<?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)
 */

/**
 * New attribute panel on product edit page
 *
 * @category   Mage
 * @package    Mage_Adminhtml
 * @author      Magento Core Team <core@magentocommerce.com>
 */
class Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Attributes_Create extends Mage_Adminhtml_Block_Widget_Button
{
    /**
     * Config of create new attribute
     *
     * @var Varien_Object
     */
    protected $_config = null;

    /**
     * Retrive config of new attribute creation
     *
     * @return Varien_Object
     */
    public function getConfig()
    {
        if (is_null($this->_config)) {
           $this->_config = new Varien_Object();
        }

        return $this->_config;
    }

    protected function _beforeToHtml()
    {
        $this->setId('create_attribute_' . $this->getConfig()->getGroupId())
            ->setOnClick($this->getJsObjectName() . '.create();')
            ->setType('button')
            ->setClass('add')
            ->setLabel(Mage::helper('adminhtml')->__('Create New Attribute'));

        $this->getConfig()
            ->setUrl($this->getUrl(
                '*/catalog_product_attribute/new',
                array(
                    'group'     => $this->getConfig()->getGroupId(),
                    'tab'       => $this->getConfig()->getTabId(),
                    'store'     => $this->getConfig()->getStoreId(),
                    'product'   => $this->getConfig()->getProductId(),
                    'set'       => $this->getConfig()->getAttributeSetId(),
                    'type'      => $this->getConfig()->getTypeId(),
                    'popup'     => 1
                )
            ));

        return parent::_beforeToHtml();
    }

    protected function _toHtml()
    {
        $this->setCanShow(true);
        Mage::dispatchEvent('adminhtml_catalog_product_edit_tab_attributes_create_html_before', array('block' => $this));
        if (!$this->getCanShow()) {
            return '';
        }

        $html = parent::_toHtml();
        $html .= Mage::helper('adminhtml/js')->getScript(
            "var {$this->getJsObjectName()} = new Product.Attributes('{$this->getId()}');\n"
            . "{$this->getJsObjectName()}.setConfig(" . Mage::helper('core')->jsonEncode($this->getConfig()->getData()) . ");\n"
        );

        return $html;
    }

    public function getJsObjectName()
    {
        return $this->getId() . 'JsObject';
    }
} // Class Mage_Adminhtml_Block_Catalog_Product_Edit_Tab_Attributes_Create End
