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authortof <>2008-06-23 14:15:09 +0000
committertof <>2008-06-23 14:15:09 +0000
commit54b1d633d46c704cd5f46109c3552d66658db0ad (patch)
tree95a6420c147c186a66904d51705f50096e2a6506 /framework/Web/UI
parent8ca884c1c21c3bcbb075443052fd6541654fb81f (diff)
Fixed #870
Diffstat (limited to 'framework/Web/UI')
-rw-r--r--framework/Web/UI/ActiveControls/TActivePageAdapter.php738
1 files changed, 369 insertions, 369 deletions
diff --git a/framework/Web/UI/ActiveControls/TActivePageAdapter.php b/framework/Web/UI/ActiveControls/TActivePageAdapter.php
index ea5d673b..4baa35fa 100644
--- a/framework/Web/UI/ActiveControls/TActivePageAdapter.php
+++ b/framework/Web/UI/ActiveControls/TActivePageAdapter.php
@@ -1,370 +1,370 @@
-<?php
-/**
- * TActivePageAdapter, TCallbackErrorHandler and TInvalidCallbackException class file.
- *
- * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
- * @link http://www.pradosoft.com/
- * @copyright Copyright &copy; 2005 PradoSoft
- * @license http://www.pradosoft.com/license/
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- */
-
-/**
- * Load callback response adapter class.
- */
-Prado::using('System.Web.UI.ActiveControls.TCallbackResponseAdapter');
-Prado::using('System.Web.UI.ActiveControls.TCallbackClientScript');
-Prado::using('System.Web.UI.ActiveControls.TCallbackEventParameter');
-
-/**
- * TActivePageAdapter class.
- *
- * Callback request handler.
- *
- * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TActivePageAdapter extends TControlAdapter
-{
- /**
- * Callback response data header name.
- */
- const CALLBACK_DATA_HEADER = 'X-PRADO-DATA';
- /**
- * Callback response client-side action header name.
- */
- const CALLBACK_ACTION_HEADER = 'X-PRADO-ACTIONS';
- /**
- * Callback error header name.
- */
- const CALLBACK_ERROR_HEADER = 'X-PRADO-ERROR';
- /**
- * Callback page state header name.
- */
- const CALLBACK_PAGESTATE_HEADER = 'X-PRADO-PAGESTATE';
-
- /**
- * Callback redirect url header name.
- */
- const CALLBACK_REDIRECT = 'X-PRADO-REDIRECT';
-
- /**
- * @var ICallbackEventHandler callback event handler.
- */
- private $_callbackEventTarget;
- /**
- * @var mixed callback event parameter.
- */
- private $_callbackEventParameter;
- /**
- * @var TCallbackClientScript callback client script handler
- */
- private $_callbackClient;
-
- private $_controlsToRender=array();
-
- /**
- * Constructor, trap errors and exception to let the callback response
- * handle them.
- */
- public function __construct(TPage $control)
- {
- parent::__construct($control);
-
- //TODO: can this be done later?
- $response = $this->getApplication()->getResponse();
- $response->setAdapter(new TCallbackResponseAdapter($response));
-
- $this->trapCallbackErrorsExceptions();
- }
-
- /**
- * Process the callback request.
- * @param THtmlWriter html content writer.
- */
- public function processCallbackEvent($writer)
- {
- Prado::trace("ActivePage raiseCallbackEvent()",'System.Web.UI.ActiveControls.TActivePageAdapter');
- $this->raiseCallbackEvent();
- }
-
- /**
- * Register a control for defered render() call.
- * @param TControl control for defered rendering
- * @param THtmlWriter the renderer
- */
- public function registerControlToRender($control,$writer)
- {
- $id = $control->getUniqueID();
- if(!isset($this->_controlsToRender[$id]))
- $this->_controlsToRender[$id] = array($control,$writer);
- }
-
- /**
- * Trap errors and exceptions to be handled by TCallbackErrorHandler.
