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Contents
require 'active_support/core_ext/class/attribute'
module React
module Callbacks
def self.included(base)
base.extend(ClassMethods)
end
def run_callback(name, *args)
self.class.callbacks_for(name).each do |callback|
if callback.is_a?(Proc)
instance_exec(*args, &callback)
else
send(callback, *args)
end
end
end
module ClassMethods
def define_callback(callback_name)
attribute_name = "_#{callback_name}_callbacks"
class_attribute(attribute_name)
self.send("#{attribute_name}=", [])
define_singleton_method(callback_name) do |*args, &block|
callbacks = self.send(attribute_name)
callbacks.concat(args)
callbacks.push(block) if block_given?
self.send("#{attribute_name}=", callbacks)
end
end
def callbacks_for(callback_name)
attribute_name = "_#{callback_name}_callbacks"
if superclass.respond_to? :callbacks_for
superclass.callbacks_for(callback_name)
else
[]
end + self.send(attribute_name)
end
end
end
end
Version data entries
26 entries across 26 versions & 3 rubygems