pwa.pages.inc in Progressive Web App 7

File

pwa.pages.inc

<?php

/**
 * @file
 */

/**
 * Deliver the JS for the service worker.
 *
 * Adds a Service-Worker-Allowed header so that a file served from
 * '/pwa/serviceworker/js' can have a scope of '/'.
 */
function pwa_deliver_js_file($page_callback_result) {
  drupal_add_http_header('Content-Type', 'application/javascript');
  drupal_add_http_header('Content-Disposition', 'inline; filename="serviceworker.js"');
  drupal_add_http_header('Service-Worker-Allowed', base_path());
  print $page_callback_result;
}

/**
 * Returns the JS of the service worker.
 *
 * @return mixed
 */
function pwa_serviceworker_file_data($version = 1) {
  $data = cache_get('pwa:serviceworker', 'cache');
  if ($data) {
    $data = $data->data;
  }
  else {
    $data = _pwa_serviceworker_file();
    cache_set('pwa:serviceworker', $data, 'cache');
  }
  return $data;
}

/**
 * Default page when for when the user has no connection.
 *
 * @todo template like maintenance page?
 *
 * @return string
 */
function pwa_offline_page() {
  return [
    '#theme' => 'html_tag',
    '#tag' => 'h1',
    '#value' => 'You are offline.',
    '#attributes' => [
      'data-drupal-pwa-offline' => TRUE,
    ],
  ];
}

/**
 * Route to confirm for SW that module is still active.
 *
 * @return string
 */
function pwa_module_active() {
  return [
    '#theme' => 'html_tag',
    '#tag' => 'h1',
    '#value' => 'PWA module is installed.',
    '#attributes' => [
      'data-drupal-pwa-active' => TRUE,
    ],
  ];
}

Functions

Name	Description
pwa_deliver_js_file	Deliver the JS for the service worker.
pwa_module_active	Route to confirm for SW that module is still active.
pwa_offline_page	Default page when for when the user has no connection.
pwa_serviceworker_file_data	Returns the JS of the service worker.