public function ajaxCall()
    {
        global $smarty, $cookie;

        $selected_filters = $this->getSelectedFilters();
        $filter_block = $this->getFilterBlock($selected_filters);
        $this->getProducts($selected_filters, $products, $nb_products, $p, $n, $pages_nb, $start, $stop, $range);

        // Add pagination variable
        $nArray = (int)Configuration::get('PS_PRODUCTS_PER_PAGE') != 10 ? array((int)Configuration::get('PS_PRODUCTS_PER_PAGE'), 10, 20, 50) : array(10, 20, 50);
        // Clean duplicate values
        $nArray = array_unique($nArray);
        asort($nArray);

        Hook::exec(
            'actionProductListModifier',
            array(
                'nb_products' => &$nb_products,
                'cat_products' => &$products,
            )
        );

        if (version_compare(_PS_VERSION_, '1.6.0', '>=') === true)
            $this->context->controller->addColorsToProductList($products);

        $category = new Category(Tools::getValue('id_category_layered', Configuration::get('PS_HOME_CATEGORY')), (int)$cookie->id_lang);

        // Generate meta title and meta description
        $category_title = (empty($category->meta_title) ? $category->name : $category->meta_title);
        $category_metas = Meta::getMetaTags((int)$cookie->id_lang, 'category');
        $title = '';
        $keywords = '';

        if (is_array($filter_block['title_values']))
            foreach ($filter_block['title_values'] as $key => $val)
            {
                $title .= ' > '.$key.': '.implode('/', $val);
                $keywords .= $key.' '.implode('/', $val).', ';
            }

        $good_title = $category->name.$title;
        $title = $category_title.$title;
        

        if (!empty($title))
            $meta_title = $title;
        else
            $meta_title = $category_metas['meta_title'];

        $meta_description = $category_metas['meta_description'];

        $keywords = Tools::substr(Tools::strtolower($keywords), 0, 1000);
        if (!empty($keywords))
            $meta_keywords = rtrim($category_title.', '.$keywords.', '.$category_metas['meta_keywords'], ', ');

        $smarty->assign(
            array(
                'homeSize' => Image::getSize(ImageType::getFormatedName('home')),
                'nb_products' => $nb_products,
                'category' => $category,
                'pages_nb' => (int)$pages_nb,
                'p' => (int)$p,
                'n' => (int)$n,
                'range' => (int)$range,
                'start' => (int)$start,
                'stop' => (int)$stop,
                'n_array' => ((int)Configuration::get('PS_PRODUCTS_PER_PAGE') != 10) ? array((int)Configuration::get('PS_PRODUCTS_PER_PAGE'), 10, 20, 50) : array(10, 20, 50),
                'comparator_max_item' => (int)(Configuration::get('PS_COMPARATOR_MAX_ITEM')),
                'products' => $products,
                'products_per_page' => (int)Configuration::get('PS_PRODUCTS_PER_PAGE'),
                'static_token' => Tools::getToken(false),
                'page_name' => 'category',
                'nArray' => $nArray,
                'compareProducts' => CompareProduct::getCompareProducts((int)$this->context->cookie->id_compare)
            )
        );

        // Prevent bug with old template where category.tpl contain the title of the category and category-count.tpl do not exists
        if (file_exists(_PS_THEME_DIR_.'category-count.tpl'))
            $category_count = $smarty->fetch(_PS_THEME_DIR_.'category-count.tpl');
        else
            $category_count = '';

        if ($nb_products == 0)
            $product_list = $this->display(__FILE__, 'blocklayered-no-products.tpl');
        else
            $product_list = $smarty->fetch(_PS_THEME_DIR_.'product-list.tpl');

        $vars = array(
            'filtersBlock' => utf8_encode($this->generateFiltersBlock($selected_filters)),
            'productList' => utf8_encode($product_list),
            'pagination' => $smarty->fetch(_PS_THEME_DIR_.'pagination.tpl'),
            'categoryCount' => $category_count,
            'meta_title' => $meta_title.' - '.Configuration::get('PS_SHOP_NAME'),
            'heading' => $good_title,
            'meta_keywords' => isset($meta_keywords) ? $meta_keywords : null,
            'meta_description' => $meta_description,
            'current_friendly_url' => ((int)$n == (int)$nb_products) ? '#/show-all': '#'.$filter_block['current_friendly_url'],
            'filters' => $filter_block['filters'],
            'nbRenderedProducts' => (int)$nb_products,
            'nbAskedProducts' => (int)$n
        );

        if (version_compare(_PS_VERSION_, '1.6.0', '>=') === true)
            $vars = array_merge($vars, array('pagination_bottom' => $smarty->assign('paginationId', 'bottom')
                ->fetch(_PS_THEME_DIR_.'pagination.tpl')));
        /* We are sending an array in jSon to the .js controller, it will update both the filters and the products zones */
        return Tools::jsonEncode($vars);
    }

<?php
if (!defined('_PS_VERSION_'))
   exit;

class BlockLayeredOverride extends BlockLayered
{

   public function ajaxCall()
   {
      global $smarty, $cookie;

      $category = new Category(Tools::getValue('id_category_layered', Configuration::get('PS_HOME_CATEGORY')), (int)$cookie->id_lang);
      $category_title = (empty($category->meta_title[$id_lang]) ? $category->name[$id_lang] : $category->meta_title[$id_lang]);
      
      $selected_filters = parent::ajaxCall();
      $vars = json_decode($selected_filters,  true);
      
      $tmp1 = $this->context->smarty->template_objects;
      $tmp = array_shift($tmp1);
      $tmp = $tmp->smarty->template_objects;
      $tmp = array_shift($tmp);
      $tmp = $tmp = $tmp->smarty->tpl_vars;
      $tmp = $tmp['title_values'];
      $title_values = $tmp->value;
      
      
      unset($tmp1);
      unset($tmp);
      $title = '';

      if (is_array($title_values))
         foreach ($title_values as $key => $val)
         {
            $title .= ' > '.$key.' '.implode('/', $val);
         }      
      
      $good_title = $category->name.$title;

      $vars['heading'] = $good_title;
      
      return Tools::jsonEncode($vars);
      
   }


}