Cameron McCormack wrote:
XBL2 currently says:
The action taken (retarget vs. stop) is specific to the event type. In
general, UI events must be retargeted and mutation events must be
stopped. Exceptions to the rule are noted below. The goal of this
retargeting or stopping is to stop outer shadow scopes from being
exposed to nodes from inner shadow scopes, and to stop outer shadow
scopes from getting apparently meaningless events that only make sense
in the context of inner shadow scopes.
— http://www.w3.org/TR/xbl/#event2
A definitive list of which event types should be retargetted and which
should be stopped doesn’t seem to be given, though. It’s unclear
whether a CustomEvent (or a plain Event) should be retargetted or
stopped.
I think this was a feature request to make it possible for the code
firing the custom event to specify whether the event should be
retargetted or stopped. The XBL spec can't specify all possible custom
events of course, so it does make sense, however I would ask what the
use case is.
/ Jonas
