function ViewPreviewForm::form

Overrides EntityForm::form

File

core/modules/views_ui/src/ViewPreviewForm.php, line 18

Class

ViewPreviewForm

Form controller for the Views preview form.

Namespace

Code

public function form(array $form, FormStateInterface $form_state) {
    $view = $this->entity;
    $form['#prefix'] = '<div id="views-preview-wrapper" class="views-preview-wrapper views-admin clearfix">';
    $form['#suffix'] = '</div>';
    $form['#id'] = 'views-ui-preview-form';
    $form_state->disableCache();
    $form['controls']['#attributes'] = [
        'class' => [
            'clearfix',
        ],
    ];
    $form['controls']['title'] = [
        '#prefix' => '<h2 class="view-preview-form__title">',
        '#markup' => $this->t('Preview'),
        '#suffix' => '</h2>',
    ];
    // 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->toUrl('preview-form');
    $uri->setRouteParameter('display_id', $this->displayID);
    $form['#action'] = $uri->toString();
    return $form;
}