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+== Problem: Containerization ==  #1992
+
+  Activities need to be created inside containers.
+
+Situation:
+
+  "Activities" are launched as follows:
+
+  1. Clicking on an activity launch icon in Sugar triggers the
+     `sugar.shell.view.frame.ActivitiesBox._activity_clicked_cb' callback which
+     in turn fires off a call to `sugar.shell.view.start_activity' with the
+     corresponding service name.
+  2. `sugar.shell.start_activity' calls
+     `sugar.activity.activityfactory.create()' which constructs a
+     `sugar.activity.activityfactory.ActivityCreationHandler', initialized with
+     an `ActivityHandle' describing the activity being started.
+  3. The `__init__' method of ActivityCreationHandler connects to the DBus
+     session bus, uses a well-known name to locate an appropriate
+     ActivityFactory _DBus object_, and calls this _DBus object's_ `create'
+     method.
+     (The ActivityCreationHandler also installs callbacks to log the success or
+     failure of the attempt to launch the activity)
+  4. The appropriate `ActivityServiceFactory' DBus service is automatically
+     launched by DBus from a service file if necessary. Then it's `create' method
+     is dispatched, which results in the activity itself being constructed and
+     presented.
+
+Plan:
+
+  We will modify the ActivityCreationHandler to call over DBus to Rainbow.
+
+  P1. Replace step (S3) with
+
+    3b. The `__init__' method of ActivityCreationHandler connects to the DBus
+    session bus, locates the `org.laptop.security.Rainbow' service, and calls
+    the `create_activity' method of Rainbow's `org.laptop.security.Rainbow'
+    interface.
+
+
+Followup:
+
+  F1. Design and implement the appropriate method in Rainbow.
+
+  F2. Step (S4) is now cruft and should be cleaned.
+
+  F3. Talk to Marco about how he thinks this really ought to be done.
+
+  ---
+
+  F4. Marco agrees with our proposal so it can move ahead once we're ready to
+  integrate Rainbow into the builds.
+
+  F5. Bert Freudenberg would like us to update a wiki page and rewrite
+  sugar-native-factory.c for him.
+
+  F6. However, Michael is not comfortable depending on the glib/gobject mainloop.
+  How long until we can get a libevent-based mainloop? (or move away from DBus?)