gatsby_endpoints-8.x-1.0-alpha1/gatsby_endpoints.module

<?php

/**
 * @file
 * Contains gatsby_endpoints.module.
 */

use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\Core\Url;
use Drupal\gatsby_endpoints\Entity\GatsbyEndpointInterface;
use Drupal\node\Entity\NodeType;

/**
 * Implements hook_entity_insert().
 */
function gatsby_endpoints_entity_insert(EntityInterface $entity) {
  if (!$entity instanceof ContentEntityInterface) {
    return;
  }

  $gatsbyEndpointManager = \Drupal::service('gatsby.gatsby_endpoint_manager');
  $endpoints = $gatsbyEndpointManager->getEndpoints();
  foreach ($endpoints as $endpoint) {
    _gatsby_endpoints_process_entity($endpoint, $entity, 'insert');
  }

}

/**
 * Implements hook_entity_update().
 */
function gatsby_endpoints_entity_update(EntityInterface $entity) {
  if (!$entity instanceof ContentEntityInterface) {
    return;
  }

  $gatsbyEndpointManager = \Drupal::service('gatsby.gatsby_endpoint_manager');
  $endpoints = $gatsbyEndpointManager->getEndpoints();
  foreach ($endpoints as $endpoint) {
    _gatsby_endpoints_process_entity($endpoint, $entity, 'update');
  }

}

/**
 * Implements hook_entity_delete().
 */
function gatsby_endpoints_entity_delete(EntityInterface $entity) {
  if (!$entity instanceof ContentEntityInterface) {
    return;
  }

  $gatsbyEndpointManager = \Drupal::service('gatsby.gatsby_endpoint_manager');
  $endpoints = $gatsbyEndpointManager->getEndpoints();
  foreach ($endpoints as $endpoint) {
    _gatsby_endpoints_process_entity($endpoint, $entity, 'delete');
  }

}

/**
 * Processes an entity for a specific endpoint.
 */
function _gatsby_endpoints_process_entity(GatsbyEndpointInterface $endpoint, ContentEntityInterface $entity, $operation) {
  // Determine if the endpoint cares about this specific entity.
  $gatsbyEndpointManager = \Drupal::service('gatsby.gatsby_endpoint_manager');
  $action = $gatsbyEndpointManager->checkEntity($endpoint, $entity, $operation);
  if (!$action) {
    return;
  }

  $gatsbyEndpointTrigger = \Drupal::service('gatsby.gatsby_endpoint_trigger');

  if ($action == 'delete') {
    $gatsbyEndpointTrigger->gatsbyPrepareDelete($endpoint, $entity);
  }
  else {
    $gatsbyEndpointTrigger->gatsbyPrepareData($endpoint, $entity);
  }

  drupal_register_shutdown_function('_gatsby_endpoints_update');
}

/**
 * Triggers the update to the Gatsby Preview and Incremental Builds servers.
 */
function _gatsby_endpoints_update() {
  $gatsbyEndpointTrigger = \Drupal::service('gatsby.gatsby_endpoint_trigger');
  $gatsbyEndpointTrigger->gatsbyUpdate();
}

/**
 * Implements hook_form_alter().
 */
function gatsby_endpoints_form_alter(&$form, FormStateInterface $form_state, $form_id) {
  if (preg_match('/node_(\w*)_edit_form/', $form_id, $matches) && $form_id !== 'node_type_edit_form') {

    // Get Preview & iFrame settings.
    $node = $form_state->getFormObject()->getEntity();
    $node_type = NodeType::load($node->bundle());
    $preview_settings = $node_type->getThirdPartySetting('gatsby', 'preview');
    $target_settings = $node_type->getThirdPartySetting('gatsby', 'target');

    $preview_url = \Drupal::service('gatsby.gatsby_endpoint_manager')->getPreviewUrlForEntity($node);

    // Override node edit form.
    if (!empty($preview_settings) && $preview_url) {
      $alias = \Drupal::service('path_alias.manager')->getAliasByPath('/node/' . $node->id());

