stanford_news.module

<?php

/**
 * @file
 * stanford_news.module
 */

use Drupal\Component\Utility\Html;
use Drupal\views\ViewExecutable;
use Drupal\node\NodeInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Component\Utility\UrlHelper;

/**
 * Implements hook_theme().
 */
function stanford_news_theme() {
  return [
    'field__node__su_news_topics' => [
      'template' => 'field/field--node--su-news-topics',
      'base hook' => 'field'
    ],
    'field__node__su_news_dek' => [
      'template' => 'field/field--node--su-news-dek--stanford-news',
      'base hook' => 'field'
    ],
    'signup_block' => [
      'variables' => [
        'configuration' => [],
      ],
      'template' => 'block/signup-block',
    ],
    'block__menu_block__news_topics' => [
      'template' => 'block/block--menu-block--news-topics',
      'base hook' => 'block'
    ]
  ];
}

/**
 * Implements hook_preprocess_block().
 */
function stanford_news_preprocess_block(&$variables) {

  // Attach Library to the signup block wherever it goes.
  if (!empty($variables['elements']['#id'])) {
    if ($variables['elements']['#id'] == 'newslettersignup') {
      $variables['#attached']['library'][] = 'stanford_news/newsletter_signup';
    }
  }

  // Attach the css to the topics menu.
  if ($variables['base_plugin_id'] == "menu_block" && $variables['derivative_plugin_id'] == "news-topics") {
    $variables['#attached']['library'][] = "stanford_news/news_list";
  }

}

/**
 * Implements hook_views_pre_render().
 */
function stanford_news_views_pre_render(ViewExecutable $view) {
  if (isset($view) && ($view->storage->id() == 'stanford_news')) {
    $view->element['#attached']['library'][] = 'stanford_news/news_list';
  }
}

/**
 * Implements hook_preprocess_node().
 */
function stanford_news_page_attachments(array &$attachments) {
  // Get the node from the route.
  $node = \Drupal::routeMatch()->getParameter('node');

  // Not a node.. Then just continue.
  if (!$node instanceof NodeInterface) {
    return;
  }

  // Check for our type and add library if a match.
  if ($node->getType() == "stanford_news") {
    $attachments['#attached']['library'][] = 'stanford_news/news_node';
  }
}

/**
 * Implements hook_ENTITY_TYPE_presave().
 */
function stanford_news_node_presave(EntityInterface $entity) {
  $rabbit_hole = \Drupal::config('rabbit_hole.behavior_settings.node_type_' . $entity->bundle());
  $token_service = \Drupal::service('token');

  // When the source field is filled out on a news item we want to set the
  // redirect options so it doesn't get indexed.
  if ($rabbit_hole && $entity->bundle() == "stanford_news") {
    /** @var \Drupal\Core\Utility\Token $token_service */
    $target = $token_service->replace("[node:su_news_source:uri]", ['node' => $entity]);

    // Check if the token that was provided is actually a url. If it is, then we
    // can set the rabbit hole action to redirect to that url.
    if (is_string($target) && UrlHelper::isValid($target, TRUE)) {
      $entity->set('rh_action', 'page_redirect');
      $entity->set('rh_redirect', $target);
      $entity->set('rh_redirect_response', 301);
    }
  }
}