<?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@magentocommerce.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.magentocommerce.com for more information.
 *
 * @category    Mage
 * @package     Mage_Adminhtml
 * @copyright   Copyright (c) 2010 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml abstract block
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Template extends Mage_Core_Block_Template
{
    /**
     * Enter description here...
     *
     * @return string
     */
    protected function _getUrlModelClass()
    {
        return 'adminhtml/url';
    }

    /**
     * Retrieve Session Form Key
     *
     * @return string
     */
    public function getFormKey()
    {
        return Mage::getSingleton('core/session')->getFormKey();
    }

    /**
     * Check whether or not the module output is enabled
     *
     * Because many module blocks belong to Adminhtml module,
     * the feature "Disable module output" doesn't cover Admin area
     *
     * @param string $moduleName Full module name
     * @return boolean
     */
    public function isOutputEnabled($moduleName = null)
    {
        if ($moduleName === null) {
            $moduleName = $this->getModuleName();
        }
        return !Mage::getStoreConfigFlag('advanced/modules_disable_output/' . $moduleName);
    }

    /**
     * Prepare html output
     *
     * @return string
     */
    protected function _toHtml()
    {
        Mage::dispatchEvent('adminhtml_block_html_before', array('block' => $this));
        return parent::_toHtml();
    }
}
