1 files changed, 37 insertions, 0 deletions
diff --git a/gae/frontend/src/app/appservice.ts b/gae/frontend/src/app/appservice.ts
new file mode 100644
index 0000000..6b303f0
--- /dev/null
+++ b/gae/frontend/src/app/appservice.ts
@@ -0,0 +1,37 @@
+/**
+ * Copyright (C) 2018 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+import {EventEmitter, Injectable, Output} from '@angular/core';
+
+
+@Injectable({
+  providedIn: 'root',
+})
+export class AppService {
+  @Output() closeSideNavEmitter = new EventEmitter();
+  @Output() showDetailsEmitter = new EventEmitter();
+  constructor() {
+  }
+
+  /** Emits an EventEmitter to display entity in the side nav window. */
+  showDetails(entity) {
+    this.showDetailsEmitter.emit(entity);
+  }
+
+  /** Emits an EventEmitter to close the side nav window. */
+  closeSideNav() {
+    this.closeSideNavEmitter.emit();
+  }
+}