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import os
from ConfigParser import ConfigParser
import gobject
from sugar.activity.bundle import Bundle
from sugar import env
from sugar import util
# http://standards.freedesktop.org/basedir-spec/basedir-spec-0.6.html
def _get_data_dirs():
if os.environ.has_key('XDG_DATA_DIRS'):
return os.environ['XDG_DATA_DIRS'].split(':')
else:
return [ '/usr/local/share/', '/usr/share/' ]
class _ServiceManager(object):
def __init__(self):
service_dir = os.path.expanduser('~/.local/share/dbus-1/services')
if not os.path.isdir(service_dir):
os.makedirs(service_dir)
self._path = service_dir
def add(self, bundle):
util.write_service(bundle.get_service_name(),
bundle.get_exec(), self._path)
class BundleRegistry(gobject.GObject):
"""Service that tracks the available activity bundles"""
__gsignals__ = {
'bundle-added': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT]))
}
def __init__(self):
gobject.GObject.__init__(self)
self._bundles = {}
self._search_path = []
self._service_manager = _ServiceManager()
def find_bundle(self, key):
"""Find a bundle in the registry"""
key = key.lower()
for bundle in self._bundles.values():
name = bundle.get_name().lower()
service_name = bundle.get_service_name().lower()
if name.find(key) != -1 or service_name.find(key) != -1:
return bundle
return None
def get_bundle(self, service_name):
"""Returns an bundle given his service name"""
if self._bundles.has_key(service_name):
return self._bundles[service_name]
else:
return None
def find_by_default_type(self, default_type):
"""Find a bundle by the network service default type"""
for bundle in self._bundles.values():
if bundle.get_default_type() == default_type:
return bundle
return None
def add_search_path(self, path):
"""Add a directory to the bundles search path"""
self._search_path.append(path)
self._scan_directory(path)
def __iter__(self):
return self._bundles.values().__iter__()
def _scan_directory(self, path):
if os.path.isdir(path):
for f in os.listdir(path):
bundle_dir = os.path.join(path, f)
if os.path.isdir(bundle_dir) and \
bundle_dir.endswith('.activity'):
self.add_bundle(bundle_dir)
def add_bundle(self, bundle_path):
bundle = Bundle(bundle_path)
if bundle.is_valid():
self._bundles[bundle.get_service_name()] = bundle
self._service_manager.add(bundle)
self.emit('bundle-added', bundle)
return True
else:
return False
def get_registry():
return _bundle_registry
_bundle_registry = BundleRegistry()
for path in _get_data_dirs():
bundles_path = os.path.join(path, 'activities')
_bundle_registry.add_search_path(bundles_path)
_bundle_registry.add_search_path(env.get_user_activities_path())
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