Support events from DialogContextManager in addition to DialogContext

• Key: SHALE-351
• Type: New Feature
• Status: Resolved
• Resolution: Fixed
• Priority: Major
• Assignee: Craig McClanahan
• Reporter: Craig McClanahan
• Component/s: Dialog
• Fix Version/s: 1.0.4

Description

The current dialog APIs make it possible to register for fine grained events on a particular DialogContext, but not on events from DialogContextManager. In particular, it is not currently possible to be notified when a new DialogContext instance is created via navigation. Address this by adding eventing to DialogContextManager along the following lines:

* New DialogContextManagerListener interface with onCreate() and onRemove() methods

* New AbstractDialogContextManager that implements the listener registration stuff
  (analogous to AbsractDialogContext for context level event)

* Modify the two DialogContextManager implementations to extend this new base class
  and to call the event firing methods at the right times

* Unit tests for all of the above (of course :-)

* For naming consistency, consider renaming DialogListener to DialogContextListener
  and associated ripple effects. We can minimize transition impacts on current apps
  by leaving a deprecated DialogListener interface that simply extends DialogContextListener
  (and so on).