Module: BluePrint::Behavior

Defined in:
lib/blue_print/behavior.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.auto_generate_class_methods?(base) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/blue_print/behavior.rb', line 7

def self.auto_generate_class_methods?(base)
  base.is_a?(Module) && !base.name.match(/ClassMethods$/)
end

.extended(base) ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 11

def self.extended(base)
  if auto_generate_class_methods?(base)
    base.module_eval <<-EOC
      module ClassMethods
        extend BluePrint::Behavior
      end
    EOC
  end
end

Instance Method Details

#behavior_name ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 41

def behavior_name
  @behavior_name ||=
    name.to_s.underscore.sub(/\/class_methods$/, '').gsub('/', '__').to_sym
end

#context ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 37

def context
  context_name.to_s.camelize.safe_constantize
end

#context_name ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 30

def context_name
  @context_name ||= name.to_s.underscore.tap do |name|
    name.sub!(/\/class_methods$/, '')
    name.sub!(%r{/[^/]+?$}, '')
  end.to_sym
end

#define_safe_method(target, punctuation, method_name) ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 50

def define_safe_method(target, punctuation, method_name)
  alias_method("#{target}_with_#{behavior_name}#{punctuation}", method_name)
  remove_method(method_name)

  module_eval <<-EOC
    def #{method_name}(*args)
      if #{context}.active?
        #{target}_with_#{behavior_name}#{punctuation}(*args)
      else
        super(*args)
      end
    end
  EOC
end

#method_added(method_name) ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 65

def method_added(method_name)
  return if @ignore_added_hook

  override_methods.push(method_name)

  @ignore_added_hook = true
  aliased_target = method_name.to_s.sub(/([?!=])$/, '')
  punctuation = Regexp.last_match ? Regexp.last_match[1] : ''

  define_safe_method(aliased_target, punctuation, method_name)

  context.try(:reaction!)
  @ignore_added_hook = false
end

#override_methods ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 46

def override_methods
  @override_methods ||= []
end

#prepended(base) ⇒ Object 



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# File 'lib/blue_print/behavior.rb', line 21

def prepended(base)
  base.send(:include, BluePrint::Helper)

  if const_defined?('ClassMethods')
    singleton = class << base; self; end
    singleton.send(:prepend, const_get('ClassMethods'))
  end
end