94 lines
3.2 KiB
Python
94 lines
3.2 KiB
Python
# Copyright (C) 2006-2007 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
|
|
|
|
import dbus
|
|
|
|
_SHELL_SERVICE = "org.laptop.Shell"
|
|
_SHELL_PATH = "/org/laptop/Shell"
|
|
_REGISTRY_IFACE = "org.laptop.Shell.ActivityRegistry"
|
|
|
|
def _activity_info_from_dict(info_dict):
|
|
if not info_dict:
|
|
return None
|
|
return ActivityInfo(info_dict['name'], info_dict['icon'],
|
|
info_dict['service_name'], info_dict['path'])
|
|
|
|
class ActivityInfo(object):
|
|
def __init__(self, name, icon, service_name, path):
|
|
self.name = name
|
|
self.icon = icon
|
|
self.service_name = service_name
|
|
self.path = path
|
|
|
|
class ActivityRegistry(object):
|
|
def __init__(self):
|
|
bus = dbus.SessionBus()
|
|
bus_object = bus.get_object(_SHELL_SERVICE, _SHELL_PATH)
|
|
self._registry = dbus.Interface(bus_object, _REGISTRY_IFACE)
|
|
self._registry.connect_to_signal('ActivityAdded', self._activity_added_cb)
|
|
|
|
# Two caches fo saving some travel across dbus.
|
|
self._service_name_to_activity_info = {}
|
|
self._mime_type_to_activities = {}
|
|
|
|
def _convert_info_list(self, info_list):
|
|
result = []
|
|
|
|
for info_dict in info_list:
|
|
result.append(_activity_info_from_dict(info_dict))
|
|
|
|
return result
|
|
|
|
def get_activity(self, service_name):
|
|
if self._service_name_to_activity_info.has_key(service_name):
|
|
return self._service_name_to_activity_info[service_name]
|
|
|
|
info_dict = self._registry.GetActivity(service_name)
|
|
activity_info = _activity_info_from_dict(info_dict)
|
|
|
|
self._service_name_to_activity_info[service_name] = activity_info
|
|
return activity_info
|
|
|
|
def find_activity(self, name):
|
|
info_list = self._registry.FindActivity(name)
|
|
return self._convert_info_list(info_list)
|
|
|
|
def get_activities_for_type(self, mime_type):
|
|
if self._mime_type_to_activities.has_key(mime_type):
|
|
return self._mime_type_to_activities[mime_type]
|
|
|
|
info_list = self._registry.GetActivitiesForType(mime_type)
|
|
activities = self._convert_info_list(info_list)
|
|
|
|
self._mime_type_to_activities[mime_type] = activities
|
|
return activities
|
|
|
|
def _activity_added_cb(self, bundle):
|
|
logging.debug('ActivityRegistry._activity_added_cb: flushing caches')
|
|
self._service_name_to_activity_info.clear()
|
|
self._mime_type_to_activities.clear()
|
|
|
|
_registry = None
|
|
|
|
def get_registry():
|
|
global _registry
|
|
if not _registry:
|
|
_registry = ActivityRegistry()
|
|
return _registry
|