function theme_book_navigation in Drupal 4
Same name and namespace in other branches
- 5 modules/book/book.module \theme_book_navigation()
Prepares the links to children (TOC) and forward/backward navigation for a node presented as a book page.
Related topics
1 theme call to theme_book_navigation()
- book_nodeapi in modules/
book.module - Implementation of hook_nodeapi().
File
- modules/
book.module, line 504 - Allows users to collaboratively author a book.
Code
function theme_book_navigation($node) {
$output = '';
$links = '';
if ($node->nid) {
$tree = book_tree($node->nid);
if ($prev = book_prev($node)) {
drupal_add_link(array(
'rel' => 'prev',
'href' => url('node/' . $prev->nid),
));
$links .= l(t('‹ ') . $prev->title, 'node/' . $prev->nid, array(
'class' => 'page-previous',
'title' => t('Go to previous page'),
));
}
if ($node->parent) {
drupal_add_link(array(
'rel' => 'up',
'href' => url('node/' . $node->parent),
));
$links .= l(t('up'), 'node/' . $node->parent, array(
'class' => 'page-up',
'title' => t('Go to parent page'),
));
}
if ($next = book_next($node)) {
drupal_add_link(array(
'rel' => 'next',
'href' => url('node/' . $next->nid),
));
$links .= l($next->title . t(' ›'), 'node/' . $next->nid, array(
'class' => 'page-next',
'title' => t('Go to next page'),
));
}
if (isset($tree) || isset($links)) {
$output = '<div class="book-navigation">';
if (isset($tree)) {
$output .= $tree;
}
if (isset($links)) {
$output .= '<div class="page-links">' . $links . '<br class="clear" /></div>';
}
$output .= '</div>';
}
}
return $output;
}