helpers.rb

module Helpers
  class << self
    def included(base)
      base.extend ClassMethods
    end
  end
  
  module ClassMethods
    helpers do
      def itunes
        ITUNES
      end

      def link_to(label, options = {})
        url = options.delete(:url) || '/'
        
        html_options = begin
          if options.has_key?(:html)
            (options.delete(:html).map do |k,v|
              "#{k}=\"#{CGI.escapeHTML(v)}\""
            end).join(' ')
          else
            ''
          end
        end
        
        if options.any?
          url << '?' + options.to_param
        end

        "<a href=\"#{URI.escape(url)}\" #{html_options}>#{label}</a>"
      end

      def partial(page, options={})
        haml "_#{page.to_s}".to_sym, options.merge!(:layout => false)
      end

      def link_to_anchor(label, name)
        url = "##{name}"
        link_to label, url
      end

      def javascript_include_tag(*names)
        (names.flatten.map do |name|
          "<script src='/javascripts/#{name.to_s}.js?#{Time.now.to_i}' type='text/javascript'></script>"
        end) * "\n"
      end

      def stylesheet_link_tag(*names)
        (names.flatten.map do |name|
          "<link href='/#{name.to_s}.css' media='all' rel='stylesheet' type='text/css' />"
        end) * "\n"
      end
      
      def current_artist
        URI.unescape(params[:artist] || '')
      end
    end
  end
end