The SwipeAction requires one device/touch point, and that is the default for GestureAction — if GestureAction supported multiple devices/touch points. http://bugzilla.clutter-project.org/show_bug.cgi?id=2585
Clean up the documentation, and use a type safe GFlags marshaller for the ::swept signal's @direction argument - instead of a generic integer marshaller. http://bugzilla.clutter-project.org/show_bug.cgi?id=2585
To allow actors to handle gestures in a more organized way. http://bugzilla.clutter-project.org/show_bug.cgi?id=2585