class SimpleNavigation::Renderer::Breadcrumbs

Renders an ItemContainer as a <div> element and its containing items as <a> elements. It only renders 'selected' elements.

By default, the renderer sets the item's key as dom_id for the rendered <a> element unless the config option autogenerate_item_ids is set to false. The id can also be explicitely specified by setting the id in the html-options of the 'item' method in the config/navigation.rb file. The ItemContainer's dom_class and dom_id are applied to the surrounding <div> element.

Public Instance Methods

render(item_container) click to toggle source
# File lib/simple_navigation/rendering/renderer/breadcrumbs.rb, line 13
def render(item_container)
  content = a_tags(item_container).join(join_with)
  content_tag(:div,
    prefix_for(content) + content,
    {:id => item_container.dom_id, :class => item_container.dom_class})
end

Protected Instance Methods

a_tags(item_container) click to toggle source
# File lib/simple_navigation/rendering/renderer/breadcrumbs.rb, line 22
def a_tags(item_container)
  item_container.items.inject([]) do |list, item|
    if item.selected?
      list << tag_for(item) if item.selected?
      if include_sub_navigation?(item)
        list.concat a_tags(item.sub_navigation)
      end
    end
    list
  end
end
join_with() click to toggle source
# File lib/simple_navigation/rendering/renderer/breadcrumbs.rb, line 34
def join_with
  @join_with ||= options[:join_with] || " "
end
prefix_for(content) click to toggle source
# File lib/simple_navigation/rendering/renderer/breadcrumbs.rb, line 42
def prefix_for(content)
  content.empty? ? '' : options[:prefix] || ''
end