add template

src/app/app.topbar.component.ts

@@ -0,0 +1,24 @@
+import {Component, OnDestroy} from '@angular/core';
+import { AppComponent } from './app.component';
+import { AppMainComponent } from './app.main.component';
+import { Subscription } from 'rxjs';
+import { MenuItem } from 'primeng/api';
+
+@Component({
+    selector: 'app-topbar',
+    templateUrl: './app.topbar.component.html'
+})
+export class AppTopBarComponent implements OnDestroy{
+
+    subscription: Subscription;
+
+    items: MenuItem[];
+
+    constructor(public app: AppComponent, public appMain: AppMainComponent) {}
+
+    ngOnDestroy() {
+        if (this.subscription) {
+            this.subscription.unsubscribe();
+        }
+    }
+}