/**
* 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;
}
/**
* Moves child to specified position. Rearange other children accordingly.
*
* @param MenuItem $child Child to move.
* @param numeric $position Position to move child to.
*/
public function moveChildToPosition(MenuItem $child, $position)
{
$name = $child->getName();
$order = array_keys($this->children);
$oldPosition = array_search($name, $order);
unset($order[$oldPosition]);
$order = array_values($order);
array_splice($order, $position, 0, $name);
$this->reorderChildren($order);
}
/**
* @expectedException InvalidArgumentException
*/
public function testReorderingWithTooManyItemNames()
{
$menu = new MenuItem('root');
$menu->addChild('c1');
$menu->reorderChildren(array('c1', 'c3'));
}