- */
- protected function trapCallbackErrorsExceptions()
- {
- $this->getApplication()->setErrorHandler(new TCallbackErrorHandler);
- }
-
- /**
- * Render the callback response.
- * @param THtmlWriter html content writer.
- */
- public function renderCallbackResponse($writer)
- {
- Prado::trace("ActivePage renderCallbackResponse()",'System.Web.UI.ActiveControls.TActivePageAdapter');
- if(($url = $this->getResponse()->getAdapter()->getRedirectedUrl())===null)
- $this->renderResponse($writer);
- else
- $this->redirect($url);
- }
-
- /**
- * Redirect url on the client-side using javascript.
- * @param string new url to load.
- */
- protected function redirect($url)
- {
- if(!$this->getApplication()->getRequestCompleted())
- $this->getApplication()->onEndRequest();
- $this->appendContentPart($this->getResponse(), self::CALLBACK_REDIRECT, $url);
- //$this->getResponse()->appendHeader(self::CALLBACK_REDIRECT.': '.$url);
- }
-
- /**
- * Renders the callback response by adding additional callback data and
- * javascript actions in the header and page state if required.
- * @param THtmlWriter html content writer.
- */
- protected function renderResponse($writer)
- {
- //renders all the defered render() calls.
- foreach($this->_controlsToRender as $rid => $forRender)
- $forRender[0]->render($forRender[1]);
-
- $response = $this->getResponse();
-
- //send response data in header
- if($response->getHasAdapter())
- {
- $responseData = $response->getAdapter()->getResponseData();
- if(!is_null($responseData))
- {
- $data = TJavascript::jsonEncode($responseData);
-
- $this->appendContentPart($response, self::CALLBACK_DATA_HEADER, $data);
- //$response->appendHeader(self::CALLBACK_DATA_HEADER.': '.$data);
- }
- }
-
- //sends page state in header
- if(($handler = $this->getCallbackEventTarget()) !== null)
- {
- if($handler->getActiveControl()->getClientSide()->getEnablePageStateUpdate())
- {
- $pagestate = $this->getPage()->getClientState();
- $this->appendContentPart($response, self::CALLBACK_PAGESTATE_HEADER, $pagestate);
- //$response->appendHeader(self::CALLBACK_PAGESTATE_HEADER.': '.$pagestate);
- }
- }
-
- //safari must receive at least 1 byte of data.
- $writer->write(" ");
-
- //output the end javascript
- if($this->getPage()->getClientScript()->hasEndScripts())
- {
- $writer = $response->createHtmlWriter();
- $this->getPage()->getClientScript()->renderEndScripts($writer);
- $this->getPage()->getCallbackClient()->evaluateScript($writer);
- }
-
- //output the actions
- $executeJavascript = $this->getCallbackClientHandler()->getClientFunctionsToExecute();
- $actions = TJavascript::jsonEncode($executeJavascript);
- $this->appendContentPart($response, self::CALLBACK_ACTION_HEADER, $actions);
- //$response->appendHeader(self::CALLBACK_ACTION_HEADER.': '.$actions);
- }
-
- /**
- * Appends data or javascript code to the body content surrounded with delimiters
- */
- private function appendContentPart($response, $delimiter, $data)
- {
- $content = $response->createHtmlWriter();
- $content->getWriter()->setBoundary($delimiter);
- $content->write($data);
- }
-
- /**
- * Trys to find the callback event handler and raise its callback event.
- * @throws TInvalidCallbackException if call back target is not found.
- * @throws TInvalidCallbackException if the requested target does not
- * implement ICallbackEventHandler.
