widget_generator.rb

require 'generators/cells/base'

module Apotomo
  module Generators
    module BasePathMethods
      private

      def base_path
        File.join('app/widgets', class_path)
      end

      def view_base_path
        File.join('app/widgets', class_path, file_name)
      end

      def js_path
        File.join('app/assets/javascripts/widgets', class_path, file_name)
      end

      def css_path
        File.join('app/assets/stylesheets/widgets', class_path, file_name)
      end        
    end
    
    module Views
      extend ActiveSupport::Concern

      included do
        class_option :parent, :type => :boolean, :default => false, :desc => 'Parent widget'

        source_root File.expand_path('../../templates', __FILE__)
      end

      def create_views
        for state in actions do
          @state  = state
          # only make views container for top level widgets, since they are most likely to have
          # child widgets
          @path = if parent_widget?
            File.join(view_base_path, 'views', "#{state}.html.#{handler}")  #base_path defined in Cells::Generators::Base.
          else
            File.join(view_base_path, "#{state}.html.#{handler}")  #base_path defined in Cells::Generators::Base.
          end
          template "view.#{handler}", @path
        end
      end

      protected

      def parent_widget?
        options[:parent]
      end      
    end        
    
    class WidgetGenerator < ::Cells::Generators::Base
      include BasePathMethods
      
      source_root File.expand_path('../../templates', __FILE__)
      
      hook_for(:template_engine)
      hook_for(:test_framework)  # TODO: implement rspec-apotomo.
      
      check_class_collision :suffix => "Widget"

      class_option :js,     :type => :boolean, :default => false, :desc => 'Generate javascript asset file'

      def create_cell_file
        template 'widget.rb', File.join(base_path, "#{file_name}_widget.rb")
      end

      def create_stylesheet_file
        template 'widget.css', "#{css_path}_widget.css"
      end            

      def create_script_file
        puts "create_script_file"
        if !javascript?
          # raise "coffee: #{js_path}_widget.js.coffee" 
          template 'widget.js.coffee', "#{js_path}_widget.js.coffee" 
        else
          puts "js: #{js_path}_widget.js" 
          template 'widget.js', "#{js_path}_widget.js"
        end
      end

      protected

      def ns_name
        names = class_name.split('::')
        ns = names[0..-2].map {|name| js_camelize name }.join('.')
        return names.last if ns.blank?
        ns << ".#{names.last}"
      end

      def js_camelize str
        str = str.to_s
        str.camelize.sub(/^\w/, str[0].downcase)
      end

      def javascript?
        options[:js] == true
      end
    end
  end
end