module Guard::Hook

def self.included(base)

Parameters:
  • base (Class) -- the class that includes the module 
def self.included(base)
  base.send :include, InstanceMethods
end

def add_callback(listener, guard_class, events)

Parameters:
  • events (Array) -- the events to register
  • guard_class (Guard::Guard) -- the Guard class to add the callback
  • listener (Block) -- the listener to notify 
def add_callback(listener, guard_class, events)
  _events = events.is_a?(Array) ? events : [events]
  _events.each do |event|
    callbacks[[guard_class, event]] << listener
  end
end

def callbacks


Get all callbacks. 
def callbacks
  @callbacks ||= Hash.new { |hash, key| hash[key] = [] }
end

def has_callback?(listener, guard_class, event)

Parameters:
  • event (Symbol) -- the event to look for
  • guard_class (Guard::Guard) -- the Guard class to add the callback
  • listener (Block) -- the listener to notify 
def has_callback?(listener, guard_class, event)
  callbacks[[guard_class, event]].include?(listener)
end

def notify(guard_class, event, *args)

Parameters:
  • args (Array) -- the arguments for the listener
  • event (Symbol) -- the event to trigger
  • guard_class (Guard::Guard) -- the Guard class to add the callback 
def notify(guard_class, event, *args)
  callbacks[[guard_class, event]].each do |listener|
    listener.call(guard_class, event, *args)
  end
end

def reset_callbacks!


Reset all callbacks. 
def reset_callbacks!
  @callbacks = nil
end