Make the presence service resolve all shared activity services by default; it's up to the activities to ignore services that aren't theirs. Also add 'joined-activity' and 'left-activity' signals on Buddy objects, mainly for the PresenceWindow's 'Who's here' bits

sugar/browser/BrowserShell.py

@@ -37,8 +37,8 @@ class BrowserShell(dbus.service.Object):
 	@dbus.service.method('com.redhat.Sugar.BrowserShell')
 	def open_browser(self, uri, serialized_service=None):
 		service = None
-#		if serialized_service is not None:
-#			service = Service.deserialize(serialized_service)
+		if serialized_service is not None:
+			service = Service.deserialize(serialized_service)
 		browser = BrowserActivity(uri)
 		self.__browsers.append(browser)
 		gobject.idle_add(self._start_browser_cb, browser, service)

sugar/chat/GroupChat.py

@@ -19,12 +19,8 @@ class GroupChat(Chat):
 		self._pservice.connect('service-appeared', self._service_appeared_cb)
 		self._pservice.track_service_type(GroupChat.SERVICE_TYPE)
 
-		# FIXME remove, when we join the activity this will happen automatically
-		# (Once we have a global presence service)
-		self._pservice.track_activity(activity.get_id())
-
 	def _service_appeared_cb(self, pservice, buddy, service):
-		if service.get_type() == GroupChat.SERVICE_TYPE:
+		if service.get_full_type() == GroupChat.SERVICE_TYPE:
 			logging.debug('Group chat service appeared, setup the stream.')
 			self._setup_stream(service)
 

sugar/presence/Buddy.py

@@ -20,7 +20,11 @@ class Buddy(gobject.GObject):
 		'service-added': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
 						 ([gobject.TYPE_PYOBJECT])),
 		'service-removed': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
-						 ([gobject.TYPE_PYOBJECT]))
+						 ([gobject.TYPE_PYOBJECT])),
+		'joined-activity': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
+						 ([gobject.TYPE_STRING])),
+		'left-activity': (gobject.SIGNAL_RUN_FIRST, gobject.TYPE_NONE,
+						 ([gobject.TYPE_STRING]))
 	}
 
 	def __init__(self, service):
@@ -69,12 +73,27 @@ class Buddy(gobject.GObject):
 		if service.get_publisher_address() != self._address:
 			logging.error('Service publisher and buddy address doesnt match: %s %s' % (service.get_publisher_address(), self._address))
 			return False
-		if service.get_type() in self._services.keys():
+		full_type = service.get_full_type()
+		if full_type in self._services.keys():
 			return False
-		self._services[service.get_full_type()] = service
+		self._services[full_type] = service
 		if self._valid:
 			self.emit("service-added", service)
-		if service.get_full_type() == PRESENCE_SERVICE_TYPE:
+
+		# If this is the first service we've seen that's owned  by
+		# a particular activity, send out the 'joined-activity' signal
+		(uid, short_stype) = Service._decompose_service_type(full_type)
+		if uid is not None:
+			found = False
+			for serv in self._services.values():
+				if serv.get_activity_uid() == uid and serv.get_full_type() != full_type:
+					found = True
+					break
+			if not found:
+				print "Buddy (%s) joined activity %s." % (self._nick_name, service.get_activity_uid())
+				self.emit("joined-activity", service)
+
+		if full_type == PRESENCE_SERVICE_TYPE:
 			# A buddy isn't valid until its official presence
 			# service has been found and resolved
 			self._valid = True
@@ -89,11 +108,26 @@ class Buddy(gobject.GObject):
 			return
 		if service.get_name() != self._nick_name:
 			return
-		if self._services.has_key(service.get_full_type()):
+		full_type = service.get_full_type()
+		if self._services.has_key(full_type):
 			if self._valid:
 				self.emit("service-removed", service)
-			del self._services[service.get_full_type()]
-		if service.get_full_type() == PRESENCE_SERVICE_TYPE:
+			del self._services[full_type]
+
+		# If this is the lase service owned  by a particular activity,
+		# and it's just been removed, send out the 'left-actvity' signal
+		(uid, short_stype) = Service._decompose_service_type(full_type)
+		if uid is not None:
+			found = False
+			for serv in self._services.values():
+				if serv.get_activity_uid() == uid:
+					found = True
+					break
+			if not found:
+				print "Buddy (%s) left activity %s." % (self._nick_name, service.get_activity_uid())
+				self.emit("left-activity", service)
+
+		if full_type == PRESENCE_SERVICE_TYPE:
 			self._valid = False
 
 	def get_service_of_type(self, stype=None, activity=None):

sugar/presence/PresenceService.py

@@ -93,7 +93,7 @@ class PresenceService(gobject.GObject):
 		return PresenceService.__instance
 	get_instance = staticmethod(get_instance)
 
-	def __init__(self, debug=False):
+	def __init__(self, debug=True):
 		gobject.GObject.__init__(self)
 
 		self._debug = debug
@@ -113,7 +113,6 @@ class PresenceService(gobject.GObject):
 
 		# All the mdns service types we care about
 		self._allowed_service_types = []  # Short service type
-		self._allowed_activities = []     # activity UID
 
 		# Keep track of stuff we're already browsing with ZC
 		self._service_type_browsers = {}
@@ -163,7 +162,7 @@ class PresenceService(gobject.GObject):
 	def _resolve_service_error_handler(self, err):
 		logging.error("error resolving service: %s" % err)
 
