    gajim.connections[self.account].delete_session(fjid,
                        sess.thread_id)
        # They can already be removed by the destroy function
        if self.room_jid in gajim.contacts.get_gc_list(self.account):
            gajim.contacts.remove_room(self.account, self.room_jid)
            del gajim.gc_connected[self.account][self.room_jid]
        # Save hpaned position
        gajim.config.set('gc-hpaned-position', self.hpaned.get_position())
        # remove all register handlers on wigets, created by self.xml
        # to prevent circular references among objects
        for i in list(self.handlers.keys()):
            if self.handlers[i].handler_is_connected(i):
                self.handlers[i].disconnect(i)
            del self.handlers[i]
        # Remove unread events from systray
        gajim.events.remove_events(self.account, self.room_jid)

    def safe_shutdown(self):
        if self.minimizable():
            return True
        includes = gajim.config.get('confirm_close_muc_rooms').split(' ')
        excludes = gajim.config.get('noconfirm_close_muc_rooms').split(' ')
        # whether to ask for comfirmation before closing muc
        if (gajim.config.get('confirm_close_muc') or self.room_jid in includes)\
        and gajim.gc_connected[self.account][self.room_jid] and self.room_jid \
        not in excludes:
            return False
        return True

    def allow_shutdown(self, method, on_yes, on_no, on_minimize):
        if self.minimizable():
            on_minimize(self)
            return
        if method == self.parent_win.CLOSE_ESC:
            iter_ = self.list_treeview.get_selection().get_selected()[1]
            if iter_:
                self.list_treeview.get_selection().unselect_all()
                on_no(self)
                return
        includes = gajim.config.get('confirm_close_muc_rooms').split(' ')
        excludes = gajim.config.get('noconfirm_close_muc_rooms').split(' ')
        # whether to ask for comfirmation before closing muc
        if (gajim.config.get('confirm_close_muc') or self.room_jid in includes)\
        and gajim.gc_connected[self.account][self.room_jid] and self.room_jid \
        not in excludes:

            def on_ok(clicked):
                if clicked:
                    # user does not want to be asked again
                    gajim.config.set('confirm_close_muc', False)
                on_yes(self)

            def on_cancel(clicked):
                if clicked:
                    # user does not want to be asked again
                    gajim.config.set('confirm_close_muc', False)
                on_no(self)

            pritext = _('Are you sure you want to leave group chat "%s"?')\
                % self.name
            sectext = _('If you close this window, you will be disconnected '
                'from this group chat.')

            dialogs.ConfirmationDialogCheck(pritext, sectext,
                _('_Do not ask me again'), on_response_ok=on_ok,
                on_response_cancel=on_cancel,
                transient_for=self.parent_win.window)
            return

        on_yes(self)

    def set_control_active(self, state):
        self.conv_textview.allow_focus_out_line = True
        self.attention_flag = False
        ChatControlBase.set_control_active(self, state)
        if not state:
            # add the focus-out line to the tab we are leaving
            self.check_and_possibly_add_focus_out_line()
        # Sending active to undo unread state
        self.parent_win.redraw_tab(self, 'active')

    def get_specific_unread(self):
        # returns the number of the number of unread msgs
        # for room_jid & number of unread private msgs with each contact
        # that we have
        nb = 0
        for nick in gajim.contacts.get_nick_list(self.account, self.room_jid):
            fjid = self.room_jid + '/' + nick
            nb += len(gajim.events.get_events(self.account, fjid))
            # gc can only have messages as event
        return nb

    def _on_change_subject_menuitem_activate(self, widget):
        def on_ok(subject):
            # Note, we don't update self.subject since we don't know whether it
            # will work yet
            gajim.connections[self.account].send_gc_subject(self.room_jid,
                subject)

        dialogs.InputTextDialog(_('Changing Subject'),
            _('Please specify the new subject:'), input_str=self.subject,
            ok_handler=on_ok, transient_for=self.parent_win.window)

    def _on_disconnect_menuitem_activate(self, widget):
        self.force_non_minimizable = True
        self.parent_win.remove_tab(self, self.parent_win.CLOSE_COMMAND)
        self.force_non_minimizable = False
    
    def _on_change_nick_menuitem_activate(self, widget):
        if 'change_nick_dialog' in gajim.interface.instances:
            gajim.interface.instances['change_nick_dialog'].dialog.present()
        else:
            title = _('Changing Nickname')
            prompt = _('Please specify the new nickname you want to use:')
            gajim.interface.instances['change_nick_dialog'] = \
                dialogs.ChangeNickDialog(self.account, self.room_jid, title,
                prompt, change_nick=True, transient_for=self.parent_win.window)

