LayoutParagraphsBuilderForm.php in Layout Paragraphs 2.0.x

Namespace

Drupal\layout_paragraphs\Form

File

src/Form/LayoutParagraphsBuilderForm.php

<?php

namespace Drupal\layout_paragraphs\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Component\Utility\Html;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\MessageCommand;
use Drupal\Core\Ajax\ReplaceCommand;
use Drupal\Core\Form\FormStateInterface;
use Drupal\layout_paragraphs\LayoutParagraphsLayout;
use Symfony\Component\DependencyInjection\ContainerInterface;
use Drupal\layout_paragraphs\LayoutParagraphsLayoutTempstoreRepository;

/**
 * Class LayoutParagraphsBuilderForm.
 *
 * Builds a Layout Paragraphs Builder form with save / cancel buttons
 * for saving the host entity.
 */
class LayoutParagraphsBuilderForm extends FormBase {

  /**
   * A layout paragraphs layout object.
   *
   * @var \Drupal\layout_paragraphs\LayoutParagraphsLayout
   */
  protected $layoutParagraphsLayout;

  /**
   * The layout paragraphs layout tempstore service.
   *
   * @var \Drupal\layout_paragraphs\LayoutParagraphsLayoutTempstoreRepository
   */
  protected $tempstore;

  /**
   * {@inheritDoc}
   */
  public function getFormId() {
    return 'layout_paragraphs_builder_form';
  }

  /**
   * {@inheritDoc}
   */
  public function __construct(LayoutParagraphsLayoutTempstoreRepository $tempstore) {
    $this->tempstore = $tempstore;
  }

  /**
   * {@inheritDoc}
   */
  public static function create(ContainerInterface $container) {
    return new static($container
      ->get('layout_paragraphs.tempstore_repository'));
  }

  /**
   * Builds the layout paragraphs builder form.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state object.
   * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout $layout_paragraphs_layout
   *   The layout paragraphs layout object.
   */
  public function buildForm(array $form, FormStateInterface $form_state, LayoutParagraphsLayout $layout_paragraphs_layout = NULL) {
    $this->layoutParagraphsLayout = $layout_paragraphs_layout;
    $form['layout_paragraphs_builder_ui'] = [
      '#type' => 'layout_paragraphs_builder',
      '#layout_paragraphs_layout' => $this->layoutParagraphsLayout,
    ];
    $form['#attributes']['data-lpb-form-id'] = Html::getId($this->layoutParagraphsLayout
      ->id());
    $form['actions'] = [
      '#type' => 'actions',
      'submit' => [
        '#type' => 'submit',
        '#value' => $this
          ->t('Save'),
        '#ajax' => [
          'callback' => '::save',
        ],
        '#attributes' => [
          'class' => [
            'button--primary',
          ],
        ],
      ],
      'close' => [
        '#type' => 'button',
        '#value' => $this
          ->t('Close'),
        '#ajax' => [
          'callback' => '::close',
        ],
      ],
    ];
    return $form;
  }

  /**
   * Ajax callback.
   *
   * Closes the builder and returns the rendered layout.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state.
   *
   * @return \Drupal\Core\Ajax\AjaxResponse
   *   An ajax command.
   */
  public function close(array $form, FormStateInterface $form_state) {
    $this->tempstore
      ->delete($this->layoutParagraphsLayout);
    $view_mode = $this->layoutParagraphsLayout
      ->getSetting('reference_field_view_mode', 'default');
    $rendered_layout = $this->layoutParagraphsLayout
      ->getParagraphsReferenceField()
      ->view($view_mode);
    $response = new AjaxResponse();
    $response
      ->addCommand(new ReplaceCommand('[data-lpb-form-id="' . $form['#attributes']['data-lpb-form-id'] . '"]', $rendered_layout));
    return $response;
  }

  /**
   * Ajax callback.
   *
   * Displays a message when the entity is saved.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state.
   *
   * @return \Drupal\Core\Ajax\AjaxResponse
   *   An ajax command.
   */
  public function save(array $form, FormStateInterface $form_state) {
    $entity = $this->layoutParagraphsLayout
      ->getEntity();
    $response = new AjaxResponse();
    $t_args = [
      '@type' => $entity
        ->getEntityType()
        ->getLabel(),
      '%title' => $entity
        ->toLink()
        ->toString(),
    ];
    $response
      ->addCommand(new MessageCommand($this
      ->t('@type %title has been updated.', $t_args)));
    $response
      ->addCommand(new ReplaceCommand('[data-lpb-form-id="' . $form['#attributes']['data-lpb-form-id'] . '"]', $form));
    return $response;
  }

  /**
   * {@inheritDoc}
   *
   * Saves the layout to its parent entity.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state object.
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $entity = $this->layoutParagraphsLayout
      ->getEntity();
    $field_name = $this->layoutParagraphsLayout
      ->getFieldName();
    $entity->{$field_name} = $this->layoutParagraphsLayout
      ->getParagraphsReferenceField();
    $entity
      ->save();
    $this->layoutParagraphsLayout
      ->setParagraphsReferenceField($entity->{$field_name});
    $this->tempstore
      ->set($this->layoutParagraphsLayout);
  }

}

Classes

Name	Description
LayoutParagraphsBuilderForm	Class LayoutParagraphsBuilderForm.