credit_due-8.x-1.0-alpha6/templates/navigation/menu--admin.html.twig

{#
/**
 * @file
 * Theme override 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.
 */
#}
{% 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, attributes, 0) }}

{% macro menu_links(items, attributes, menu_level) %}
  {% import _self as menus %}
  {% if items %}
    {% if menu_level == 0 %}
<ul{{ attributes.addClass('menu level-'~menu_level) }}>
  {% else %}
  <ul class="menu level-{{ menu_level }}">
    {% endif %}
    {%
    set drupal_to_dashicon = {
    'system-admin-content': 'dashicons-admin-post',
    'help-main': 'dashicons-editor-help',
    'entity-user-collection' : 'dashicons-admin-users',
    'system-admin-reports': 'dashicons-chart-line',
    'system-admin-config': 'dashicons-admin-settings',
    'system-modules-list': 'dashicons-admin-plugins',
    'system-themes-page': 'dashicons-admin-appearance',
    'system-admin-structure': 'dashicons-networking',
    'default': 'dashicons-admin-tools',
    }
    %}
    {% for item in items %}
      {%
      set classes = [
      'menu-item',
      item.is_expanded ? 'menu-item--expanded',
      item.is_collapsed ? 'menu-item--collapsed',
      item.in_active_trail ? 'menu-item--active-trail',
      ]
      %}

      {% set link_attributes, classy_route_name  = create_attribute(), 'default'  %}

      {% if item.url.isRouted %}
        {% set classy_route_name = item.url.routeName|replace({".":"-"})|clean_class %}
      {% endif %}

      {%
      set link_classes = [
      'link-level-' ~ menu_level,
      item.is_active ? 'is-active',
      ]
      %}

      {% if menu_level == 0  %}
        {% if drupal_to_dashicon[classy_route_name] is not defined %}
          {% set classy_route_name = 'default' %}
        {% endif %}
        {% set link_classes = link_classes|merge([drupal_to_dashicon[classy_route_name], 'dashicons-before']) %}
      {% endif %}


      <li{{ item.attributes.addClass(classes) }}>
        {{ link(item.title, item.url, link_attributes.addClass(link_classes)) }}
        {% if item.below %}
          {{ menus.menu_links(item.below, attributes, menu_level + 1) }}
        {% endif %}
      </li>
    {% endfor %}
  </ul>
  {% endif %}
  {% endmacro %}