    def _on_configure_room_menuitem_activate(self, widget):
        c = gajim.contacts.get_gc_contact(self.account, self.room_jid,
            self.nick)
        if c.affiliation == 'owner':
            gajim.connections[self.account].request_gc_config(self.room_jid)
        elif c.affiliation == 'admin':
            if self.room_jid not in gajim.interface.instances[self.account][
            'gc_config']:
                gajim.interface.instances[self.account]['gc_config'][
                    self.room_jid] = config.GroupchatConfigWindow(self.account,
                    self.room_jid)

    def _on_destroy_room_menuitem_activate(self, widget):
        def on_ok(reason, jid):
            if jid:
                # Test jid
                try:
                    jid = helpers.parse_jid(jid)
                except Exception:
                    dialogs.ErrorDialog(_('Invalid group chat JID'),
                    _('The group chat JID has not allowed characters.'))
                    return
            gajim.connections[self.account].destroy_gc_room(self.room_jid,
                reason, jid)

        # Ask for a reason
        dialogs.DoubleInputDialog(_('Destroying %s') % '\u200E' + \
            self.room_jid, _('You are going to remove this room permanently.'
            '\nYou may specify a reason below:'),
            _('You may also enter an alternate venue:'), ok_handler=on_ok,
            transient_for=self.parent_win.window)

    def _on_bookmark_room_menuitem_activate(self, widget):
        """
        Bookmark the room, without autojoin and not minimized
        """
        password = gajim.gc_passwords.get(self.room_jid, '')
        gajim.interface.add_gc_bookmark(self.account, self.name, self.room_jid,\
            '0', '0', password, self.nick)

    def _on_request_voice_menuitem_activate(self, widget):
        """
        Request voice in the current room
        """
        gajim.connections[self.account].request_voice(self.room_jid)

    def _on_drag_data_received(self, widget, context, x, y, selection,
    target_type, timestamp):
        # Invite contact to groupchat
        treeview = gajim.interface.roster.tree
        model = treeview.get_model()
        if not selection.get_data() or target_type == 80:
            #  target_type = 80 means a file is dropped
            return
        data = selection.get_data()
        path = treeview.get_selection().get_selected_rows()[1][0]
        iter_ = model.get_iter(path)
        type_ = model[iter_][2]
        if type_ != 'contact': # source is not a contact
            return
        contact_jid = data
        gajim.connections[self.account].send_invite(self.room_jid, contact_jid)
        self.print_conversation(_('%(jid)s has been invited in this room') % {
            'jid': contact_jid}, graphics=False)

    def _on_message_textview_key_press_event(self, widget, event):
        res = ChatControlBase._on_message_textview_key_press_event(self, widget,
            event)
        if res:
            return True

        if event.keyval == Gdk.KEY_Tab: # TAB
            message_buffer = widget.get_buffer()
            start_iter, end_iter = message_buffer.get_bounds()
            cursor_position = message_buffer.get_insert()
            end_iter = message_buffer.get_iter_at_mark(cursor_position)
            text = message_buffer.get_text(start_iter, end_iter, False)

            splitted_text = text.split()

            # nick completion
            # check if tab is pressed with empty message
            if len(splitted_text): # if there are any words
                begin = splitted_text[-1] # last word we typed
            else:
                begin = ''

            gc_refer_to_nick_char = gajim.config.get('gc_refer_to_nick_char')
            with_refer_to_nick_char = False
            after_nick_len = 1 # the space that is printed after we type [Tab]

            # first part of this if : works fine even if refer_to_nick_char
            if gc_refer_to_nick_char and text.endswith(
            gc_refer_to_nick_char + ' '):
                with_refer_to_nick_char = True
                after_nick_len = len(gc_refer_to_nick_char + ' ')
            if len(self.nick_hits) and self.last_key_tabs and \
               text[:-after_nick_len].endswith(self.nick_hits[0]):
                # we should cycle
                # Previous nick in list may had a space inside, so we check text
                # and not splitted_text and store it into 'begin' var
                self.nick_hits.append(self.nick_hits[0])
                begin = self.nick_hits.pop(0)
            else:
                self.nick_hits = [] # clear the hit list
                list_nick = gajim.contacts.get_nick_list(self.account,
                                                         self.room_jid)
                list_nick.sort(key=str.lower) # case-insensitive sort
                if begin == '':
                    # empty message, show lasts nicks that highlighted us first
                    for nick in self.attention_list:
                        if nick in list_nick:
                            list_nick.remove(nick)
                        list_nick.insert(0, nick)

