html_to_pdf.module

<?php

/**
 * @file
 * Contains html_to_pdf.module.
 */

use Drupal\Core\Routing\RouteMatchInterface;

/**
 * Implements hook_help().
 */
function html_to_pdf_help($route_name, RouteMatchInterface $route_match) {
  switch ($route_name) {
    // Main module help for the html_to_pdf module.
    case 'help.page.html_to_pdf':
      $output = '';
      $output .= '<h3>' . t('About') . '</h3>';
      $output .= '<p>' . t('Html to PDF module.') . '</p>';
      return $output;

    default:
  }
}

/**
 * Implements hook_theme().
 *
 * Set standart values for html_to_pdf template.
 */
function html_to_pdf_theme(): array {
  return [
    'html_to_pdf' => [
      'variables' => [
        'content' => NULL,
        'links' => NULL,
      ],
    ],
  ];
}

/**
 * Implements hook_local_tasks_alter().
 *
 * Simply sets target attribute for local task link.
 *
 * @param $local_tasks
 *
 * @return string
 */
function html_to_pdf_local_tasks_alter(&$local_tasks): string {
  return $local_tasks['html_to_pdf.pdf_tab']['options']['attributes']['target'] = '_blank';
}