/** * {@inheritdoc} */ public function buildResponse(Request $request, array $form, FormStateInterface $form_state, array $commands) { // If the form build ID has changed, issue an Ajax command to update it. if (isset($form['#build_id_old']) && $form['#build_id_old'] !== $form['#build_id']) { $commands[] = new UpdateBuildIdCommand($form['#build_id_old'], $form['#build_id']); } // We need to return the part of the form (or some other content) that needs // to be re-rendered so the browser can update the page with changed // content. It is up to the #ajax['callback'] function of the element (may // or may not be a button) that triggered the Ajax request to determine what // needs to be rendered. $callback = NULL; if (($triggering_element = $form_state->getTriggeringElement()) && isset($triggering_element['#ajax']['callback'])) { $callback = $triggering_element['#ajax']['callback']; } $callback = $form_state->prepareCallback($callback); if (empty($callback) || !is_callable($callback)) { throw new HttpException(500, 'The specified #ajax callback is empty or not callable.'); } $result = call_user_func_array($callback, [&$form, &$form_state, $request]); // If the callback is an #ajax callback, the result is a render array, and // we need to turn it into an AJAX response, so that we can add any commands // we got earlier; typically the UpdateBuildIdCommand when handling an AJAX // submit from a cached page. if ($result instanceof AjaxResponse) { $response = $result; } else { /** @var \Drupal\Core\Ajax\AjaxResponse $response */ $response = $this->ajaxRenderer->renderResponse($result, $request, $this->routeMatch); } foreach ($commands as $command) { $response->addCommand($command, TRUE); } return $response; }
/** * {@inheritdoc} */ public function executeValidateHandlers(&$form, FormStateInterface &$form_state) { // If there was a button pressed, use its handlers. $handlers = $form_state->getValidateHandlers(); // Otherwise, check for a form-level handler. if (!$handlers && isset($form['#validate'])) { $handlers = $form['#validate']; } foreach ($handlers as $callback) { call_user_func_array($form_state->prepareCallback($callback), array(&$form, &$form_state)); } }
/** * {@inheritdoc} */ public function prepareCallback($callback) { return $this->mainFormState->prepareCallback($callback); }
/** * {@inheritdoc} */ public function executeSubmitHandlers(&$form, FormStateInterface &$form_state) { // If there was a button pressed, use its handlers. $handlers = $form_state->getSubmitHandlers(); // Otherwise, check for a form-level handler. if (!$handlers && !empty($form['#submit'])) { $handlers = $form['#submit']; } foreach ($handlers as $callback) { // Check if a previous _submit handler has set a batch, but make sure we // do not react to a batch that is already being processed (for instance // if a batch operation performs a // \Drupal\Core\Form\FormBuilderInterface::submitForm()). if (($batch =& $this->batchGet()) && !isset($batch['id'])) { // Some previous submit handler has set a batch. To ensure correct // execution order, store the call in a special 'control' batch set. // See _batch_next_set(). $batch['sets'][] = array('form_submit' => $callback); $batch['has_form_submits'] = TRUE; } else { call_user_func_array($form_state->prepareCallback($callback), array(&$form, &$form_state)); } } }
/** * {@inheritdoc} */ public function prepareCallback($callback) { return $this->decoratedFormState->prepareCallback($callback); }
/** * @covers ::prepareCallback * * @dataProvider providerPrepareCallback * * @param string|callable $unprepared_callback * @param callable $prepared_callback */ public function testPrepareCallback($unprepared_callback, callable $prepared_callback) { $this->decoratedFormState->prepareCallback($unprepared_callback)->willReturn($prepared_callback)->shouldBeCalled(); $this->assertSame($prepared_callback, $this->formStateDecoratorBase->prepareCallback($unprepared_callback)); }