book_build_active_trail

Versions

6

book_build_active_trail($book_link)

Build an active trail to show in the breadcrumb.

Code

modules/book/book.module, line 619

<?php
function book_build_active_trail($book_link) {
  static $trail;

  if (!isset($trail)) {
    $trail = array();
    $trail[] = array('title' => t('Home'), 'href' => '<front>', 'localized_options' => array());

    $tree = menu_tree_all_data($book_link['menu_name'], $book_link);
    $curr = array_shift($tree);

    while ($curr) {
      if ($curr['link']['href'] == $book_link['href']) {
        $trail[] = $curr['link'];
        $curr = FALSE;
      }
      else {
        if ($curr['below'] && $curr['link']['in_active_trail']) {
          $trail[] = $curr['link'];
          $tree = $curr['below'];
        }
        $curr = array_shift($tree);
      }
    }
  }
  return $trail;
}
?>

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