                list_nick.remove(self.nick) # Skip self
                for nick in list_nick:
                    fjid = self.room_jid + '/' + nick
                    if nick.lower().startswith(begin.lower()) and not \
                       helpers.jid_is_blocked(self.account, fjid):
                        # the word is the begining of a nick
                        self.nick_hits.append(nick)
            if len(self.nick_hits):
                if len(splitted_text) < 2 or with_refer_to_nick_char:
                # This is the 1st word of the line or no word or we are cycling
                # at the beginning, possibly with a space in one nick
                    add = gc_refer_to_nick_char + ' '
                else:
                    add = ' '
                start_iter = end_iter.copy()
                if self.last_key_tabs and with_refer_to_nick_char or (text and \
                                                                      text[-1] == ' '):
                    # have to accomodate for the added space from last
                    # completion
                    # gc_refer_to_nick_char may be more than one char!
                    start_iter.backward_chars(len(begin) + len(add))
                elif self.last_key_tabs and not gajim.config.get(
                    'shell_like_completion'):
                    # have to accomodate for the added space from last
                    # completion
                    start_iter.backward_chars(len(begin) + \
                                              len(gc_refer_to_nick_char))
                else:
                    start_iter.backward_chars(len(begin))

                message_buffer.delete(start_iter, end_iter)
                # get a shell-like completion
                # if there's more than one nick for this completion, complete
                # only the part that all these nicks have in common
                if gajim.config.get('shell_like_completion') and \
                len(self.nick_hits) > 1:
                    end = False
                    completion = ''
                    add = "" # if nick is not complete, don't add anything
                    while not end and len(completion) < len(self.nick_hits[0]):
                        completion = self.nick_hits[0][:len(completion)+1]
                        for nick in self.nick_hits:
                            if completion.lower() not in nick.lower():
                                end = True
                                completion = completion[:-1]
                                break
                    # if the current nick matches a COMPLETE existing nick,
                    # and if the user tab TWICE, complete that nick (with the
                    # "add")
                    if self.last_key_tabs:
                        for nick in self.nick_hits:
                            if nick == completion:
                                # The user seems to want this nick, so
                                # complete it as if it were the only nick
                                # available
                                add = gc_refer_to_nick_char + ' '
                else:
                    completion = self.nick_hits[0]
                message_buffer.insert_at_cursor(completion + add)
                self.last_key_tabs = True
                return True
            self.last_key_tabs = False

    def on_list_treeview_key_press_event(self, widget, event):
        if event.keyval == Gdk.KEY_Escape:
            selection = widget.get_selection()
            iter_ = selection.get_selected()[1]
            if iter_:
                widget.get_selection().unselect_all()
                return True

    def on_list_treeview_row_expanded(self, widget, iter_, path):
        """
        When a row is expanded: change the icon of the arrow
        """
        model = widget.get_model()
        image = gajim.interface.jabber_state_images['16']['opened']
        model[iter_][Column.IMG] = image

    def on_list_treeview_row_collapsed(self, widget, iter_, path):
        """
        When a row is collapsed: change the icon of the arrow
        """
        model = widget.get_model()
        image = gajim.interface.jabber_state_images['16']['closed']
        model[iter_][Column.IMG] = image

    def kick(self, widget, nick):
        """
        Kick a user
        """
        def on_ok(reason):
            gajim.connections[self.account].gc_set_role(self.room_jid, nick,
                'none', reason)

        # ask for reason
        dialogs.InputDialog(_('Kicking %s') % nick,
            _('You may specify a reason below:'), ok_handler=on_ok,
            transient_for=self.parent_win.window)

    def mk_menu(self, event, iter_):
        """
        Make contact's popup menu
        """
        nick = self.model[iter_][Column.NICK]
        c = gajim.contacts.get_gc_contact(self.account, self.room_jid, nick)
        fjid = self.room_jid + '/' + nick
        jid = c.jid
        target_affiliation = c.affiliation
        target_role = c.role

        # looking for user's affiliation and role
        user_nick = self.nick
        user_affiliation = gajim.contacts.get_gc_contact(self.account,
            self.room_jid, user_nick).affiliation
        user_role = self.get_role(user_nick)

