Module: StateManager::Helpers::Methods

Defined in:
lib/state_manager/helpers.rb

Class Method Summary collapse

Class Method Details

.define_methods(specification, target_class, property) ⇒ Object 



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# File 'lib/state_manager/helpers.rb', line 11

def self.define_methods(specification, target_class, property)
  self.define_methods_helper(specification, target_class, [], property)
end

.define_methods_helper(specification, target_class, name_parts, property) ⇒ Object 



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# File 'lib/state_manager/helpers.rb', line 15

def self.define_methods_helper(specification, target_class, name_parts, property)
  sm_proc = Proc.new do
    self.send "#{property}_manager"
  end

  specification.events.each do |name, event|
    target_class.send :define_method, "#{name.to_s}!" do | *args |
      state_manager = instance_eval &sm_proc
      state_manager.send_event! name, *args
    end

    target_class.send :define_method, "can_#{name.to_s}?" do
      state_manager = instance_eval &sm_proc
      state_manager.respond_to_event?(name)
    end
  end

  specification.states.each do |name, child_class|
    state_name_parts = name_parts.dup << name
    method = state_name_parts.join('_')
    path = state_name_parts.join('.')
    target_class.send :define_method, "#{method}?" do
      state_manager = instance_eval &sm_proc
      state_manager.in_state?(path)
    end

    define_methods_helper(child_class.specification, target_class, state_name_parts, property)
  end
end