add angular material project

jambotron-ui/src/app/_shared/event-bus.service.spec.ts

@@ -0,0 +1,16 @@
+import { TestBed } from '@angular/core/testing';
+
+import { EventBusService } from './event-bus.service';
+
+describe('EventBusService', () => {
+  let service: EventBusService;
+
+  beforeEach(() => {
+    TestBed.configureTestingModule({});
+    service = TestBed.inject(EventBusService);
+  });
+
+  it('should be created', () => {
+    expect(service).toBeTruthy();
+  });
+});

jambotron-ui/src/app/_shared/event-bus.service.ts

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+import { Injectable } from '@angular/core';
+import { Subject, Subscription } from 'rxjs';
+import { filter, map } from 'rxjs/operators';
+import { EventData } from './event.class';
+
+@Injectable({
+  providedIn: 'root',
+})
+export class EventBusService {
+  private subject$ = new Subject<EventData>();
+
+  emit(event: EventData) {
+    this.subject$.next(event);
+  }
+
+  on(eventName: string, action: any): Subscription {
+    return this.subject$.pipe(
+      filter((e: EventData) => e.name === eventName),
+      map((e: EventData) => e["value"])).subscribe(action);
+  }
+}

jambotron-ui/src/app/_shared/event.class.ts

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+export class EventData {
+  name: string;
+  value: any;
+
+  constructor(name: string, value: any) {
+    this.name = name;
+    this.value = value;
+  }
+}