/**
* Build a hierarchical menu
*
* @param object $content \MarkdownExtended\API\ContentInterface
* @param object $formatter \MarkdownExtended\API\OutputFormatInterface
*
* @return string
*/
public function getToc(ContentInterface $md_content, OutputFormatInterface $formatter, array $attributes = null)
{
$cfg_toc_max_level = $this->getConfigOrDefault('toc_max_level');
$cfg_toc_title = $this->getConfigOrDefault('toc_title');
$cfg_toc_title_level = $this->getConfigOrDefault('toc_title_level');
$cfg_toc_id = $this->getConfigOrDefault('toc_id');
$cfg_toc_class = $this->getConfigOrDefault('toc_class');
$cfg_toc_item_title = $this->getConfigOrDefault('toc_item_title');
$menu = $md_content->getMenu();
$content = $list_content = '';
$max_level = isset($attributes['max_level']) ? $attributes['max_level'] : $cfg_toc_max_level;
if (!empty($menu) && count($menu) > 1) {
$depth = 0;
$current_level = null;
foreach ($menu as $item_id => $menu_item) {
$_item_id = Helper::getSafeIdString($item_id);
if (isset($max_level) && $menu_item['level'] > $max_level) {
continue;
}
$diff = $menu_item['level'] - (is_null($current_level) ? $menu_item['level'] : $current_level);
if ($diff > 0) {
$list_content .= str_repeat('<ul><li>', $diff);
} elseif ($diff < 0) {
$list_content .= str_repeat('</li></ul></li>', -$diff);
$list_content .= '<li>';
} else {
if (!is_null($current_level)) {
$list_content .= '</li>';
}
$list_content .= '<li>';
}
$depth += $diff;
$list_content .= $formatter->buildTag('link', $menu_item['text'], array('href' => '#' . $_item_id, 'title' => isset($attributes['toc_item_title']) ? $attributes['toc_item_title'] : $cfg_toc_item_title));
$current_level = $menu_item['level'];
}
if ($depth != 0) {
$list_content .= str_repeat('</ul></li>', $depth);
}
$content .= $formatter->buildTag('title', $cfg_toc_title, array('level' => isset($attributes['toc_title_level']) ? $attributes['toc_title_level'] : $cfg_toc_title_level, 'id' => isset($attributes['toc_id']) ? $attributes['toc_id'] : $cfg_toc_id, 'no-addon' => true));
$content .= $formatter->buildTag('unordered_list', $list_content, array('class' => isset($attributes['class']) ? $attributes['class'] : $cfg_toc_class));
}
return $content;
}
private function _hardDebugContent(ContentInterface $content)
{
echo Helper::debug($content->getBody(), 'content body');
echo Helper::debug($content->getNotes(), 'content notes', false);
echo Helper::debug($content->getMetadata(), 'content metadata', false);
}
