From 0fe9cb7126a79d4ea1de5aa7d012fa1b2ee8d291 Mon Sep 17 00:00:00 2001
From: Developer 02 <developer02@didaloghe.onmicrosoft.com>
Date: Tue, 6 Aug 2024 15:02:33 +0200
Subject: [PATCH] =?UTF-8?q?feat:=20UpdateService=20mit=20=C3=84nderungs-Li?=
 =?UTF-8?q?stenern=20und=20zus=C3=A4tzlichen=20Funktionen=20erweitern?=
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- Getter `any` hinzugefügt, um zu überprüfen, ob Aktionen vorhanden sind.
- Methoden `addAsync` und `add` geändert, um Änderungs-Listener nach dem Hinzufügen von Aktionen zu benachrichtigen.
- `changeListeners`-Array implementiert mit Methoden zum Hinzufügen und Entfernen von Listenern.
- `executeAllChangeListeners` hinzugefügt, um alle registrierten Änderungs-Listener auszulösen.
- Methode `removeAll` aktualisiert, um Änderungs-Listener nach dem Leeren der Aktionen zu benachrichtigen.
---
 .../src/app/services/update.service.ts        | 31 +++++++++++++++++--
 1 file changed, 28 insertions(+), 3 deletions(-)

diff --git a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/update.service.ts b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/update.service.ts
index 2ab64e1..cd9cbc6 100644
--- a/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/update.service.ts
+++ b/DigitalData.UserManager.API/ClientApp/user_manager_ui/src/app/services/update.service.ts
@@ -1,4 +1,5 @@
 import { Injectable } from '@angular/core';
+import { Action } from 'rxjs/internal/scheduler/Action';
 
 @Injectable({
   providedIn: 'root'
@@ -10,33 +11,57 @@ export class UpdateService {
   private async_actions: Array<() => Promise<void>> = [];
   private actions: Array<() => void> = [];
 
-  get asyncCount() {
+  get asyncCount(): number {
     return this.async_actions.length;
   }
 
-  get syncCount() {
+  get syncCount(): number {
     return this.actions.length;
   }
 
-  get totalCount() {
+  get totalCount(): number {
     return this.asyncCount + this.syncCount;
   }
 
+  get any(): boolean {
+    return this.totalCount > 0;
+  }
+
+  //add - remove
   addAsync(action: () => Promise<void>): void {
     this.async_actions.push(action);
+    this.executeAllChangeListeners();
   }
 
   add(action: () => void): void {
     this.actions.push(action);
+    this.executeAllChangeListeners();
   }
 
   removeAll(): void {
     this.async_actions = [];
+    this.executeAllChangeListeners();
   }
 
+  //execution
   async executeAll(): Promise<void> {
     await Promise.all(this.async_actions.map(action => action()));
     this.actions.forEach(action => action());
     this.removeAll();
   }
+
+  //change listeners
+  private changeListeners: Array<(updateService: UpdateService) => void> = new Array();
+
+  addChangeListener(action: (updateService: UpdateService) => void) {
+    this.changeListeners.push(action)
+  }
+
+  removeAllChangeListeners() {
+    this.changeListeners = []
+  }
+
+  private executeAllChangeListeners() {
+    this.changeListeners.forEach(e => e(this));
+  }
 }
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