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