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_Core
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: /**
29:  * HTML anchor element block
30:  *
31:  * @category   Mage
32:  * @package    Mage_Core
33:  * @author      Magento Core Team <core@magentocommerce.com>
34:  */
35: class Mage_Core_Block_Html_Link extends Mage_Core_Block_Template
36: {
37: 
38:     /**
39:      * Internal constructor
40:      *
41:      */
42:     protected function _construct()
43:     {
44:         $this->setTemplate('core/link.phtml');
45:         parent::_construct();
46:     }
47:     /**
48:      * Prepare link attributes as serialized and formated string
49:      *
50:      * @return string
51:      */
52:     public function getLinkAttributes()
53:     {
54:         $allow = array(
55:             'href', 'title', 'charset', 'name', 'hreflang', 'rel', 'rev', 'accesskey', 'shape',
56:             'coords', 'tabindex', 'onfocus', 'onblur', // %attrs
57:             'id', 'class', 'style', // %coreattrs
58:             'lang', 'dir', // %i18n
59:             'onclick', 'ondblclick', 'onmousedown', 'onmouseup', 'onmouseover', 'onmousemove',
60:             'onmouseout', 'onkeypress', 'onkeydown', 'onkeyup' // %events
61:         );
62: 
63:         $attributes = array();
64:         foreach ($allow as $attribute) {
65:             $value = $this->getDataUsingMethod($attribute);
66:             if (!is_null($value)) {
67:                 $attributes[$attribute] = $this->htmlEscape($value);
68:             }
69:         }
70: 
71:         if (!empty($attributes)) {
72:             return $this->serialize($attributes);
73:         }
74:         return '';
75:     }
76: 
77:     /**
78:      * serialize attributes
79:      *
80:      * @param   array $attributes
81:      * @param   string $valueSeparator
82:      * @param   string $fieldSeparator
83:      * @param   string $quote
84:      * @return  string
85:      */
86:     public function serialize($attributes = array(), $valueSeparator='=', $fieldSeparator=' ', $quote='"')
87:     {
88:         $res  = '';
89:         $data = array();
90: 
91:         foreach ($attributes as $key => $value) {
92:             $data[] = $key . $valueSeparator . $quote . $value . $quote;
93:         }
94:         $res = implode($fieldSeparator, $data);
95:         return $res;
96:     }
97: }
98: