diff -r 000000000000 -r 4eba9c11703f web/Zend/Controller/Action/Helper/AutoComplete/Abstract.php
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/web/Zend/Controller/Action/Helper/AutoComplete/Abstract.php	Mon Dec 13 18:29:26 2010 +0100
@@ -0,0 +1,149 @@
+<?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_Controller
+ * @subpackage Zend_Controller_Action_Helper
+ * @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: Abstract.php 20096 2010-01-06 02:05:09Z bkarwin $
+ */
+
+/**
+ * @see Zend_Controller_Action_Helper_Abstract
+ */
+require_once 'Zend/Controller/Action/Helper/Abstract.php';
+
+/**
+ * Create and send autocompletion lists
+ *
+ * @uses       Zend_Controller_Action_Helper_Abstract
+ * @category   Zend
+ * @package    Zend_Controller
+ * @subpackage Zend_Controller_Action_Helper
+ * @copyright  Copyright (c) 2005-2010 Zend Technologies USA Inc. (http://www.zend.com)
+ * @license    http://framework.zend.com/license/new-bsd     New BSD License
+ */
+abstract class Zend_Controller_Action_Helper_AutoComplete_Abstract extends Zend_Controller_Action_Helper_Abstract
+{
+    /**
+     * Suppress exit when sendJson() called
+     *
+     * @var boolean
+     */
+    public $suppressExit = false;
+
+    /**
+     * Validate autocompletion data
+     *
+     * @param  mixed $data
+     * @return boolean
+     */
+    abstract public function validateData($data);
+
+    /**
+     * Prepare autocompletion data
+     *
+     * @param  mixed   $data
+     * @param  boolean $keepLayouts
+     * @return mixed
+     */
+    abstract public function prepareAutoCompletion($data, $keepLayouts = false);
+
+    /**
+     * Disable layouts and view renderer
+     *
+     * @return Zend_Controller_Action_Helper_AutoComplete_Abstract Provides a fluent interface
+     */
+    public function disableLayouts()
+    {
+        /**
+         * @see Zend_Layout
+         */
+        require_once 'Zend/Layout.php';
+        if (null !== ($layout = Zend_Layout::getMvcInstance())) {
+            $layout->disableLayout();
+        }
+
+        Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer')->setNoRender(true);
+
+        return $this;
+    }
+
+    /**
+     * Encode data to JSON
+     *
+     * @param  mixed $data
+     * @param  bool  $keepLayouts
+     * @throws Zend_Controller_Action_Exception
+     * @return string
+     */
+    public function encodeJson($data, $keepLayouts = false)
+    {
+        if ($this->validateData($data)) {
+            return Zend_Controller_Action_HelperBroker::getStaticHelper('Json')->encodeJson($data, $keepLayouts);
+        }
+
+        /**
+         * @see Zend_Controller_Action_Exception
+         */
+        require_once 'Zend/Controller/Action/Exception.php';
+        throw new Zend_Controller_Action_Exception('Invalid data passed for autocompletion');
+    }
+
+    /**
+     * Send autocompletion data
+     *
+     * Calls prepareAutoCompletion, populates response body with this
+     * information, and sends response.
+     *
+     * @param  mixed $data
+     * @param  bool  $keepLayouts
+     * @return string|void
+     */
+    public function sendAutoCompletion($data, $keepLayouts = false)
+    {
+        $data = $this->prepareAutoCompletion($data, $keepLayouts);
+
+        $response = $this->getResponse();
+        $response->setBody($data);
+
+        if (!$this->suppressExit) {
+            $response->sendResponse();
+            exit;
+        }
+
+        return $data;
+    }
+
+    /**
+     * Strategy pattern: allow calling helper as broker method
+     *
+     * Prepares autocompletion data and, if $sendNow is true, immediately sends
+     * response.
+     *
+     * @param  mixed $data
+     * @param  bool  $sendNow
+     * @param  bool  $keepLayouts
+     * @return string|void
+     */
+    public function direct($data, $sendNow = true, $keepLayouts = false)
+    {
+        if ($sendNow) {
+            return $this->sendAutoCompletion($data, $keepLayouts);
+        }
+
+        return $this->prepareAutoCompletion($data, $keepLayouts);
+    }
+}