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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_View
  * @subpackage Helper
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @version    $Id$
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 
 /** Zend_View_Helper_Placeholder_Container_Standalone */
 // require_once 'Zend/View/Helper/Placeholder/Container/Standalone.php';
 
 /**
  * Helper for setting and retrieving title element for HTML head
  *
  * @uses       Zend_View_Helper_Placeholder_Container_Standalone
  * @package    Zend_View
  * @subpackage Helper
  * @copyright  Copyright (c) 2005-2015 Zend Technologies USA Inc. (http://www.zend.com)
  * @license    http://framework.zend.com/license/new-bsd     New BSD License
  */
 class Zend_View_Helper_HeadTitle extends Zend_View_Helper_Placeholder_Container_Standalone
 {
     /**
      * Registry key for placeholder
      * @var string
      */
     protected $_regKey = 'Zend_View_Helper_HeadTitle';
 
     /**
      * Whether or not auto-translation is enabled
      * @var boolean
      */
     protected $_translate = false;
 
     /**
      * Translation object
      *
      * @var Zend_Translate_Adapter
      */
     protected $_translator;
 
     /**
      * Default title rendering order (i.e. order in which each title attached)
      *
      * @var string
      */
     protected $_defaultAttachOrder = null;
 
     /**
      * Retrieve placeholder for title element and optionally set state
      *
      * @param  string $title
      * @param  string $setType
      * @return Zend_View_Helper_HeadTitle
      */
     public function headTitle($title = null, $setType = null)
     {
         if (null === $setType) {
             $setType = (null === $this->getDefaultAttachOrder())
                      ? Zend_View_Helper_Placeholder_Container_Abstract::APPEND
                      : $this->getDefaultAttachOrder();
         }
         $title = (string) $title;
         if ($title !== '') {
             if ($setType == Zend_View_Helper_Placeholder_Container_Abstract::SET) {
                 $this->set($title);
             } elseif ($setType == Zend_View_Helper_Placeholder_Container_Abstract::PREPEND) {
                 $this->prepend($title);
             } else {
                 $this->append($title);
             }
         }
 
         return $this;
     }
 
     /**
      * Set a default order to add titles
      *
      * @param string $setType
      */
     public function setDefaultAttachOrder($setType)
     {
         if (!in_array($setType, array(
             Zend_View_Helper_Placeholder_Container_Abstract::APPEND,
             Zend_View_Helper_Placeholder_Container_Abstract::SET,
             Zend_View_Helper_Placeholder_Container_Abstract::PREPEND
         ))) {
             // require_once 'Zend/View/Exception.php';
             throw new Zend_View_Exception("You must use a valid attach order: 'PREPEND', 'APPEND' or 'SET'");
         }
 
         $this->_defaultAttachOrder = $setType;
         return $this;
     }
 
     /**
      * Get the default attach order, if any.
      *
      * @return mixed
      */
     public function getDefaultAttachOrder()
     {
         return $this->_defaultAttachOrder;
     }
 
     /**
      * Sets a translation Adapter for translation
      *
      * @param  Zend_Translate|Zend_Translate_Adapter $translate
      * @return Zend_View_Helper_HeadTitle
      */
     public function setTranslator($translate)
     {
         if ($translate instanceof Zend_Translate_Adapter) {
             $this->_translator = $translate;
         } elseif ($translate instanceof Zend_Translate) {
             $this->_translator = $translate->getAdapter();
         } else {
             // require_once 'Zend/View/Exception.php';
             $e = new Zend_View_Exception("You must set an instance of Zend_Translate or Zend_Translate_Adapter");
             $e->setView($this->view);
             throw $e;
         }
         return $this;
     }
 
     /**
      * Retrieve translation object
      *
      * If none is currently registered, attempts to pull it from the registry
      * using the key 'Zend_Translate'.
      *
      * @return Zend_Translate_Adapter|null
      */
     public function getTranslator()
     {
         if (null === $this->_translator) {
             // require_once 'Zend/Registry.php';
             if (Zend_Registry::isRegistered('Zend_Translate')) {
                 $this->setTranslator(Zend_Registry::get('Zend_Translate'));
             }
         }
         return $this->_translator;
     }
 
     /**
      * Enables translation
      *
      * @return Zend_View_Helper_HeadTitle
      */
     public function enableTranslation()
     {
         $this->_translate = true;
         return $this;
     }
 
     /**
      * Disables translation
      *
      * @return Zend_View_Helper_HeadTitle
      */
     public function disableTranslation()
     {
         $this->_translate = false;
         return $this;
     }
 
     /**
      * Turn helper into string
      *
      * @param  string|null $indent
      * @param  string|null $locale
      * @return string
      */
     public function toString($indent = null, $locale = null)
     {
         $indent = (null !== $indent)
                 ? $this->getWhitespace($indent)
                 : $this->getIndent();
 
         $items = array();
 
         if($this->_translate && $translator = $this->getTranslator()) {
             foreach ($this as $item) {
                 $items[] = $translator->translate($item, $locale);
             }
         } else {
             foreach ($this as $item) {
                 $items[] = $item;
             }
         }
 
         $separator = $this->getSeparator();
         $output = '';
         if(($prefix = $this->getPrefix())) {
             $output  .= $prefix;
         }
         $output .= implode($separator, $items);
         if(($postfix = $this->getPostfix())) {
             $output .= $postfix;
         }
 
         $output = ($this->_autoEscape) ? $this->_escape($output) : $output;
 
         return $indent . '<title>' . $output . '</title>';
     }
 }