<?php
/**
 * OpenMage
 *
 * 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 at https://opensource.org/license/osl-3-0-php
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @copyright  Copyright (c) 2006-2020 Magento, Inc. (https://www.magento.com)
 * @copyright  Copyright (c) 2022-2023 The OpenMage Contributors (https://www.openmage.org)
 * @license    https://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml order items grid
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 */
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());
        return parent::_beforeToHtml();
    }

    /**
     * Retrieve order items collection
     *
     * @return Mage_Sales_Model_Order_Item[]|Mage_Sales_Model_Resource_Order_Item_Collection
     */
    public function getItemsCollection()
    {
        return $this->getOrder()->getItemsCollection();
    }
}