        # making menu from gtk builder
        xml = gtkgui_helpers.get_gtk_builder('gc_occupants_menu.ui')

        # these conditions were taken from JEP 0045
        item = xml.get_object('kick_menuitem')
        if user_role != 'moderator' or \
        (user_affiliation == 'admin' and target_affiliation == 'owner') or \
        (user_affiliation == 'member' and target_affiliation in ('admin',
        'owner')) or (user_affiliation == 'none' and target_affiliation != \
        'none'):
            item.set_sensitive(False)
        id_ = item.connect('activate', self.kick, nick)
        self.handlers[id_] = item

        item = xml.get_object('voice_checkmenuitem')
        item.set_active(target_role != 'visitor')
        if user_role != 'moderator' or \
        user_affiliation == 'none' or \
        (user_affiliation=='member' and target_affiliation!='none') or \
        target_affiliation in ('admin', 'owner'):
            item.set_sensitive(False)
        id_ = item.connect('activate', self.on_voice_checkmenuitem_activate,
            nick)
        self.handlers[id_] = item

        item = xml.get_object('moderator_checkmenuitem')
        item.set_active(target_role == 'moderator')
        if not user_affiliation in ('admin', 'owner') or \
        target_affiliation in ('admin', 'owner'):
            item.set_sensitive(False)
        id_ = item.connect('activate', self.on_moderator_checkmenuitem_activate,
            nick)
        self.handlers[id_] = item

        item = xml.get_object('ban_menuitem')
        if not user_affiliation in ('admin', 'owner') or \
        (target_affiliation in ('admin', 'owner') and\
        user_affiliation != 'owner'):
            item.set_sensitive(False)
        id_ = item.connect('activate', self.ban, jid)
        self.handlers[id_] = item

        item = xml.get_object('member_checkmenuitem')
        item.set_active(target_affiliation != 'none')
        if not user_affiliation in ('admin', 'owner') or \
        (user_affiliation != 'owner' and target_affiliation in ('admin',
        'owner')):
            item.set_sensitive(False)
        id_ = item.connect('activate', self.on_member_checkmenuitem_activate,
            jid)
        self.handlers[id_] = item

        item = xml.get_object('admin_checkmenuitem')
        item.set_active(target_affiliation in ('admin', 'owner'))
        if not user_affiliation == 'owner':
            item.set_sensitive(False)
        id_ = item.connect('activate', self.on_admin_checkmenuitem_activate,
            jid)
        self.handlers[id_] = item

        item = xml.get_object('owner_checkmenuitem')
        item.set_active(target_affiliation == 'owner')
        if not user_affiliation == 'owner':
            item.set_sensitive(False)
        id_ = item.connect('activate', self.on_owner_checkmenuitem_activate,
            jid)
        self.handlers[id_] = item

        item = xml.get_object('invite_menuitem')
        if jid and c.name != self.nick:
            bookmarked = False
            contact = gajim.contacts.get_contact(self.account, jid, c.resource)
            if contact and contact.supports(nbxmpp.NS_CONFERENCE):
                bookmarked=True
            gui_menu_builder.build_invite_submenu(item, ((c, self.account),),
                ignore_rooms=[self.room_jid], show_bookmarked=bookmarked)
        else:
            item.set_sensitive(False)

        item = xml.get_object('information_menuitem')
        id_ = item.connect('activate', self.on_info, nick)
        self.handlers[id_] = item

        item = xml.get_object('history_menuitem')
        id_ = item.connect('activate', self.on_history, nick)
        self.handlers[id_] = item

        item = xml.get_object('add_to_roster_menuitem')
        our_jid = gajim.get_jid_from_account(self.account)
        if not jid or jid == our_jid or not gajim.connections[self.account].\
        roster_supported:
            item.set_sensitive(False)
        else:
            id_ = item.connect('activate', self.on_add_to_roster, jid)
            self.handlers[id_] = item

        item = xml.get_object('block_menuitem')
        item2 = xml.get_object('unblock_menuitem')
        if helpers.jid_is_blocked(self.account, fjid):
            item.set_no_show_all(True)
            item.hide()
            id_ = item2.connect('activate', self.on_unblock, nick)
            self.handlers[id_] = item2
        else:
            id_ = item.connect('activate', self.on_block, nick)
            self.handlers[id_] = item
            item2.set_no_show_all(True)
            item2.hide()

        item = xml.get_object('send_private_message_menuitem')
        id_ = item.connect('activate', self.on_send_pm, self.model, iter_)
        self.handlers[id_] = item

        item = xml.get_object('send_file_menuitem')
        if not c.resource:
            item.set_sensitive(False)
        else:
            id_ = item.connect('activate', self.on_send_file, c)
            self.handlers[id_] = item