      // If this is the front-page we don't want to pass the alias
      // (as Gatsby will likely 404).
      if (\Drupal::service('path.matcher')->isFrontPage()) {
        $alias = '';
      }

      // Add Gatsby Preview button.
      $form['actions']['gatsby_preview'] = [
        '#type' => 'button',
        '#weight' => 5,
      ];
      $form['actions']['gatsby_preview']['#value'] = 'Open Gatsby Preview';
      $form['actions']['gatsby_preview']['#attributes']['class'] = ['gatsby-preview'];

      // Implement "Open Preview" action.
      $form['actions']['gatsby_preview']['#attached'] = [
        'drupalSettings' => [
          'gatsby_preview_url' => $preview_url,
          'gatsby_path' => $alias,
          'gatsby_preview_target' => !empty($target_settings) ? $target_settings : 'window',
        ],
        'library' => [
          'gatsby/open_preview',
        ],
      ];
    }
  }
}

/**
 * Implements hook_form_ID_alter().
 */
function gatsby_endpoints_form_gatsby_admin_form_alter(&$form, FormStateInterface $form_state) {
  foreach ($form as $key => $form_item) {
    if (!empty($form_item['#type'])) {
      unset($form[$key]);
    }
  }

  $form['endpoints_message'] = [
    '#markup' => '<p><strong>' . t('This form is overridden by functionality
    provided by the Gatsby Endpoints module.') . '</strong></p>',
  ];

  $url = Url::fromRoute('gatsby_endpoints.gatsby_endpoints_collection');
  $form['endpoints_link'] = [
    '#type' => 'link',
    '#url' => $url,
    '#title' => t('Manage your Gatsby Endpoints'),
  ];
}

/**
 * Implements hook_node_view().
 */
function gatsby_endpoints_node_view(array &$build, $entity, $display, $view_mode) {
  // Override node view page with iframe to Gatsby site.
  if (!empty($build['#node']) && $view_mode == 'full') {
    $node = $build['#node'];
    $iframe_settings = NodeType::load($entity->bundle())->getThirdPartySetting('gatsby', 'iframe');

    // We are wanting to render preview for this content type.
    if (!empty($iframe_settings)) {
      $preview_url = \Drupal::service('gatsby.gatsby_endpoint_manager')->getPreviewUrlForEntity($node);

      if (!$preview_url) {
        return;
      }

      $alias = \Drupal::service('path_alias.manager')->getAliasByPath('/node/' . $node->id());

      // If this is the front-page we don't want to pass the alias
      // (as Gatsby will likely 404).
      if (\Drupal::service('path.matcher')->isFrontPage()) {
        $alias = '';
      }

      $gatsby_url = preg_replace('/\/$/', '', $preview_url) . $alias;

      // Render an iframe to the preview URL.
      $build['gatsby_preview'] = [
        '#type' => 'inline_template',
        '#template' => '<div class="gatsby-iframe-container"><iframe class="gatsby-iframe" src="{{ url }}" /></div>',
        '#context' => [
          'url' => $gatsby_url,
        ],
        '#attached' => [
          'library' => [
            'gatsby/iframe_preview',
          ],
        ],
      ];
    }
  }
}

/**
 * Implements hook_cron().
 */
function gatsby_endpoints_cron() {
  $gatsbyEndpointManager = \Drupal::service('gatsby.gatsby_endpoint_manager');
  $endpoints = $gatsbyEndpointManager->getEndpoints();
  foreach ($endpoints as $endpoint) {
    _gatsby_endpoints_trigger_cron_builds($endpoint);
  }
}

/**
 * Triggers Endpoint build if the build_trigger is set to trigger on cron.
 */
function _gatsby_endpoints_trigger_cron_builds(GatsbyEndpointInterface $endpoint) {
  if ($endpoint->getBuildTrigger() === 'cron') {
    $gatsbyEndpointTrigger = \Drupal::service('gatsby.gatsby_endpoint_trigger');
    $gatsbyEndpointTrigger->triggerBuildUrls($endpoint);
  }
}