gatsby.module in Gatsby Live Preview & Incremental Builds 8

Contains gatsby.module.

File

gatsby.module

<?php

/**
 * @file
 * Contains gatsby.module.
 */
use Drupal\Core\Entity\ContentEntityInterface;
use Drupal\Core\Routing\RouteMatchInterface;
use Drupal\Core\Entity\EntityInterface;
use Drupal\Core\Config\Entity\ConfigEntityInterface;
use Drupal\Core\Form\FormStateInterface;
use Drupal\node\Entity\NodeType;
use Drupal\gatsby\PathMapping;

/**
 * Implements hook_help().
 */
function gatsby_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {

    // Main module help for the gatsby module.
    case 'help.page.gatsby':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Enables Live Preview for Gatsby') . '</p>';
      return $output;
    default:
  }
}

/**
 * Implements hook_form_alter().
 */
function gatsby_form_alter(&$form, FormStateInterface $form_state, $form_id) {

  // Add Gatsby Preview button to content type settings form.
  if ($form_id == 'node_type_edit_form') {

    // Get Preview & iFrame settings.
    $entity = $form_state
      ->getFormObject()
      ->getEntity();
    $preview_settings = $entity
      ->getThirdPartySetting('gatsby', 'preview');
    $target_settings = $entity
      ->getThirdPartySetting('gatsby', 'target');
    $iframe_settings = $entity
      ->getThirdPartySetting('gatsby', 'iframe');
    $form['gatsby'] = [
      '#title' => t('Gatsby Preview'),
      '#type' => 'details',
      '#group' => 'additional_settings',
    ];
    $form['gatsby']['gatsby_preview'] = [
      '#type' => 'checkbox',
      '#title' => t('Enable Gatsby Preview Button'),
      '#default_value' => !empty($preview_settings),
      '#description' => t('This will add a Gatsby Preview button to node pages.'),
    ];
    $form['gatsby']['gatsby_preview_target'] = [
      '#type' => 'select',
      '#title' => t('Gatsby Preview Button Target'),
      '#options' => [
        'window' => t('New Window'),
        'sidebar' => t('Sidebar on Node Edit page'),
      ],
      '#description' => t('This controls the behavior of the Gatsby preview button.'),
      '#default_value' => !empty($target_settings) ? $target_settings : [],
      '#states' => [
        'visible' => [
          ':input[name="gatsby_preview"]' => [
            'checked' => TRUE,
          ],
        ],
      ],
    ];
    $form['gatsby']['gatsby_iframe'] = [
      '#type' => 'checkbox',
      '#title' => t('Enable Gatsby iFrame Preview'),
      '#default_value' => !empty($iframe_settings),
      '#description' => t('This will add an iFrame display to node pages.'),
    ];
    $form['#entity_builders'][] = 'gatsby_preview_node_entity_builder';
  }
  elseif (preg_match('/node_(\\w*)_edit_form/', $form_id, $matches)) {
    $moduleHandler = \Drupal::service('module_handler');
    if ($moduleHandler
      ->moduleExists('gatsby_endpoints')) {
      return;
    }

    // Get entity_type.
    $entity = $form_state
      ->getFormObject()
      ->getEntity();

    // Load settings.
    $entity_type = NodeType::load($entity
      ->bundle());
    $preview_settings = $entity_type
      ->getThirdPartySetting('gatsby', 'preview');
    $target_settings = $entity_type
      ->getThirdPartySetting('gatsby', 'target');
    $server_urls = array_map('trim', explode(',', \Drupal::config('gatsby.settings')
      ->get('server_url')));
    $server_url = reset($server_urls);
    if (!empty($preview_settings) && !empty($server_url)) {
      $node = \Drupal::routeMatch()
        ->getParameter('node');

      // 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' => $server_url,
          'gatsby_path' => \Drupal::service('gatsby.path_mapping')
            ->getPath($node),
          'gatsby_preview_target' => !empty($target_settings) ? $target_settings : 'window',
        ],
        'library' => [
          'gatsby/open_preview',
        ],
      ];
    }
  }
}

/**
 * Custom handler for Gatsby preview option.
 */
function gatsby_preview_node_entity_builder($entity_type, ConfigEntityInterface $config_entity, &$form, FormStateInterface $form_state) {

  // Save Preview setting.
  $config_entity
    ->setThirdPartySetting('gatsby', 'preview', $form_state
    ->getValue('gatsby_preview'));
  $config_entity
    ->setThirdPartySetting('gatsby', 'target', $form_state
    ->getValue('gatsby_preview_target'));
  $config_entity
    ->setThirdPartySetting('gatsby', 'iframe', $form_state
    ->getValue('gatsby_iframe'));
}

/**
 * Implements hook_entity_update().
 */
function gatsby_entity_update(EntityInterface $entity) {

  // Don't run entity_updates if gatsby_endpoints is enabled.
  $moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler
    ->moduleExists('gatsby_endpoints')) {
    return;
  }
  $gatsbyPreview = \Drupal::service('gatsby.gatsby_preview');
  if (!$entity instanceof ContentEntityInterface || !$gatsbyPreview
    ->isPreviewEntity($entity)) {
    return;
  }
  if (!$gatsbyPreview
    ->isConfigured()) {
    return;
  }
  $gatsbyPreview
    ->gatsbyPrepareData($entity);
  drupal_register_shutdown_function('_gatsby_update');
}

