<?php
/**
 * Magento
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://opensource.org/licenses/osl-3.0.php
 * 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@magento.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade Magento to newer
 * versions in the future. If you wish to customize Magento for your
 * needs please refer to http://www.magento.com for more information.
 *
 * @category    Mage
 * @package     Mage_Adminhtml
 * @copyright  Copyright (c) 2006-2016 X.commerce, Inc. and affiliates (http://www.magento.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml order items grid
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Sales_Order_View_Items extends Mage_Adminhtml_Block_Sales_Items_Abstract
{
    /**
     * Retrieve required options from parent
     */
    protected function _beforeToHtml()
    {
        if (!$this->getParentBlock()) {
            Mage::throwException(Mage::helper('adminhtml')->__('Invalid parent block for this block'));
        }
        $this->setOrder($this->getParentBlock()->getOrder());
        parent::_beforeToHtml();
    }

    /**
     * Retrieve order items collection
     *
     * @return unknown
     */
    public function getItemsCollection()
    {
        return $this->getOrder()->getItemsCollection();
    }
}