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<?php
/**
* TCallbackResponseAdapter and TCallbackResponseWriter class file.
*
* @author Wei Zhuo <weizhuo[at]gamil[dot]com>
* @link http://www.pradosoft.com/
* @copyright Copyright © 2005-2014 PradoSoft
* @license http://www.pradosoft.com/license/
* @package Prado\Web\UI\ActiveControls
*/
namespace Prado\Web\UI\ActiveControls;
/**
* TCallbackResponseAdapter alters the THttpResponse's outputs.
*
* A TCallbackResponseWriter is used instead of the TTextWrite when
* createHtmlWriter is called. Each call to createHtmlWriter will create
* a new TCallbackResponseWriter. When flushContent() is called each
* instance of TCallbackResponseWriter's content is flushed.
*
* The callback response data can be set using the {@link setResponseData ResponseData}
* property.
*
* @author Wei Zhuo <weizhuo[at]gmail[dot]com>
* @package Prado\Web\UI\ActiveControls
* @since 3.1
*/
class TCallbackResponseAdapter extends THttpResponseAdapter
{
/**
* @var TCallbackResponseWriter[] list of writers.
*/
private $_writers=array();
/**
* @var mixed callback response data.
*/
private $_data;
private $_redirectUrl=null;
/**
* Returns a new instance of THtmlWriter.
* An instance of TCallbackResponseWriter is created to hold the content.
* @param string writer class name.
* @param THttpResponse http response handler.
*/
public function createNewHtmlWriter($type,$response)
{
$writer = new TCallbackResponseWriter();
$this->_writers[] = $writer;
return parent::createNewHtmlWriter($type,$writer);
}
/**
* Flushes the contents in the writers.
*/
public function flushContent()
{
foreach($this->_writers as $writer)
echo $writer->flush();
parent::flushContent();
}
/**
* @param mixed callback response data.
*/
public function setResponseData($data)
{
$this->_data = $data;
}
/**
* @return mixed callback response data.
*/
public function getResponseData()
{
return $this->_data;
}
/**
* Delay the redirect until we process the rest of the page.
* @param string new url to redirect to.
*/
public function httpRedirect($url)
{
if($url[0]==='/')
$url=$this->getRequest()->getBaseUrl().$url;
$this->_redirectUrl=str_replace('&','&',$url);
}
/**
* @return string new url for callback response to redirect to.
*/
public function getRedirectedUrl()
{
return $this->_redirectUrl;
}
}
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