public function defaultAction()
{
$return_value = null;
$request = __FrontController::getInstance()->getRequest();
$application_context = __ApplicationContext::getInstance();
$request_flow_execution_key = $application_context->getPropertyContent('REQUEST_FLOW_EXECUTION_KEY');
if ($request->hasParameter($request_flow_execution_key)) {
$flow_execution_key = $request->getParameter($request_flow_execution_key);
$request_flow_event_id = $application_context->getPropertyContent('REQUEST_FLOW_EVENT_ID');
$request_flow_state_id = $application_context->getPropertyContent('REQUEST_FLOW_STATE_ID');
$flow_executor = __FlowExecutor::getInstance();
//sync with the current state sent from client:
if ($request->hasParameter($request_flow_state_id)) {
$flow_execution = $flow_executor->getActiveFlowExecution();
if ($flow_execution != null) {
$flow_state_id = $request->getParameter($request_flow_state_id);
if ($flow_execution->isStateVisited($flow_state_id)) {
$current_state = $flow_execution->getCurrentState();
if ($current_state != null && $current_state->getId() != $flow_state_id) {
$state = $flow_execution->goToState($flow_state_id);
if ($state != null && !$request->hasParameter($request_flow_event_id)) {
$application_context = __ApplicationContext::getInstance();
$request_flow_execution_key = $application_context->getPropertyContent('REQUEST_FLOW_EXECUTION_KEY');
$flow_execution_key = $request->getParameter($request_flow_execution_key);
$this->_executeControllerAssociatedToState($state, $flow_executor, $flow_execution_key);
}
}
} else {
throw __ExceptionFactory::getInstance()->createException('Flow state not yet visited: ' . $flow_state_id);
}
}
}
//checks flow event:
if ($request->hasParameter($request_flow_event_id)) {
$flow_event_id = $request->getParameter($request_flow_event_id);
$state = $flow_executor->resume($flow_execution_key, $flow_event_id);
if ($state != null) {
$this->_executeControllerAssociatedToState($state, $flow_executor, $flow_execution_key);
}
} else {
if ($flow_executor->hasFlowExecution($flow_execution_key)) {
$return_value = $flow_executor->getResponse($flow_execution_key);
$return_value->setBufferControl(true);
//let also the browser cache the page
$return_value->addHeader('Cache-Control: private, max-age=10800, pre-check=10800');
$return_value->addHeader('Pragma: private');
$return_value->addHeader("Expires: " . date(DATE_RFC822, strtotime("+2 day")));
} else {
//start a new flow and redirect the user to the very first step:
$this->startFlowAction();
}
}
}
return $return_value;
}
public function startRender(__IComponent &$component)
{
$component_id = $component->getId();
$component_properties = $component->getProperties();
foreach ($component_properties as $property => $value) {
$property = strtolower($property);
if ($property != 'runat') {
$properties[] = $property . '="' . $value . '"';
}
}
$properties[] = 'id="' . $component_id . '"';
$properties[] = 'name="' . $component->getName() . '"';
$properties[] = 'action = "' . __UriContainerWriterHelper::resolveUrl($component) . '"';
$properties[] = 'method="' . strtoupper($component->getMethod()) . '"';
if ($component->getVisible() == false) {
$properties[] = 'style = "display : none;"';
}
$url = __FrontController::getInstance()->getRequest()->getUrl();
$encoded_url = base64_encode(serialize($url));
$form_code = '<form ' . join(' ', $properties) . ' onSubmit="return (__ClientEventHandler.getInstance()).handleSubmit(this);">' . "\n";
$request_submit_code = __ContextManager::getInstance()->getApplicationContext()->getPropertyContent('REQUEST_SUBMIT_CODE');
$form_code .= '<input type="HIDDEN" name="' . $request_submit_code . '" value="' . $component_id . '"></input>' . "\n";
$form_code .= '<input type="HIDDEN" name="viewCode" value="' . $encoded_url . '"></input>' . "\n";
$flow_executor = __FlowExecutor::getInstance();
if ($flow_executor->hasActiveFlowExecution()) {
$active_flow_execution = $flow_executor->getActiveFlowExecution();
$request_flow_execution_key = __ApplicationContext::getInstance()->getPropertyContent('REQUEST_FLOW_EXECUTION_KEY');
$form_code .= '<input type="HIDDEN" name="' . $request_flow_execution_key . '" value="' . $active_flow_execution->getId() . '"></input>' . "\n";
$current_state = $active_flow_execution->getCurrentState();
if ($current_state != null) {
$request_flow_state_id = __ApplicationContext::getInstance()->getPropertyContent('REQUEST_FLOW_STATE_ID');
$form_code .= '<input type="HIDDEN" name="' . $request_flow_state_id . '" value="' . $current_state->getId() . '"></input>' . "\n";
}
}
$hidden_parameters = $component->getHiddenParameters();
foreach ($hidden_parameters as $hidden_parameter_name => $hidden_parameter_value) {
if (strtoupper($hidden_parameter_name) != strtoupper($request_submit_code) && strtoupper($hidden_parameter_name) != 'CLIENTENDPOINTVALUES') {
$form_code .= '<input type="HIDDEN" name="' . $hidden_parameter_name . '" value="' . htmlentities($hidden_parameter_value) . '"></input>' . "\n";
}
}
return $form_code;
}
public function &getFlowScope()
{
return __FlowExecutor::getInstance()->getActiveFlowExecution();
}
