Url.php in Zircon Profile 8

Contains \Drupal\Core\Render\Element\Url.

Namespace

Drupal\Core\Render\Element

File

core/lib/Drupal/Core/Render/Element/Url.php

<?php

/**
 * @file
 * Contains \Drupal\Core\Render\Element\Url.
 */
namespace Drupal\Core\Render\Element;

use Drupal\Component\Utility\UrlHelper;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Render\Element;

/**
 * Provides a form element for input of a URL.
 *
 * Properties:
 * - #default_value: A valid URL string.
 *
 * Usage example:
 * @code
 * $form['homepage'] = array(
 *   '#type' => 'url',
 *   '#title' => t('Home Page'),
 *   '#size' => 30,
 *   ...
 * );
 * @endcode
 *
 * @see \Drupal\Core\Render\Element\Textfield
 *
 * @FormElement("url")
 */
class Url extends FormElement {

  /**
   * {@inheritdoc}
   */
  public function getInfo() {
    $class = get_class($this);
    return array(
      '#input' => TRUE,
      '#size' => 60,
      '#maxlength' => 255,
      '#autocomplete_route_name' => FALSE,
      '#process' => array(
        array(
          $class,
          'processAutocomplete',
        ),
        array(
          $class,
          'processAjaxForm',
        ),
        array(
          $class,
          'processPattern',
        ),
      ),
      '#element_validate' => array(
        array(
          $class,
          'validateUrl',
        ),
      ),
      '#pre_render' => array(
        array(
          $class,
          'preRenderUrl',
        ),
      ),
      '#theme' => 'input__url',
      '#theme_wrappers' => array(
        'form_element',
      ),
    );
  }

  /**
   * Form element validation handler for #type 'url'.
   *
   * Note that #maxlength and #required is validated by _form_validate() already.
   */
  public static function validateUrl(&$element, FormStateInterface $form_state, &$complete_form) {
    $value = trim($element['#value']);
    $form_state
      ->setValueForElement($element, $value);
    if ($value !== '' && !UrlHelper::isValid($value, TRUE)) {
      $form_state
        ->setError($element, t('The URL %url is not valid.', array(
        '%url' => $value,
      )));
    }
  }

  /**
   * Prepares a #type 'url' 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 $element with prepared variables ready for input.html.twig.
   */
  public static function preRenderUrl($element) {
    $element['#attributes']['type'] = 'url';
    Element::setAttributes($element, array(
      'id',
      'name',
      'value',
      'size',
      'maxlength',
      'placeholder',
    ));
    static::setAttributes($element, array(
      'form-url',
    ));
    return $element;
  }

}

Classes

Name	Description
Url	Provides a form element for input of a URL.