sugar-toolkit-gtk3/sugar/activity/activity.py

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# Copyright (C) 2006, Red Hat, Inc.
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2 of the License, or (at your option) any later version.
#
# This library 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
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the
# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
# Boston, MA 02111-1307, USA.
import logging
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import os
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import gtk
from sugar.presence import PresenceService
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from sugar.activity.activityservice import ActivityService
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class Activity(gtk.Window):
"""Base Activity class that all other Activities derive from."""
def __init__(self, handle):
gtk.Window.__init__(self)
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self.connect('destroy', self._destroy_cb)
self._shared = False
self._activity_id = handle.activity_id
self._pservice = PresenceService.get_instance()
service = handle.get_presence_service()
if service:
self._join(service)
self.realize()
group = gtk.Window()
group.realize()
self.window.set_group(group.window)
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self._bus = ActivityService(self)
def get_service_name(self):
"""Gets the activity service name."""
return os.environ['SUGAR_BUNDLE_SERVICE_NAME']
def get_default_type(self):
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"""Gets the type of the default activity network service"""
return os.environ['SUGAR_BUNDLE_DEFAULT_TYPE']
def get_shared(self):
"""Returns TRUE if the activity is shared on the mesh."""
return self._shared
def get_id(self):
"""Get the unique activity identifier."""
return self._activity_id
def _join(self, service):
self._service = service
self._shared = True
# Publish the default service, it's a copy of
# one of those we found on the network.
default_type = self.get_default_type()
services = activity_ps.get_services_of_type(default_type)
if len(services) > 0:
service = services[0]
addr = service.get_address()
port = service.get_port()
properties = service.get_published_values()
self._service = self._pservice.share_activity(
self, default_type, properties, addr, port)
else:
logging.error('Cannot join the activity')
self.present()
def share(self):
"""Share the activity on the network."""
logging.debug('Share activity %s on the network.' % self.get_id())
default_type = self.get_default_type()
self._service = self._pservice.share_activity(self, default_type)
self._shared = True
def execute(self, command, args):
"""Execute the given command with args"""
return False
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def _destroy_cb(self, window):
if self._bus:
del self._bus
self._bus = None
if self._service:
self._pservice.unregister_service(self._service)
def get_bundle_path():
return os.environ['SUGAR_BUNDLE_PATH']