diff -r 000000000000 -r 4eba9c11703f web/Zend/ProgressBar/Adapter/JsPush.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/ProgressBar/Adapter/JsPush.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,148 @@
+<?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: JsPush.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_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) 2005-2010 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();
+    }
+}