<?php

class Qs_View_Helper_PageAlias extends Zend_View_Helper_FormElement
{
    protected function _initScripts($params)
    {
        /** @var $doc Qs_Doc */
        $doc = Zend_Registry::get('doc');
        if (!empty($params['sourceField'])) {
            $doc->addScript('js/lib/form-element-pageAlias.js');
            $doc->addInitObject('ElementPageAlias', [$params['id'], $params['sourceField']]);
        }
        return $this;
    }

    public function pageAlias($name, $value = null, $attribs = null)
    {
        $this->_initScripts($attribs);
        if (isset($attribs['sourceField'])) {
            unset($attribs['sourceField']);
        }
        return $this->view->formText($name, $value, $attribs);
    }
}