- */
- private function raiseCallbackEvent()
- {
- if(($callbackHandler=$this->getCallbackEventTarget())!==null)
- {
- if($callbackHandler instanceof ICallbackEventHandler)
- {
- $param = $this->getCallbackEventParameter();
- $result = new TCallbackEventParameter($this->getResponse(), $param);
- $callbackHandler->raiseCallbackEvent($result);
- }
- else
- {
- throw new TInvalidCallbackException(
- 'callback_invalid_handler', $callbackHandler->getUniqueID());
- }
- }
- else
- {
- $target = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_TARGET);
- throw new TInvalidCallbackException('callback_invalid_target', $target);
- }
- }
-
- /**
- * @return TControl the control responsible for the current callback event,
- * null if nonexistent
- */
- public function getCallbackEventTarget()
- {
- if($this->_callbackEventTarget===null)
- {
- $eventTarget=$this->getRequest()->itemAt(TPage::FIELD_CALLBACK_TARGET);
- if(!empty($eventTarget))
- $this->_callbackEventTarget=$this->getPage()->findControl($eventTarget);
- }
- return $this->_callbackEventTarget;
- }
-
- /**
- * Registers a control to raise callback event in the current request.
- * @param TControl control registered to raise callback event.
- */
- public function setCallbackEventTarget(TControl $control)
- {
- $this->_callbackEventTarget=$control;
- }
-
- /**
- * 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 $this->_callbackEventParameter;
- }
-
- /**
- * @param mixed postback event parameter
- */
- public function setCallbackEventParameter($value)
- {
- $this->_callbackEventParameter=$value;
- }
-
- /**
- * Gets the callback client script handler. It handlers the javascript functions
- * to be executed during the callback response.
- * @return TCallbackClientScript callback client handler.
- */
- public function getCallbackClientHandler()
- {
- if(is_null($this->_callbackClient))
- $this->_callbackClient = new TCallbackClientScript;
- return $this->_callbackClient;
- }
-}
-
-/**
- * TCallbackErrorHandler class.
- *
- * Captures errors and exceptions and send them back during callback response.
- * When the application is in debug mode, the error and exception stack trace
- * are shown. A TJavascriptLogger must be present on the client-side to view
- * the error stack trace.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TCallbackErrorHandler extends TErrorHandler
-{
- /**
- * Displays the exceptions to the client-side TJavascriptLogger.
- * A HTTP 500 status code is sent and the stack trace is sent as JSON encoded.
- * @param Exception exception details.
- */
- protected function displayException($exception)
- {
- if($this->getApplication()->getMode()===TApplication::STATE_DEBUG)
- {
- $response = $this->getApplication()->getResponse();
- $trace = TJavascript::jsonEncode($this->getExceptionStackTrace($exception));
- $response->appendHeader('HTTP/1.0 500 Internal Error');
- $response->appendHeader(TActivePageAdapter::CALLBACK_ERROR_HEADER.': '.$trace);
- }
- else
- {
- error_log("Error happened while processing an existing error:\n".$exception->__toString());
- header('HTTP/1.0 500 Internal Error');
- }
- $this->getApplication()->getResponse()->flush();
- }
-
- /**
- * @param Exception exception details.
- * @return array exception stack trace details.
- */
- private function getExceptionStackTrace($exception)
- {
- $data['code']=$exception->getCode() > 0 ? $exception->getCode() : 500;
- $data['file']=$exception->getFile();
- $data['line']=$exception->getLine();
- $data['trace']=$exception->getTrace();
- if($exception instanceof TPhpErrorException)
- {
- // if PHP exception, we want to show the 2nd stack level context
- // because the 1st stack level is of little use (it's in error handler)
- if(isset($trace[0]) && isset($trace[0]['file']) && isset($trace[0]['line']))
- {
- $data['file']=$trace[0]['file'];
- $data['line']=$trace[0]['line'];
- }
- }
- $data['type']=get_class($exception);
- $data['message']=$exception->getMessage();
- $data['version']=$_SERVER['SERVER_SOFTWARE'].' '.Prado::getVersion();
- $data['time']=@strftime('%Y-%m-%d %H:%M',time());
- return $data;
- }
-}
-
-/**
- * TInvalidCallbackException class.
