gistfile1.txt

<?php

/**
 * @file
 * Contains \Drupal\comment_timer\Plugin\Field\FieldWidget\NumberWidget.
 */

namespace Drupal\comment_timer\Field\Plugin\Field\FieldWidget;

use Drupal\Core\Field\FieldItemListInterface;
use Drupal\Core\Field\FieldDefinitionInterface;
use Drupal\Core\Field\WidgetBase;
use Drupal\Core\Form\FormStateInterface;

/**
 * Plugin implementation of the 'comment_timer' widget.
 *
 * @FieldWidget(
 *   id = "comment_timer",
 *   label = @Translation("Comment Timer"),
 *   field_types = {
 *     "integer"
 *   }
 * )
 */

class CommentTimerWidget extends WidgetBase {

  /**
   * {@inheritdoc}
   */
  public static function isApplicable(FieldDefinitionInterface $field_definition) {
    return ($field_definition->getTargetEntityTypeID() === 'comment');
  }

  public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    // $element += array(
    //   '#type' => 'number',
    //   '#default_value' => $value,
    //   '#placeholder' => $this->getSetting('placeholder'),
    //   '#attached' => array(
    //     'library' => array(
    //       'comment_timer/comment_timer'
    //     )
    //   )
    // );

    $element += array(
      '#type' => 'fieldset',
      '#tree' => TRUE
    );

    // Set the step for floating point and decimal numbers.
    switch ($this->fieldDefinition->getType()) {
      case 'decimal':
        $element['#step'] = pow(0.1, $field_settings['scale']);
        break;

      case 'float':
        $element['#step'] = 'any';
        break;
    }

    // Set minimum and maximum.
    if (is_numeric($field_settings['min'])) {
      $element['#min'] = $field_settings['min'];
    }
    if (is_numeric($field_settings['max'])) {
      $element['#max'] = $field_settings['max'];
    }

    // Add prefix and suffix.
    if ($field_settings['prefix']) {
      $prefixes = explode('|', $field_settings['prefix']);
      $element['#field_prefix'] = $this->fieldFilterXss(array_pop($prefixes));
    }
    if ($field_settings['suffix']) {
      $suffixes = explode('|', $field_settings['suffix']);
      $element['#field_suffix'] = $this->fieldFilterXss(array_pop($suffixes));
    }

    return array('value' => $element);
  }

}