WIP

APP/src/components/drop-down-list/drop-down-list.service.ts

@@ -0,0 +1,24 @@
+import { Injectable } from '@angular/core';
+import { Observable, Subject } from 'rxjs';
+import { DropDownOption } from '../../entity/dropDownOption';
+import { DropDownBag } from './drop-down-menu/drop-down-menu.component';
+
+@Injectable({
+  providedIn: 'root'
+})
+export class DropDownListService {
+
+  constructor() { }
+  onItemSelect = new Subject<DropDownBag>();
+
+  focusIndexChange = new Subject<DropDownBag>();
+
+
+  selectItem(tag: string, item: DropDownOption) {
+    this.onItemSelect.next({ tag: tag, item: item } as DropDownBag)
+  }
+  setFocusIndex(tag: string, i: number) {
+    this.focusIndexChange.next(
+      { tag: tag, focusIndex: i } as DropDownBag);
+  }
+}