CommentAjaxPager.php in Comments ajax pager 8

Namespace

Drupal\comment_ajax_pager\Page

File

src/Page/CommentAjaxPager.php

<?php

namespace Drupal\comment_ajax_pager\Page;

use Drupal\Core\Controller\ControllerBase;
use Drupal\Core\Ajax\AjaxResponse;
use Drupal\Core\Ajax\HtmlCommand;
use Drupal\Core\Ajax\AppendCommand;
use Drupal\Core\Ajax\InvokeCommand;
use Drupal\Core\Ajax\BeforeCommand;
class CommentAjaxPager extends ControllerBase {
  public static function ajax_pager() {
    $response = new AjaxResponse();
    if (!empty($_POST['ajax_pager'])) {
      $config = \Drupal::config('field.field.' . $_POST['ajax_pager']['entity_type'] . '.' . $_POST['ajax_pager']['bundle'] . '.' . $_POST['ajax_pager']['field_name'])
        ->get();
      if (!empty($config['settings']['per_page'])) {
        $config_entity_type = \Drupal::config('core.entity_view_display.' . $_POST['ajax_pager']['entity_type'] . '.' . $_POST['ajax_pager']['bundle'] . '.default')
          ->get();
        $pager_id = !empty($config_entity_type['content'][$_POST['ajax_pager']['field_name']]['settings']['pager_id']) ? $config_entity_type['content'][$_POST['ajax_pager']['field_name']]['settings']['pager_id'] : 0;
        $config = \Drupal::config('field.field.' . $_POST['ajax_pager']['entity_type'] . '.' . $_POST['ajax_pager']['bundle'] . '.' . $_POST['ajax_pager']['field_name'])
          ->get();

        // ---
        $mode = $config['settings']['default_mode'];
        $comments_per_page = $config['settings']['per_page'];
        $entity = \Drupal::entityTypeManager()
          ->getStorage($_POST['ajax_pager']['entity_type'])
          ->load($_POST['ajax_pager']['entity_id']);
        $viewBuilder = \Drupal::entityTypeManager()
          ->getViewBuilder('comment');
        $storage = \Drupal::entityTypeManager()
          ->getStorage('comment');
        $comments = $storage
          ->loadThread($entity, $_POST['ajax_pager']['field_name'], $mode, $comments_per_page, $pager_id);
        if ($comments) {
          $build = $viewBuilder
            ->viewMultiple($comments, 'full');
          $build['pager']['#type'] = 'pager';
          $entity_type = $entity
            ->getEntityType();
          $entity_type_id = $entity_type
            ->id();
          $handler = \Drupal::entityTypeManager()
            ->getRouteProviders($entity_type_id)['html'];
          $route_collection = $handler
            ->getRoutes($entity_type);
          $name = 'entity.' . $entity_type
            ->get('id') . '.canonical';
          $route = $route_collection
            ->get($name);
          $entity_url = $entity
            ->toURL();
          if ($route) {
            $build['pager']['#route_name'] = $route;
            $build['pager']['#route_parameters'] = $entity_url
              ->getRouteParameters();
          }
          if ($pager_id) {
            $build['pager']['#element'] = $pager_id;
          }
          if (empty($_POST['ajax_pager']['load_more'])) {
            $response
              ->addCommand(new HtmlCommand('[data-ajax_comment_pager="' . $entity
              ->id() . '"] .comments_ajax_pager_wrap', $build));
            $response
              ->addCommand(new AppendCommand('body', '<script>jQuery(\'html, body\').animate({ scrollTop: jQuery(\'[data-ajax_comment_pager="' . $entity
              ->id() . '"]\').offset().top-50 }, 500);</script>'));
          }
          else {
            $response
              ->addCommand(new InvokeCommand('[data-ajax_comment_pager="' . $entity
              ->id() . '"] .comment_load_more_pager', 'removeClass', [
              'ajax-load_more',
            ]));
            $response
              ->addCommand(new HtmlCommand('[data-ajax_comment_pager="' . $entity
              ->id() . '"] .comment_load_more_pager', \Drupal::service('renderer')
              ->render($build['pager'])));

            // ---
            unset($build['pager']);
            $response
              ->addCommand(new BeforeCommand('[data-ajax_comment_pager="' . $entity
              ->id() . '"] .comment_load_more_pager', \Drupal::service('renderer')
              ->render($build)));
          }
        }
      }
    }
    return $response;
  }

}

Classes

Name	Description
CommentAjaxPager