<?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_Page
 * @copyright  Copyright (c) 2006-2015 X.commerce, Inc. (http://www.magento.com)
 * @license    http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Html page block
 *
 * @category   Mage
 * @package    Mage_Page
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Page_Block_Html_Welcome extends Mage_Core_Block_Template
{
    /**
     * Get customer session
     *
     * @return Mage_Customer_Model_Session
     */
    protected function _getSession()
    {
        return Mage::getSingleton('customer/session');
    }

    /**
     * Get block message
     *
     * @return string
     */
    protected function _toHtml()
    {
        if (empty($this->_data['welcome'])) {
            if (Mage::isInstalled() && $this->_getSession()->isLoggedIn()) {
                $this->_data['welcome'] = $this->__('Welcome, %s!', $this->escapeHtml($this->_getSession()->getCustomer()->getName()));
            } else {
                $this->_data['welcome'] = Mage::getStoreConfig('design/header/welcome');
            }
        }

        return $this->_data['welcome'];
    }

    /**
     * Get tags array for saving cache
     *
     * @return array
     */
    public function getCacheTags()
    {
        if ($this->_getSession()->isLoggedIn()) {
            $this->addModelTags($this->_getSession()->getCustomer());
        }

        return parent::getCacheTags();
    }
}
