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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_Controller
* @subpackage Zend_Controller_Action_Helper
* @copyright Copyright (c) 2005-2009 Zend Technologies USA Inc. (http://www.zend.com)
* @license http://framework.zend.com/license/new-bsd New BSD License
* @version $Id: Abstract.php 18951 2009-11-12 16:26:19Z alexander $
*/
/**
* @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) 2005-2009 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);
}
}
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