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#
# Copyright (C) 2006, 2007, One Laptop Per Child
#
# 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., 675 Mass Ave, Cambridge, MA 02139, USA.
#
import os
import logging
import json
import sha
import gobject
_logger = logging.getLogger('model')
class Model(gobject.GObject):
''' The model of the activity which uses json to serialize its data
to a file and deserelize from it.
'''
__gsignals__ = {
'add_link': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE, ([int]))
}
def __init__(self):
gobject.GObject.__init__(self)
self.data = {}
self._links = []
self.data['shared_links'] = self._links
def add_link(self, url, title, thumb, owner, color):
self.links.append( {'hash':sha.new(url).hexdigest(), 'url':url, 'title':title, 'thumb':thumb,
'owner':owner, 'color':color, 'deleted':0} )
self.emit('add_link', len(self.links)-1)
def mark_link_deleted(self, index):
self._links[index]['deleted'] = 1
self._links[index]['thumb'] = ''
def serialize(self):
self.get_session()
return json.write(self.data)
def deserialize(self, data):
self.data = json.read(data)
self.links = self.data
def get_links_ids(self):
ids = []
for link in self._links:
ids.append(link['hash'])
ids.append('')
return ids
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