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# -*- coding: utf-8 -*-
# Copyright 2009, 2010 Erwan Briand
# Copyright 2010, Florent Le Coz <louizatakk@fedoraproject.org>
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation version 3 of the License.
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from singleton import Singleton
class Handler(Singleton):
"""
This class is the global handler for the software's signals.
"""
__is_first_instance = True
def __init__(self):
if Handler.__is_first_instance:
Handler.__is_first_instance = False
self.__signals__ = {
'on-connected': list(),
# At the end of a successful connection process.
# emitted when presence confirmation is received
# Args: jid
'join-room': list(),
# Join a room.
# Args: room, nick
'room-presence': list(),
# A presence is received
# Args: the stanza object
'room-message': list(),
# A message is received
# Args: the stanza object
'room-iq': list(),
# An iq is received
# Args: the stanza object
}
def connect(self, signal, func):
"""Connect a function to a signal."""
if func not in self.__signals__[signal]:
self.__signals__[signal].append(func)
def emit(self, signal, **kwargs):
"""Emit a signal."""
if self.__signals__.has_key(signal):
for func in self.__signals__[signal]:
func(**kwargs)
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