wait for the batchbuilder to signal its final cmdline before launching

src/app/launch-dialog/launch-dialog.component.ts

@@ -28,6 +28,7 @@ export class LaunchDialogComponent implements OnInit {
   @ViewChild('batchbuilderiframe', { read: ElementRef, static: false }) batchbuilderiframe: ElementRef;
   setFocus: Boolean;
   subscriptions: Subscription[];
+  launchNext: Boolean;
   width: number;
   height: number;
   public appData: any;
@@ -42,6 +43,7 @@ export class LaunchDialogComponent implements OnInit {
     this.submitcmd = null;
     this.appData = null
     this.subscriptions = [];
+    this.launchNext = false;
 
   }
 
@@ -100,6 +102,10 @@ export class LaunchDialogComponent implements OnInit {
         this.submitcmd = event.data['batchcmd'];
         console.log('recieved a submit cmd');
         console.log('recieveMessage'+this.submitcmd);
+        if  (this.launchNext) {
+          this.launchThisCmd(this.submitcmd);
+          this.launchNext = false;
+        }
       }
       if (event.data['appData'] !== undefined)  {
         this.appData = event.data['appData'];
@@ -116,8 +122,12 @@ export class LaunchDialogComponent implements OnInit {
     // tell the batchbuilder iframe that lanch was selected
     // This is the queue to save the values as defaults for next launch
     this.batchbuilderiframe.nativeElement.contentWindow.postMessage('launch selected',"*");
+    this.launchNext=true;
+  }
+
+  launchThisCmd(cmd) {
     let bi = new BatchInterface();
-    bi.submitcmd = this.submitcmd;
+    bi.submitcmd = cmd;
     if (this.appData != null){ 
       let appparams = this.appData;
       this.tesService.submit(this.app,this.identity,bi,appparams);