<?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_Gdata

 * @subpackage Media

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

/**

 * @see Zend_Gdata_App_Extension

 */

require_once 'Zend/Gdata/App/Extension.php';

/**

 * Represents the media:hash element

 *

 * @category   Zend

 * @package    Zend_Gdata

 * @subpackage Media

 * @license    http://framework.zend.com/license/new-bsd     New BSD License

 */

class Zend_Gdata_Media_Extension_MediaHash extends Zend_Gdata_Extension

{

    protected $_rootElement = 'hash';

    protected $_rootNamespace = 'media';

    protected $_algo = null;

    /**

     * Constructs a new MediaHash element

     *

     * @param string $text

     * @param string $algo

     */

    public function __construct($text = null, $algo = null)

    {

        $this->registerAllNamespaces(Zend_Gdata_Media::$namespaces);

        parent::__construct();

        $this->_text = $text;

        $this->_algo = $algo;

    }

    /**

     * Retrieves a DOMElement which corresponds to this element and all

     * child properties.  This is used to build an entry back into a DOM

     * and eventually XML text for sending to the server upon updates, or

     * for application storage/persistence.

     *

     * @param DOMDocument $doc The DOMDocument used to construct DOMElements

     * @return DOMElement The DOMElement representing this element and all

     * child properties.

     */

    public function getDOM($doc = null, $majorVersion = 1, $minorVersion = null)

    {

        $element = parent::getDOM($doc, $majorVersion, $minorVersion);

        if ($this->_algo !== null) {

            $element->setAttribute('algo', $this->_algo);

        }

        return $element;

    }

    /**

     * Given a DOMNode representing an attribute, tries to map the data into

     * instance members.  If no mapping is defined, the name and value are

     * stored in an array.

     *

     * @param DOMNode $attribute The DOMNode attribute needed to be handled

     * @throws Zend_Gdata_App_InvalidArgumentException

     */

    protected function takeAttributeFromDOM($attribute)

    {

        switch ($attribute->localName) {

        case 'algo':

            $this->_algo = $attribute->nodeValue;

            break;

        default:

            parent::takeAttributeFromDOM($attribute);

        }

    }

    /**

     * @return string The algo

     */

    public function getAlgo()

    {

        return $this->_algo;

    }

    /**

     * @param string $value

     * @return Zend_Gdata_Media_Extension_MediaHash Provides a fluent interface

     */

    public function setAlgo($value)

    {

        $this->_algo = $value;

        return $this;

    }

}