{#
/**
* @file
* Theme override to display the main 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.
*/
#}
{% import _self as menus %}
{#
We call a macro which calls itself to render the full tree.
@see https://twig.symfony.com/doc/3.x/tags/macro.html
1. We use menu_name (see above) to create a CSS class name from it.
See https://www.drupal.org/node/2649076
#}
{{ menus.menu_links(items, attributes, 0, menu_name) }} {# 1. #}
{% macro menu_links(items, attributes, menu_level, menu_name) %} {# 1. #}
{% import _self as menus %}
{# 1. #}
{%
set menu_classes = [
'menu-' ~ menu_name|clean_class,
]
%}
{# 1. #}
{%
set submenu_classes = [
'menu-' ~ menu_name|clean_class ~ '__submenu',
]
%}
{% if items %}
{% if menu_level == 0 %}
{# 1. #}
{% else %}
{# 1. #}
{% endif %}
{% for item in items %}
{# 1. #}
{%
set item_classes = [
'menu-' ~ menu_name|clean_class ~ '__item',
item.is_expanded ? 'menu-' ~ menu_name|clean_class ~ '__item--expanded',
item.is_collapsed ? 'menu-' ~ menu_name|clean_class ~ '__item--collapsed',
item.in_active_trail ? 'menu-' ~ menu_name|clean_class ~ '__item--active-trail',
]
%}
{# 1. #}
{%
set link_classes = [
'menu-' ~ menu_name|clean_class ~ '__link',
]
%}
- {# 1. #}
{# 1. #}
{{
link(
item.title,
item.url,
item.attributes.removeClass(item_classes).addClass(link_classes)
)
}}
{% if item.below %}
{{ menus.menu_links(item.below, attributes, menu_level + 1, menu_name) }} {# 1. #}
{% endif %}
{% endfor %}
{% endif %}
{% endmacro %}