diff options
Diffstat (limited to 'framework/Web/UI/ActiveControls/TActivePageAdapter.php')
| -rw-r--r-- | framework/Web/UI/ActiveControls/TActivePageAdapter.php | 164 |
1 files changed, 133 insertions, 31 deletions
diff --git a/framework/Web/UI/ActiveControls/TActivePageAdapter.php b/framework/Web/UI/ActiveControls/TActivePageAdapter.php index ab042d54..2607fec2 100644 --- a/framework/Web/UI/ActiveControls/TActivePageAdapter.php +++ b/framework/Web/UI/ActiveControls/TActivePageAdapter.php @@ -22,6 +22,10 @@ */
class TActivePageAdapter extends TControlAdapter
{
+ const CALLBACK_DATA_HEADER = 'X-PRADO-DATA';
+ const CALLBACK_ACTION_HEADER = 'X-PRADO-ACTIONS';
+ const CALLBACK_ERROR_HEADER = 'X-PRADO-ERROR';
+
/**
* @var ICallbackEventHandler callback event handler.
*/
@@ -35,11 +39,9 @@ class TActivePageAdapter extends TControlAdapter */
private $_callbackClient;
/**
- * @var TCallbackResponse callback response handler.
+ * @var TCallbackEventParameter callback result.
*/
- private $_callbackResponse;
-
- private $_callbackEventResult;
+ private $_result;
/**
* Constructor, trap errors and exception to let the callback response
@@ -48,6 +50,7 @@ class TActivePageAdapter extends TControlAdapter public function __construct(TPage $control)
{
parent::__construct($control);
+ //$this->getApplication()->setResponse($this->getCallbackResponseHandler());
$this->trapCallbackErrorsExceptions();
}
@@ -62,36 +65,36 @@ class TActivePageAdapter extends TControlAdapter protected function trapCallbackErrorsExceptions()
{
- //TODO: How to trap the errors and exceptions and return them
- // as part of the response.
+ $this->getApplication()->setErrorHandler(new TCallbackErrorHandler);
}
+ /**
+ * Render the callback response.
+ */
public function renderCallbackResponse($writer)
{
Prado::trace("ActivePage renderCallbackResponse()",'System.Web.UI.ActiveControls.TActivePageAdapter');
$this->renderResponse($writer);
}
+ /**
+ * Renders the callback response by adding additional callback data and
+ * javascript actions in the header.
+ */
protected function renderResponse($writer)
{
- //var_dump(getallheaders());
- //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
-
- /*
- $response = $this->getCallbackResponseHandler();
- $response->writeClientScriptResponse($this->getCallbackClientHandler());
- $response->writeResponseData($this->getCallbackEventResult());
- $response->flush();
- */
+ $response = $this->getResponse();
+ $executeJavascript = $this->getCallbackClientHandler()->getClientFunctionsToExecute()->toArray();
+ $actions = TJavascript::jsonEncode($executeJavascript);
+ $response->appendHeader(self::CALLBACK_ACTION_HEADER.': '.$actions);
+ $data = TJavascript::jsonEncode($this->_result->getData());
+ $response->appendHeader(self::CALLBACK_DATA_HEADER.': '.$data);
+ $response->flush();
}
/**
* Trys to find the callback event handler and raise its callback event.
- * @throws TInvalidCallbackRequestException if call back target is not
- * found.
+ * @throws TInvalidCallbackRequestException if call back target is not found.
* @throws TInvalidCallbackHandlerException if the requested target does not
* implement ICallbackEventHandler.
*/
@@ -100,7 +103,11 @@ class TActivePageAdapter extends TControlAdapter if(($callbackHandler=$this->getCallbackEventTarget())!==null)
{
if($callbackHandler instanceof ICallbackEventHandler)
- $callbackHandler->raiseCallbackEvent($this->getCallbackEventParameter());
+ {
+ $writer = $this->getResponse()->createHtmlWriter();
+ $this->_result = new TCallbackEventParameter($writer, $this->getCallbackEventParameter());
+ $callbackHandler->raiseCallbackEvent($this->_result);
+ }
else
throw new TInvalidCallbackHandlerException($callbackHandler->getUniqueID());
}
@@ -154,7 +161,6 @@ class TActivePageAdapter extends TControlAdapter $param = $this->getRequest()->itemAt(TPage::FIELD_CALLBACK_PARAMETER);
if(strlen($param) > 0)
$this->_callbackEventParameter=TJavascript::jsonDecode((string)$param);
- var_dump($param);
}
return $this->_callbackEventParameter;
}
@@ -187,23 +193,119 @@ class TActivePageAdapter extends TControlAdapter $this->_callbackClient = $handler;
}
+}
+
+/**
+ * TCallbackEventParameter class.
+ *
+ * The TCallbackEventParameter provides the parameter passed during the callback
+ * requestion in the {@link getParameter Parameter} property. The
+ * callback response response content (e.g. new HTML content) can be written to
+ * the {@link getOutput Output} property, which returns an instance of
+ * THtmlWriter. The response data (i.e., passing results back to the client-side
+ * callback handler function) can be set using {@link setData Data} property.
+ *
+ * @author Wei Zhuo <weizhuo[at]gamil[dot]com>
+ * @version $Revision: $ $Date: $
+ * @package System.Web.UI.ActiveControls
+ * @since 3.0
+ */
+class TCallbackEventParameter extends TEventParameter
+{
+ /**
+ * @var THtmlWriter output content.
+ */
+ private $_output;
+ /**
+ * @var mixed callback request parameter.
+ */
+ private $_parameter;
+ /**
+ * @var mixed callback response data.
+ */
+ private $_data;
+
+ /**
+ * Creates a new TCallbackEventParameter.
+ */
+ public function __construct($writer, $parameter)
+ {
+ $this->_output = $writer;
+ $this->_parameter = $parameter;
+ }
+
+ /**
+ * @return THtmlWriter holds the response content.
+ */
+ public function getOutput()
+ {
+ return $this->_output;
+ }
+
/**
- * Gets the callback response handler.
- * @return TCallbackResponse callback response
+ * @return mixed callback request parameter.
*/
- public function getCallbackResponseHandler()
+ public function getParameter()
{
- if(is_null($this->_callbackResponse))
- $this->_callbackResponse = new TCallbackResponse;
- return $this->_callbackResponse;
+ return $this->_parameter;
}
/**
- * @param TCallbackResponse new callback response handler.
+ * @param mixed callback response data.
*/
- public function setCallbackResponseHandler($handler)
+ public function setData($value)
{
- $this->_callbackResponse = $handler;
+ $this->_data = $value;
+ }
+
+ /**
+ * @return mixed callback response data.
+ */
+ public function getData()
+ {
+ return $this->_data;
+ }
+}
+
+class TCallbackErrorHandler extends TErrorHandler
+{
+ protected function displayException($exception)
+ {
+ if($this->getApplication()->getMode()===TApplication::STATE_DEBUG)
+ {
+ $response = $this->getApplication()->getResponse();
+ $data = TJavascript::jsonEncode($this->getExceptionData($exception));
+ $response->appendHeader('HTTP/1.0 505 Internal Error');
+ $response->appendHeader(TActivePageAdapter::CALLBACK_ERROR_HEADER.': '.$data);
+ }
+ else
+ {
+ error_log("Error happened while processing an existing error:\n".$exception->__toString());
+ header('HTTP/1.0 500 Internal Error');
+ }
+ }
+
+ private function getExceptionData($exception)
+ {
+ $data['code']=$exception->getCode() > 0 ? $exception->getCode() : 505;
+ $data['file']=$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;
}
}
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