Contents

module Vedeu
  module API
    class Events
      def initialize(&block)
        @handlers = Hash.new do |hash, key|
          hash[key] = {
            delay:     0,
            events:    [],
            last_exec: 0,
          }
        end
        instance_eval(&block) if block_given?
      end

      def add(object, &block)
        @self_before_instance_eval = eval('self', block.binding)

        instance_eval(&block)
      end

      def event(event, delay = 0, &block)
        handlers[event][:events] << block
        handlers[event][:delay]  = delay
        handlers[event]
      end

      def trigger(event, *args)
        elapsed = Time.now.to_f - handlers[event][:last_exec]

        if elapsed > handlers[event][:delay]
          handlers[event][:last_exec] = Time.now.to_f

          handlers[event][:events].each { |handler| handler.call(*args) }
        end
      end

      private

      attr_reader :handlers

      def method_missing(method, *args, &block)
        @self_before_instance_eval.send(method, *args, &block)
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
vedeu-0.1.15	lib/vedeu/api/events.rb
vedeu-0.1.14	lib/vedeu/api/events.rb
vedeu-0.1.13	lib/vedeu/api/events.rb