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<?php
/**
 * @file
 * Contains \Drupal\views\Plugin\Menu\Form\ViewsMenuLinkForm.
 */
namespace Drupal\views\Plugin\Menu\Form;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Menu\Form\MenuLinkDefaultForm;
/**
 * Provides a form to edit Views menu links.
 *
 * This provides the feature to edit the title and description, in contrast to
 * the default menu link form.
 *
 * @see \Drupal\views\Plugin\Menu\ViewsMenuLink
 */
class ViewsMenuLinkForm extends MenuLinkDefaultForm {
  /**
   * The edited views menu link.
   *
   * @var \Drupal\views\Plugin\Menu\ViewsMenuLink
   */
  protected $menuLink;
  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    // Put the title field first.
    $form['title'] = array(
      '#type' => 'textfield',
      '#title' => $this->t('Title'),
      // @todo Ensure that the view is not loaded with a localized title.
      //   https://www.drupal.org/node/2309507
      '#default_value' => $this->menuLink->getTitle(),
      '#weight' => -10,
    );
    $form['description'] = array(
      '#type' => 'textfield',
      '#title' => $this->t('Description'),
      '#description' => $this->t('Shown when hovering over the menu link.'),
      // @todo Ensure that the view is not loaded with a localized description.
      //   https://www.drupal.org/node/2309507
      '#default_value' => $this->menuLink->getDescription(),
      '#weight' => -5,
    );
    $form += parent::buildConfigurationForm($form, $form_state);
    $form['info']['#weight'] = -8;
    $form['path']['#weight'] = -7;
    $view = $this->menuLink->loadView();
    $id = $view->storage->id();
    $label = $view->storage->label();
    if ($this->moduleHandler->moduleExists('views_ui')) {
      $message = $this->t('This link is provided by the Views module. The path can be changed by editing the view <a href=":url">@label</a>', array(':url' => \Drupal::url('entity.view.edit_form', array('view' => $id)), '@label' => $label));
    }
    else {
      $message = $this->t('This link is provided by the Views module from view %label.', array('%label' => $label));
    }
    $form['info']['#title'] = $message;
    return $form;
  }
  /**
   * {@inheritdoc}
   */
  public function extractFormValues(array &$form, FormStateInterface $form_state) {
    $definition = parent::extractFormValues($form, $form_state);
    $definition['title'] = $form_state->getValue('title');
    $definition['description'] = $form_state->getValue('description');
    return $definition;
  }
}