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# -.- coding: utf-8 -.-
# Activity Log Manager
# Copyright © 2011 Collabora Ltd.
#             By Siegfried-Angel Gevatter Pujals <siegfried@gevatter.com>
#             By Seif Lotfy <seif@lotfy.com>
# Copyright © 2011 Manish Sinha <manishsinha@ubuntu.com>
# 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
# GNU General Public License for more details.
# You should have received a copy of the GNU Lesser General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from itertools import imap

from zeitgeist.client import ZeitgeistClient
from zeitgeist.datamodel import Event, Subject

00028 class ZeitgeistInterface:

      INCOGNITO = Event.new_for_values()
      INCOGNITO_TEMPLATE_ID = "block-all"

      def __init__(self):
            self._client = ZeitgeistClient()
            if self._client.get_version() < [0, 7, 99]:
                  raise SystemExit, _("Zeitgeist version 0.8 or later required.")
            self._blacklist = self._client._iface.get_extension('Blacklist',
            self._all = None

      def all_templates(self):
            if self._all is None:
                  self._all = {}
                  # Connect to signals
                  self._blacklist.connect('TemplateAdded', self._template_added)
                  self._blacklist.connect('TemplateRemoved', self._template_removed)
                  # And fetch the current templates
                  for blacklist_id, template in self._blacklist.GetTemplates().iteritems():
                        self._all[blacklist_id] = Event(template)
            return self._all

      def _template_added(self, blacklist_id, template):
            if blacklist_id not in self._all:
                  self._all[blacklist_id] = template
      def _template_removed(self, blacklist_id, template):
            if blacklist_id in self._all:
                  del self._all[blacklist_id]
00062       def add_blacklist_template(self, blacklist_id, template):
            Add a new blacklist template.
            self._blacklist.AddTemplate(blacklist_id, template)
            self._all[blacklist_id] = template

00069       def remove_blacklist_template(self, blacklist_id):
            Remove the blacklist template for the provided template id.
            del self._all[blacklist_id]

00076       def get_incognito(self):
            The blacklist template for incognito is matched against all the 
            blacklist items.
            return any(imap(self.INCOGNITO.matches_template, self.all_templates.itervalues()))

      def set_incognito(self, enabled):
            if enabled:
                  self.add_blacklist_template(self.INCOGNITO_TEMPLATE_ID, self.INCOGNITO)
      def remove_history(self, timerange, callback):
            last_ids = []
            def get_ids_callback(ids):
                  last_ids = ids
                  def remove_callback(timerange):
                  self._client.delete_events(ids, remove_callback)
            self._client.find_event_ids_for_templates([], get_ids_callback, timerange, 2, 0)

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