uswds_base-8.x-2.0-alpha1/templates/navigation/menu--sidebar_first.html.twig

{#
/**
 * @file
 * Override of system/menu.html.twig for a sidebar menu.
 */
#}

{% import _self as menus %}

{#
  We call a macro which calls itself to render the full tree.
  @see http://twig.sensiolabs.org/doc/tags/macro.html
#}
{{ menus.menu_links(items, 0) }}

{% macro menu_links(items, menu_level, parent) %}
  {% import _self as menus %}

  {% if items %}
    <ul class="{% if menu_level == 0 %}usa-sidenav{% else %}usa-sidenav-sublist{% endif %}">
    {% for item in items %}
      {%
        set item_classes = [
        'usa-sidenav-item',
        item.is_expanded and item.below ? 'expanded dropdown',
        item.in_active_trail ? 'active active-trail',
        loop.first ? 'first',
        loop.last ? 'last',
      ]
      %}
      <li{{ item.attributes.addClass(item_classes) }}>
        <a href="{{ item.url }}"{% if item.in_active_trail %} class="usa-current"{% endif %}>
          <span>{{ item.title }}</span>
        </a>

      </li>
      {% if item.is_expanded and menu_level < 2 and item.below %}
        {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent) }}
      {% elseif item.is_expanded and menu_level == 0 and item.below %}
        {{ menus.menu_links(item.below, menu_level + 1, megamenu, loop.index, item, duplicate_parent) }}
        {{ _self.menu_links(item.below, attributes.removeClass(classes), menu_level + 1, classes, dropdown_classes) }}
      {% endif %}
    {% endfor %}
    </ul>
  {% endif %}
{% endmacro %}