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 <?php
 /**
  * Zend Framework
  *
  * LICENSE
  *
  * This source file is subject to the new BSD license that is bundled
  * with this package in the file LICENSE.txt.
  * It is also available through the world-wide-web at this URL:
  * http://framework.zend.com/license/new-bsd
  * If you did not receive a copy of the license and are unable to
  * obtain it through the world-wide-web, please send an email
  * to license@zend.com so we can send you a copy immediately.
  *
  * @category   Zend
  * @package    Zend_Form
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
 /** Zend_Form_Decorator_Abstract */
 // require_once 'Zend/Form/Decorator/Abstract.php';
 
 /**
  * Zend_Dojo_Form_Decorator_DijitContainer
  *
  * Render a dojo dijit layout container via a view helper
  *
  * Accepts the following options:
  * - helper:    the name of the view helper to use
  *
  * Assumes the view helper accepts four parameters, the id, content, dijit
  * parameters, and (X)HTML attributes; these will be provided by the element.
  *
  * @uses       Zend_Form_Decorator_Abstract
  * @package    Zend_Dojo
  * @subpackage Form_Decorator
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  * @version    $Id$
  */
 abstract class Zend_Dojo_Form_Decorator_DijitContainer extends Zend_Form_Decorator_Abstract
 {
     /**
      * View helper
      * @var string
      */
     protected $_helper;
 
     /**
      * Element attributes
      * @var array
      */
     protected $_attribs;
 
     /**
      * Dijit option parameters
      * @var array
      */
     protected $_dijitParams;
 
     /**
      * Container title
      * @var string
      */
     protected $_title;
 
     /**
      * Get view helper for rendering container
      *
      * @return string
      */
     public function getHelper()
     {
         if (null === $this->_helper) {
             // require_once 'Zend/Form/Decorator/Exception.php';
             throw new Zend_Form_Decorator_Exception('No view helper specified fo DijitContainer decorator');
         }
         return $this->_helper;
     }
 
     /**
      * Get element attributes
      *
      * @return array
      */
     public function getAttribs()
     {
         if (null === $this->_attribs) {
             $attribs = $this->getElement()->getAttribs();
             if (array_key_exists('dijitParams', $attribs)) {
                 unset($attribs['dijitParams']);
             }
             $this->_attribs = $attribs;
         }
         return $this->_attribs;
     }
 
     /**
      * Get dijit option parameters
      *
      * @return array
      */
     public function getDijitParams()
     {
         if (null === $this->_dijitParams) {
             $attribs = $this->getElement()->getAttribs();
             if (array_key_exists('dijitParams', $attribs)) {
                 $this->_dijitParams = $attribs['dijitParams'];
             } else {
                 $this->_dijitParams = array();
             }
 
             $options = $this->getOptions();
             if (array_key_exists('dijitParams', $options)) {
                 $this->_dijitParams = array_merge($this->_dijitParams, $options['dijitParams']);
                 $this->removeOption('dijitParams');
             }
         }
 
         // Ensure we have a title param
         if (!array_key_exists('title', $this->_dijitParams)) {
             $this->_dijitParams['title'] = $this->getTitle();
         }
 
         return $this->_dijitParams;
     }
 
     /**
      * Get title
      *
      * @return string
      */
     public function getTitle()
     {
         if (null === $this->_title) {
             $title = null;
             if (null !== ($element = $this->getElement())) {
                 if (method_exists($element, 'getLegend')) {
                     $title = $element->getLegend();
                 }
             }
             if (empty($title) && (null !== ($title = $this->getOption('legend')))) {
                 $this->removeOption('legend');
             }
             if (empty($title) && (null !== ($title = $this->getOption('title')))) {
                 $this->removeOption('title');
             }
 
             if (!empty($title)) {
                 if (null !== ($translator = $element->getTranslator())) {
                     $title = $translator->translate($title);
                 }
                 $this->_title = $title;
             }
         }
 
         return (empty($this->_title) ? '' : $this->_title);
     }
 
     /**
      * Render a dijit layout container
      *
      * Replaces $content entirely from currently set element.
      *
      * @param  string $content
      * @return string
      */
     public function render($content)
     {
         $element = $this->getElement();
         $view    = $element->getView();
         if (null === $view) {
             return $content;
         }
 
         $dijitParams = $this->getDijitParams();
         $attribs     = array_merge($this->getAttribs(), $this->getOptions());
 
         if (array_key_exists('legend', $attribs)) {
             if (!array_key_exists('title', $dijitParams) || empty($dijitParams['title'])) {
                 $dijitParams['title'] = $attribs['legend'];
             }
             unset($attribs['legend']);
         }
 
         $helper      = $this->getHelper();
         $id          = $element->getId() . '-' . $helper;
 
         if ($view->dojo()->hasDijit($id)) {
             trigger_error(sprintf('Duplicate dijit ID detected for id "%s; temporarily generating uniqid"', $id), E_USER_WARNING);
             $base = $id;
             do {
                 $id = $base . '-' . uniqid();
             } while ($view->dojo()->hasDijit($id));
         }
 
         return $view->$helper($id, $content, $dijitParams, $attribs);
     }
 }