diff --git a/src/sugar/activity/activity.py b/src/sugar/activity/activity.py
index 500143ab..39c2f48d 100644
--- a/src/sugar/activity/activity.py
+++ b/src/sugar/activity/activity.py
@@ -1029,6 +1029,12 @@ class Activity(Window, gtk.Container):
 
     metadata = property(get_metadata, None)
 
+    def handle_view_source(self):
+        raise NotImplementedError
+
+    def get_document_path(self, async_cb, async_err_cb):
+        async_err_cb(NotImplementedError())
+
     # DEPRECATED
     _shared_activity = property(lambda self: self.shared_activity, None)
 
diff --git a/src/sugar/activity/activityservice.py b/src/sugar/activity/activityservice.py
index 81bd6dd3..ff806f33 100644
--- a/src/sugar/activity/activityservice.py
+++ b/src/sugar/activity/activityservice.py
@@ -68,3 +68,15 @@ class ActivityService(dbus.service.Object):
     def Invite(self, buddy_key):
         self._activity.invite(buddy_key)
 
+    @dbus.service.method(_ACTIVITY_INTERFACE)
+    def HandleViewSource(self):
+        self._activity.handle_view_source()
+
+    @dbus.service.method(_ACTIVITY_INTERFACE,
+                         async_callbacks=('async_cb', 'async_err_cb'))
+    def GetDocumentPath(self, async_cb, async_err_cb):
+        try:
+            self._activity.get_document_path(async_cb, async_err_cb)
+        except Exception, e:
+            async_err_cb(e)
+