Default theme implementation 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. Provided as an option. Not used by default.

See also

template_preprocess_book_navigation()

File

core/modules/book/templates/book-navigation.tpl.php

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