Before/AfterBlock hooks

[maciejmatuszak]

In order to visualise/log the running script it would be handy to have before/after hooks .

• Add Before After hooks to Block model (those will apply to specific block)
• Add Before After hooks to Context model (those will apply to every block)
• Before/After method should have access to Context

Hook Implementation:

• Option one: use nullable Func variables or delegates reference in models, easy to check for null and execute if not null

• Option two: Use EventHandlers and delegates

  • Should be fastest method? widely used for time sensitive events lime mouse interaction
  • build in handling of empty handler

• Option three: Add Before/After abstract method to base block and context models, let implementation override it.

  • waste of resources if hooks are not used as the abstract method would always be called
  • Possible to use interfaces IBeforeAction, IAfterAction, implemented interfaces can be detected, still I imagine simple null check is faster.