- *
- * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
- * @version $Id$
- * @package System.Web.UI.ActiveControls
- * @since 3.1
- */
-class TInvalidCallbackException extends TException
-{
-}
-
+<?php
+/**
+ * TActivePageAdapter, TCallbackErrorHandler and TInvalidCallbackException class file.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @link http://www.pradosoft.com/
+ * @copyright Copyright &copy; 2005 PradoSoft
+ * @license http://www.pradosoft.com/license/
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ */
+
+/**
+ * Load callback response adapter class.
+ */
+Prado::using('System.Web.UI.ActiveControls.TCallbackResponseAdapter');
+Prado::using('System.Web.UI.ActiveControls.TCallbackClientScript');
+Prado::using('System.Web.UI.ActiveControls.TCallbackEventParameter');
+
+/**
+ * TActivePageAdapter class.
+ *
+ * Callback request handler.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TActivePageAdapter extends TControlAdapter
+{
+ /**
+ * Callback response data header name.
+ */
+ const CALLBACK_DATA_HEADER = 'X-PRADO-DATA';
+ /**
+ * Callback response client-side action header name.
+ */
+ const CALLBACK_ACTION_HEADER = 'X-PRADO-ACTIONS';
+ /**
+ * Callback error header name.
+ */
+ const CALLBACK_ERROR_HEADER = 'X-PRADO-ERROR';
+ /**
+ * Callback page state header name.
+ */
+ const CALLBACK_PAGESTATE_HEADER = 'X-PRADO-PAGESTATE';
+
+ /**
+ * Callback redirect url header name.
+ */
+ const CALLBACK_REDIRECT = 'X-PRADO-REDIRECT';
+
+ /**
+ * @var ICallbackEventHandler callback event handler.
+ */
+ private $_callbackEventTarget;
+ /**
+ * @var mixed callback event parameter.
+ */
+ private $_callbackEventParameter;
+ /**
+ * @var TCallbackClientScript callback client script handler
+ */
+ private $_callbackClient;
+
+ private $_controlsToRender=array();
+
+ /**
+ * Constructor, trap errors and exception to let the callback response
+ * handle them.
+ */
+ public function __construct(TPage $control)
+ {
+ parent::__construct($control);
+
+ //TODO: can this be done later?
+ $response = $this->getApplication()->getResponse();
+ $response->setAdapter(new TCallbackResponseAdapter($response));
+
+ $this->trapCallbackErrorsExceptions();
+ }
+
+ /**
+ * Process the callback request.
+ * @param THtmlWriter html content writer.
+ */
+ public function processCallbackEvent($writer)
+ {
+ Prado::trace("ActivePage raiseCallbackEvent()",'System.Web.UI.ActiveControls.TActivePageAdapter');
+ $this->raiseCallbackEvent();
+ }
+
+ /**
+ * Register a control for defered render() call.
+ * @param TControl control for defered rendering
+ * @param THtmlWriter the renderer
+ */
+ public function registerControlToRender($control,$writer)
+ {
+ $id = $control->getUniqueID();
+ if(!isset($this->_controlsToRender[$id]))
+ $this->_controlsToRender[$id] = array($control,$writer);
+ }
+
+ /**
+ * Trap errors and exceptions to be handled by TCallbackErrorHandler.
+ */
+ protected function trapCallbackErrorsExceptions()
+ {
+ $this->getApplication()->setErrorHandler(new TCallbackErrorHandler);
+ }
+
+ /**
+ * Render the callback response.
+ * @param THtmlWriter html content writer.
+ */
+ public function renderCallbackResponse($writer)
+ {
+ Prado::trace("ActivePage renderCallbackResponse()",'System.Web.UI.ActiveControls.TActivePageAdapter');
+ if(($url = $this->getResponse()->getAdapter()->getRedirectedUrl())===null)
+ $this->renderResponse($writer);
+ else
+ $this->redirect($url);
+ }
+
+ /**
+ * Redirect url on the client-side using javascript.
+ * @param string new url to load.
