D10 theme for Island Scholar v2 Clone of "vre2024"
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{#
/**
* @file
* Theme override to navigate books.
*
* Presented under nodes that are a part of book outlines.
*
* Available variables:
* - tree: The immediate children of the current node rendered as an unordered
* list.
* - current_depth: Depth of the current node within the book outline. Provided
* for context.
* - prev_url: URL to the previous node.
* - prev_title: Title of the previous node.
* - parent_url: URL to the parent node.
* - parent_title: Title of the parent node. Not printed by default. Provided
* as an option.
* - next_url: URL to the next node.
* - next_title: Title of the next node.
* - has_links: Flags TRUE whenever the previous, parent or next data has a
* value.
* - book_id: The book ID of the current outline being viewed. Same as the node
* ID containing the entire outline. Provided for context.
* - book_url: The book/node URL of the current outline being viewed. Provided
* as an option. Not used by default.
* - book_title: The book/node title of the current outline being viewed.
*
* @see template_preprocess_book_navigation()
*/
#}
{{ attach_library('vre2024/book') }}
{% if tree or has_links %}
<nav class="book-navigation" role="navigation" aria-labelledby="book-label-{{ book_id }}">
{{ tree }}
{% if has_links %}
<h2 class="visually-hidden">{{ 'Book traversal links for'|t }} {{ book_title }}</h2>
<ul class="book-pager">
{% if prev_url %}
<li class="book-pager-item book-pager-item-previous">
<a href="{{ prev_url }}" rel="prev" title="{{ 'Go to previous page'|t }}"><span class="white-color">&#x2190;</span> {{ prev_title }}</a>
</li>
{% endif %}
{% if parent_url %}
<li class="book-pager-item book-pager-item-center">
<a href="{{ parent_url }}" title="{{ 'Go to parent page'|t }}"><span class="white-color">&#x290A;</span> {{ 'Up'|t }}</a>
</li>
{% endif %}
{% if next_url %}
<li class="book-pager-item book-pager-item-next">
<a href="{{ next_url }}" rel="next" title="{{ 'Go to next page'|t }}">{{ next_title }} <span class="white-color">&#x2192;</span></a>
</li>
{% endif %}
</ul>
{% endif %}
</nav>
{% endif %}