<?php

use Qs\Form\Decorator\DecorationTrait;

class Qs_Form_Decorator_ViewHelper extends Zend_Form_Decorator_ViewHelper
{
    use DecorationTrait;

    public function render($content)
    {
        /** @var $element Zend_Form_Element_Multi */
        $element = $this->getElement();
        $this->_initAppendPrepend();
        $view = $element->getView();
        if (null === $view) {
            throw new Zend_Form_Decorator_Exception('ViewHelper decorator cannot render without a registered view object');
        }

        if (method_exists($element, 'getMultiOptions')) {
            $element->getMultiOptions();
        }

        $helper = $this->getHelper();
        $separator = $this->getSeparator();
        $value = $this->getValue($element);
        $attribs = $this->getElementAttribs();
        $name = $element->getFullyQualifiedName();
        $id = $element->getId();
        $attribs['id'] = $id;

        $elementContent = $view->$helper($name, $value, $attribs, $element->options);
        switch ($this->getPlacement()) {
            case self::APPEND:
                return $content . $separator
                    . $this->getHtmlBeforeElement()
                    . $elementContent
                    . $this->getHtmlAfterElement();
            case self::PREPEND:
                return $this->getHtmlBeforeElement()
                    . $elementContent
                    . $this->getHtmlAfterElement()
                    . $separator . $content;
            default:
                return $this->getHtmlBeforeElement()
                    . $elementContent
                    . $this->getHtmlAfterElement();
        }
    }


}