Issue #3417218 by Grimreaper: Enable Gitlab CI + Update README + Coding standards

Closes #3417218

js/i18n_sso.js

@@ -5,12 +5,9 @@
  * If so, it logs in user on current website and reload page.
  */
 
-(function (Drupal, drupalSettings, once) {
-
-  'use strict';
-
+((Drupal, drupalSettings, once) => {
   Drupal.behaviors.i18n_sso = Drupal.behaviors.i18n_sso || {};
-  Drupal.behaviors.i18n_sso.attach = function (context) {
+  Drupal.behaviors.i18n_sso.attach = (context) => {
     Drupal.behaviors.i18n_sso.initLogin(context);
   };
 
@@ -23,31 +20,33 @@
    * @param {HTMLDocument|HTMLElement} context
    *   An element to use as context for querySelectorAll.
    */
-  Drupal.behaviors.i18n_sso.initLogin = function (context) {
-    once('i18n_sso', drupalSettings.i18n_sso.wrapperSelector, context).forEach(function (element) {
-      var div = document.createElement('div');
-      div.setAttribute('id', 'sso-waiting');
-      div.innerHTML = drupalSettings.i18n_sso.waiting;
-      element.insertBefore(div, element.firstChild);
-      Drupal.behaviors.i18n_sso.getToken();
-    });
+  Drupal.behaviors.i18n_sso.initLogin = (context) => {
+    once('i18n_sso', drupalSettings.i18n_sso.wrapperSelector, context).forEach(
+      (element) => {
+        const div = document.createElement('div');
+        div.setAttribute('id', 'sso-waiting');
+        div.innerHTML = drupalSettings.i18n_sso.waiting;
+        element.insertBefore(div, element.firstChild);
+        Drupal.behaviors.i18n_sso.getToken();
+      },
+    );
   };
 
   /**
    * Retrieves token on configured url and calls the useToken function.
    */
-  Drupal.behaviors.i18n_sso.getToken = function () {
-    var xhr = new XMLHttpRequest();
+  Drupal.behaviors.i18n_sso.getToken = () => {
+    const xhr = new XMLHttpRequest();
     xhr.open('POST', drupalSettings.i18n_sso.ssoUrl);
     xhr.withCredentials = true;
     xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-    xhr.onload = function () {
+    xhr.onload = () => {
       if (xhr.status === 200) {
-        var data = JSON.parse(xhr.responseText);
+        const data = JSON.parse(xhr.responseText);
         Drupal.behaviors.i18n_sso.useToken(data);
       }
     };
-    xhr.send('origin=' + encodeURIComponent(window.location.origin));
+    xhr.send(`origin=${encodeURIComponent(window.location.origin)}`);
   };
 
   /**
@@ -58,26 +57,28 @@
    * @param {object} data
    *   The data retrieved from the SSO URL endpoint.
    */
-  Drupal.behaviors.i18n_sso.useToken = function (data) {
-    var waitingElement = document.getElementById('sso-waiting');
+  Drupal.behaviors.i18n_sso.useToken = (data) => {
+    const waitingElement = document.getElementById('sso-waiting');
     if (waitingElement) {
       waitingElement.innerHTML = data.message;
       if (data.token !== false) {
-        var xhr = new XMLHttpRequest();
+        const xhr = new XMLHttpRequest();
         xhr.open('POST', drupalSettings.i18n_sso.ssoLogin);
-        xhr.setRequestHeader('Content-Type', 'application/x-www-form-urlencoded');
-        xhr.onload = function () {
+        xhr.setRequestHeader(
+          'Content-Type',
+          'application/x-www-form-urlencoded',
+        );
+        xhr.onload = () => {
           if (xhr.status === 200) {
-            var loginData = JSON.parse(xhr.responseText);
+            const loginData = JSON.parse(xhr.responseText);
             waitingElement.innerHTML = loginData.message;
             if (loginData.success === true) {
               window.location.reload();
             }
           }
         };
-        xhr.send('token=' + encodeURIComponent(data.token));
+        xhr.send(`token=${encodeURIComponent(data.token)}`);
       }
     }
   };
-
 })(Drupal, drupalSettings, once);