4 * Theme override to display the main menu.
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
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.
22 {% import _self as menus %}
25 We call a macro which calls itself to render the full tree.
26 @see http://twig.sensiolabs.org/doc/tags/macro.html
28 1. We use menu_name (see above) to create a CSS class name from it.
29 See https://www.drupal.org/node/2649076
31 {{ menus.menu_links(items, attributes, 0, menu_name) }} {# 1. #}
33 {% macro menu_links(items, attributes, menu_level, menu_name) %} {# 1. #}
34 {% import _self as menus %}
38 'menu-' ~ menu_name|clean_class,
43 set submenu_classes = [
44 'menu-' ~ menu_name|clean_class ~ '__submenu',
48 {% if menu_level == 0 %}
49 <ul{{ attributes.addClass(menu_classes).setAttribute('data-drupal-selector','menu-main') }}> {# 1. #}
51 <ul{{ attributes.removeClass(menu_classes).addClass(submenu_classes) }}> {# 1. #}
53 {% for item in items %}
57 'menu-' ~ menu_name|clean_class ~ '__item',
58 item.is_expanded ? 'menu-' ~ menu_name|clean_class ~ '__item--expanded',
59 item.is_collapsed ? 'menu-' ~ menu_name|clean_class ~ '__item--collapsed',
60 item.in_active_trail ? 'menu-' ~ menu_name|clean_class ~ '__item--active-trail',
66 'menu-' ~ menu_name|clean_class ~ '__link',
69 <li{{ item.attributes.addClass(item_classes) }}>{# 1. #}
75 item.attributes.removeClass(item_classes).addClass(link_classes)
79 {{ menus.menu_links(item.below, attributes, menu_level + 1, menu_name) }} {# 1. #}