layout_paragraphs-1.0.x-dev/modules/layout_paragraphs_permissions/layout_paragraphs_permissions.module

<?php

/**
 * @file
 * Contains Layout Paragraphs Permissions module.
 */

use Drupal\Core\Form\FormStateInterface;
use Drupal\layout_paragraphs\LayoutParagraphsLayout;

/**
 * Implements hook_preprocess_layout_paragraphs_builder_controls().
 */
function layout_paragraphs_permissions_preprocess_layout_paragraphs_builder_controls(&$variables) {
  foreach (['drag_handle', 'move_up', 'move_down'] as $key) {
    $variables['controls'][$key]['#access'] = layout_paragraphs_permissions_access($variables['layout_paragraphs_layout'], 'reorder');
  }
  $variables['controls']['duplicate_link']['#access'] = layout_paragraphs_permissions_access($variables['layout_paragraphs_layout'], 'duplicate');
}

/**
 * Implements hook_preprocess_layout_paragraphs_builder().
 */
function layout_paragraphs_permissions_preprocess_layout_paragraphs_builder(&$variables) {
  if (layout_paragraphs_permissions_access($variables['layout_paragraphs_layout'], 'reorder')->isForbidden()) {
    $variables['attributes']['class'][] = 'js-lpb-reordering-disabled';
    $variables['#attached']['library'][] = 'layout_paragraphs_permissions/disable_reorder';
  }
}

/**
 * Checks access for current user on provided layout for provided operation.
 *
 * @param \Drupal\layout_paragraphs\LayoutParagraphsLayout $layout_paragraphs_layout
 *   The layout.
 * @param string $operation
 *   The operation (i.e. "reorder" or "edit").
 *
 * @return \Drupal\Core\Access\AccessResultInterface
 *   The access.
 */
function layout_paragraphs_permissions_access(LayoutParagraphsLayout $layout_paragraphs_layout, string $operation) {
  $access_handler = Drupal::service('layout_paragraphs.builder_access');
  return $access_handler->access(
    Drupal::currentUser(),
    $layout_paragraphs_layout,
    $operation
  );
}

/**
 * Implements hook_form_FORM_ID_alter().
 */
function layout_paragraphs_permissions_form_layout_paragraphs_component_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  $form['layout_paragraphs']['#process'][] = 'layout_paragraphs_permissions_layout_plugin_form_process';
}

/**
 * Process callback to check permission for layout plugin forms.
 *
 * @param array $element
 *   The element.
 * @param \Drupal\Core\Form\FormStateInterface $form_state
 *   The form state.
 * @param array $complete_form
 *   The complete form array.
 *
 * @return array
 *   The processed element.
 */
function layout_paragraphs_permissions_layout_plugin_form_process(array $element, FormStateInterface $form_state, array $complete_form) {
  if (!empty($element['config']) && is_array($element['config'])) {
    $element['config']['#access'] = Drupal::currentUser()->hasPermission('edit layout paragraphs plugin config');
  }
  return $element;
}