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<?php | |
/** | |
* @file | |
* Contains \Drupal\views_ui\Form\Ajax\ViewsFormBase. | |
*/ | |
namespace Drupal\views_ui\Form\Ajax; | |
use Drupal\Component\Utility\Html; | |
use Drupal\Core\Ajax\OpenModalDialogCommand; | |
use Drupal\Core\Form\FormBase; | |
use Drupal\Core\Form\FormState; | |
use Drupal\Core\Form\FormStateInterface; | |
use Drupal\Core\Render\BubbleableMetadata; | |
use Drupal\Core\Render\RenderContext; | |
use Drupal\views\ViewEntityInterface; | |
use Drupal\views\Ajax; | |
use Drupal\Core\Ajax\AjaxResponse; | |
use Drupal\Core\Ajax\CloseModalDialogCommand; | |
use Symfony\Component\HttpFoundation\RedirectResponse; | |
/** | |
* Provides a base class for Views UI AJAX forms. | |
*/ | |
abstract class ViewsFormBase extends FormBase implements ViewsFormInterface { | |
/** | |
* The ID of the item this form is manipulating. | |
* | |
* @var string | |
*/ | |
protected $id; | |
/** | |
* The type of item this form is manipulating. | |
* | |
* @var string | |
*/ | |
protected $type; | |
/** | |
* Sets the ID for this form. | |
* | |
* @param string $id | |
* The ID of the item this form is manipulating. | |
*/ | |
protected function setID($id) { | |
if ($id) { | |
$this->id = $id; | |
} | |
} | |
/** | |
* Sets the type for this form. | |
* | |
* @param string $type | |
* The type of the item this form is manipulating. | |
*/ | |
protected function setType($type) { | |
if ($type) { | |
$this->type = $type; | |
} | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getFormState(ViewEntityInterface $view, $display_id, $js) { | |
// $js may already have been converted to a Boolean. | |
$ajax = is_string($js) ? $js === 'ajax' : $js; | |
return (new FormState()) | |
->set('form_id', $this->getFormId()) | |
->set('form_key', $this->getFormKey()) | |
->set('ajax', $ajax) | |
->set('display_id', $display_id) | |
->set('view', $view) | |
->set('type', $this->type) | |
->set('id', $this->id) | |
->disableRedirect() | |
->addBuildInfo('callback_object', $this); | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function getForm(ViewEntityInterface $view, $display_id, $js) { | |
$form_state = $this->getFormState($view, $display_id, $js); | |
$view = $form_state->get('view'); | |
$key = $form_state->get('form_key'); | |
// @todo Remove the need for this. | |
\Drupal::moduleHandler()->loadInclude('views_ui', 'inc', 'admin'); | |
// Reset the cache of IDs. Drupal rather aggressively prevents ID | |
// duplication but this causes it to remember IDs that are no longer even | |
// being used. | |
Html::resetSeenIds(); | |
// check to see if this is the top form of the stack. If it is, pop | |
// it off; if it isn't, the user clicked somewhere else and the stack is | |
// now irrelevant. | |
if (!empty($view->stack)) { | |
$identifier = implode('-', array_filter([$key, $view->id(), $display_id, $form_state->get('type'), $form_state->get('id')])); | |
// Retrieve the first form from the stack without changing the integer keys, | |
// as they're being used for the "2 of 3" progress indicator. | |
reset($view->stack); | |
list($key, $top) = each($view->stack); | |
unset($view->stack[$key]); | |
if (array_shift($top) != $identifier) { | |
$view->stack = array(); | |
} | |
} | |
// Automatically remove the form cache if it is set and the key does | |
// not match. This way navigating away from the form without hitting | |
// update will work. | |
if (isset($view->form_cache) && $view->form_cache['key'] != $key) { | |
unset($view->form_cache); | |
} | |
$form_class = get_class($form_state->getFormObject()); | |
$response = $this->ajaxFormWrapper($form_class, $form_state); | |
// If the form has not been submitted, or was not set for rerendering, stop. | |
if (!$form_state->isSubmitted() || $form_state->get('rerender')) { | |
return $response; | |
} | |
// Sometimes we need to re-generate the form for multi-step type operations. | |
if (!empty($view->stack)) { | |
$stack = $view->stack; | |
$top = array_shift($stack); | |
// Build the new form state for the next form in the stack. | |
$reflection = new \ReflectionClass($view::$forms[$top[1]]); | |
/** @var $form_state \Drupal\Core\Form\FormStateInterface */ | |
$form_state = $reflection->newInstanceArgs(array_slice($top, 3, 2))->getFormState($view, $top[2], $form_state->get('ajax')); | |
$form_class = get_class($form_state->getFormObject()); | |
$form_state->setUserInput(array()); | |
$form_url = views_ui_build_form_url($form_state); | |
if (!$form_state->get('ajax')) { | |
return new RedirectResponse($form_url->setAbsolute()->toString()); | |
} | |
