Redefine responds_to_event to allow preventing event bubbling

widget.rb

class Widget < Apotomo::Widget

  # ...

  def self.responds_to_event(*options)
    bubble? = options.last.delete[:bubble] || false

    unless bubble?
      # Get the method name
      method_name = options.last[:with] || options.first
      # Get the method itself
      method = self.instance_method(method_name)

      # Define a new method by calling the old one and stopping the event afterwards
      define_method(method_name) do |evt|
        method.bind(self).call(evt)
        evt.stop!
      end
    end

    super(*options)
  end
end