+ */
+ protected function redirect($url)
+ {
+ Prado::trace("ActivePage redirect()",'System.Web.UI.ActiveControls.TActivePageAdapter');
+ $this->appendContentPart($this->getResponse(), self::CALLBACK_REDIRECT, $url);
+ //$this->getResponse()->appendHeader(self::CALLBACK_REDIRECT.': '.$url);
+ }
+
+ /**
+ * Renders the callback response by adding additional callback data and
+ * javascript actions in the header and page state if required.
+ * @param THtmlWriter html content writer.
+ */
+ protected function renderResponse($writer)
+ {
+ Prado::trace("ActivePage renderResponse()",'System.Web.UI.ActiveControls.TActivePageAdapter');
+ //renders all the defered render() calls.
+ foreach($this->_controlsToRender as $rid => $forRender)
+ $forRender[0]->render($forRender[1]);
+
+ $response = $this->getResponse();
+
+ //send response data in header
+ if($response->getHasAdapter())
+ {
+ $responseData = $response->getAdapter()->getResponseData();
+ if(!is_null($responseData))
+ {
+ $data = TJavascript::jsonEncode($responseData);
+
+ $this->appendContentPart($response, self::CALLBACK_DATA_HEADER, $data);
+ //$response->appendHeader(self::CALLBACK_DATA_HEADER.': '.$data);
+ }
+ }
+
+ //sends page state in header
+ if(($handler = $this->getCallbackEventTarget()) !== null)
+ {
+ if($handler->getActiveControl()->getClientSide()->getEnablePageStateUpdate())
+ {
+ $pagestate = $this->getPage()->getClientState();
+ $this->appendContentPart($response, self::CALLBACK_PAGESTATE_HEADER, $pagestate);
+ //$response->appendHeader(self::CALLBACK_PAGESTATE_HEADER.': '.$pagestate);
+ }
+ }
+
+ //safari must receive at least 1 byte of data.
+ $writer->write(" ");
+
+ //output the end javascript
+ if($this->getPage()->getClientScript()->hasEndScripts())
+ {
+ $writer = $response->createHtmlWriter();
+ $this->getPage()->getClientScript()->renderEndScripts($writer);
+ $this->getPage()->getCallbackClient()->evaluateScript($writer);
+ }
+
+ //output the actions
+ $executeJavascript = $this->getCallbackClientHandler()->getClientFunctionsToExecute();
+ $actions = TJavascript::jsonEncode($executeJavascript);
+ $this->appendContentPart($response, self::CALLBACK_ACTION_HEADER, $actions);
+ //$response->appendHeader(self::CALLBACK_ACTION_HEADER.': '.$actions);
+ }
+
+ /**
+ * Appends data or javascript code to the body content surrounded with delimiters
+ */
+ private function appendContentPart($response, $delimiter, $data)
+ {
+ $content = $response->createHtmlWriter();
+ $content->getWriter()->setBoundary($delimiter);
+ $content->write($data);
+ }
+
+ /**
+ * Trys to find the callback event handler and raise its callback event.
+ * @throws TInvalidCallbackException if call back target is not found.
+ * @throws TInvalidCallbackException if the requested target does not
+ * implement ICallbackEventHandler.
+ */
+ private function raiseCallbackEvent()
+ {
+ if(($callbackHandler=$this->getCallbackEventTarget())!==null)
+ {
+ if($callbackHandler instanceof ICallbackEventHandler)
+ {
+ $param = $this->getCallbackEventParameter();
+ $result = new TCallbackEventParameter($this->getResponse(), $param);
+ $callbackHandler->raiseCallbackEvent($result);
+ }
+ else
+ {
+ throw new TInvalidCallbackException(
+ 'callback_invalid_handler', $callbackHandler->getUniqueID());
+ }
+ }
+ else
+ {
+ $target = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_TARGET);
+ throw new TInvalidCallbackException('callback_invalid_target', $target);
+ }
+ }
+
+ /**
+ * @return TControl the control responsible for the current callback event,
+ * null if nonexistent
+ */
+ public function getCallbackEventTarget()
+ {
+ if($this->_callbackEventTarget===null)
+ {
+ $eventTarget=$this->getRequest()->itemAt(TPage::FIELD_CALLBACK_TARGET);
+ if(!empty($eventTarget))
+ $this->_callbackEventTarget=$this->getPage()->findControl($eventTarget);
+ }
+ return $this->_callbackEventTarget;
+ }
+
+ /**
+ * Registers a control to raise callback event in the current request.
