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<?php
/**
* TFlushOutput class file
*
* @author Berczi Gabor <gabor.berczi@devworx.hu>
* @link https://github.com/pradosoft/prado
* @license https://github.com/pradosoft/prado/blob/master/COPYRIGHT
* @package System.Web.UI.WebControls
*/
/**
* TFlushOutput class.
*
* TFlushOutput enables forced flushing of the current output buffer
* at (a) certain point(s) in the page, after rendering of all previous
* controls has been completed.
*
* To use TFlushOutput, simply place it in a template where you want
* the have the output buffered between the start of the page or the
* last TFlushOutput to be sent to the client immediately
* <code>
* <com:TFlushOutput />
* </code>
*
* You can specify whether you want to keep buffering of the output
* (if it was enabled) till the next occourence of a <com: TFlushOutput />
* or the end of the page rendering, or stop buffering, by using the
* {@link setContinueBuffering ContinueBuffering}.
*
* @author Berczi Gabor <gabor.berczi@devworx.hu>
* @package System.Web.UI.WebControls
* @since 3.1
*/
class TFlushOutput extends TControl
{
/**
* @var boolean whether to continue buffering of output
*/
private $_continueBuffering=true;
/**
* Constructor.
*/
public function __construct()
{
parent::__construct();
$this->EnableViewState = false;
}
/**
* @return Tells whether buffering of output can continue after this point
*/
public function getContinueBuffering()
{
return $this->_continueBuffering;
}
/**
* @param boolean sets whether buffering of output can continue after this point
*/
public function setContinueBuffering($value)
{
$this->_continueBuffering = TPropertyValue::ensureBoolean($value);
}
/**
* Flushes the output of all completely rendered controls to the client.
* @param THtmlWriter writer for the rendering purpose
*/
public function render($writer)
{
//$writer->write('<!-- flush -->');
// ajax responses can't be parsed by the client side before loaded and returned completely,
// so don't bother with flushing output somewhere mid-page if refreshing in a callback
if (!$this->Page->IsCallback)
{
$this->Page->flushWriter();
// $this->Application->flushOutput($this->ContinueBuffering);
}
}
}
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