add state service

Author: ketteiteki

MangoAPI.Client/src/app/services/states/blackCoverState.service.ts

@@ -0,0 +1,23 @@
+import { Injectable } from '@angular/core';
+
+
+@Injectable({
+  providedIn: 'root'
+})
+export class BlackCoverStateService {
+  public isBlackCoverShowing: boolean = false;
+  public picture: string | null = null;
+
+
+  public setIsBlackCoverShowing = (value: boolean) => {
+    this.isBlackCoverShowing = value;
+  }
+
+  public setPicture = (fileName: string) => {
+    this.picture = fileName;
+  }
+
+  public setPictureNull = () => {
+    this.picture = null;
+  }
+}