Chris@0: <?php
Chris@0: 
Chris@0: namespace Drupal\views_ui;
Chris@0: 
Chris@0: use Drupal\Core\Form\FormStateInterface;
Chris@0: use Drupal\Core\Url;
Chris@0: 
Chris@0: /**
Chris@0:  * Form controller for the Views preview form.
Chris@14:  *
Chris@14:  * @internal
Chris@0:  */
Chris@0: class ViewPreviewForm extends ViewFormBase {
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   public function form(array $form, FormStateInterface $form_state) {
Chris@0:     $view = $this->entity;
Chris@0: 
Chris@0:     $form['#prefix'] = '<div id="views-preview-wrapper" class="views-preview-wrapper views-admin clearfix">';
Chris@0:     $form['#suffix'] = '</div>';
Chris@0:     $form['#id'] = 'views-ui-preview-form';
Chris@0: 
Chris@0:     $form_state->disableCache();
Chris@0: 
Chris@0:     $form['controls']['#attributes'] = ['class' => ['clearfix']];
Chris@0: 
Chris@0:     $form['controls']['title'] = [
Chris@0:       '#prefix' => '<h2 class="view-preview-form__title">',
Chris@0:       '#markup' => $this->t('Preview'),
Chris@0:       '#suffix' => '</h2>',
Chris@0:     ];
Chris@0: 
Chris@0:     // Add a checkbox controlling whether or not this display auto-previews.
Chris@0:     $form['controls']['live_preview'] = [
Chris@0:       '#type' => 'checkbox',
Chris@0:       '#id' => 'edit-displays-live-preview',
Chris@0:       '#title' => $this->t('Auto preview'),
Chris@0:       '#default_value' => \Drupal::config('views.settings')->get('ui.always_live_preview'),
Chris@0:     ];
Chris@0: 
Chris@0:     // Add the arguments textfield
Chris@0:     $form['controls']['view_args'] = [
Chris@0:       '#type' => 'textfield',
Chris@0:       '#title' => $this->t('Preview with contextual filters:'),
Chris@0:       '#description' => $this->t('Separate contextual filter values with a "/". For example, %example.', ['%example' => '40/12/10']),
Chris@0:       '#id' => 'preview-args',
Chris@0:     ];
Chris@0: 
Chris@0:     $args = [];
Chris@0:     if (!$form_state->isValueEmpty('view_args')) {
Chris@0:       $args = explode('/', $form_state->getValue('view_args'));
Chris@0:     }
Chris@0: 
Chris@0:     $user_input = $form_state->getUserInput();
Chris@0:     if ($form_state->get('show_preview') || !empty($user_input['js'])) {
Chris@0:       $form['preview'] = [
Chris@0:         '#weight' => 110,
Chris@0:         '#theme_wrappers' => ['container'],
Chris@0:         '#attributes' => ['id' => 'views-live-preview', 'class' => ['views-live-preview']],
Chris@0:         'preview' => $view->renderPreview($this->displayID, $args),
Chris@0:       ];
Chris@0:     }
Chris@18:     $uri = $view->toUrl('preview-form');
Chris@0:     $uri->setRouteParameter('display_id', $this->displayID);
Chris@0:     $form['#action'] = $uri->toString();
Chris@0: 
Chris@0:     return $form;
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * {@inheritdoc}
Chris@0:    */
Chris@0:   protected function actions(array $form, FormStateInterface $form_state) {
Chris@0:     $view = $this->entity;
Chris@0:     return [
Chris@0:       '#attributes' => [
Chris@0:         'id' => 'preview-submit-wrapper',
Chris@17:         'class' => ['preview-submit-wrapper'],
Chris@0:       ],
Chris@0:       'button' => [
Chris@0:         '#type' => 'submit',
Chris@0:         '#value' => $this->t('Update preview'),
Chris@0:         '#attributes' => ['class' => ['arguments-preview']],
Chris@0:         '#submit' => ['::submitPreview'],
Chris@0:         '#id' => 'preview-submit',
Chris@0:         '#ajax' => [
Chris@0:           'url' => Url::fromRoute('entity.view.preview_form', ['view' => $view->id(), 'display_id' => $this->displayID]),
Chris@0:           'wrapper' => 'views-preview-wrapper',
Chris@0:           'event' => 'click',
Chris@0:           'progress' => ['type' => 'fullscreen'],
Chris@0:           'method' => 'replaceWith',
Chris@0:           'disable-refocus' => TRUE,
Chris@0:         ],
Chris@0:       ],
Chris@0:     ];
Chris@0:   }
Chris@0: 
Chris@0:   /**
Chris@0:    * Form submission handler for the Preview button.
Chris@0:    */
Chris@0:   public function submitPreview($form, FormStateInterface $form_state) {
Chris@0:     $form_state->set('show_preview', TRUE);
Chris@0:     $form_state->setRebuild();
Chris@0:   }
Chris@0: 
Chris@0: }