<?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\Mvc\View\Http;
use Zend\EventManager\AbstractListenerAggregate;
use Zend\EventManager\EventManagerInterface as Events;
use Zend\Mvc\MvcEvent;
use Zend\Stdlib\ArrayUtils;
use Zend\View\Model\ViewModel;
class CreateViewModelListener extends AbstractListenerAggregate
{
/**
* {@inheritDoc}
*/
public function attach(Events $events)
{
$this->listeners[] = $events->attach(MvcEvent::EVENT_DISPATCH, array($this, 'createViewModelFromArray'), -80);
$this->listeners[] = $events->attach(MvcEvent::EVENT_DISPATCH, array($this, 'createViewModelFromNull'), -80);
}
/**
* Inspect the result, and cast it to a ViewModel if an assoc array is detected
*
* @param MvcEvent $e
* @return void
*/
public function createViewModelFromArray(MvcEvent $e)
{
$result = $e->getResult();
if (!ArrayUtils::hasStringKeys($result, true)) {
return;
}
$model = new ViewModel($result);
$e->setResult($model);
}
/**
* Inspect the result, and cast it to a ViewModel if null is detected
*
* @param MvcEvent $e
* @return void
*/
public function createViewModelFromNull(MvcEvent $e)
{
$result = $e->getResult();
if (null !== $result) {
return;
}
$model = new ViewModel;
$e->setResult($model);
}
}