diff -r 000000000000 -r 4eba9c11703f web/Zend/ProgressBar/Adapter/JsPull.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/ProgressBar/Adapter/JsPull.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,117 @@
+<?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) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ * @version    $Id: JsPull.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Json
+ */
+require_once 'Zend/Json.php';
+
+/**
+ * @see Zend_ProgressBar_Adapter
+ */
+require_once 'Zend/ProgressBar/Adapter.php';
+
+/**
+ * Zend_ProgressBar_Adapter_JsPull offers a simple method for updating a
+ * progressbar in a browser.
+ *
+ * @category  Zend
+ * @package   Zend_ProgressBar
+ * @uses      Zend_ProgressBar_Adapter_Interface
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license   http://framework.zend.com/license/new-bsd     New BSD License
+ */
+class Zend_ProgressBar_Adapter_JsPull extends Zend_ProgressBar_Adapter
+{
+    /**
+     * Wether to exit after json data send or not
+     *
+     * @var boolean
+     */
+    protected $_exitAfterSend = true;
+
+    /**
+     * Set wether to exit after json data send or not
+     *
+     * @param  boolean $exitAfterSend
+     * @return Zend_ProgressBar_Adapter_JsPull
+     */
+    public function setExitAfterSend($exitAfterSend)
+    {
+        $this->_exitAfterSend = $exitAfterSend;
+    }
+
+    /**
+     * 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,
+            'finished'      => false
+        );
+
+        $data = Zend_Json::encode($arguments);
+
+        // Output the data
+        $this->_outputData($data);
+    }
+
+    /**
+     * Defined by Zend_ProgressBar_Adapter_Interface
+     *
+     * @return void
+     */
+    public function finish()
+    {
+        $data = Zend_Json::encode(array('finished' => true));
+
+        $this->_outputData($data);
+    }
+
+    /**
+     * Outputs given data the user agent.
+     *
+     * This split-off is required for unit-testing.
+     *
+     * @param  string $data
+     * @return void
+     */
+    protected function _outputData($data)
+    {
+        echo $data;
+
+        if ($this->_exitAfterSend) {
+            exit;
+        }
+    }
+}