<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Pdf
 * @subpackage Actions
 * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id$
 */

/**
 * Iteratable objects container
 *
 * @package    Zend_Pdf
 * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Pdf_RecursivelyIteratableObjectsContainer implements RecursiveIterator, Countable
{
    protected $_objects = [];

    public function __construct(array $objects) { $this->_objects = $objects; }

    #[\ReturnTypeWillChange]
    public function current()      { return current($this->_objects);            }
    #[\ReturnTypeWillChange]
    public function key()          { return key($this->_objects);                }
    #[\ReturnTypeWillChange]
    public function next()         { return next($this->_objects);               }
    #[\ReturnTypeWillChange]
    public function rewind()       { return reset($this->_objects);              }
    public function valid(): bool  { return current($this->_objects) !== false;  }
    public function getChildren(): ?RecursiveIterator  { return current($this->_objects); }
    public function hasChildren(): bool  { return count($this->_objects) > 0;    }

    public function count(): int   { return count($this->_objects);              }
}