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