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<?php
/*
* Created on 29/04/2006
*/
// See TActivePageAdapter::renderResponse()
//TODO: How to render the response, it will contain 3 pieces of data
// 1) The arbituary data returned to the client-side callback handler
// 2) client-side function call statements
// 3) Content body, which may need to be partitioned
class TCallbackResponse extends THttpResponse
{
private $_writers=array();
public function createHtmlWriter($type=null)
{
$writer = new TCallbackResponseWriter();
$this->_writers[] = $writer;
if($type===null)
$type=$this->getHtmlWriterType();
return Prado::createComponent($type,$writer);
}
public function flush()
{
foreach($this->_writers as $writer)
echo $writer->flush();
parent::flush();
}
}
class TCallbackResponseWriter extends TTextWriter
{
private $_boundary;
public function __construct()
{
$this->_boundary = sprintf('%x',crc32((string)$this));
}
public function getBoundary()
{
return $this->_boundary;
}
public function setBoundary($value)
{
$this->_boundary = $value;
}
public function flush()
{
$content = '<!--'.$this->getBoundary().'-->';
$content .= parent::flush();
$content .= '<!--//'.$this->getBoundary().'-->';
return $content;
}
}
?>
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