menu_item_fields-8.x-1.5/templates/menu.html.twig

{#
/**
 * @file
 * Default theme implementation to display a menu.
 *
 * Available variables:
 * - menu_name: The machine name of the menu.
 * - items: A nested list of menu items. Each menu item contains:
 *   - attributes: HTML attributes for the menu item.
 *   - below: The menu item child items.
 *   - title: The menu link title.
 *   - url: The menu link URL, instance of \Drupal\Core\Url
 *   - localized_options: Menu link localized options.
 *   - is_expanded: TRUE if the link has visible children within the current
 *     menu tree.
 *   - is_collapsed: TRUE if the link has children within the current menu tree
 *     that are not currently visible.
 *   - in_active_trail: TRUE if the link is in the active trail.
 *
 * @ingroup themeable
 *
 * Copy of menu.html.twig from system module but modified to render
 * the menu_link_content entity with its fields when it is available.
 *
 * Use this template in a theme that want to override the menu template
 * and the menu links have fields in them.
 *
 * The code modification is to replace
 * @code
 * {{ link(item.title, item.url) }}
 * @endcode
 *
 * from the original template with:
 *
 * @code
 * {% if item.content %}
 *   {{ item.content }}
 * {% else %}
 *   {{ link(item.title, item.url) }}
 * {% endif %}
 * @endcode
 */
#}
{% import _self as menus %}

{#
  We call a macro which calls itself to render the full tree.
  https://twig.symfony.com/doc/3.x/tags/macro.html
#}
{{ menus.menu_links(items, attributes, 0) }}

{% macro menu_links(items, attributes, menu_level) %}
  {% import _self as menus %}
  {% if items %}
    {% if menu_level == 0 %}
      <ul{{ attributes }}>
    {% else %}
      <ul>
    {% endif %}
    {% for item in items %}
      <li{{ item.attributes }}>
        {% if item.content %}
          {{ item.content }}
        {% else %}
          {{ link(item.title, item.url) }}
        {% endif %}
        {% if item.below %}
          {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
        {% endif %}
      </li>
    {% endfor %}
    </ul>
  {% endif %}
{% endmacro %}