protected function processCallbackRequest($writer)
{
Prado::using('System.Web.UI.ActiveControls.TActivePageAdapter');
$this->setAdapter(new TActivePageAdapter($this));
$callbackEventParameter = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_PARAMETER);
if (strlen($callbackEventParameter) > 0) {
$this->_postData[TPage::FIELD_CALLBACK_PARAMETER] = TJavaScript::jsonDecode((string) $callbackEventParameter);
}
if (($g = $this->getApplication()->getGlobalization(false)) !== null && strtoupper($enc = $g->getCharset()) != 'UTF-8') {
foreach ($this->_postData as $k => $v) {
$this->_postData[$k] = self::decodeUTF8($v, $enc);
}
}
$this->onPreInit(null);
$this->initRecursive();
$this->onInitComplete(null);
$this->_restPostData = new TMap();
$this->loadPageState();
$this->processPostData($this->_postData, true);
$this->onPreLoad(null);
$this->loadRecursive();
$this->processPostData($this->_restPostData, false);
$this->raiseChangedEvents();
$this->getAdapter()->processCallbackEvent($writer);
$this->onLoadComplete(null);
$this->preRenderRecursive();
$this->onPreRenderComplete(null);
$this->savePageState();
$this->onSaveStateComplete(null);
$this->getAdapter()->renderCallbackResponse($writer);
$this->unloadRecursive();
}
/**
* Gets callback parameter. JSON encoding is assumed.
* @return string postback event parameter
*/
public function getCallbackEventParameter()
{
if ($this->_callbackEventParameter === null) {
$param = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_PARAMETER);
if (strlen($param) > 0) {
$this->_callbackEventParameter = TJavaScript::jsonDecode((string) $param);
}
}
return $this->_callbackEventParameter;
}