$form_state->set('url', $form_url); | |
$response = $this->ajaxFormWrapper($form_class, $form_state); | |
} | |
elseif (!$form_state->get('ajax')) { | |
// if nothing on the stack, non-js forms just go back to the main view editor. | |
$display_id = $form_state->get('display_id'); | |
return new RedirectResponse($this->url('entity.view.edit_display_form', ['view' => $view->id(), 'display_id' => $display_id], ['absolute' => TRUE])); | |
} | |
else { | |
$response = new AjaxResponse(); | |
$response->addCommand(new CloseModalDialogCommand()); | |
$response->addCommand(new Ajax\ShowButtonsCommand(!empty($view->changed))); | |
$response->addCommand(new Ajax\TriggerPreviewCommand()); | |
if ($page_title = $form_state->get('page_title')) { | |
$response->addCommand(new Ajax\ReplaceTitleCommand($page_title)); | |
} | |
} | |
// If this form was for view-wide changes, there's no need to regenerate | |
// the display section of the form. | |
if ($display_id !== '') { | |
\Drupal::entityManager()->getFormObject('view', 'edit')->rebuildCurrentTab($view, $response, $display_id); | |
} | |
return $response; | |
} | |
/** | |
* Wrapper for handling AJAX forms. | |
* | |
* Wrapper around \Drupal\Core\Form\FormBuilderInterface::buildForm() to | |
* handle some AJAX stuff automatically. | |
* This makes some assumptions about the client. | |
* | |
* @param \Drupal\Core\Form\FormInterface|string $form_class | |
* The value must be one of the following: | |
* - The name of a class that implements \Drupal\Core\Form\FormInterface. | |
* - An instance of a class that implements \Drupal\Core\Form\FormInterface. | |
* @param \Drupal\Core\Form\FormStateInterface $form_state | |
* The current state of the form. | |
* | |
* @return \Drupal\Core\Ajax\AjaxResponse|string|array | |
* Returns one of three possible values: | |
* - A \Drupal\Core\Ajax\AjaxResponse object. | |
* - The rendered form, as a string. | |
* - A render array with the title in #title and the rendered form in the | |
* #markup array. | |
*/ | |
protected function ajaxFormWrapper($form_class, FormStateInterface &$form_state) { | |
/** @var \Drupal\Core\Render\RendererInterface $renderer */ | |
$renderer = \Drupal::service('renderer'); | |
// This won't override settings already in. | |
if (!$form_state->has('rerender')) { | |
$form_state->set('rerender', FALSE); | |
} | |
$ajax = $form_state->get('ajax'); | |
// Do not overwrite if the redirect has been disabled. | |
if (!$form_state->isRedirectDisabled()) { | |
$form_state->disableRedirect($ajax); | |
} | |
$form_state->disableCache(); | |
// Builds the form in a render context in order to ensure that cacheable | |
// metadata is bubbled up. | |
$render_context = new RenderContext(); | |
$callable = function () use ($form_class, &$form_state) { | |
return \Drupal::formBuilder()->buildForm($form_class, $form_state); | |
}; | |
$form = $renderer->executeInRenderContext($render_context, $callable); | |
if (!$render_context->isEmpty()) { | |
BubbleableMetadata::createFromRenderArray($form) | |
->merge($render_context->pop()) | |
->applyTo($form); | |
} | |
$output = $renderer->renderRoot($form); | |
// These forms have the title built in, so set the title here: | |
$title = $form_state->get('title') ?: ''; | |
if ($ajax && (!$form_state->isExecuted() || $form_state->get('rerender'))) { | |
// If the form didn't execute and we're using ajax, build up an | |
// Ajax command list to execute. | |
$response = new AjaxResponse(); | |
// Attach the library necessary for using the OpenModalDialogCommand and | |
// set the attachments for this Ajax response. | |
$form['#attached']['library'][] = 'core/drupal.dialog.ajax'; | |
$response->setAttachments($form['#attached']); | |
$display = ''; | |
$status_messages = array('#type' => 'status_messages'); | |
if ($messages = $renderer->renderRoot($status_messages)) { | |
$display = '<div class="views-messages">' . $messages . '</div>'; | |
} | |
$display .= $output; | |
$options = array( | |
'dialogClass' => 'views-ui-dialog', | |
'width' => '75%', | |
); | |
$response->addCommand(new OpenModalDialogCommand($title, $display, $options)); | |
if ($section = $form_state->get('#section')) { | |
$response->addCommand(new Ajax\HighlightCommand('.' . Html::cleanCssIdentifier($section))); | |
} | |
return $response; | |
} | |
return $title ? ['#title' => $title, '#markup' => $output] : $output; | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function validateForm(array &$form, FormStateInterface $form_state) { | |
} | |
/** | |
* {@inheritdoc} | |
*/ | |
public function submitForm(array &$form, FormStateInterface $form_state) { | |
} | |
} |