/**
* @param IItem $item Start item
*/
public function __construct(IItem $item)
{
$current = $item->getParent();
if ($current) {
// If root isn't the only item in structure
// Until we get to the root item
while ($current->getParent()) {
$this->itemPath[] = $current;
$current = $current->getParent();
}
}
$this->itemPath = array_reverse($this->itemPath);
}
/**
* @param IItem $item
* @return null|IItem
* @throws Component\Exception\Exception
*/
public function remove(IItem $item)
{
if (null === $item->getParent()) {
throw new Exception('Root item can\'t be removed');
}
$parent = $item->getParent();
$parent->removeChild($item);
return $parent;
}
/**
* Checks if current position is valid
*
* @return bool
*/
public function valid()
{
return $this->current->getParent() !== null;
}
