/**
* Out of the box, the handler "CurrentForm" value, which will return the rendered form.
* Non-Ajax calls will redirect back.
*
* @param HTTPRequest $request
* @param array $extraCallbacks List of anonymous functions or callables returning either a string
* or HTTPResponse, keyed by their fragment identifier. The 'default' key can
* be used as a fallback for non-ajax responses.
* @return HTTPResponse
* @throws HTTPResponse_Exception
*/
public function respond(HTTPRequest $request, $extraCallbacks = array())
{
// Prepare the default options and combine with the others
$callbacks = array_merge($this->callbacks, $extraCallbacks);
$response = $this->getResponse();
$responseParts = array();
if (isset($this->fragmentOverride)) {
$fragments = $this->fragmentOverride;
} elseif ($fragmentStr = $request->getHeader('X-Pjax')) {
$fragments = explode(',', $fragmentStr);
} else {
if ($request->isAjax()) {
throw new HTTPResponse_Exception("Ajax requests to this URL require an X-Pjax header.", 400);
} elseif (empty($callbacks['default'])) {
throw new HTTPResponse_Exception("Missing default response handler for this URL", 400);
}
$response->setBody(call_user_func($callbacks['default']));
return $response;
}
// Execute the fragment callbacks and build the response.
foreach ($fragments as $fragment) {
if (isset($callbacks[$fragment])) {
$res = call_user_func($callbacks[$fragment]);
$responseParts[$fragment] = $res ? (string) $res : $res;
} else {
throw new HTTPResponse_Exception("X-Pjax = '{$fragment}' not supported for this URL.", 400);
}
}
$response->setBody(Convert::raw2json($responseParts));
$response->addHeader('Content-Type', 'text/json');
return $response;
}
public function testIsAjax()
{
$req = new HTTPRequest('GET', '/', array('ajax' => 0));
$this->assertFalse($req->isAjax());
$req = new HTTPRequest('GET', '/', array('ajax' => 1));
$this->assertTrue($req->isAjax());
$req = new HTTPRequest('GET', '/');
$req->addHeader('X-Requested-With', 'XMLHttpRequest');
$this->assertTrue($req->isAjax());
}
/**
* Invoke a batch action
*
* @param HTTPRequest $request
* @return HTTPResponse
*/
public function handleBatchAction($request)
{
// This method can't be called without ajax.
if (!$request->isAjax()) {
return $this->parentController->redirectBack();
}
// Protect against CSRF on destructive action
if (!SecurityToken::inst()->checkRequest($request)) {
return $this->httpError(400);
}
// Find the action handler
$action = $request->param('BatchAction');
$actionHandler = $this->actionByName($action);
// Sanitise ID list and query the database for apges
$csvIDs = $request->requestVar('csvIDs');
$ids = $this->cleanIDs($csvIDs);
// Filter ids by those which are applicable to this action
// Enforces front end filter in LeftAndMain.BatchActions.js:refreshSelected
$ids = $actionHandler->applicablePages($ids);
// Query ids and pass to action to process
$pages = $this->getPages($ids);
return $actionHandler->run($pages);
}
/**
* @param HTTPRequest $request
* @return mixed
*/
public function edit($request)
{
$controller = $this->getToplevelController();
$form = $this->ItemEditForm();
$return = $this->customise(array('Backlink' => $controller->hasMethod('Backlink') ? $controller->Backlink() : $controller->Link(), 'ItemEditForm' => $form))->renderWith($this->getTemplates());
if ($request->isAjax()) {
return $return;
} else {
// If not requested by ajax, we need to render it within the controller context+template
return $controller->customise(array('Content' => $return));
}
}
