45 lines
1.1 KiB
Twig
45 lines
1.1 KiB
Twig
{#
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/**
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* @file
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* Default theme implementation to display a book tree.
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*
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* Returns HTML for a wrapper for a book sub-tree.
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*
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* Available variables:
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* - items: A nested list of book items. Each book item contains:
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* - attributes: HTML attributes for the book item.
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* - below: The book item child items.
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* - title: The book link title.
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* - url: The book link URL, instance of \Drupal\Core\Url.
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*
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* @ingroup themeable
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*/
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#}
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{% import _self as book_tree %}
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{#
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We call a macro which calls itself to render the full tree.
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@see http://twig.sensiolabs.org/doc/tags/macro.html
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#}
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{{ book_tree.book_links(items, attributes, 0) }}
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{% macro book_links(items, attributes, menu_level) %}
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{% import _self as book_tree %}
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{% if items %}
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{% if menu_level == 0 %}
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<ul{{ attributes }}>
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{% else %}
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<ul>
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{% endif %}
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{% for item in items %}
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<li{{ item.attributes }}>
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{{ link(item.title, item.url) }}
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{% if item.below %}
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{{ book_tree.book_links(item.below, attributes, menu_level + 1) }}
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{% endif %}
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</li>
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{% endfor %}
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</ul>
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{% endif %}
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{% endmacro %}
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