/**
 * Implements hook_entity_insert().
 */
function gatsby_entity_insert(EntityInterface $entity) {

  // Don't run entity_inserts if gatsby_endpoints is enabled.
  $moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler
    ->moduleExists('gatsby_endpoints')) {
    return;
  }
  $gatsbyPreview = \Drupal::service('gatsby.gatsby_preview');
  if (!$entity instanceof ContentEntityInterface || !$gatsbyPreview
    ->isPreviewEntity($entity)) {
    return;
  }
  if (!$gatsbyPreview
    ->isConfigured()) {
    return;
  }
  $gatsbyPreview
    ->gatsbyPrepareData($entity, 'insert');
  drupal_register_shutdown_function('_gatsby_update');
}

/**
 * Implements hook_entity_delete().
 */
function gatsby_entity_delete(EntityInterface $entity) {

  // Don't run entity_deletes if gatsby_endpoints is enabled.
  $moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler
    ->moduleExists('gatsby_endpoints')) {
    return;
  }
  $gatsbyPreview = \Drupal::service('gatsby.gatsby_preview');
  if (!$entity instanceof ContentEntityInterface || !$gatsbyPreview
    ->isPreviewEntity($entity)) {
    return;
  }
  if (!$gatsbyPreview
    ->isConfigured()) {
    return;
  }
  $gatsbyPreview
    ->gatsbyPrepareDelete($entity);
  drupal_register_shutdown_function('_gatsby_update');
}

/**
 * Implements hook_node_view().
 */
function gatsby_node_view(array &$build, $entity, $display, $view_mode) {

  // Don't run hook_node_view if gatsby_endpoints is enabled.
  $moduleHandler = \Drupal::service('module_handler');
  if ($moduleHandler
    ->moduleExists('gatsby_endpoints')) {
    return;
  }
  $server_urls = array_map('trim', explode(',', \Drupal::config('gatsby.settings')
    ->get('server_url')));
  $server_url = reset($server_urls);

  // Override node view page with iframe to Gatsby site.
  if (!empty($build['#node']) && $view_mode == 'full') {
    $node = $build['#node'];

    // Load settings.
    $entity_type = NodeType::load($entity
      ->bundle());
    $iframe_settings = $entity_type
      ->getThirdPartySetting('gatsby', 'iframe');

    // We are wanting to render preview for this content type.
    if (!empty($iframe_settings)) {
      $gatsby_url = preg_replace('/\\/$/', '', $server_url) . \Drupal::service('gatsby.path_mapping')
        ->getPath($node);
      $build = [];
      $build['#node'] = $node;
      $build['#entity_type'] = 'node';

      // 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 }}"></iframe></div>',
        '#context' => [
          'url' => $gatsby_url,
        ],
        '#attached' => [
          'library' => [
            'gatsby/iframe_preview',
          ],
        ],
      ];
    }
  }
}

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

/**
 * Gets the correct path for an entity.
 *
 * @deprecated in gatsby:8.x-2.0 and is removed from gatsby:8.x-3.0.
 *   Use \Drupal\gatsby\PathMapping::getPath().
 *
 * @see https://www.drupal.org/node/3203580
 */
function _gatsby_get_path(EntityInterface $node) {
  @trigger_error('_gatsby_get_path() is deprecated in gatsby:8.x-2.0 and is removed from gatsby:8.x-3.0. Use \\Drupal\\gatsby\\PathMapping::getPath(). See https://www.drupal.org/node/3203580', E_USER_DEPRECATED);
  return \Drupal::service('gatsby.path_mapping')
    ->getPath($node);
}

/**
 * Gets an array of Gatsby Preview path mappings.
 *
 * @deprecated in gatsby:8.x-2.0 and is removed from gatsby:8.x-3.0.
 *   Use \Drupal\gatsby\PathMapping::getPathMapping().
 *
 * @see https://www.drupal.org/node/3203580
 */
function _gatsby_get_path_mapping() {
  @trigger_error('_gatsby_get_path() is deprecated in gatsby:8.x-2.0 and is removed from gatsby:8.x-3.0. Use \\Drupal\\gatsby\\PathMapping::getPathMapping(). See https://www.drupal.org/node/3203580', E_USER_DEPRECATED);
  return PathMapping::parsePathMapping(\Drupal::config('gatsby.settings')
    ->get('path_mapping'));
}

Functions

Name	Description
gatsby_entity_delete	Implements hook_entity_delete().
gatsby_entity_insert	Implements hook_entity_insert().
gatsby_entity_update	Implements hook_entity_update().
gatsby_form_alter	Implements hook_form_alter().
gatsby_help	Implements hook_help().
gatsby_node_view	Implements hook_node_view().
gatsby_preview_node_entity_builder	Custom handler for Gatsby preview option.
_gatsby_get_path Deprecated	Gets the correct path for an entity.
_gatsby_get_path_mapping Deprecated	Gets an array of Gatsby Preview path mappings.
_gatsby_update	Triggers the update to the Gatsby Preview and Incremental Builds servers.