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_Tag
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:  * All tags block
29:  *
30:  * @category   Mage
31:  * @package    Mage_Tag
32:  * @author      Magento Core Team <core@magentocommerce.com>
33:  */
34: 
35: class Mage_Tag_Block_All extends Mage_Core_Block_Template
36: {
37: 
38:     protected $_tags;
39:     protected $_minPopularity;
40:     protected $_maxPopularity;
41: 
42:     protected function _loadTags()
43:     {
44:         if (empty($this->_tags)) {
45:             $this->_tags = array();
46:             $tags = Mage::getModel('tag/tag')->getPopularCollection()
47:                 ->joinFields(Mage::app()->getStore()->getId())
48:                 ->limit(100)
49:                 ->load()
50:                 ->getItems();
51: 
52:             if( count($tags) == 0 ) {
53:                 return $this;
54:             }
55: 
56:             $this->_maxPopularity = reset($tags)->getPopularity();
57:             $this->_minPopularity = end($tags)->getPopularity();
58:             $range = $this->_maxPopularity - $this->_minPopularity;
59:             $range = ( $range == 0 ) ? 1 : $range;
60:             foreach ($tags as $tag) {
61:                 $tag->setRatio(($tag->getPopularity()-$this->_minPopularity)/$range);
62:                 $this->_tags[$tag->getName()] = $tag;
63:             }
64:             ksort($this->_tags);
65:         }
66:         return $this;
67:     }
68: 
69:     public function getTags()
70:     {
71:         $this->_loadTags();
72:         return $this->_tags;
73:     }
74: 
75:     public function getMaxPopularity()
76:     {
77:         return $this->_maxPopularity;
78:     }
79: 
80:     public function getMinPopularity()
81:     {
82:         return $this->_minPopularity;
83:     }
84: 
85:     protected function _getHeadText()
86:     {
87:         return Mage::helper('tag')->__('All Tags');
88:     }
89: }
90: