function NumberWidget::formElement

Overrides WidgetInterface::formElement

File

core/lib/Drupal/Core/Field/Plugin/Field/FieldWidget/NumberWidget.php, line 68

Class

NumberWidget

Plugin implementation of the 'number' widget.

Namespace

Code

public function formElement(FieldItemListInterface $items, $delta, array $element, array &$form, FormStateInterface $form_state) {
    $value = isset($items[$delta]->value) ? $items[$delta]->value : NULL;
    $field_settings = $this->getFieldSettings();
    $element += [
        '#type' => 'number',
        '#default_value' => $value,
        '#placeholder' => $this->getSetting('placeholder'),
    ];
    // Set the step for floating point and decimal numbers.
    switch ($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']);
        $element['#field_prefix'] = FieldFilteredMarkup::create(array_pop($prefixes));
    }
    if ($field_settings['suffix']) {
        $suffixes = explode('|', $field_settings['suffix']);
        $element['#field_suffix'] = FieldFilteredMarkup::create(array_pop($suffixes));
    }
    return [
        'value' => $element,
    ];
}