<?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_CatalogInventory
 * @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)
 */

/**
 * Product stock qty default block
 *
 * @category   Mage
 * @package    Mage_CatalogInventory
 */
class Mage_CatalogInventory_Block_Stockqty_Default extends Mage_CatalogInventory_Block_Stockqty_Abstract
{
    /**
     * Render block HTML
     *
     * @return string
     */
    protected function _toHtml()
    {
        if (!$this->isMsgVisible()) {
            return '';
        }
        return parent::_toHtml();
    }

    /**
     * Retrieve block cache tags
     *
     * @return array
     */
    public function getCacheTags()
    {
        return array_merge(parent::getCacheTags(), $this->_getProduct()->getCacheIdTags());
    }
}
