MOBILE-4912 menu: Listen to config updates to update the handlers

Author: crazyserver

src/core/features/mainmenu/services/mainmenu-delegate.ts

@@ -20,6 +20,9 @@ import { CoreSortedDelegate } from '@classes/delegate-sorted';
 import { makeSingleton } from '@singletons';
 import { MAIN_MENU_FEATURE_PREFIX } from '../constants';
 import { CoreConstants } from '@/core/constants';
+import { CoreEvents } from '@singletons/events';
+import { CoreConfigProvider } from '@services/config';
+import { CoreMainMenuOverrideItem } from './mainmenu';
 
 /**
  * Interface that all main menu handlers must implement.
@@ -109,6 +112,19 @@ export interface CoreMainMenuHandlerToDisplay extends CoreDelegateToDisplay, Cor
 export class CoreMainMenuDelegateService extends CoreSortedDelegate<CoreMainMenuHandlerToDisplay, CoreMainMenuHandler> {
 
     protected featurePrefix = MAIN_MENU_FEATURE_PREFIX;
+    protected previousEnvironment: CoreMainMenuOverrideItem[] = [];
+
+    constructor() {
+        super();
+
+        CoreEvents.on(CoreConfigProvider.ENVIRONMENT_UPDATED, (config) => {
+            const newConfig = config.overrideMainMenuButtons ?? [];
+            if (JSON.stringify(this.previousEnvironment) === JSON.stringify(newConfig)) {
+                return;
+            }
+            this.updateHandlers();
+        });
+    }
 
     /**
      * @inheritdoc
@@ -118,6 +134,8 @@ export class CoreMainMenuDelegateService extends CoreSortedDelegate<CoreMainMenu
 
         // Override priority and icon if needed.
         const config = CoreConstants.CONFIG.overrideMainMenuButtons ?? [];
+        this.previousEnvironment = config;
+
         const override = config.find((entry) => entry.handler === name);
         if (override) {
             if (override.priority !== undefined) {