class RocketNavigation::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/rocket_navigation/renderer/breadcrumbs.rb, line 16
def render(item_container)
  content = ActiveSupport::SafeBuffer.new
  content << prefix_for(content)
  content << a_tags(item_container)
  content_tag(
    :div,
    content,
    container_html
  )
end

Protected Instance Methods

a_tags(item_container) click to toggle source
# File lib/rocket_navigation/renderer/breadcrumbs.rb, line 29
def a_tags(item_container)
  list = ActiveSupport::SafeBuffer.new
  item_container.items.each do |item|
    next unless item.selected?
    list << tag_for(item)

    if include_sub_navigation?(item)
      list << join_with
      list << a_tags(item.sub_navigation)
    end
  end
  list
end
join_with() click to toggle source
# File lib/rocket_navigation/renderer/breadcrumbs.rb, line 43
def join_with
  @join_with ||= options[:join_with] || ' '.html_safe
end
prefix_for(content) click to toggle source
# File lib/rocket_navigation/renderer/breadcrumbs.rb, line 51
def prefix_for(content)
  if !content.empty? && options[:prefix]
    options[:prefix]
  else
    ''
  end
end