Adaptation of Grav navigation partial for menu to show visible modular pages as fragment links

navigation.html.twig

{% macro loop(page) %}

	{% set menu_pages = page.children.visible %}

	{% for p in menu_pages %}

		{% set current_page = (p.active or p.activeChild) ? 'active' : '' %}

		{% set has_visible_modular_children = false %}
		{% for frag in p.children.modular if frag.header.visible %}
			{% set has_visible_modular_children = true %}
		{% endfor %}

		{% if p.children.visible.count > 0 or has_visible_modular_children %}
			<li class="has-children {{ current_page }}">
				<a href="{{ p.url }}">
					{% if p.header.icon %}<i class="fa fa-{{ p.header.icon }}"></i>{% endif %}
					{{ p.menu }}
					<span></span>
				</a>
				<ul>
					{{ _self.loop(p) }}
				</ul>
			</li>
		{% else %}

			{% if p.modular %}
				{% set url_prefix = (p.parent.active or p.parent.activeChild) ? '' : page.url ~ '/' %}
				<li><a href="{{ url_prefix }}#{{ p.header.id }}">{{ p.menu }}</a></li>

			{% else %}
				<li class="{{ current_page }}">
					<a href="{{ p.url }}">
						{% if p.header.icon %}<i class="fa fa-{{ p.header.icon }}"></i>{% endif %}
						{{ p.menu }}
					</a>
				</li>
			{% endif %}

		{% endif %}
	{% endfor %}
{% endmacro %}

<ul class="navigation">
	{% if theme_config.dropdown.enabled %}
		{{ _self.loop(pages) }}
	{% else %}
		{% for page in pages.children.visible %}
			{% set current_page = (page.active or page.activeChild) ? 'active' : '' %}
			<li class="{{ current_page }}">
				<a href="{{ page.url }}">
					{% if page.header.icon %}<i class="fa fa-{{ page.header.icon }}"></i>{% endif %}
					{{ page.menu }}
				</a>
			</li>
		{% endfor %}
	{% endif %}
	{% for mitem in site.menu %}
		<li>
			<a href="{{ mitem.url }}">
				{% if mitem.icon %}<i class="fa fa-{{ mitem.icon }}"></i>{% endif %}
				{{ mitem.text }}
			</a>
		</li>
	{% endfor %}
	{% if config.plugins.login.enabled and grav.user.username %}
		<li><i class="fa fa-lock"></i> {% include 'partials/login-status.html.twig' %}</li>
	{% endif %}
</ul>