Posibility insert string before and after link

[havran]

From issue https://github.com/codeplant/simple-navigation/issues/132

Example (custom renderer):

class ContentListRenderer < SimpleNavigation::Renderer::List
  private

  def list_content(item_container)
    item_container.items.map { |item|
      li_options = item.html_options.except(:link)
      li_content = tag_for(item)
      li_content = item.content_before + li_content + item.content_after
      if include_sub_navigation?(item)
        li_content << render_sub_navigation_for(item)
      end
      content_tag(:li, li_content, li_options)
    }.join
  end
end

and in navigation (bootstrap list group):

SimpleNavigation::Configuration.run do |navigation|
  navigation.items do |m|
    m.dom_class = 'list-group'
    m.item :approval_list, 'List, '',
           html: { class: 'list-group-item' },
           content_after: "<span class=\"badge\">1234</span>".html_safe,
           link_html: {
             data: {
               push: true,
               target: '#messages .area-content'
             }
           }
  end
end

[simonc]

Hi @havran and thank you for your PR.

Could you rename html_before and html_after to content_before and content_after? It would be clearer next to html_opts.

An can you write the related tests?

Thank you 😊