webform_calculation-8.x-1.0/webform_calculation.module

<?php

/**
 * @file
 * Contains webform_calculation.module.
 */

define('WEBFORM_CALCULATION_LIBRARY', 'libraries/Calculation');

/**
 * Implements hook_theme().
 */
function webform_calculation_theme($existing, $type, $theme, $path) {
  return [
    'webform_calculation' => [
      'variables' => [
        'submission' => NULL,
        'result' => NULL,
        'element' => NULL,
      ],
    ],
  ];
}

/**
 * Implements hook_theme_suggestions_HOOK().
 */
function webform_calculation_theme_suggestions_webform_calculation(array $variables) {
  return [
    'webform_calculation__' . $variables['submission']->getWebform()->id(),
    'webform_calculation__' . $variables['submission']->getWebform()->id() . '__' . $variables['element'],
  ];
}

/**
 * Implements hook_theme_registry_alter().
 *
 * Adds ability to use template files for webform result outside of the folder
 * with themes.
 */
function webform_calculation_theme_registry_alter(&$theme_registry) {
  $templates = drupal_find_theme_templates($theme_registry, twig_extension(), WEBFORM_CALCULATION_LIBRARY);
  foreach ($templates as $template => $info) {
    $templates[$template]['type'] = isset($templates[$template]['type']) ? $templates[$template]['type'] : 'theme_engine';
    $templates[$template]['preprocess functions'] = [
      'template_preprocess_webform',
    ];
  }

  // If template is already exists then leave it as is, if there is no template
  // in the theme folder then use template from the libraries folder.
  $theme_registry = $theme_registry + $templates;
}