Chris@2: <?php
Chris@2: /*
Chris@2:  * This file is part of PharIo\Manifest.
Chris@2:  *
Chris@2:  * (c) Arne Blankerts <arne@blankerts.de>, Sebastian Heuer <sebastian@phpeople.de>, Sebastian Bergmann <sebastian@phpunit.de>
Chris@2:  *
Chris@2:  * For the full copyright and license information, please view the LICENSE
Chris@2:  * file that was distributed with this source code.
Chris@2:  */
Chris@2: 
Chris@2: namespace PharIo\Manifest;
Chris@2: 
Chris@2: use DOMElement;
Chris@2: use DOMNodeList;
Chris@2: 
Chris@2: abstract class ElementCollection implements \Iterator {
Chris@2:     /**
Chris@2:      * @var DOMNodeList
Chris@2:      */
Chris@2:     private $nodeList;
Chris@2: 
Chris@2:     private $position;
Chris@2: 
Chris@2:     /**
Chris@2:      * ElementCollection constructor.
Chris@2:      *
Chris@2:      * @param DOMNodeList $nodeList
Chris@2:      */
Chris@2:     public function __construct(DOMNodeList $nodeList) {
Chris@2:         $this->nodeList = $nodeList;
Chris@2:         $this->position = 0;
Chris@2:     }
Chris@2: 
Chris@2:     abstract public function current();
Chris@2: 
Chris@2:     /**
Chris@2:      * @return DOMElement
Chris@2:      */
Chris@2:     protected function getCurrentElement() {
Chris@2:         return $this->nodeList->item($this->position);
Chris@2:     }
Chris@2: 
Chris@2:     public function next() {
Chris@2:         $this->position++;
Chris@2:     }
Chris@2: 
Chris@2:     public function key() {
Chris@2:         return $this->position;
Chris@2:     }
Chris@2: 
Chris@2:     public function valid() {
Chris@2:         return $this->position < $this->nodeList->length;
Chris@2:     }
Chris@2: 
Chris@2:     public function rewind() {
Chris@2:         $this->position = 0;
Chris@2:     }
Chris@2: }