Read service type from the .activity file

activities/browser/BrowserActivity.py

@@ -14,7 +14,6 @@ from sugar.p2p.model.RemoteModel import RemoteModel
 from NotificationBar import NotificationBar
 from NavigationToolbar import NavigationToolbar
 
-_BROWSER_ACTIVITY_TYPE = "_web_olpc._udp"
 _SERVICE_URI_TAG = "URI"
 _SERVICE_TITLE_TAG = "Title"
 
@@ -23,8 +22,8 @@ class BrowserActivity(Activity):
 	FOLLOWING = 2
 	LEADING = 3
 
-	def __init__(self, args):
-		Activity.__init__(self, _BROWSER_ACTIVITY_TYPE)
+	def __init__(self, service, args):
+		Activity.__init__(self, service)
 
 		if len(args) > 0:
 			self.uri = args[0]
@@ -65,7 +64,6 @@ class BrowserActivity(Activity):
 		
 		logging.debug('Track browser activities')
 		self._pservice.connect('service-appeared', self._service_appeared_cb)
-		self._pservice.track_service_type(_BROWSER_ACTIVITY_TYPE)
 		self._pservice.track_service_type(LocalModel.SERVICE_TYPE)
 
 		# Join the shared activity if we were started from one
@@ -89,8 +87,9 @@ class BrowserActivity(Activity):
 			self._model = RemoteModel(self._model_service, self._notif_service)
 			self._model.add_listener(self.__shared_location_changed_cb)
 	
-	def get_default_type(self):
-		return _BROWSER_ACTIVITY_TYPE
+	def set_default_type(self, default_type):
+		Activity.set_default_type(self, default_type)
+		self._pservice.track_service_type(default_type)
 	
 	def _update_shared_location(self):
 		address = self.embed.get_address()
@@ -125,7 +124,7 @@ class BrowserActivity(Activity):
 		# Publish ourselves on the network
 		properties = {_SERVICE_URI_TAG: escaped_url, _SERVICE_TITLE_TAG: escaped_title}
 		self._share_service = self._pservice.share_activity(self,
-				stype=_BROWSER_ACTIVITY_TYPE, properties=properties)
+				stype=self._default_type, properties=properties)
 
 		# Create our activity-specific browser sharing service
 		self._model = LocalModel(self, self._pservice, self._share_service)

activities/browser/browser.activity

@@ -2,3 +2,4 @@
 name = Web
 id = com.redhat.Sugar.BrowserActivity
 python_module = BrowserActivity.BrowserActivity
+default_type = _web_olpc._udp

shell/ActivitiesModel.py

@@ -1,5 +1,7 @@
 import gobject
 
+from sugar.presence.PresenceService import PresenceService
+
 class ActivityInfo:
 	def __init__(self, service):
 		self._service = service
@@ -15,10 +17,12 @@ class ActivitiesModel(gobject.GObject):
 	__gsignals__ = {
 		'activity-added':   (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
 						    ([gobject.TYPE_PYOBJECT])),
+		'activity-removed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
+						    ([gobject.TYPE_PYOBJECT]))
 	}
 
 	def __init__(self):
-		gobject.GObject(self)
+		gobject.GObject.__init__(self)
 		
 		self._activities = []
 		
@@ -33,7 +37,7 @@ class ActivitiesModel(gobject.GObject):
 		self.emit('activity-added', activity_info)
 
 	def __iter__(self):
-		return activities.__iter__()
+		return self._activities.__iter__()
 
 	def _on_new_service_adv_cb(self, pservice, activity_id, short_stype):
 		if activity_id:

shell/ActivityRegistry.py

@@ -29,6 +29,14 @@ class ActivityModule:
 	def get_directory(self):
 		"""Get the path to activity directory."""
 		return self._directory
+		
+	def get_default_type(self):
+		"""Get the the type of the default activity service."""
+		return self._default_type
+
+	def set_default_type(self, default_type):
+		"""Set the the type of the default activity service."""
+		self._default_type = default_type
 
 class ActivityRegistry:
 	"""Service that tracks the available activities"""
@@ -65,12 +73,20 @@ class ActivityRegistry:
 			logging.error('%s miss the required name option' % (path))
 			return False
 
+		if cp.has_option('Activity', 'default_type'):
+			default_type = cp.get('Activity', 'default_type')
+		else:
+			default_type = None
+
 		if cp.has_option('Activity', 'exec'):
 			activity_exec = cp.get('Activity', 'exec')
 		elif cp.has_option('Activity', 'python_module'):
+			python_module = cp.get('Activity', 'python_module')
 			python_module = cp.get('Activity', 'python_module')
 			activity_exec = '%s %s %s' % (env.get_activity_runner(),
 							   			  activity_id, python_module)
+			if default_type:
+				activity_exec += ' ' + default_type
 			env.add_to_python_path(directory)
 		else:
 			logging.error('%s must specifiy exec or python_module' % (path))
@@ -79,6 +95,8 @@ class ActivityRegistry:
 		module = ActivityModule(name, activity_id, activity_exec, directory)
 		self._activities.append(module)
 
