<?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) 2012 Magento Inc. (http://www.magentocommerce.com)
 * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
 */

/**
 * Adminhtml dashboard tab abstract
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */

abstract class Mage_Adminhtml_Block_Dashboard_Abstract extends Mage_Adminhtml_Block_Widget
{
    protected $_dataHelperName = null;

    public function __construct($attributes=array())
    {
        parent::__construct($attributes);
    }

    public function getCollection()
    {
           return $this->getDataHelper()->getCollection();
    }

    public function getCount()
    {
           return $this->getDataHelper()->getCount();
    }

    public function getDataHelper()
    {
           return $this->helper($this->getDataHelperName());
    }

    public  function getDataHelperName()
    {
           return $this->_dataHelperName;
    }

    public  function setDataHelperName($dataHelperName)
    {
           $this->_dataHelperName = $dataHelperName;
           return $this;
    }

    protected function _prepareData()
    {
        return $this;
    }

    protected function _prepareLayout()
    {
        $this->_prepareData();
        return parent::_prepareLayout();
    }
}