DeleteComponentForm.php in Layout Paragraphs 2.0.x

Namespace

Drupal\layout_paragraphs\Form

File

src/Form/DeleteComponentForm.php

<?php

namespace Drupal\layout_paragraphs\Form;

use Drupal\Core\Form\FormBase;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\RemoveCommand;
use Drupal\Core\Ajax\CloseDialogCommand;
use Drupal\Core\Form\FormStateInterface;
use Drupal\layout_paragraphs\Ajax\LayoutParagraphsEventCommand;
use Drupal\layout_paragraphs\DialogHelperTrait;
use Drupal\layout_paragraphs\LayoutParagraphsLayout;
use Drupal\layout_paragraphs\LayoutParagraphsLayoutRefreshTrait;
use Symfony\Component\DependencyInjection\ContainerInterface;

/**
 * Class DeleteComponentForm.
 */
class DeleteComponentForm extends FormBase {
  use LayoutParagraphsLayoutRefreshTrait;
  use DialogHelperTrait;

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

  /**
   * The uuid of the component to delete.
   *
   * @var string
   */
  protected $componentUuid;

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

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

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

  /**
   * {@inheritDoc}
   */
  public function buildForm(array $form, FormStateInterface $form_state, LayoutParagraphsLayout $layout_paragraphs_layout = NULL, string $component_uuid = NULL) {
    $this
      ->setLayoutParagraphsLayout($layout_paragraphs_layout);
    $this->componentUuid = $component_uuid;
    $component = $this->layoutParagraphsLayout
      ->getComponentByUuid($this->componentUuid);
    $type = $component
      ->getEntity()
      ->getParagraphType()
      ->label();
    $form['#title'] = $this
      ->t('Delete @type', [
      '@type' => $type,
    ]);
    $form['confirm'] = [
      '#markup' => $this
        ->t('Really delete this @type? There is no undo.', [
        '@type' => $type,
      ]),
    ];
    $form['actions'] = [
      '#type' => 'actions',
      'submit' => [
        '#type' => 'submit',
        '#value' => $this
          ->t('Delete'),
        '#ajax' => [
          'callback' => '::deleteComponent',
        ],
      ],
      'cancel' => [
        '#type' => 'button',
        '#value' => $this
          ->t('Cancel'),
        '#ajax' => [
          'callback' => '::closeForm',
        ],
      ],
    ];
    return $form;
  }

  /**
   * {@inheritDoc}
   *
   * Deletes the component and saves the layout.
   */
  public function submitForm(array &$form, FormStateInterface $form_state) {
    $this->layoutParagraphsLayout
      ->deleteComponent($this->componentUuid, TRUE);
    $this->tempstore
      ->set($this->layoutParagraphsLayout);
  }

  /**
   * Ajax callback - deletes component and closes the form.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state object.
   */
  public function deleteComponent(array $form, FormStateInterface $form_state) {
    $response = new AjaxResponse();
    $response
      ->addCommand(new CloseDialogCommand($this
      ->dialogSelector($this->layoutParagraphsLayout)));
    if ($this
      ->needsRefresh()) {
      return $this
        ->refreshLayout($response);
    }
    $response
      ->addCommand(new RemoveCommand('[data-uuid="' . $this->componentUuid . '"]'));
    $response
      ->addCommand(new LayoutParagraphsEventCommand($this->layoutParagraphsLayout, $this->componentUuid, 'component:delete'));
    return $response;
  }

  /**
   * Ajax callback - closes the form.
   *
   * @param array $form
   *   The form array.
   * @param \Drupal\Core\Form\FormStateInterface $form_state
   *   The form state object.
   */
  public function closeForm(array $form, FormStateInterface $form_state) {
    $response = new AjaxResponse();
    $response
      ->addCommand($this
      ->closeDialogCommand($this->layoutParagraphsLayout));
    return $response;
  }

}

Classes

Name	Description
DeleteComponentForm	Class DeleteComponentForm.