Email.php in Drupal 8
Same filename in this branch
Same filename and directory in other branches
Namespace
Drupal\Core\Render\ElementFile
core/lib/Drupal/Core/Render/Element/Email.phpView source
<?php
namespace Drupal\Core\Render\Element;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;
/**
* Provides a form input element for entering an email address.
*
* Properties:
* - #default_value: An RFC-compliant email address.
* - #size: The size of the input element in characters.
* - #pattern: A string for the native HTML5 pattern attribute.
*
* Example usage:
* @code
* $form['email'] = [
* '#type' => 'email',
* '#title' => $this->t('Email'),
* '#pattern' => '*@example.com',
* ];
* @endcode
*
* @see \Drupal\Core\Render\Element\Textfield
*
* @FormElement("email")
*/
class Email extends FormElement {
/**
* Defines the max length for an email address
*
* The maximum length of an email address is 254 characters. RFC 3696
* specifies a total length of 320 characters, but mentions that
* addresses longer than 256 characters are not normally useful. Erratum
* 1690 was then released which corrected this value to 254 characters.
* @see http://tools.ietf.org/html/rfc3696#section-3
* @see http://www.rfc-editor.org/errata_search.php?rfc=3696&eid=1690
*/
const EMAIL_MAX_LENGTH = 254;
/**
* {@inheritdoc}
*/
public function getInfo() {
$class = get_class($this);
return [
'#input' => TRUE,
'#size' => 60,
'#maxlength' => self::EMAIL_MAX_LENGTH,
'#autocomplete_route_name' => FALSE,
'#process' => [
[
$class,
'processAutocomplete',
],
[
$class,
'processAjaxForm',
],
[
$class,
'processPattern',
],
],
'#element_validate' => [
[
$class,
'validateEmail',
],
],
'#pre_render' => [
[
$class,
'preRenderEmail',
],
],
'#theme' => 'input__email',
'#theme_wrappers' => [
'form_element',
],
];
}
/**
* Form element validation handler for #type 'email'.
*
* Note that #maxlength and #required is validated by _form_validate() already.
*/
public static function validateEmail(&$element, FormStateInterface $form_state, &$complete_form) {
$value = trim($element['#value']);
$form_state
->setValueForElement($element, $value);
if ($value !== '' && !\Drupal::service('email.validator')
->isValid($value)) {
$form_state
->setError($element, t('The email address %mail is not valid.', [
'%mail' => $value,
]));
}
}
/**
* Prepares a #type 'email' render element for input.html.twig.
*
* @param array $element
* An associative array containing the properties of the element.
* Properties used: #title, #value, #description, #size, #maxlength,
* #placeholder, #required, #attributes.
*
* @return array
* The $element with prepared variables ready for input.html.twig.
*/
public static function preRenderEmail($element) {
$element['#attributes']['type'] = 'email';
Element::setAttributes($element, [
'id',
'name',
'value',
'size',
'maxlength',
'placeholder',
]);
static::setAttributes($element, [
'form-email',
]);
return $element;
}
}