1: <?php
 2: 
 3: namespace Charcoal\View;
 4: 
 5: // PSR-7 (http-messaging) dependencies
 6: use Psr\Http\Message\ResponseInterface;
 7: 
 8: // Local namespace dependencies
 9: use \Charcoal\View\ViewInterface;
10: 
11: /**
12:  * Provides a PSR-7 renderer that uses a Charcoal View.
13:  *
14:  * A "PSR-7" renderer is a service that renders a template identifier inside a HTTP Response
15:  *
16:  * ## Dependencies
17:  * - `view` A "Charcoal View", which is any class that implements `\Charcoal\View\ViewInterface`.
18:  */
19: class Renderer
20: {
21:     /**
22:      * @var ViewInterface
23:      */
24:     private $view;
25: 
26:     /**
27:      * @param array $data The constructor dependencies.
28:      */
29:     public function __construct(array $data)
30:     {
31:         $this->setView($data['view']);
32:     }
33: 
34:     /**
35:      * @param ViewInterface $view The view instance to use.
36:      * @return Renderer Chainable
37:      */
38:     private function setView(ViewInterface $view)
39:     {
40:         $this->view = $view;
41:         return $this;
42:     }
43: 
44:     /**
45:      * @param ResponseInterface $response      The HTTP response.
46:      * @param string            $templateIdent The template identifier to load and render.
47:      * @param mixed             $context       The view controller / context.
48:      * @return ResponseInterface
49:      */
50:     public function render(ResponseInterface $response, $templateIdent, $context = null)
51:     {
52:         $rendered = $this->view->renderTemplate($templateIdent, $context);
53:         $response->getBody()->write($rendered);
54:         return $response;
55:     }
56: }
57: