Use is_mega_menu from nav_menu component in a menu block

Hi Thomas,

If you are using the "Main Navigation" block from "Block layout" admin page (/admin/structure/block) you are in fact using this "presenter template" : menu--main.html.twig

{% if items %}
  {{ pattern('nav_menu', {
    'menu_name': menu_name,
    'html_id': 'navigation-main',
    'items': items
  }) }}
{% endif %}

So, the settings of the pattern are hardcoded in this file and are not available from backoffice.

2 proposals

From backoffice

Because you are using the development version of ui_suite_dsfr, the menu items are already available as a configurable setting.

So you can use this little module https://www.drupal.org/project/ui_patterns_pattern_block → to place a block, pick the nav_menu component, and configure it.

However, as you can see, this module is not actively maintained, and will be rewritten and merged into the upcoming UI Patterns 2.x. So it may be a bit risky to use it.

From Twig code

Instead of modifying pattern-nav-menu.html.twig file, you can modify menu--main.html.twig. It is cleaner this way.

I recommend not doing the change directly in your local ui_suite_dsfr, but in a sub-theme.

I talked with Thomas, it is OK now