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_XmlConnect
 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:  * Product search results renderer
 29:  *
 30:  * @category    Mage
 31:  * @package     Mage_XmlConnect
 32:  * @author      Magento Core Team <core@magentocommerce.com>
 33:  */
 34: class Mage_XmlConnect_Block_Catalog_Search extends Mage_XmlConnect_Block_Catalog
 35: {
 36:     /**
 37:      * Search results xml renderer
 38:      * XML also contains filters that can be apply (accorfingly already applyed filters
 39:      * and search query) and sort fields
 40:      *
 41:      * @return string
 42:      */
 43:     protected function _toHtml()
 44:     {
 45:         $searchXmlObject  = Mage::getModel('xmlconnect/simplexml_element', '<search></search>');
 46:         $filtersXmlObject = Mage::getModel('xmlconnect/simplexml_element', '<filters></filters>');
 47: 
 48:         $helper = Mage::helper('catalogsearch');
 49:         if (method_exists($helper, 'getEngine')) {
 50:             $engine = Mage::helper('catalogsearch')->getEngine();
 51:             if ($engine instanceof Varien_Object) {
 52:                 $isLayeredNavigationAllowed = $engine->isLeyeredNavigationAllowed();
 53:             } else {
 54:                 $isLayeredNavigationAllowed = true;
 55:             }
 56:         } else {
 57:             $isLayeredNavigationAllowed = true;
 58:         }
 59: 
 60:         $hasMoreProductItems = 0;
 61: 
 62:         /**
 63:          * Products
 64:          */
 65:         $productListBlock = $this->getChild('product_list');
 66:         if ($productListBlock) {
 67:             $layer = Mage::getSingleton('catalogsearch/layer');
 68:             $productsXmlObj = $productListBlock->setLayer($layer)
 69:                 ->setNeedBlockApplyingFilters(!$isLayeredNavigationAllowed)->getProductsXmlObject();
 70:             $searchXmlObject->appendChild($productsXmlObj);
 71:             $hasMoreProductItems = (int)$productListBlock->getHasProductItems();
 72:         }
 73: 
 74:         $searchXmlObject->addAttribute('has_more_items', $hasMoreProductItems);
 75: 
 76:         /**
 77:          * Filters
 78:          */
 79:         $showFiltersAndOrders = (bool) count($productsXmlObj);
 80:         $requestParams = $this->getRequest()->getParams();
 81:         foreach ($requestParams as $key => $value) {
 82:             if (0 === strpos($key, parent::REQUEST_SORT_ORDER_PARAM_REFIX)
 83:                 || 0 === strpos($key, parent::REQUEST_FILTER_PARAM_REFIX)
 84:             ) {
 85:                 $showFiltersAndOrders = false;
 86:                 break;
 87:             }
 88:         }
 89:         if ($isLayeredNavigationAllowed && $productListBlock && $showFiltersAndOrders) {
 90:             $filters = $productListBlock->getCollectedFilters();
 91:             /**
 92:              * Render filters xml
 93:              */
 94:             foreach ($filters as $filter) {
 95:                 if (!$this->_isFilterItemsHasValues($filter)) {
 96:                     continue;
 97:                 }
 98:                 $item = $filtersXmlObject->addChild('item');
 99:                 $item->addChild('name', $searchXmlObject->escapeXml($filter->getName()));
100:                 $item->addChild('code', $filter->getRequestVar());
101:                 $values = $item->addChild('values');
102: 
103:                 foreach ($filter->getItems() as $valueItem) {
104:                     $count = (int)$valueItem->getCount();
105:                     if (!$count) {
106:                         continue;
107:                     }
108:                     $value = $values->addChild('value');
109:                     $value->addChild('id', $valueItem->getValueString());
110:                     $value->addChild('label', $searchXmlObject->escapeXml($valueItem->getLabel()));
111:                     $value->addChild('count', $count);
112:                 }
113:             }
114:             $searchXmlObject->appendChild($filtersXmlObject);
115:         }
116: 
117:         /**
118:          * Sort fields
119:          */
120:         if ($showFiltersAndOrders) {
121:             $searchXmlObject->appendChild($this->getProductSortFeildsXmlObject());
122:         }
123: 
124:         return $searchXmlObject->asNiceXml();
125:     }
126: 
127:     /**
128:      * Check if items of specified filter have values
129:      *
130:      * @param object $filter filter model
131:      * @return bool
132:      */
133:     protected function _isFilterItemsHasValues($filter)
134:     {
135:         if (!$filter->getItemsCount()) {
136:             return false;
137:         }
138:         foreach ($filter->getItems() as $valueItem) {
139:             if ((int)$valueItem->getCount()) {
140:                 return true;
141:             }
142:         }
143:         return false;
144:     }
145: }
146: