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_attributes are applied to the surrounding <div> element.

Public Instance Methods

render(item_container) click to toggle source
# File lib/simple_navigation/renderer/breadcrumbs.rb, line 16
def render(item_container)
  content = a_tags(item_container).join(join_with)
  content_tag(:div,
              prefix_for(content) + content,
              item_container.dom_attributes)
end

Protected Instance Methods

a_tags(item_container) click to toggle source
# File lib/simple_navigation/renderer/breadcrumbs.rb, line 25
def a_tags(item_container)
  item_container.items.each_with_object([]) do |item, list|
    next unless item.selected?
    list << tag_for(item)

    if include_sub_navigation?(item)
      list.concat a_tags(item.sub_navigation)
    end
  end
end
join_with() click to toggle source
# File lib/simple_navigation/renderer/breadcrumbs.rb, line 36
def join_with
  @join_with ||= options[:join_with] || ' '
end
prefix_for(content) click to toggle source
# File lib/simple_navigation/renderer/breadcrumbs.rb, line 44
def prefix_for(content)
  if !content.empty? && options[:prefix]
    options[:prefix]
  else
    ''
  end
end