public static function Textfield::valueCallback in Drupal 8

Same name and namespace in other branches

1. 9 core/lib/Drupal/Core/Render/Element/Textfield.php \Drupal\Core\Render\Element\Textfield::valueCallback()
2. 10 core/lib/Drupal/Core/Render/Element/Textfield.php \Drupal\Core\Render\Element\Textfield::valueCallback()

Determines how user input is mapped to an element's #value property.

Parameters

array $element: An associative array containing the properties of the element.

mixed $input: The incoming input to populate the form element. If this is FALSE, the element's default value should be returned.

\Drupal\Core\Form\FormStateInterface $form_state: The current state of the form.

Return value

mixed The value to assign to the element.

Overrides FormElement::valueCallback

2 calls to Textfield::valueCallback()

color_palette_color_value in core/modules/color/color.module

Determines the value for a palette color field.

TextfieldTest::testValueCallback in core/tests/Drupal/Tests/Core/Render/Element/TextfieldTest.php

@covers ::valueCallback

3 methods override Textfield::valueCallback()

EntityAutocomplete::valueCallback in core/lib/Drupal/Core/Entity/Element/EntityAutocomplete.php

Determines how user input is mapped to an element's #value property.

MachineName::valueCallback in core/lib/Drupal/Core/Render/Element/MachineName.php

Determines how user input is mapped to an element's #value property.

PathElement::valueCallback in core/lib/Drupal/Core/Render/Element/PathElement.php

Determines how user input is mapped to an element's #value property.

File

core/lib/Drupal/Core/Render/Element/Textfield.php, line 75

Class

Textfield

Provides a one-line text field form element.

Namespace

Drupal\Core\Render\Element

Code

public static function valueCallback(&$element, $input, FormStateInterface $form_state) {
  if ($input !== FALSE && $input !== NULL) {

    // This should be a string, but allow other scalars since they might be
    // valid input in programmatic form submissions.
    if (!is_scalar($input)) {
      $input = '';
    }
    return str_replace([
      "\r",
      "\n",
    ], '', $input);
  }
  return NULL;
}