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   1  <?php
   2  
   3  /**
   4   * @file book-navigation.tpl.php
   5   * Default theme implementation to navigate books. Presented under nodes that
   6   * are a part of book outlines.
   7   *
   8   * Available variables:
   9   * - $tree: The immediate children of the current node rendered as an
  10   *   unordered list.
  11   * - $current_depth: Depth of the current node within the book outline.
  12   *   Provided for context.
  13   * - $prev_url: URL to the previous node.
  14   * - $prev_title: Title of the previous node.
  15   * - $parent_url: URL to the parent node.
  16   * - $parent_title: Title of the parent node. Not printed by default. Provided
  17   *   as an option.
  18   * - $next_url: URL to the next node.
  19   * - $next_title: Title of the next node.
  20   * - $has_links: Flags TRUE whenever the previous, parent or next data has a
  21   *   value.
  22   * - $book_id: The book ID of the current outline being viewed. Same as the
  23   *   node ID containing the entire outline. Provided for context.
  24   * - $book_url: The book/node URL of the current outline being viewed.
  25   *   Provided as an option. Not used by default.
  26   * - $book_title: The book/node title of the current outline being viewed.
  27   *   Provided as an option. Not used by default.
  28   *
  29   * @see template_preprocess_book_navigation()
  30   */
  31  ?>
  32  <?php if ($tree || $has_links): ?>
  33    <div id="book-navigation-<?php print $book_id; ?>" class="book-navigation">
  34      <?php print $tree; ?>
  35  
  36      <?php if ($has_links): ?>
  37      <div class="page-links clear-block">
  38        <?php if ($prev_url) : ?>
  39          <a href="<?php print $prev_url; ?>" class="page-previous" title="<?php print t('Go to previous page'); ?>"><?php print t('‹ ') . $prev_title; ?></a>
  40        <?php endif; ?>
  41        <?php if ($parent_url) : ?>
  42          <a href="<?php print $parent_url; ?>" class="page-up" title="<?php print t('Go to parent page'); ?>"><?php print t('up'); ?></a>
  43        <?php endif; ?>
  44        <?php if ($next_url) : ?>
  45          <a href="<?php print $next_url; ?>" class="page-next" title="<?php print t('Go to next page'); ?>"><?php print $next_title . t(' ›'); ?></a>
  46        <?php endif; ?>
  47      </div>
  48      <?php endif; ?>
  49  
  50    </div>
  51  <?php endif; ?>