Action & User Events

[Nemikolh]

As suggested during the conversion on #15, we should start sketching the interface for Actions.
The first approach should offer:

• A way to register an action handler that will be called when the associated action is emitted by any ui element from the ui. It will receive as parameters:
  • the name of the action
  • the original user event
  • the value of the data binding or None if no argument was provided to the action.

This first approach is quite simple but should help seeing the impact on the rest of the code and would also be a base for further discussion to design the action architecture.