Module: Crafty::Toolset

Defined in:
lib/crafty/toolset.rb

Class Method Summary collapse

Class Method Details

.define(mod, elements = [], empty_elements = []) ⇒ Object

Define the given elements and self-closing elements in the given module. The module will be modified to never overwrite existing methods, even if they have been defined in superclasses or other previously-included modules.



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# File 'lib/crafty/toolset.rb', line 8

def define(mod, elements = [], empty_elements = [])
  define_elements(mod, elements)
  define_empty_elements(mod, empty_elements)

  mod.module_eval do
    include Tools

    def self.append_features(mod)
      redefined = mod.instance_methods & self.instance_methods(false)
      if redefined.any?
        dup.tap do |safe|
          redefined.each do |method|
            safe.send :remove_method, method
          end
        end.append_features(mod)
      else
        super
      end
    end
  end
end

.define_elements(mod, elements) ⇒ Object

Define regular elements in the given module.



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# File 'lib/crafty/toolset.rb', line 31

def define_elements(mod, elements)
  elements.each do |element|
    mod.module_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{element}(*arguments, &block)
        attributes = arguments.pop if arguments.last.kind_of? Hash
        content = arguments.first || ""
        element!("#{element}", content, attributes, &block)
      end
    RUBY
  end
end

.define_empty_elements(mod, elements) ⇒ Object

Define empty, self-closing elements in the given module.



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# File 'lib/crafty/toolset.rb', line 44

def define_empty_elements(mod, elements)
  elements.each do |element|
    mod.module_eval <<-RUBY, __FILE__, __LINE__ + 1
      def #{element}(attributes = nil)
        element!("#{element}", nil, attributes)
      end
    RUBY
  end
end