Class: Bushido::Data

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

Overview

:nodoc:

Constant Summary collapse

@@observers = 
[]

Class Method Summary collapse

Class Method Details

.add_observer(observer) ⇒ Object 



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# File 'lib/bushido/data.rb', line 5

def self.add_observer(observer)
  puts "Subscribing #{observer} to Bushido data calls"
  @@observers << observer
end

.fire(data, event) ⇒ Object 



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# File 'lib/bushido/data.rb', line 10

def self.fire(data, event)
  puts "Bushido Hooks Firing #{event} with => #{data.inspect}"

  processed = false

  @@observers.each do |observer|
    puts "#{observer}.respond_to?(#{event}) => #{observer.respond_to?(event)}"

    if observer.respond_to?(event)
      processed = true

      # Make a copy of the data so it's not mutated as the events
      # pass through the observers
      observer.instance_variable_set("@params", data.dup)

      result = observer.send(event)

      # Allow an observer to halt event propagation
      if result == :halt
        puts "Observer #{observer} halted event propagation"
        break
      end
    end
  end

  # We've checked all the observers to see if they respond to the
  # named events, so if the event is still unprocessed then let's
  # fall back on the first catch_all event we find
  if !processed
    @@observers.each do |observer|
      if observer.respond_to?(:catch_all)
        observer.instance_variable_set("@params", data.dup)

        observer.send(:catch_all)
        break
      end
    end
  end
end