Detect whether Service Worker of Nomad Web is running, based on that …

…display to the user message

(reference #53)

Super.Human.Portal_Royale/src/net/apacheRoyaleTemplatedApp/constants/ApplicationConstants.as

@@ -75,6 +75,8 @@ package constants
 		public static const NOTE_OPEN_ADD_EDIT_BOOKMARK:String = NAME + SEPARATOR + "NoteOpenAddEditBookmark";
 		public static const NOTE_OPEN_SELECTED_BOOKMARK_GROUP:String = NAME + SEPARATOR + "NoteOpenSelectedBookmarkGroup";
 
+		public static const NOTE_FAILED_OPEN_NOMAD_LINK:String = NAME + SEPARATOR + "NoteFailedOpenNomadLink";
+
 		//----------------------------------
 		// Commands
 		//----------------------------------

Super.Human.Portal_Royale/src/net/apacheRoyaleTemplatedApp/controller/CommandLaunchNomadLink.as

@@ -9,6 +9,7 @@ package controller
 	import model.proxy.login.ProxyLogin;
 	import org.apache.royale.net.navigateToURL;
 	import org.apache.royale.net.URLRequest;
+	import constants.ApplicationConstants;
 
 	public class CommandLaunchNomadLink extends SimpleCommand
 	{
@@ -17,23 +18,43 @@ package controller
 			var loginProxy:ProxyLogin = facade.retrieveProxy(ProxyLogin.NAME) as ProxyLogin;
 			var nomadHelperUrl:String = loginProxy.config.config.nomad_helper_url;
 			var link:String = note.getBody().link;
+			window["onmessage"] = null;
 
 			if (nomadHelperUrl)
 			{
 				var mainMediator:MediatorMainContentView = facade.retrieveMediator(MediatorMainContentView.NAME) as MediatorMainContentView;
 				var nomadHelper:Iframe = mainMediator.view.viewNomadHelper as Iframe;
 
-
+				window["onmessage"] = onWindowMessage;
+
 				var encodedLink:String = encodeURIComponent(link);
 				nomadHelper.src = nomadHelperUrl + "?link=" + encodedLink;
 
 				var appName:String = note.getBody().name;
-				Snackbar.show("Application " + appName + " has been opened in HCL Nomad web", 4000, null);
+				Snackbar.show("Opening application " + appName + " in HCL Nomad Web in progress...", 4000, null);
 			}
 			else
 			{
 				navigateToURL(new URLRequest(link));
 			}
 		}
+
+		private function onWindowMessage(event:Event):void 
+		{
+			var loginProxy:ProxyLogin = facade.retrieveProxy(ProxyLogin.NAME) as ProxyLogin;
+			var nomadHelperUrl:String = loginProxy.config.config.nomad_helper_url;
+
+			window["onmessage"] = null;
+			var winMessage:String = event["data"];
+			var errorPrefix:String = "[Error]";
+			var hasErrorIndex:int = winMessage.indexOf(errorPrefix);
+			var hasOriginIndex:int = nomadHelperUrl.indexOf(event["origin"]);
+
+			if (hasErrorIndex > -1 && hasOriginIndex > -1)
+			{
+				winMessage = winMessage.substr(errorPrefix.length, winMessage.length);
+				sendNotification(ApplicationConstants.NOTE_FAILED_OPEN_NOMAD_LINK, winMessage);
+			}
+		}
 	}
 }

Super.Human.Portal_Royale/src/net/apacheRoyaleTemplatedApp/mediator/MediatorMainContentView.as

@@ -31,6 +31,8 @@ package mediator
     import org.puremvc.as3.multicore.interfaces.IMediator;
     import org.puremvc.as3.multicore.interfaces.INotification;
     import org.puremvc.as3.multicore.patterns.mediator.Mediator;
+    import model.vo.PopupVO;
+    import constants.PopupType;
 
     public class MediatorMainContentView extends Mediator implements IMediator
     {
@@ -99,6 +101,7 @@ package mediator
 					interests.push(ApplicationConstants.NOTE_OPEN_ADD_EDIT_GENESIS_DIR);
 					interests.push(ApplicationConstants.NOTE_OPEN_ADD_EDIT_BOOKMARK);
 					interests.push(ApplicationConstants.NOTE_OPEN_SELECTED_BOOKMARK_GROUP);
+					interests.push(ApplicationConstants.NOTE_FAILED_OPEN_NOMAD_LINK);
 
 				return interests;
 			}
@@ -161,6 +164,9 @@ package mediator
 					case ApplicationConstants.NOTE_OPEN_SELECTED_BOOKMARK_GROUP:
 						selectBookmarkGroup(String(note.getBody()));
 						break;
+					case ApplicationConstants.NOTE_FAILED_OPEN_NOMAD_LINK:
+						sendNotification(ApplicationConstants.COMMAND_SHOW_POPUP, new PopupVO(PopupType.ERROR, this.getMediatorName(), "Nomad Web is not running. " + String(note.getBody())));
+						break;
 				}
 			}		
 

Super.Human.Portal_Royale/src/resources/nomadhelper.html

@@ -29,6 +29,8 @@
             });
         } else {
             console.error('No service worker registered');
+
+        		window.top.postMessage('[Error] No service worker registered', '*');
         }
     }