        # show the popup now!
        menu = xml.get_object('gc_occupants_menu')
        menu.show_all()
        menu.attach_to_widget(gajim.interface.roster.window, None)
        menu.popup(None, None, None, None, event.button, event.time)

    def _start_private_message(self, nick):
        gc_c = gajim.contacts.get_gc_contact(self.account, self.room_jid, nick)
        nick_jid = gc_c.get_full_jid()

        ctrl = gajim.interface.msg_win_mgr.get_control(nick_jid, self.account)
        if not ctrl:
            ctrl = gajim.interface.new_private_chat(gc_c, self.account)

        if ctrl:
            ctrl.parent_win.set_active_tab(ctrl)

        return ctrl

    def on_row_activated(self, widget, path):
        """
        When an iter is activated (dubblick or single click if gnome is set this
        way
        """
        if path.get_depth() == 1: # It's a group
            if (widget.row_expanded(path)):
                widget.collapse_row(path)
            else:
                widget.expand_row(path, False)
        else: # We want to send a private message
            nick = self.model[path][Column.NICK]
            self._start_private_message(nick)

    def on_list_treeview_row_activated(self, widget, path, col=0):
        """
        When an iter is double clicked: open the chat window
        """
        if not gajim.single_click:
            self.on_row_activated(widget, path)

    def on_list_treeview_button_press_event(self, widget, event):
        """
        Popup user's group's or agent menu
        """
        try:
            pos = widget.get_path_at_pos(int(event.x), int(event.y))
            path, x = pos[0], pos[2]
        except TypeError:
            widget.get_selection().unselect_all()
            return
        if event.button == 3: # right click
            widget.get_selection().select_path(path)
            iter_ = self.model.get_iter(path)
            if path.get_depth() == 2:
                self.mk_menu(event, iter_)
            return True

        elif event.button == 2: # middle click
            widget.get_selection().select_path(path)
            iter_ = self.model.get_iter(path)
            if path.get_depth() == 2:
                nick = self.model[iter_][Column.NICK]
                self._start_private_message(nick)
            return True

        elif event.button == 1: # left click
            if gajim.single_click and not event.get_state() & Gdk.ModifierType.SHIFT_MASK:
                self.on_row_activated(widget, path)
                return True
            else:
                iter_ = self.model.get_iter(path)
                nick = self.model[iter_][Column.NICK]
                if not nick in gajim.contacts.get_nick_list(self.account,
                self.room_jid):
                    # it's a group
                    if x < 27:
                        if (widget.row_expanded(path)):
                            widget.collapse_row(path)
                        else:
                            widget.expand_row(path, False)
                elif event.get_state() & Gdk.ModifierType.SHIFT_MASK:
                    self.append_nick_in_msg_textview(self.msg_textview, nick)
                    self.msg_textview.grab_focus()
                    return True

    def append_nick_in_msg_textview(self, widget, nick):
        message_buffer = self.msg_textview.get_buffer()
        start_iter, end_iter = message_buffer.get_bounds()
        cursor_position = message_buffer.get_insert()
        end_iter = message_buffer.get_iter_at_mark(cursor_position)
        text = message_buffer.get_text(start_iter, end_iter, False)
        start = ''
        if text: # Cursor is not at first position
            if not text[-1] in (' ', '\n', '\t'):
                start = ' '
            add = ' '
        else:
            gc_refer_to_nick_char = gajim.config.get('gc_refer_to_nick_char')
            add = gc_refer_to_nick_char + ' '
        message_buffer.insert_at_cursor(start + nick + add)

    def grant_voice(self, widget, nick):
        """
        Grant voice privilege to a user
        """
        gajim.connections[self.account].gc_set_role(self.room_jid, nick,
            'participant')

    def revoke_voice(self, widget, nick):
        """
        Revoke voice privilege to a user
        """
        gajim.connections[self.account].gc_set_role(self.room_jid, nick,
            'visitor')

    def grant_moderator(self, widget, nick):
        """
        Grant moderator privilege to a user
        """
        gajim.connections[self.account].gc_set_role(self.room_jid, nick,
            'moderator')

    def revoke_moderator(self, widget, nick):
        """
        Revoke moderator privilege to a user
        """
        gajim.connections[self.account].gc_set_role(self.room_jid, nick,
            'participant')

    def ban(self, widget, jid):
        """
        Ban a user
        """
        def on_ok(reason):
            gajim.connections[self.account].gc_set_affiliation(self.room_jid,
                jid, 'outcast', reason)

