1: <?php
 2: /**
 3:  * Magento
 4:  *
 5:  * NOTICE OF LICENSE
 6:  *
 7:  * This source file is subject to the Open Software License (OSL 3.0)
 8:  * that is bundled with this package in the file LICENSE.txt.
 9:  * It is also available through the world-wide-web at this URL:
10:  * http://opensource.org/licenses/osl-3.0.php
11:  * If you did not receive a copy of the license and are unable to
12:  * obtain it through the world-wide-web, please send an email
13:  * to license@magentocommerce.com so we can send you a copy immediately.
14:  *
15:  * DISCLAIMER
16:  *
17:  * Do not edit or add to this file if you wish to upgrade Magento to newer
18:  * versions in the future. If you wish to customize Magento for your
19:  * needs please refer to http://www.magentocommerce.com for more information.
20:  *
21:  * @category    Mage
22:  * @package     Mage_Widget
23:  * @copyright   Copyright (c) 2012 Magento Inc. (http://www.magentocommerce.com)
24:  * @license     http://opensource.org/licenses/osl-3.0.php  Open Software License (OSL 3.0)
25:  */
26: 
27: /**
28:  * Template Filter Model
29:  *
30:  * @category    Mage
31:  * @package     Mage_Widget
32:  * @author      Magento Core Team <core@magentocommerce.com>
33:  */
34: class Mage_Widget_Model_Template_Filter extends Mage_Cms_Model_Template_Filter
35: {
36:     /**
37:      * Generate widget
38:      *
39:      * @param array $construction
40:      * @return string
41:      */
42:     public function widgetDirective($construction)
43:     {
44:         $params = $this->_getIncludeParameters($construction[2]);
45: 
46:         // Determine what name block should have in layout
47:         $name = null;
48:         if (isset($params['name'])) {
49:             $name = $params['name'];
50:         }
51: 
52:         // validate required parameter type or id
53:         if (!empty($params['type'])) {
54:             $type = $params['type'];
55:         } elseif (!empty($params['id'])) {
56:             $preconfigured = Mage::getResourceSingleton('widget/widget')
57:                 ->loadPreconfiguredWidget($params['id']);
58:             $type = $preconfigured['widget_type'];
59:             $params = $preconfigured['parameters'];
60:         } else {
61:             return '';
62:         }
63:         
64:         // we have no other way to avoid fatal errors for type like 'cms/widget__link', '_cms/widget_link' etc. 
65:         $xml = Mage::getSingleton('widget/widget')->getXmlElementByType($type);
66:         if ($xml === null) {
67:             return '';
68:         }
69:         
70:         // define widget block and check the type is instance of Widget Interface
71:         $widget = Mage::app()->getLayout()->createBlock($type, $name, $params);
72:         if (!$widget instanceof Mage_Widget_Block_Interface) {
73:             return '';
74:         }
75: 
76:         return $widget->toHtml();
77:     }
78: }
79: