1{#
2/**
3 * @file
4 * Theme override to display a menu.
5 *
6 * Available variables:
7 * - menu_name: The machine name of the menu.
8 * - items: A nested list of menu items. Each menu item contains:
9 *   - attributes: HTML attributes for the menu item.
10 *   - below: The menu item child items.
11 *   - title: The menu link title.
12 *   - url: The menu link url, instance of \Drupal\Core\Url
13 *   - localized_options: Menu link localized options.
14 *   - is_expanded: TRUE if the link has visible children within the current
15 *     menu tree.
16 *   - is_collapsed: TRUE if the link has children within the current menu tree
17 *     that are not currently visible.
18 *   - in_active_trail: TRUE if the link is in the active trail.
19 */
20#}
21{% import _self as menus %}
22
23{#
24  We call a macro which calls itself to render the full tree.
25  @see https://twig.symfony.com/doc/1.x/tags/macro.html
26#}
27{{ menus.menu_links(items, attributes, 0) }}
28
29{% macro menu_links(items, attributes, menu_level) %}
30  {% import _self as menus %}
31  {% if items %}
32    {% if menu_level == 0 %}
33      <ul{{ attributes }}>
34    {% else %}
35      <ul>
36    {% endif %}
37    {% for item in items %}
38      <li{{ item.attributes }}>
39        {{ link(item.title, item.url) }}
40        {% if item.below %}
41          {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
42        {% endif %}
43      </li>
44    {% endfor %}
45    </ul>
46  {% endif %}
47{% endmacro %}
48