[ve-dev] Commit intercept for dropped components?

[Gerald Rosenberg <gerald@xxxxxxxxxx>]

Working with FlowLayoutEditPolicy as a prototype for
FormLayoutEditPolicy.  

Looks like I can use
"getCreateCommand(CreateRequest
aRequest)", etc. as intercepts to supply candidate
constraints computed based on the request/editpart parameter.  The
computation is made against an internal model of available/used
constraints.

Looks like I can use
"createListener() ...
new
EditPartListener.Stub()" to recognize add and remove
component events.  This will allow me to commit a corresponding
update to my internal model.

What can I use as an intercept to recognize completion of a component
move *within* a container?  Need a commit trigger to update my
model.

Also, should I be getting "removingChild" and
"childAdded" events when moving a component between
containers?  When crossing between the containers, VE does switch
from issuing
"getMoveChildrenCommand"
to issuing
"getOrphanChildrenCommand"
and
"createAddCommand". 
On the mouse button release, I am not getting any events -- should remove
and add events be generated at this point?

Thanks,
Gerald