Class: CallbacksAttachable::CallbackRegistry

Inherits:
Object
  • Object
show all
Defined in:
lib/all/callback_registry.rb

Instance Method Summary collapse

Constructor Details

#initialize(owner_class) ⇒ CallbackRegistry

Returns a new instance of CallbackRegistry.



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# File 'lib/all/callback_registry.rb', line 3

def initialize(owner_class)
  @singleton_owner = owner_class.singleton_class?
  @callbacks = {}
end

Instance Method Details

#deregister(event, callback) ⇒ Object 



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# File 'lib/all/callback_registry.rb', line 25

def deregister(event, callback)
  @callbacks[event].delete callback.__id__
  @callbacks.delete(event) if @callbacks[event].empty?
end

#register(*events, opts, callback) ⇒ Object 



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# File 'lib/all/callback_registry.rb', line 8

def register(*events, opts, callback)
  callback = Callback.new(self, events, opts, !@singleton_owner, callback)
  events.each do |event|
    @callbacks[event] ||= {}
    @callbacks[event][callback.__id__] = callback
  end
  callback
end

#registered?(event) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/all/callback_registry.rb', line 17

def registered?(event)
  @callbacks.key? event
end

#trigger(instance, event, args) ⇒ Object 



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# File 'lib/all/callback_registry.rb', line 21

def trigger(instance, event, args)
  @callbacks[event] and @callbacks[event].each_value{ |callback| callback.call(instance, args) }
end