diff options
Diffstat (limited to 'framework/Web/UI/ActiveControls/TActivePageAdapter.php')
| -rw-r--r-- | framework/Web/UI/ActiveControls/TActivePageAdapter.php | 109 |
1 files changed, 86 insertions, 23 deletions
diff --git a/framework/Web/UI/ActiveControls/TActivePageAdapter.php b/framework/Web/UI/ActiveControls/TActivePageAdapter.php index 77d8a7fe..90c64820 100644 --- a/framework/Web/UI/ActiveControls/TActivePageAdapter.php +++ b/framework/Web/UI/ActiveControls/TActivePageAdapter.php @@ -1,6 +1,6 @@ <?php
/**
- * TActivePageAdapter class file.
+ * TActivePageAdapter, TCallbackEventParameter, TCallbackErrorHandler and TInvalidCallbackException class file.
*
* @author Wei Zhuo <weizhuo[at]gamil[dot]com>
* @link http://www.pradosoft.com/
@@ -9,11 +9,16 @@ * @version $Revision: $ $Date: $
* @package System.Web.UI.ActiveControls
*/
-
+
+/**
+ * Load callback response adapter class.
+ */
+Prado::using('System.Web.UI.ActiveControls.TCallbackResponseAdapter');
+
/**
* TActivePageAdapter class.
*
- * Callback request page handler.
+ * Callback request handler.
*
* @author Wei Zhuo <weizhuo[at]gamil[dot]com>
* @version $Revision: $ $Date: $
@@ -22,9 +27,21 @@ */
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';
/**
@@ -57,6 +74,7 @@ class TActivePageAdapter extends TControlAdapter /**
* Process the callback request.
+ * @param THtmlWriter html content writer.
*/
public function processCallbackEvent($writer)
{
@@ -64,6 +82,9 @@ class TActivePageAdapter extends TControlAdapter $this->raiseCallbackEvent();
}
+ /**
+ * Trap errors and exceptions to be handled by TCallbackErrorHandler.
+ */
protected function trapCallbackErrorsExceptions()
{
$this->getApplication()->setErrorHandler(new TCallbackErrorHandler);
@@ -71,6 +92,7 @@ class TActivePageAdapter extends TControlAdapter /**
* Render the callback response.
+ * @param THtmlWriter html content writer.
*/
public function renderCallbackResponse($writer)
{
@@ -81,14 +103,12 @@ class TActivePageAdapter extends TControlAdapter /**
* 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)
{
$response = $this->getResponse();
- $executeJavascript = $this->getCallbackClientHandler()->getClientFunctionsToExecute()->toArray();
- $actions = TJavascript::jsonEncode($executeJavascript);
- $response->appendHeader(self::CALLBACK_ACTION_HEADER.': '.$actions);
-
+
//send response data in header
if($response->getHasAdapter())
{
@@ -109,12 +129,29 @@ class TActivePageAdapter extends TControlAdapter $response->appendHeader(self::CALLBACK_PAGESTATE_HEADER.': '.$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()->toArray();
+ $actions = TJavascript::jsonEncode($executeJavascript);
+ $response->appendHeader(self::CALLBACK_ACTION_HEADER.': '.$actions);
+
}
/**
* Trys to find the callback event handler and raise its callback event.
- * @throws TInvalidCallbackRequestException if call back target is not found.
- * @throws TInvalidCallbackHandlerException if the requested target does not
+ * @throws TInvalidCallbackException if call back target is not found.
+ * @throws TInvalidCallbackException if the requested target does not
* implement ICallbackEventHandler.
*/
private function raiseCallbackEvent()
@@ -129,13 +166,14 @@ class TActivePageAdapter extends TControlAdapter }
else
{
- throw new TInvalidCallbackHandlerException($callbackHandler->getUniqueID());
+ throw new TInvalidCallbackException(
+ 'callback_invalid_handler', $callbackHandler->getUniqueID());
}
}
else
{
$target = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_TARGET);
- throw new TInvalidCallbackRequestException($target);
+ throw new TInvalidCallbackException('callback_invalid_target', $target);
}
}
@@ -164,7 +202,7 @@ class TActivePageAdapter extends TControlAdapter }
/**
- * Callback parameter is decoded assuming JSON encoding.
+ * Gets callback parameter. JSON encoding is assumed.
* @return string postback event parameter
*/
public function getCallbackEventParameter()
@@ -187,7 +225,7 @@ class TActivePageAdapter extends TControlAdapter }
/**
- * Gets the callback client script handler that allows javascript functions
+ * Gets the callback client script handler. It handlers the javascript functions
* to be executed during the callback response.
* @return TCallbackClientScript callback client handler.
*/
@@ -267,16 +305,34 @@ class TCallbackEventParameter extends TEventParameter }
}
+/**
+ * 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 $Revision: $ Sun Jun 18 19:11:47 EST 2006 $
+ * @package System.Web.UI.ActiveControls
+ * @since 3.0
+ */
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();
- $data = TJavascript::jsonEncode($this->getExceptionData($exception));
+ $trace = TJavascript::jsonEncode($this->getExceptionStackTrace($exception));
$response->appendHeader('HTTP/1.0 500 Internal Error');
- $response->appendHeader(TActivePageAdapter::CALLBACK_ERROR_HEADER.': '.$data);
+ $response->appendHeader(TActivePageAdapter::CALLBACK_ERROR_HEADER.': '.$trace);
}
else
{
@@ -286,9 +342,13 @@ class TCallbackErrorHandler extends TErrorHandler $this->getApplication()->getResponse()->flush();
}
- private function getExceptionData($exception)
+ /**
+ * @param Exception exception details.
+ * @return array exception stack trace details.
+ */
+ private function getExceptionStackTrace($exception)
{
- $data['code']=$exception->getCode() > 0 ? $exception->getCode() : 505;
+ $data['code']=$exception->getCode() > 0 ? $exception->getCode() : 500;
$data['file']=$exception->getFile();
$data['line']=$exception->getLine();
$data['trace']=$exception->getTrace();
@@ -310,13 +370,16 @@ class TCallbackErrorHandler extends TErrorHandler }
}
-class TInvalidCallbackHandlerException extends TException
+/**
+ * TInvalidCallbackException class.
+ *
+ * @author Wei Zhuo <weizhuo[at]gmail[dot]com>
+ * @version $Revision: $ Sun Jun 18 19:17:13 EST 2006 $
+ * @package System.Web.UI.ActiveControls
+ * @since 3.0
+ */
+class TInvalidCallbackException extends TException
{
-
}
-class TInvalidCallbackRequestException extends TException
-{
-}
-
?>
\ No newline at end of file |