require "webrat/core_extensions/detect_mapped"
require "webrat/core/locators/locator"

module Webrat
  module Locators

    class LabelLocator < Locator # :nodoc:

      def locate
        Label.load(@session, label_element)
      end

      def label_element
        label_elements.detect do |label_element|
          text(label_element) =~ /^\W*#{Regexp.escape(@value.to_s)}(\b|\Z)/i
        end
      end

      def label_elements
        @dom.xpath(*Label.xpath_search)
      end

      def text(label_element)
        str = label_element.inner_text
        str.gsub!("\n","")
        str.strip!
        str.squeeze!(" ")
        str
      end

    end

  end
end