+		module.set_default_type(default_type)
+
 		return True
 
 	def list_activities(self):

shell/HomeWindow.py

@@ -4,6 +4,7 @@ import gtk
 import wnck
 
 from sugar.activity import Activity
+from ActivitiesModel import ActivitiesModel
 
 class NewActivityButton(gtk.MenuToolButton):
 	def __init__(self, home):
@@ -45,13 +46,13 @@ class ActivitiesGrid(gtk.VBox):
 
 		for activity in model:
 			self._add(activity)
-		screen.connect('activity-added', self.__activity_added_cb)
-		screen.connect('activity-removed', self.__activity_removed_cb)
+		model.connect('activity-added', self.__activity_added_cb)
+		model.connect('activity-removed', self.__activity_removed_cb)
 
 	def __activity_added_cb(self, model, activity):
 		self._add(activity)
 
-	def __activity_closed_cb(self, model, activity):
+	def __activity_removed_cb(self, model, activity):
 		self._remove(window)
 	
 	def _remove(self, activity):

shell/sugar-activity

@@ -13,4 +13,7 @@ theme.setup()
 lw = LogWriter(sys.argv[1])
 lw.start()
 
-Activity.register_factory(sys.argv[1], sys.argv[2])
+if len(sys.argv) == 4:
+	Activity.register_factory(sys.argv[1], sys.argv[2], sys.argv[3])
+else:
+	Activity.register_factory(sys.argv[1], sys.argv[2])

sugar/activity/Activity.py

@@ -31,7 +31,8 @@ def get_factory(activity_name):
 class ActivityFactory(dbus.service.Object):
 	"""Dbus service that takes care of creating new instances of an activity"""
 
-	def __init__(self, activity_name, activity_class):
+	def __init__(self, name, activity_class, default_type):
+		self._default_type = default_type
 		splitted_module = activity_class.rsplit('.', 1)
 		module_name = splitted_module[0]
 		class_name = splitted_module[1]
@@ -50,21 +51,19 @@ class ActivityFactory(dbus.service.Object):
 		self._class = getattr(module, class_name)
 	
 		bus = dbus.SessionBus()
-		factory = get_factory(activity_name)
+		factory = get_factory(name)
 		bus_name = dbus.service.BusName(factory, bus = bus) 
 		dbus.service.Object.__init__(self, bus_name, get_path(factory))
 
 	@dbus.service.method("com.redhat.Sugar.ActivityFactory")
 	def create_with_service(self, serialized_service, args):
-		service = None
-		if serialized_service is not None:
-			service = Service.deserialize(serialized_service)
-
-		activity = self._class(args)
+		service = Service.deserialize(serialized_service)
+		activity = self._class(service, args)
 
 	@dbus.service.method("com.redhat.Sugar.ActivityFactory")
 	def create(self):
-		self.create_with_service(None, [])
+		activity = self._class(None, [])
+		activity.set_default_type(self._default_type)
 
 def create(activity_name, service = None, args = None):
 	"""Create a new activity from his name."""
@@ -82,9 +81,9 @@ def create(activity_name, service = None, args = None):
 	else:
 		factory.create()		
 
-def register_factory(activity_name, activity_class):
+def register_factory(name, activity_class, default_type=None):
 	"""Register the activity factory."""
-	factory = ActivityFactory(activity_name, activity_class)
+	factory = ActivityFactory(name, activity_class, default_type)
 
 	gtk.main()
 
@@ -143,21 +142,20 @@ class ActivityDbusService(dbus.service.Object):
 class Activity(gtk.Window):
 	"""Base Activity class that all other Activities derive from."""
 
-	def __init__(self, default_type, activity_id = None):
+	def __init__(self, service = None):
 		gtk.Window.__init__(self)
 
-		if activity_id is None:
-			self._activity_id = sugar.util.unique_id()
+		if service and service.has_key('activity_id'):
+			self._activity_id = service['activity_id']
+			self._shared = True
 		else:
-			self._activity_id = activity_id
+			self._activity_id = sugar.util.unique_id()
+			self._shared = False
 
 		self._dbus_service = None
 		self._initial_service = None
 		self._activity_object = None
-		self._shared = False
-		if type(default_type) != type("") or not len(default_type):
-			raise ValueError("Default type must be a valid string.")
-		self._default_type = default_type
+		self._default_type = None
 
 		keybindings.setup_global_keys(self)
 
@@ -186,7 +184,10 @@ class Activity(gtk.Window):
 		Allows subclasses to use their own dbus service object if they choose."""
 		return ActivityDbusService(self.window.xid, self)
 
-	def default_type(self):
+	def set_default_type(self, default_type):
+		self._default_type = default_type
+
+	def get_default_type(self):
 		return self._default_type
 
 	def set_shared(self):