-	def _find_service_adv(self, interface=None, protocol=None, name=None, stype=None, domain=None):
+	def _find_service_adv(self, interface=None, protocol=None, name=None, stype=None, domain=None, is_short_stype=False):
 		"""Search a list of service advertisements for ones matching certain criteria."""
 		adv_list = []
 		for adv in self._service_advs:
@@ -173,6 +172,11 @@ class PresenceService(gobject.GObject):
 				continue
 			if name and adv.name() != name:
 				continue
+			if is_short_stype:
+				(uid, dec_stype) = Service._decompose_service_type(adv.stype())
+				if uid is None or stype != dec_stype:
+					continue
+			else:
 				if stype and adv.stype() != stype:
 					continue
 			if domain and adv.domain() != domain:
@@ -314,8 +318,7 @@ class PresenceService(gobject.GObject):
 
 		# If we care about the service right now, resolve it
 		resolve = False
-		if uid in self._allowed_activities:
-			if short_stype in self._allowed_service_types:
+		if uid is not None or short_stype in self._allowed_service_types:
 			resolve = True
 		if self._is_special_service_type(short_stype):
 			resolve = True
@@ -416,25 +419,6 @@ class PresenceService(gobject.GObject):
 	def _new_domain_cb_glue(self, interface, protocol, domain, flags=0):
 		gobject.idle_add(self._new_domain_cb, interface, protocol, domain, flags)
 
-	def track_activity(self, activity_uid):
-		"""INTERNAL ONLY; register an activity's UID to recognize service
-		events for that specific activity."""
-		if not activity_uid or not util.validate_activity_uid(activity_uid):
-			raise ValueError("activity uid must be a valid activity uid string.")
-		if activity_uid in self._allowed_activities:
-			return
-		self._allowed_activities.append(activity_uid)
-		self._check_and_resolve_service_advs()
-
-	def untrack_activity(self, activity_uid):
-		"""INTERNAL ONLY; unregister an activity's UID to stop service
-		events for that specific activity."""
-		if not activity_uid or not util.validate_activity_uid(activity_uid):
-			raise ValueError("activity uid must be a valid activity uid string.")
-		if activity_uid not in self._allowed_activities:
-			return
-		self._allowed_activities.remove(activity_uid)
-
 	def track_service_type(self, short_stype):
 		"""Requests that the Presence service look for and recognize
 		a certain mDNS service types."""
@@ -456,22 +440,17 @@ class PresenceService(gobject.GObject):
 		self._allowed_service_types.append(dec_stype)
 		self._check_and_resolve_service_advs(dec_stype)
 
-	def _check_and_resolve_service_advs(self, specific_stype=None):
+	def _check_and_resolve_service_advs(self, short_stype):
+		"""We should only get called with short service types (ie, not
+		service types that can be decomposed into a UID and a type)."""
 		# Find unresolved services that match the service type
 		# we're now interested in, and resolve them
 		resolv_list = []
-		# Find all services first by their activity
-		search_types = self._allowed_service_types
-		if specific_stype:
-			search_types = [specific_stype]
-		for uid in self._allowed_activities:
-			for short_stype in search_types:
-				full_stype = Service.compose_service_type(short_stype, uid)
-				adv_list = self._find_service_adv(stype=full_stype)
-				resolv_list = resolv_list + adv_list
-		# Then, find services by just the plain service type
-		if specific_stype is not None:
-			resolv_list = resolv_list + self._find_service_adv(stype=specific_stype)
+
+		# Find services of this type belonging to specific activities
+		resolv_list = self._find_service_adv(stype=short_stype, is_short_stype=True)
+		# And also just plain ones of this type
+		resolv_list = resolv_list + self._find_service_adv(stype=short_stype)
 
 		# Request resolution for them if they aren't in-process already
 		for adv in resolv_list:
@@ -505,6 +484,9 @@ class PresenceService(gobject.GObject):
 
 	def share_activity(self, activity, stype, properties={}, address=None, port=None):
 		"""Convenience function to share an activity with other buddies."""
+		if not self._started:
+			raise RuntimeError("presence service must be started first.")
+
 		uid = activity.get_id()
 		logging.debug('Sharing activity uid %s, stype %s' % (uid, stype))
 		owner_nick = self._owner.get_nick_name()
@@ -536,8 +518,6 @@ class PresenceService(gobject.GObject):
 		rs_name = service.get_name()
 		rs_stype = service.get_full_type()
 		rs_port = service.get_port()
-		if type(rs_port) != type(1) and (rs_port <= 1024 or rs_port > 65536):
-			raise ValueError("invalid service port.")
 		rs_props = service.get_properties()
 		rs_domain = service.get_domain()
 		rs_address = service.get_address()
@@ -560,10 +540,7 @@ class PresenceService(gobject.GObject):
 			# should un-register it an re-register with the correct info
 			if str(exc) == "Local name collision":
 				pass
-		uid = service.get_activity_uid()
 		activity_stype = service.get_type()
-		if uid:
-			self.track_activity(uid)
 		self.track_service_type(activity_stype)
 		return group
 

sugar/shell/StartPage.py

@@ -236,15 +236,13 @@ class StartPage(gtk.HBox):
 		self._search(None)
 
 	def _on_local_activity_started_cb(self, helper, activity_container, activity_id):
-		self._pservice.track_activity(activity_id)
 		print "new local activity %s" % activity_id
 
 	def _on_local_activity_ended_cb(self, helper, activity_container, activity_id):
-		self._pservice.untrack_activity(activity_id)
+		print "local activity %s disappeared" % activity_id
 
 	def _on_new_service_adv_cb(self, pservice, activity_id, short_stype):
 		if activity_id:
-			self._pservice.track_activity(activity_id)
 			self._pservice.track_service_type(short_stype)
 
 	def _on_activity_announced_cb(self, pservice, service, buddy):