Source of file JsonStrategy.php
Size: 3,552 Bytes - Last Modified: 2014-03-12T23:21:18+01:00
/home/theseer/Downloads/ZendFramework-2.3.0/library/Zend/View/Strategy/JsonStrategy.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142 | <?php /** * Zend Framework (http://framework.zend.com/) * * @link http://github.com/zendframework/zf2 for the canonical source repository * @copyright Copyright (c) 2005-2014 Zend Technologies USA Inc. (http://www.zend.com) * @license http://framework.zend.com/license/new-bsd New BSD License */ namespace Zend\View\Strategy; use Zend\EventManager\AbstractListenerAggregate; use Zend\EventManager\EventManagerInterface; use Zend\View\Model; use Zend\View\Renderer\JsonRenderer; use Zend\View\ViewEvent; class JsonStrategy extends AbstractListenerAggregate { /** * Character set for associated content-type * * @var string */ protected $charset = 'utf-8'; /** * Multibyte character sets that will trigger a binary content-transfer-encoding * * @var array */ protected $multibyteCharsets = array( 'UTF-16', 'UTF-32', ); /** * @var JsonRenderer */ protected $renderer; /** * Constructor * * @param JsonRenderer $renderer */ public function __construct(JsonRenderer $renderer) { $this->renderer = $renderer; } /** * {@inheritDoc} */ public function attach(EventManagerInterface $events, $priority = 1) { $this->listeners[] = $events->attach(ViewEvent::EVENT_RENDERER, array($this, 'selectRenderer'), $priority); $this->listeners[] = $events->attach(ViewEvent::EVENT_RESPONSE, array($this, 'injectResponse'), $priority); } /** * Set the content-type character set * * @param string $charset * @return JsonStrategy */ public function setCharset($charset) { $this->charset = (string) $charset; return $this; } /** * Retrieve the current character set * * @return string */ public function getCharset() { return $this->charset; } /** * Detect if we should use the JsonRenderer based on model type and/or * Accept header * * @param ViewEvent $e * @return null|JsonRenderer */ public function selectRenderer(ViewEvent $e) { $model = $e->getModel(); if (!$model instanceof Model\JsonModel) { // no JsonModel; do nothing return; } // JsonModel found return $this->renderer; } /** * Inject the response with the JSON payload and appropriate Content-Type header * * @param ViewEvent $e * @return void */ public function injectResponse(ViewEvent $e) { $renderer = $e->getRenderer(); if ($renderer !== $this->renderer) { // Discovered renderer is not ours; do nothing return; } $result = $e->getResult(); if (!is_string($result)) { // We don't have a string, and thus, no JSON return; } // Populate response $response = $e->getResponse(); $response->setContent($result); $headers = $response->getHeaders(); if ($this->renderer->hasJsonpCallback()) { $contentType = 'application/javascript'; } else { $contentType = 'application/json'; } $contentType .= '; charset=' . $this->charset; $headers->addHeaderLine('content-type', $contentType); if (in_array(strtoupper($this->charset), $this->multibyteCharsets)) { $headers->addHeaderLine('content-transfer-encoding', 'BINARY'); } } } |