withassociates/slices

# This module provides helper methods rendering pages and slices.
module PagesHelper
  include NavigationHelper
  include AssetsHelper

  # Defines and renders a container in a layout.
  #
  # For example adding the following to a layout will create two containers called
  # container_one and container_two
  #
  #   <article class="container_one">
  #     <%= container "container_one" %>
  #   </article>
  #   <aside class="container_two">
  #     <%= container "container_two" %>
  #   </aside>
  #
  # @param [String]   container     Name of container
  # @return [String]                Contents of rendered slices in container
  #
  def container(container, options = {})
    if @slice_renderer.present?
      @slice_renderer.render_container(container)
    end
  end

  # Returns the text with all the Textile[http://www.textism.com/tools/textile] codes turned into HTML tags.
  #
  # @param [String] text              Text to be textilized
  # @return [String]                  Textilized string
  #
  def textilize(text)
    unless text.blank?
      red_cloth = RedCloth.new(text)
      red_cloth.no_span_caps = true
      red_cloth.to_html.html_safe
    end
  end

  # Converts markdown to html.
  #
  # @param [String] text
  # @return [String]
  #
  def markdown(text)
    return if text.blank?
    renderer = Redcarpet::Render::HTML.new(hard_wrap: true)
    parser = Redcarpet::Markdown.new(renderer)
    parser.render(text).html_safe
  end

  # Quick link to edit the current page in the CMS
  #
  # @return [String]                      Edit in CMS link
  #
  def edit_in_cms
    if admin_signed_in?
      links = []
      links << link_to("Edit #{@page.class.to_s.underscore.humanize} in CMS", admin_page_path(@page, locale: I18n.locale), target: '_blank')
      links << link_to('Edit template in CMS', admin_page_path(@page.parent, entries: 1, locale: I18n.locale), target: '_blank') if @page.entry?
      content = links.collect {|l| content_tag(:p, l) }.join.html_safe

      content_tag(:div, content, id: 'edit_in_cms')
    end
  end

  # Translates the key and return an empty string if there is no translation.
  #
  #
  # @param [String] key                   Translation key
  # @param [Hash]   options
  # @return [String]                      Translated key
  #
  def if_t(key, options = {})
    translate(key, options) || ''
  end
end