        # to ban we know the real jid. so jid is not fakejid
        nick = gajim.get_nick_from_jid(jid)
        # ask for reason
        dialogs.InputDialog(_('Banning %s') % nick,
            _('You may specify a reason below:'), ok_handler=on_ok,
            transient_for=self.parent_win.window)

    def grant_membership(self, widget, jid):
        """
        Grant membership privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'member')

    def revoke_membership(self, widget, jid):
        """
        Revoke membership privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'none')

    def grant_admin(self, widget, jid):
        """
        Grant administrative privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'admin')

    def revoke_admin(self, widget, jid):
        """
        Revoke administrative privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'member')

    def grant_owner(self, widget, jid):
        """
        Grant owner privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'owner')

    def revoke_owner(self, widget, jid):
        """
        Revoke owner privilege to a user
        """
        gajim.connections[self.account].gc_set_affiliation(self.room_jid, jid,
            'admin')

    def on_info(self, widget, nick):
        """
         Call vcard_information_window class to display user's information
        """
        gc_contact = gajim.contacts.get_gc_contact(self.account, self.room_jid,
            nick)
        contact = gc_contact.as_contact()
        if contact.jid in gajim.interface.instances[self.account]['infos']:
            gajim.interface.instances[self.account]['infos'][contact.jid].\
                window.present()
        else:
            gajim.interface.instances[self.account]['infos'][contact.jid] = \
                vcard.VcardWindow(contact, self.account, gc_contact)

    def on_history(self, widget, nick):
        jid = gajim.construct_fjid(self.room_jid, nick)
        self._on_history_menuitem_activate(widget=widget, jid=jid)

    def on_add_to_roster(self, widget, jid):
        dialogs.AddNewContactWindow(self.account, jid)

    def on_block(self, widget, nick):
        fjid = self.room_jid + '/' + nick
        connection = gajim.connections[self.account]
        default = connection.privacy_default_list
        if fjid in connection.blocked_contacts:
            return
        max_order = connection.get_max_blocked_list_order()
        new_rule = {'order': str(max_order + 1), 'type': 'jid',
            'action': 'deny', 'value' : fjid, 'child': ['message', 'iq',
            'presence-out']}
        connection.blocked_list.append(new_rule)
        connection.blocked_contacts.append(fjid)
        self.draw_contact(nick)
        connection.set_privacy_list(default, connection.blocked_list)
        if len(connection.blocked_list) == 1:
            connection.set_default_list(default)

    def on_unblock(self, widget, nick):
        fjid = self.room_jid + '/' + nick
        connection = gajim.connections[self.account]
        default = connection.privacy_default_list
        connection.new_blocked_list = []
        # needed for draw_contact:
        if fjid in connection.blocked_contacts:
            connection.blocked_contacts.remove(fjid)
        self.draw_contact(nick)
        for rule in connection.blocked_list:
            if rule['action'] != 'deny' or rule['type'] != 'jid' \
            or rule['value'] != fjid:
                connection.new_blocked_list.append(rule)

        if len(connection.new_blocked_list) == 0:
            connection.blocked_list = []
            connection.blocked_contacts = []
            connection.blocked_groups = []
            connection.set_default_list('')
            connection.del_privacy_list(default)
            if 'privay_list_block' in gajim.interface.instances[self.account]:
                del gajim.interface.instances[self.account]\
                    ['privay_list_block']
        else:
            connection.set_privacy_list(default, connection.new_blocked_list)

    def on_voice_checkmenuitem_activate(self, widget, nick):
        if widget.get_active():
            self.grant_voice(widget, nick)
        else:
            self.revoke_voice(widget, nick)

    def on_moderator_checkmenuitem_activate(self, widget, nick):
        if widget.get_active():
            self.grant_moderator(widget, nick)
        else:
            self.revoke_moderator(widget, nick)

    def on_member_checkmenuitem_activate(self, widget, jid):
        if widget.get_active():
            self.grant_membership(widget, jid)
        else:
            self.revoke_membership(widget, jid)

    def on_admin_checkmenuitem_activate(self, widget, jid):
        if widget.get_active():
            self.grant_admin(widget, jid)
        else:
            self.revoke_admin(widget, jid)

    def on_owner_checkmenuitem_activate(self, widget, jid):
        if widget.get_active():
            self.grant_owner(widget, jid)
        else:
            self.revoke_owner(widget, jid)