+ * @param TControl control registered to raise callback event.
+ */
+ public function setCallbackEventTarget(TControl $control)
+ {
+ $this->_callbackEventTarget=$control;
+ }
+
+ /**
+ * 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 $this->_callbackEventParameter;
+ }
+
+ /**
+ * @param mixed postback event parameter
+ */
+ public function setCallbackEventParameter($value)
+ {
+ $this->_callbackEventParameter=$value;
+ }
+
+ /**
+ * Gets the callback client script handler. It handlers the javascript functions
+ * to be executed during the callback response.
+ * @return TCallbackClientScript callback client handler.
+ */
+ public function getCallbackClientHandler()
+ {
+ if(is_null($this->_callbackClient))
+ $this->_callbackClient = new TCallbackClientScript;
+ return $this->_callbackClient;
+ }
+}
+
+/**
+ * TCallbackErrorHandler class.
+ *
+ * Captures errors and exceptions and send them back during callback response.
+ * When the application is in debug mode, the error and exception stack trace
+ * are shown. A TJavascriptLogger must be present on the client-side to view
+ * the error stack trace.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TCallbackErrorHandler extends TErrorHandler
+{
+ /**
+ * Displays the exceptions to the client-side TJavascriptLogger.
+ * A HTTP 500 status code is sent and the stack trace is sent as JSON encoded.
+ * @param Exception exception details.
+ */
+ protected function displayException($exception)
+ {
+ if($this->getApplication()->getMode()===TApplication::STATE_DEBUG)
+ {
+ $response = $this->getApplication()->getResponse();
+ $trace = TJavascript::jsonEncode($this->getExceptionStackTrace($exception));
+ $response->appendHeader('HTTP/1.0 500 Internal Error');
+ $response->appendHeader(TActivePageAdapter::CALLBACK_ERROR_HEADER.': '.$trace);
+ }
+ else
+ {
+ error_log("Error happened while processing an existing error:\n".$exception->__toString());
+ header('HTTP/1.0 500 Internal Error');
+ }
+ $this->getApplication()->getResponse()->flush();
+ }
+
+ /**
+ * @param Exception exception details.
+ * @return array exception stack trace details.
+ */
+ private function getExceptionStackTrace($exception)
+ {
+ $data['code']=$exception->getCode() > 0 ? $exception->getCode() : 500;
+ $data['file']=$exception->getFile();
+ $data['line']=$exception->getLine();
+ $data['trace']=$exception->getTrace();
+ if($exception instanceof TPhpErrorException)
+ {
+ // if PHP exception, we want to show the 2nd stack level context
+ // because the 1st stack level is of little use (it's in error handler)
+ if(isset($trace[0]) && isset($trace[0]['file']) && isset($trace[0]['line']))
+ {
+ $data['file']=$trace[0]['file'];
+ $data['line']=$trace[0]['line'];
+ }
+ }
+ $data['type']=get_class($exception);
+ $data['message']=$exception->getMessage();
+ $data['version']=$_SERVER['SERVER_SOFTWARE'].' '.Prado::getVersion();
+ $data['time']=@strftime('%Y-%m-%d %H:%M',time());
+ return $data;
+ }
+}
+
+/**
+ * TInvalidCallbackException class.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Id$
+ * @package System.Web.UI.ActiveControls
+ * @since 3.1
+ */
+class TInvalidCallbackException extends TException
+{
+}
+
?> \ No newline at end of file