feat: add eventListener in Atlas for Gen3 logout event

kube/services/ohdsi-atlas/ohdsi-atlas-config-local.yaml

@@ -4,7 +4,7 @@ metadata:
   name: ohdsi-atlas-config-local
 data:
   config-local.js: |
-    define([], function () {
+    define(['components/welcome'], function (welcome) {
       var configLocal = {};
       // WebAPI
       configLocal.api = {
@@ -33,6 +33,12 @@ data:
       return configLocal;
     });
 
+    /////////////////////////////////////////////////////////////
+    // Code to post messages to Gen3 to keep the Gen3 session
+    // alive when the user is busy in Atlas (which is in an iframe
+    // inside Gen3 portal).
+    /////////////////////////////////////////////////////////////
+    
     var parentOfThisIframe = window.parent;
     var mouseoverCount = 0;
 
@@ -45,3 +51,28 @@ data:
         mouseoverCount = 0;
         }
     });
+
+    /////////////////////////////////////////////////////////////
+    // Code to process logout message from Gen3 portal to 
+    // ensure the user is logged out of Atlas when clicking logout
+    // in Gen3 portal.
+    /////////////////////////////////////////////////////////////
+
+    window.addEventListener('message', this.processParentIncomingMessages);
+    processParentIncomingMessages = (event) => {
+      const host = $hostname;
+      const applicationBaseUrl = `https//${host}`;
+
+      // ONLY process messages coming from the same domain as the app AND
+      // which contain the message "logout user!":
+      if (
+        event.origin === applicationBaseUrl
+        && event.data === 'logout user!'
+      ) {
+        // Call function to logout user from Atlas:
+        welcome.signout();
+      }
+    };
+    // post message back acknowledging receipt and successful Atlas
+    // logout:
+    // TODO