implementing pagination api on search, and creating a "preview" of results

The search controller return a subset of the 5 first results. If the user want to
see more, the services implementing SearchInterface should add a link "see more",
and make use of the Pagination API to paginate.

Controller/SearchController.php

@@ -27,6 +27,7 @@ use Symfony\Component\HttpFoundation\Request;
 use Chill\MainBundle\Search\UnknowSearchDomainException;
 use Chill\MainBundle\Search\UnknowSearchNameException;
 use Chill\MainBundle\Search\ParsingException;
+use Chill\MainBundle\Search\SearchInterface;
 
 /**
  *
@@ -55,11 +56,29 @@ class SearchController extends Controller
         
         try {
             if ($name === NULL) {
+                // no specific search selected. Rendering result in "preview" mode
                 $results = $this->get('chill.main.search_provider')
-                  ->getSearchResults($request->query->get('q'));
+                  ->getSearchResults(
+                        $pattern, 
+                        0, 
+                        5, 
+                        array(SearchInterface::SEARCH_PREVIEW => true)
+                        );
             } else {
+                // we want search on a specific search provider. Display full results.
+                
+                // create a paginator to get the startPage and stopPage
+                /* @var $paginatorFactory \Chill\MainBundle\Pagination\PaginatorFactory */
+                $paginatorFactory = $this->get('chill_main.paginator_factory');
+                
                 $results = [$this->get('chill.main.search_provider')
-                      ->getResultByName($pattern, $name)];
+                      ->getResultByName(
+                            $pattern, 
+                            $name, 
+                            $paginatorFactory->getCurrentPageFirstItemNumber(), 
+                            $paginatorFactory->getCurrentItemPerPage(),
+                            array(SearchInterface::SEARCH_PREVIEW => false)
+                            )];
             }
         } catch (UnknowSearchDomainException $ex) {
             return $this->render('ChillMainBundle:Search:error.html.twig',