paragraphs_inline_entity_form-8.x-1.x-dev/src/Plugin/EntityBrowser/Widget/ParagraphEntityForm.php

<?php

namespace Drupal\paragraphs_inline_entity_form\Plugin\EntityBrowser\Widget;

use Drupal\Core\Form\FormStateInterface;
use Drupal\entity_browser_entity_form\Plugin\EntityBrowser\Widget\EntityForm;

/**
 * A wrapper for EntityForm to provide a two step form where on the first step
 * the user can select the Entity type and on the second step, to create content.
 *
 * @EntityBrowserWidget(
 *   id = "paragraph_entity_form",
 *   label = @Translation("Paragraph form"),
 *   description = @Translation("Provides entity form widget."),
 *   auto_select = FALSE
 * )
 */
class ParagraphEntityForm extends EntityForm {

  /**
   * {@inheritdoc}
   */
  public function defaultConfiguration() {
    return [
      'entity_type' => 'paragraph',
      'submit_text' => $this->t('Save paragraph'),
    ] + parent::defaultConfiguration();
  }

  /**
   * {@inheritdoc}
   */
  public function buildConfigurationForm(array $form, FormStateInterface $form_state) {
    $form = parent::buildConfigurationForm($form, $form_state);

    $form['bundle'] = [
      '#type' => 'container',
      'select' => [
        '#type' => 'select',
        '#title' => $this->t('Bundle'),
        '#options' => ['Paragraph Selector'],
      ],
      '#attributes' => ['id' => 'bundle-wrapper-' . $this->uuid()],
    ];

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function getForm(array &$original_form, FormStateInterface $form_state, array $additional_widget_parameters) {
    if (empty($this->configuration['entity_type']) || empty($this->configuration['form_mode'])) {
      return ['#markup' => $this->t('The settings for %label widget are not configured correctly.', ['%label' => $this->label()])];
    }

    // Check if we need to show the content type selector form or the entity create form.
    if (!empty($form_state->getUserInput()['selected_bundle'])) {
      $this->configuration['bundle'] = $form_state->getUserInput()['selected_bundle'];
    }

    if ($this->configuration['bundle'] == '0') {
      $form = $this->entitySelectorForm($original_form, $form_state, $additional_widget_parameters);
      return $form;
    }

    if ($form_state->has(['entity_browser', 'widget_context'])) {
      $this->handleWidgetContext($form_state->get(['entity_browser', 'widget_context']));
    }

    $form = parent::getForm($original_form, $form_state, $additional_widget_parameters);

    $form['#submit'] = [
      ['Drupal\inline_entity_form\ElementSubmit', 'trigger'],
    ];
    $form['actions'] = [
      '#type' => 'actions',
      'submit' => [
        '#type' => 'submit',
        '#value' => $this->configuration['submit_text'],
        '#eb_widget_main_submit' => (empty($form_state->getValues())) ? FALSE : TRUE,
        '#attributes' => ['class' => ['is-entity-browser-submit']],
        '#button_type' => 'primary',
      ],
    ];
    $form['actions']['submit']['#ief_submit_trigger'] = TRUE;
    $form['actions']['submit']['#ief_submit_trigger_all'] = TRUE;
    $form['#attached']['drupalSettings']['entity_browser_widget']['auto_select'] = TRUE;
    $form['inline_entity_form'] = [
      '#type' => 'inline_entity_form',
      '#op' => 'add',
      '#entity_type' => $this->configuration['entity_type'],
      '#bundle' => $this->configuration['bundle'],
      '#form_mode' => $this->configuration['form_mode'],
    ];

    return $form;
  }

  /**
   * {@inheritdoc}
   */
  public function entitySelectorForm(array &$original_form, FormStateInterface $form_state, array $additional_widget_parameters) {
    $path_parts = array_values(array_filter($additional_widget_parameters['path_parts']));

    $form['#prefix'] = '<div id="paragraphs-wysiwyg">';
    $form['#suffix'] = '</div>';
    $form['selected_bundle'] = [
      '#type' => 'hidden',
      '#value' => '',
    ];
    $form['actions'] = [
      '#type' => 'actions',
    ];
    $form['#attached']['library'][] = 'paragraphs_inline_entity_form/dialog';

    if ($path_parts[0] == 'entity-embed') {
      $embed_button = $this->entityTypeManager->getStorage('embed_button')->load($path_parts[3]);
    }
    $allowed_bundles = $embed_button->getTypeSetting('bundles');
    $bundles = $this->getAllowedBundles($allowed_bundles);
    $paragraphs_type_storage = $this->entityTypeManager->getStorage('paragraphs_type');
    $default_icon = \Drupal::service('extension.list.module')->getPath('paragraphs_inline_entity_form') . '/images/paragraph_thumb.png';
    foreach ($bundles as $bundle => $label) {
      $icon_url = $default_icon;
      if ($paragraphs_type_storage->load($bundle)->getIconFile()) {
        $style = $this->entityTypeManager->getStorage('image_style')->load('thumbnail');
        $path = $paragraphs_type_storage->load($bundle)->getIconFile()->getFileUri();
        $icon_url = $style->buildUrl($path);
      }

      $form['items'][$bundle] = [
        '#type' => 'image_button',
        '#prefix' => '<div class="paragraphs-wysiwyg-add-type">',
        '#suffix' => '<span>' . $label . '</span></div>',
        '#src' => $icon_url,
        '#value' => $label,
        '#attributes' => [
          'data-paragraph-bundle' => $bundle,
        ],
      ];
    }

    return $form;
  }

  /**
   * Returns a list of allowed Paragraph bundles to add.
   *
   * @param array $allowed_bundles
   *   An array with Paragraph bundles which are allowed to add.
   *
   * @return array
   *   Array with allowed Paragraph bundles.
   */
  protected function getAllowedBundles($allowed_bundles = NULL) {
    $bundles = $this->entityTypeBundleInfo->getBundleInfo('paragraph');
    if (is_array($allowed_bundles) && count($allowed_bundles)) {
      // Preserve order of allowed bundles setting.
      $allowed_bundles_order = array_flip($allowed_bundles);
      // Only keep allowed bundles.
      $bundles = array_intersect_key(
        array_replace($allowed_bundles_order, $bundles),
        $allowed_bundles_order
      );
    }

    // Enrich bundles with their label.
    foreach ($bundles as $bundle => $props) {
      $label = empty($props['label']) ? ucfirst($bundle) : $props['label'];
      $bundles[$bundle] = $label;
    }

    return $bundles;
  }

}