public function NumberWidget::formElement

Implements Drupal\field\Plugin\Type\Widget\WidgetInterface::formElement().

Overrides WidgetInterface::formElement

File

drupal/core/modules/number/lib/Drupal/number/Plugin/field/widget/NumberWidget.php, line 49

Definition of Drupal\number\Plugin\field\widget\NumberWidget.

Class

NumberWidget

Plugin implementation of the 'number' widget.

Namespace

Code

public function formElement(array $items, $delta, array $element, $langcode, array &$form, array &$form_state) {
  $field = $this->field;
  $instance = $this->instance;
  $value = isset($items[$delta]['value']) ? $items[$delta]['value'] : NULL;
  $element += array(
    '#type' => 'number',
    '#default_value' => $value,
    '#placeholder' => $this
      ->getSetting('placeholder'),
  );

  // Set the step for floating point and decimal numbers.
  switch ($field['type']) {
    case 'number_decimal':
      $element['#step'] = pow(0.1, $field['settings']['scale']);
      break;
    case 'number_float':
      $element['#step'] = 'any';
      break;
  }

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

  // Add prefix and suffix.
  if (!empty($instance['settings']['prefix'])) {
    $prefixes = explode('|', $instance['settings']['prefix']);
    $element['#field_prefix'] = field_filter_xss(array_pop($prefixes));
  }
  if (!empty($instance['settings']['suffix'])) {
    $suffixes = explode('|', $instance['settings']['suffix']);
    $element['#field_suffix'] = field_filter_xss(array_pop($suffixes));
  }
  return array(
    'value' => $element,
  );
}