entityqueue_buttons-1.0.0/entityqueue_buttons.module

<?php

/**
 * @file
 */

use Drupal\Core\Entity\Display\EntityViewDisplayInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Link;
use Drupal\Core\Url;

/**
 * Implements hook_entity_view().
 */
function entityqueue_buttons_entity_view(array &$build, EntityInterface $entity, EntityViewDisplayInterface $display, $view_mode) {
  if ($entity->getEntityTypeId() !== 'node' || $view_mode !== 'full') {
    return;
  }

  /** @var \Drupal\entityqueue_buttons\EntityQueueButtonsManager $queue_manager */
  $queue_manager = \Drupal::service('entityqueue_buttons.queue_manager');
  $enabled_queues = $queue_manager->getEnabledQueues($entity->bundle());

  if (empty($enabled_queues)) {
    return;
  }

  $links = [];
  $cache_tags = [];

  foreach ($enabled_queues as $queue_id) {
    // Check if user has permission to manipulate this queue.
    if (!\Drupal::currentUser()->hasPermission('manipulate ' . $queue_id . ' entityqueue')) {
      continue;
    }

    $queue = \Drupal::entityTypeManager()->getStorage('entity_queue')->load($queue_id);
    if (!$queue) {
      continue;
    }

    // Add cache tags for the queue and its subqueue.
    $cache_tags[] = 'entity_queue:' . $queue_id;
    $subqueue = $queue_manager->getSubqueue($queue_id);
    if ($subqueue) {
      $cache_tags = array_merge($cache_tags, $subqueue->getCacheTags());
    }

    $is_queued = $queue_manager->isItemInQueue($queue_id, $entity->id());

    $operation = $is_queued ? 'remove' : 'add';
    $label = $is_queued ? t('Remove from @queue', ['@queue' => $queue->label()]) : t('Add to @queue', ['@queue' => $queue->label()]);

    $url = Url::fromRoute('entityqueue_buttons.queue_operation', [
      'node' => $entity->id(),
      'queue' => $queue_id,
      'operation' => $operation,
    ]);

    $url->setOption('attributes', [
      'class' => ['use-ajax', 'entityqueue-button', "entityqueue-$operation"],
    ]);

    $links[$queue_id] = Link::fromTextAndUrl($label, $url)->toRenderable();
  }

  if (!empty($links)) {
    $build['entityqueue_buttons'] = [
      '#theme' => 'entityqueue_buttons',
      '#links' => $links,
      '#attached' => [
        'library' => ['entityqueue_buttons/buttons'],
      ],
      '#weight' => 100,
      '#cache' => [
        'contexts' => ['user.permissions'],
        'tags' => $cache_tags,
      ],
    ];
  }
}

/**
 * Implements hook_theme().
 */
function entityqueue_buttons_theme() {
  return [
    'entityqueue_buttons' => [
      'variables' => [
        'links' => [],
      ],
    ],
  ];
}