Максим Максимов

namespace Application\View\Helper;

use Zend\View\Helper\AbstractHelper;
use Zend\Form\View\Helper\FormTextarea;
use Zend\Form\ElementInterface;

use HTMLPurifier;
use HTMLPurifier_Config;
use HTMLPurifier_ConfigSchema;
use Soflomo\Purifier\View\Helper\Purifier;

use Zend\ServiceManager\ServiceLocatorAwareInterface;
use Zend\ServiceManager\ServiceLocatorAwareTrait;
use Zend\ServiceManager\ServiceLocatorInterface;
use Zend\ServiceManager\AbstractPluginManager;

class PurefierFormTextarea extends FormTextarea implements ServiceLocatorAwareInterface
{
    protected $serviceLocator = null;

    public function setServiceLocator(ServiceLocatorInterface $serviceLocator)
    {
        $this->serviceLocator = $serviceLocator;
        return $this;
    }

    public function getServiceLocator()
    {
        return $this->serviceLocator;
    }

    public function getMainServiceLocator()
    {
        if ($this->serviceLocator instanceof AbstractPluginManager) {
            return $this->serviceLocator->getServiceLocator();
        }
        return $this->serviceLocator;
    }

    public function render(ElementInterface $element)
    {
        // ...

        $this->getMainServiceLocator()->get('HTMLPurifier'); 

        // ...
    }
}