InteractionSystem

Objects architecture

• Interaction object

  - void * pointer for interface specific stuff

• Widget object

  - for input, associated with a vlc_value_t

• Interaction manager

  - Maintains a list of currently active interaction displays
  - When a new interaction is requested, forward the request to the 
    interface (ASYNCHRONOUS !)
  - Asks the interface to show/modify/remove a display
  - Active polling ?

  - Signalling thhe interface : 
      - function pointer

- easier to know if interface does not support

		- 
      - variable

- cleaner ? - "control" function

• Requester

  - Builds the interaction object
  - Add it to the interaction manager request queue. 
      - Queue or single with lock ?  
      - Analyze deadlock possibility