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 <?php
 /**
  * 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_ProgressBar
  * @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    $Id$
  */
 
 /**
  * @see Zend_Json
  */
 // require_once 'Zend/Json.php';
 
 /**
  * @see Zend_ProgressBar_Adapter
  */
 // require_once 'Zend/ProgressBar/Adapter.php';
 
 /**
  * Zend_ProgressBar_Adapter_JsPush offers a simple method for updating a
  * progressbar in a browser.
  *
  * @category  Zend
  * @package   Zend_ProgressBar
  * @uses      Zend_ProgressBar_Adapter_Interface
  * @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_ProgressBar_Adapter_JsPush extends Zend_ProgressBar_Adapter
 {
     /**
      * Name of the JavaScript method to call on update
      *
      * @var string
      */
     protected $_updateMethodName = 'Zend_ProgressBar_Update';
 
     /**
      * Name of the JavaScript method to call on finish
      *
      * @var string
      */
     protected $_finishMethodName;
 
     /**
      * Set the update method name
      *
      * @param  string $methodName
      * @return Zend_ProgressBar_Adapter_JsPush
      */
     public function setUpdateMethodName($methodName)
     {
         $this->_updateMethodName = $methodName;
 
         return $this;
     }
 
     /**
      * Set the finish method name
      *
      * @param  string $methodName
      * @return Zend_ProgressBar_Adapter_JsPush
      */
     public function setFinishMethodName($methodName)
     {
         $this->_finishMethodName = $methodName;
 
         return $this;
     }
 
     /**
      * Defined by Zend_ProgressBar_Adapter_Interface
      *
      * @param  float   $current       Current progress value
      * @param  float   $max           Max progress value
      * @param  float   $percent       Current percent value
      * @param  integer $timeTaken     Taken time in seconds
      * @param  integer $timeRemaining Remaining time in seconds
      * @param  string  $text          Status text
      * @return void
      */
     public function notify($current, $max, $percent, $timeTaken, $timeRemaining, $text)
     {
         $arguments = array(
             'current'       => $current,
             'max'           => $max,
             'percent'       => ($percent * 100),
             'timeTaken'     => $timeTaken,
             'timeRemaining' => $timeRemaining,
             'text'          => $text
         );
 
         $data = '<script type="text/javascript">'
               . 'parent.' . $this->_updateMethodName . '(' . Zend_Json::encode($arguments) . ');'
               . '</script>';
 
         // Output the data
         $this->_outputData($data);
     }
 
     /**
      * Defined by Zend_ProgressBar_Adapter_Interface
      *
      * @return void
      */
     public function finish()
     {
         if ($this->_finishMethodName === null) {
             return;
         }
 
         $data = '<script type="text/javascript">'
               . 'parent.' . $this->_finishMethodName . '();'
               . '</script>';
 
         $this->_outputData($data);
     }
 
     /**
      * Outputs given data the user agent.
      *
      * This split-off is required for unit-testing.
      *
      * @param  string $data
      * @return void
      */
     protected function _outputData($data)
     {
         // 1024 padding is required for Safari, while 256 padding is required
         // for Internet Explorer. The <br /> is required so Safari actually
         // executes the <script />
         echo str_pad($data . '<br />', 1024, ' ', STR_PAD_RIGHT) . "\n";
 
         flush();
         ob_flush();
     }
 }