bin/signal_event.py

   1 # -*- encoding: utf-8 -*-
   2 ##############################################################################
   3 #
   4 # Copyright (c) 2004-2008 TINY SPRL. (http://tiny.be) All Rights Reserved.
   5 #
   6 # $Id$
   7 #
   8 # WARNING: This program as such is intended to be used by professional
   9 # programmers who take the whole responsability of assessing all potential
  10 # consequences resulting from its eventual inadequacies and bugs
  11 # End users who are looking for a ready-to-use solution with commercial
  12 # garantees and support are strongly adviced to contract a Free Software
  13 # Service Company
  14 #
  15 # This program is Free Software; you can redistribute it and/or
  16 # modify it under the terms of the GNU General Public License
  17 # as published by the Free Software Foundation; either version 2
  18 # of the License, or (at your option) any later version.
  19 #
  20 # This program is distributed in the hope that it will be useful,
  21 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  22 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  23 # GNU General Public License for more details.
  24 #
  25 # You should have received a copy of the GNU General Public License
  26 # along with this program; if not, write to the Free Software
  27 # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  28 #
  29 ##############################################################################
  30
  31 class signal_event(object):
  32     def __init__(self):
  33         self.__connects = {}
  34
  35     def signal(self, signal, signal_data=None):
  36         for fnct,data,key in self.__connects.get(signal, []):
  37             fnct(self, signal_data, *data)
  38         return True
  39
  40     def signal_connect(self, key, signal, fnct, *data):
  41         self.__connects.setdefault(signal, [])
  42         if (fnct, data, key) not in self.__connects[signal]:
  43             self.__connects[signal].append((fnct, data, key))
  44         return True
  45
  46     def signal_unconnect(self, key, signal=None):
  47         if not signal:
  48             signal = self.__connects.keys()
  49         else:
  50             signal = [signal]
  51         for sig in signal:
  52             i=0
  53             while i<len(self.__connects[sig]):
  54                 if self.__connects[sig][i][2]==key:
  55                     del self.__connects[sig][i]
  56                 else:
  57                     i+=1
  58         return True
  59
  60 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4:
  61