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Make activity launching asynchronous

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The ActivityFactory create() method now returns a handler GObject,
which callers may attach signals to to receive success and error
signals from the result of the activity launch request.
This commit is contained in:
Dan Williams
2007-01-07 00:04:30 -05:00
parent 8cea4c5fc6
commit fb716ae046
5 changed files with 119 additions and 69 deletions
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sugar/activity/ActivityFactory.py
+36 -17
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@@ -76,24 +76,43 @@ class ActivityFactory(dbus.service.Object):
if len(self._activities) == 0:
gtk.main_quit()
class ActivityCreationHandler(gobject.GObject):
__gsignals__ = {
'error': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT])),
'success': (gobject.SIGNAL_RUN_FIRST,
gobject.TYPE_NONE,
([gobject.TYPE_PYOBJECT]))
}
def __init__(self, activity_name):
gobject.GObject.__init__(self)
bus = dbus.SessionBus()
factory_name = activity_name
factory_path = get_path(factory_name)
proxy_obj = bus.get_object(factory_name, factory_path)
factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
factory.create(reply_handler=self._reply_handler, error_handler=self._error_handler)
def _reply_handler(self, xid):
bus = dbus.SessionBus()
proxy_obj = bus.get_object(Activity.get_service_name(xid),
Activity.get_object_path(xid))
activity = dbus.Interface(proxy_obj, Activity.ACTIVITY_INTERFACE)
self.emit('success', activity)
def _error_handler(self, err):
logging.debug("Couldn't create activity: %s" % err)
self.emit('error', err)
def create(activity_name):
"""Create a new activity from his name."""
bus = dbus.SessionBus()
factory_name = activity_name
factory_path = get_path(factory_name)
proxy_obj = bus.get_object(factory_name, factory_path)
factory = dbus.Interface(proxy_obj, "com.redhat.Sugar.ActivityFactory")
xid = factory.create()
bus = dbus.SessionBus()
proxy_obj = bus.get_object(Activity.get_service_name(xid),
Activity.get_object_path(xid))
activity = dbus.Interface(proxy_obj, Activity.ACTIVITY_INTERFACE)
return activity
"""Create a new activity from its name."""
return ActivityCreationHandler(activity_name)
def start_factory(activity_class, bundle_path):
"""Start the activity factory."""