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132 lines
4.4 KiB
Python
132 lines
4.4 KiB
Python
# Copyright (C) 2006, Red Hat, Inc.
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#
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# This library is free software; you can redistribute it and/or
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# modify it under the terms of the GNU Lesser General Public
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# License as published by the Free Software Foundation; either
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# version 2 of the License, or (at your option) any later version.
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#
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# This library is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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# Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public
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# License along with this library; if not, write to the
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# Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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# Boston, MA 02111-1307, USA.
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import os
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import sys
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import logging
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import dbus
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import dbus.service
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import gobject
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import gtk
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from sugar.presence.PresenceService import PresenceService
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from sugar.activity import bundleregistry
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from sugar.activity.bundle import Bundle
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from sugar import logger
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_ACTIVITY_SERVICE_NAME = "org.laptop.Activity"
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_ACTIVITY_SERVICE_PATH = "/org/laptop/Activity"
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_ACTIVITY_INTERFACE = "org.laptop.Activity"
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def get_path(activity_name):
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"""Returns the activity path"""
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return '/' + activity_name.replace('.', '/')
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class ActivityFactory(dbus.service.Object):
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"""Dbus service that takes care of creating new instances of an activity"""
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def __init__(self, activity_type, activity_class):
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self._activity_type = activity_type
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self._activities = []
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splitted_module = activity_class.rsplit('.', 1)
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module_name = splitted_module[0]
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class_name = splitted_module[1]
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module = __import__(module_name)
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for comp in module_name.split('.')[1:]:
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module = getattr(module, comp)
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if hasattr(module, 'start'):
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module.start()
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self._module = module
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self._constructor = getattr(module, class_name)
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bus = dbus.SessionBus()
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factory = activity_type
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bus_name = dbus.service.BusName(factory, bus = bus)
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dbus.service.Object.__init__(self, bus_name, get_path(factory))
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@dbus.service.method("com.redhat.Sugar.ActivityFactory")
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def create(self):
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activity = self._constructor()
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self._activities.append(activity)
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activity.connect('destroy', self._activity_destroy_cb)
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return activity.window.xid
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def _activity_destroy_cb(self, activity):
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self._activities.remove(activity)
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if hasattr(self._module, 'stop'):
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self._module.stop()
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if len(self._activities) == 0:
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gtk.main_quit()
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class ActivityCreationHandler(gobject.GObject):
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__gsignals__ = {
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'error': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT])),
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'success': (gobject.SIGNAL_RUN_FIRST,
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gobject.TYPE_NONE,
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([gobject.TYPE_PYOBJECT]))
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}
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def __init__(self, service_name):
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gobject.GObject.__init__(self)
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registry = bundleregistry.get_registry()
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bundle = registry.get_bundle(service_name)
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bus = dbus.SessionBus()
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proxy_obj = bus.get_object(service_name, bundle.get_object_path())
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factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
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factory.create(reply_handler=self._reply_handler, error_handler=self._error_handler)
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def _reply_handler(self, xid):
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bus = dbus.SessionBus()
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proxy_obj = bus.get_object(_ACTIVITY_SERVICE_NAME + '%d' % xid,
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_ACTIVITY_SERVICE_PATH + "/%s" % xid)
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activity = dbus.Interface(proxy_obj, _ACTIVITY_INTERFACE)
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self.emit('success', activity)
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def _error_handler(self, err):
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logging.debug("Couldn't create activity: %s" % err)
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self.emit('error', err)
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def create(service_name):
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"""Create a new activity from its name."""
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return ActivityCreationHandler(service_name)
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def start_factory(activity_class, bundle_path):
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"""Start the activity factory."""
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bundle = Bundle(bundle_path)
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logger.start(bundle.get_name())
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os.environ['SUGAR_BUNDLE_PATH'] = bundle_path
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os.environ['SUGAR_BUNDLE_SERVICE_NAME'] = bundle.get_service_name()
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os.environ['SUGAR_BUNDLE_DEFAULT_TYPE'] = bundle.get_default_type()
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factory = ActivityFactory(bundle.get_service_name(), activity_class)
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