Module: Eventful::ObservableWithBlocks

Includes:
Observable
Included in:
Eventful
Defined in:
lib/eventful.rb

Overview

Extends the Observable module and allows it to accept blocks as observers. This is a distinct module because I often want to do this without using named events.

Instance Method Summary collapse

Instance Method Details

#add_observer(*args, &block) ⇒ Object

Adds an observer to the object. The observer may be an object implementing update, or a block that will be called when the object notifies observers. If a block is passed, we return the wrapping Observer object so it can removed using delete_observer.



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# File 'lib/eventful.rb', line 46

def add_observer(*args, &block)
  return super unless block_given?
  observer = Observer.new(&block)
  add_observer(observer)
  observer
end