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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
  * @subpackage 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
  */
 
 /** Zend_Form_Decorator_Abstract */
 // require_once 'Zend/Form/Decorator/Abstract.php';
 
 /**
  * Zend_Form_Decorator_ViewScript
  *
  * Render a view script as a decorator
  *
  * Accepts the options:
  * - separator: separator to use between view script content and provided content (defaults to PHP_EOL)
  * - placement: whether to append or prepend view script content to provided content (defaults to prepend)
  * - viewScript: view script to use
  * - viewModule: module that view script is in (optional)
  *
  * The view script is rendered as a partial; the element being decorated is
  * passed in as the 'element' variable:
  * <code>
  * // in view script:
  * echo $this->element->getLabel();
  * </code>
  *
  * Any options other than separator, placement, viewScript, and viewModule are passed to
  * the partial as local variables.
  *
  * @category   Zend
  * @package    Zend_Form
  * @subpackage 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    $Id$
  */
 class Zend_Form_Decorator_ViewScript extends Zend_Form_Decorator_Abstract
 {
     /**
      * Default placement: append
      * @var string
      */
     protected $_placement = 'APPEND';
 
     /**
      * View script to render
      * @var string
      */
     protected $_viewScript;
 
     /**
      * View script module
      * @var string
      */
     protected $_viewModule;
 
     /**
      * Set view script
      *
      * @param  string $script
      * @return Zend_Form_Decorator_ViewScript
      */
     public function setViewScript($script)
     {
         $this->_viewScript = (string) $script;
         return $this;
     }
 
     /**
      * Get view script
      *
      * @return string|null
      */
     public function getViewScript()
     {
         if (null === $this->_viewScript) {
             if (null !== ($element = $this->getElement())) {
                 if (null !== ($viewScript = $element->getAttrib('viewScript'))) {
                     $this->setViewScript($viewScript);
                     return $viewScript;
                 }
             }
 
             if (null !== ($viewScript = $this->getOption('viewScript'))) {
                 $this->setViewScript($viewScript)
                      ->removeOption('viewScript');
             }
         }
 
         return $this->_viewScript;
     }
 
     /**
      * Set view script module
      *
      * @param  string $module
      * @return Zend_Form_Decorator_ViewScript
      */
     public function setViewModule($viewModule)
     {
         $this->_viewModule = (string) $viewModule;
         return $this;
     }
 
     /**
      * Get view script module
      *
      * @return string|null
      */
     public function getViewModule()
     {
         if (null === $this->_viewModule) {
             if (null !== ($element = $this->getElement())) {
                 if (null !== ($viewModule = $element->getAttrib('viewModule'))) {
                     $this->setViewModule($viewModule);
                     return $viewModule;
                 }
             }
 
             if (null !== ($viewModule = $this->getOption('viewModule'))) {
                 $this->setViewModule($viewModule)
                      ->removeOption('viewModule');
             }
         }
 
         return $this->_viewModule;
     }
 
     /**
      * Render a view script
      *
      * @param  string $content
      * @return string
      */
     public function render($content)
     {
         $element = $this->getElement();
         $view    = $element->getView();
         if (null === $view) {
             return $content;
         }
 
         $viewScript = $this->getViewScript();
         if (empty($viewScript)) {
             // require_once 'Zend/Form/Exception.php';
             throw new Zend_Form_Exception('No view script registered with ViewScript decorator');
         }
 
         $separator = $this->getSeparator();
         $placement = $this->getPlacement();
 
         $vars              = $this->getOptions();
         $vars['element']   = $element;
         $vars['content']   = $content;
         $vars['decorator'] = $this;
 
         $viewModule = $this->getViewModule();
         if (empty($viewModule)) {
             $renderedContent = $view->partial($viewScript, $vars);
         } else {
             $renderedContent = $view->partial($viewScript, $viewModule, $vars);
         }
 
         // Get placement again to see if it has changed
         $placement = $this->getPlacement();
 
         switch ($placement) {
             case self::PREPEND:
                 return $renderedContent . $separator . $content;
             case self::APPEND:
                 return $content . $separator . $renderedContent;
             default:
                 return $renderedContent;
         }
     }
 }