function CommentWidget::formElement

Overrides WidgetInterface::formElement

File

core/modules/comment/src/Plugin/Field/FieldWidget/CommentWidget.php, line 26

Class

CommentWidget

Provides a default comment widget.

Namespace

Code

public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $entity = $items->getEntity();
    $element['status'] = [
        '#type' => 'radios',
        '#title' => $this->t('Comments'),
        '#title_display' => 'invisible',
        '#default_value' => $items->status,
        '#required ' => TRUE,
        '#options' => [
            CommentItemInterface::OPEN => $this->t('Open'),
            CommentItemInterface::CLOSED => $this->t('Closed'),
            CommentItemInterface::HIDDEN => $this->t('Hidden'),
        ],
        CommentItemInterface::OPEN => [
            '#description' => $this->t('Users with the "Post comments" permission can post comments.'),
        ],
        CommentItemInterface::CLOSED => [
            '#description' => $this->t('Users cannot post comments, but existing comments will be displayed.'),
        ],
        CommentItemInterface::HIDDEN => [
            '#description' => $this->t('Comments and the comment form are hidden from view.'),
        ],
    ];
    // If the entity doesn't have any comments, the "Closed" option makes no
    // sense, so don't even bother presenting it to the user unless this is the
    // default value widget on the field settings form.
    if (!$this->isDefaultValueWidget($form_state) && !$items->comment_count) {
        // Only hide the option when it's not the currently selected option.
        if ($element['status']['#default_value'] !== CommentItemInterface::CLOSED) {
            $element['status'][CommentItemInterface::CLOSED]['#access'] = FALSE;
        }
    }
    // If the advanced settings tabs-set is available (normally rendered in the
    // second column on wide-resolutions), place the field as a details element
    // in this tab-set.
    if (isset($form['advanced'])) {
        // Get default value from the field.
        $field_default_values = $this->fieldDefinition
            ->getDefaultValue($entity);
        // Override widget title to be helpful for end users.
        $element['#title'] = $this->t('Comment settings');
        $element += [
            '#type' => 'details',
            // Open the details when the selected value is different to the stored
            // default values for the field.
'#open' => $items->status != $field_default_values[0]['status'],
            '#group' => 'advanced',
            '#attributes' => [
                'class' => [
                    'comment-' . Html::getClass($entity->getEntityTypeId()) . '-settings-form',
                ],
            ],
            '#attached' => [
                'library' => [
                    'comment/drupal.comment',
                ],
            ],
        ];
    }
    return $element;
}