message_thread-8.x-1.x-dev/src/Controller/MessageThreadController.php

<?php

namespace Drupal\message_thread\Controller;

use Drupal\Core\Url;
use Drupal\Core\Controller\ControllerBase;
use Drupal\message_thread\Entity\MessageThread;
use Drupal\Core\DependencyInjection\ContainerInjectionInterface;
use Drupal\message\Entity\Message;
use Drupal\Component\Utility\Xss;
use Drupal\views\Views;

/**
 * Controller for adding messages.
 */
class MessageThreadController extends ControllerBase implements ContainerInjectionInterface {

  /**
   * The access handler object.
   *
   * @var \Drupal\Core\Entity\EntityAccessControlHandlerInterface
   */
  private $accessHandler;

  /**
   * The entity manager service.
   *
   * @var \Drupal\Core\Entity\EntityManagerInterface
   */
  protected $entityManager;

  /**
   * Constructs a MessageUiController object.
   */
  public function __construct() {
    $this->entityManager = \Drupal::service('entity_type.manager');
    $this->accessHandler = \Drupal::service('entity_type.manager')->getAccessControlHandler('message_thread');
  }

  /**
   * Generates output of all message template with permission to create.
   *
   * @return array|\Symfony\Component\HttpFoundation\RedirectResponse
   *   A render array for a list of the message templates that can be added;
   *   however, if there is only one message template defined for the site, the
   *   function will return a RedirectResponse to the message.add page for that
   *   one message template.
   */
  public function addPage() {
    $content = [];
    // Only use message templates the user has access to.
    foreach (\Drupal::service('entity_type.manager')->getStorage('message_thread_template')->loadMultiple() as $template) {
      $access = \Drupal::service('entity_type.manager')
        ->getAccessControlHandler('message_thread')
        ->createAccess($template->id(), NULL, [], TRUE);
      if ($access->isAllowed()) {
        $content[$template->id()] = $template;
      }
    }

    // Bypass the message/add listing if only one message template is available.
    if (count($content) == 1) {
      $template = array_shift($content);
      return $this->redirect('message_thread.add', ['message_thread_template' => $template->id()]);
    }

    // Return build array.
    if (!empty($content)) {
      return ['#theme' => 'message_thread_add_list', '#content' => $content];
    }
    else {
      $url = Url::fromRoute('message_thread.template_add');
      return ['#markup' => 'There are no messages templates. You can create a new message template <a href="/' . $url->getInternalPath() . '">here</a>.'];
    }
  }

  /**
   * Generates form output for adding a new message_thread_template.
   *
   * @param string $message_thread_template
   *   The message template name.
   *
   * @return array
   *   An array as expected by drupal_render().
   */
  public function add($message_thread_template) {
    $message_thread = MessageThread::create(['template' => $message_thread_template]);
    $form = $this->entityFormBuilder()->getForm($message_thread);

    return $form;
  }

  /**
   * Generates form output for adding a new message entity inside a thread.
   *
   * @param string $message_template
   *   The message template name.
   * @param string $message_thread
   *   The message thread id.
   *
   * @return array
   *   An array as expected by drupal_render().
   */
  public function reply($message_template, $message_thread) {
    $message = Message::create(['template' => $message_template]);
    $form = $this->entityFormBuilder()->getForm($message);

    $form['thread_id'] = [
      '#type' => 'hidden',
      '#value' => $message_thread,
    ];

    foreach (array_keys($form['actions']) as $action) {
      if ($action != 'preview' && isset($form['actions'][$action]['#type']) && $form['actions'][$action]['#type'] === 'submit') {
        unset($form['actions'][$action]['#submit']);
        $form['actions'][$action]['#submit'][] = 'message_thread_add_message_form_submit';
      }
    }
    unset($form['#submit']);

    return $form;
  }

  /**
   * Generates form output for deleting of multiple message entities.
   *
   * @return array
   *   An array as expected by drupal_render().
   */
  public function deleteMultiple() {
    // @todo - create the path corresponding to below.
    // From devel module - admin/config/development/message_delete_multiple.
    // @todo pass messages to be deleted in args?
    $build = \Drupal::formBuilder()->getForm('Drupal\message_thread\Form\DeleteMultiple');

    return $build;
  }

  /**
   * Generates output of all threads belonging to the current user.
   *
   * @return array
   *   A render array for a list of the messages.
   */
  public function inBox() {
    // Get threads that the current user belongs to.
    $view_name = 'conversations';
    $display_id = 'block_1';
    $argument = \Drupal::currentUser()->id();
    $view = Views::getView($view_name);
    // Someone may have deleted the View.
    if (!is_object($view)) {
      return [
        '#markup' => t('The View for message thread inbox has been deleted.'),
      ];
    }
    // No access.
    if (!$view->access($display_id)) {
      return [
        '#markup' => t('You do not have access to this resource.'),
      ];
    }

    $view->setDisplay($display_id);

    if ($argument) {
      $arguments = [$argument];
      if (preg_match('/\//', $argument)) {
        $arguments = explode('/', $argument);
      }
      $view->setArguments($arguments);
    }

    $view->preExecute();
    $view->execute($display_id);
    $message_threads = $view->buildRenderable($display_id);

    // Return build array.
    if (!empty($message_threads)) {
      return $message_threads;
    }
    else {
      $url = Url::fromRoute('message.template_add');
      return [
        '#markup' => 'You have no messages in your inbox. Try sending a message to someone <a href="/' .
        $url->getInternalPath() . '">sending a message to someone</a>.',
      ];
    }
  }

  /**
   * Message thread title.
   *
   * @param \Drupal\message_thread\Entity\MessageThread $message_thread
   *   Message thread object.
   *
   * @return array|string
   *   Markup.
   */
  public function messageThreadTitle(MessageThread $message_thread = NULL) {
    return $message_thread ? ['#markup' => $message_thread->get('field_thread_title')->getValue()[0]['value'], '#allowed_tags' => Xss::getHtmlTagList()] : '';
  }

  /**
   * Generates form output for adding a new message entity of message_template.
   *
   * @return array
   *   An array as expected by drupal_render().
   */
  public function sent() {
    $view_name = 'conversations';
    $display_id = 'block_2';
    $argument = \Drupal::currentUser()->id();
    $view = Views::getView($view_name);
    // Someone may have deleted the View.
    if (!is_object($view)) {
      return [
        '#markup' => t('The View for message thread sent has been deleted.'),
      ];
    }
    // No access.
    if (!$view->access($display_id)) {
      return [
        '#markup' => t('You do not have access to this resource.'),
      ];
    }

    $view->setDisplay($display_id);

    if ($argument) {
      $arguments = [$argument];
      if (preg_match('/\//', $argument)) {
        $arguments = explode('/', $argument);
      }
      $view->setArguments($arguments);
    }

    $view->preExecute();
    $view->execute($display_id);

    $message_threads = $view->buildRenderable($display_id);

    // Return build array.
    if (!empty($message_threads)) {
      return $message_threads;
    }
    else {
      $url = Url::fromRoute('message.template_add');
      return [
        '#markup' => 'You have no messages in your inbox. Try sending a message to someone <a href="/' . $url->getInternalPath() . '">sending a message to someone</a>.',
      ];
    }
  }

}