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- #!/usr/bin/perl -w
- #
- # $Id: Observable.pm,v 1.9 2004/03/15 03:43:43 solovam Exp $
- #
- # This file is a part of gkismet
- #
- # 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; either version 2
- # of the License, or (at your option) any later version.
- #
- # 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, write to the Free Software
- # Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
- #
-
- #
- # Observable class
- #
- package Observable;
-
- use strict;
-
- #
- # Notify observers
- #
- sub notifyObservers
- {
- my $self = shift;
- my $data = shift;
- for (my $i = 0; $i < scalar(@{$self->{'observers'}}); $i++)
- {
- $self->{'observers'}[$i]->update($self, $data);
- }
- }
-
- #
- # Register an observer
- #
- sub addObserver
- {
- my $self = shift;
- my $observer = shift;
- push @{$self->{'observers'}}, $observer;
- }
-
- #
- # Remove observer
- #
- sub removeObserver
- {
- my $self = shift;
- my $observer = shift;
- for(my $i = 0; $i < scalar(@{$self->{'observers'}}); $i++)
- {
- if($self->{'observers'}[$i] == $observer)
- {
- splice @{$self->{'observers'}}, $i, 1;
- }
- }
- }
-
- 1;
-