/**
* Renders menu tree. Internal method.
*
* @param MenuItem $item Menu item
* @param integer $depth The depth of children to render
* @param boolean $renderAsChild Render with attributes on the li (true) or the ul around the children (false)
*
* @return string
*/
protected function doRender(MenuItem $item, $depth = null, $renderAsChild = false)
{
/**
* Return an empty string if any of the following are true:
* a) The menu has no children eligible to be displayed
* b) The depth is 0
* c) This menu item has been explicitly set to hide its children
*/
if (!$item->hasChildren() || $depth === 0 || !$item->getShowChildren()) {
return '';
}
if ($renderAsChild) {
$attributes = array('class' => 'menu_level_'.$item->getLevel());
}
else {
$attributes = $item->getAttributes();
}
// render children with a depth - 1
$childDepth = ($depth === null) ? null : ($depth - 1);
$html = $this->format('<ul'.$this->renderHtmlAttributes($attributes).'>', 'ul', $item->getLevel());
$html .= $this->renderChildren($item, $childDepth);
$html .= $this->format('</ul>', 'ul', $item->getLevel());
return $html;
}
/**
*
* @param MenuItem $menuItem
* @return array
*/
public function getMenuAttributes(MenuItem $item)
{
// if we don't have access or this item is marked to not be shown
if (!$item->shouldBeRendered()) {
return;
}
$depth = $item->getLevel();
$maxDepth = $item->getMaxDepth();
$class = array();
if ($maxDepth > 1) {
$class[] = "deeper";
}
$class[] = "level_{$depth}";
// retrieve the attributes and put the final class string back on it
$attributes = $item->getAttributes();
if (!empty($class)) {
$attributes['class'] = implode(' ', $class);
}
return $attributes;
}