change handlermanager to use Map to prevent garbage

src/Model/Chat/chatListModel.ts

@@ -108,8 +108,8 @@ export default class ChatListModel {
         this.connectionModel = connectionModel;
         this.loadChats();
 
-        connectionModel.messageHandlerManager.addHandler(this.messageHandler);
-        connectionModel.messageSentHandlerManager.addHandler(
+        connectionModel.messageHandlerManager.setHandler("chat-list", this.messageHandler);
+        connectionModel.messageSentHandlerManager.setHandler("chat-list",
             this.messageSentHandler,
         );
     }

src/Model/Global/fileTransferModel.ts

@@ -133,7 +133,7 @@ export default class FileTransferModel {
         this.storageModel = storageModel;
         this.connectionModel = connectionModel;
 
-        this.connectionModel.messageHandlerManager.addHandler(
+        this.connectionModel.messageHandlerManager.setHandler("file-transfer",
             this.handleMessage,
         );
     }

src/Model/Utility/utility.ts

@@ -173,22 +173,20 @@ export function checkDoesObjectMatchSearch<T>(
 export type Handler<T> = (item: T) => void;
 
 export class HandlerManager<T> {
-    handlers = new Set<Handler<T>>();
+    handlers = new Map<string, Handler<T>>();
 
     // manage
-    addHandler = (handler: Handler<T>): void => {
-        this.handlers.add(handler);
+    setHandler = (id: string, handler: Handler<T>): void => {
+        this.handlers.set(id, handler);
     };
 
-    deleteHandler = (handler: Handler<T>): void => {
-        this.handlers.delete(handler);
+    deleteHandler = (id: string): void => {
+        this.handlers.delete(id);
     };
 
     // trigger
     trigger = (item: T): void => {
-        for (const handler of this.handlers) {
-            handler(item);
-        }
+        [...this.handlers.values()].forEach((handler) => handler(item));
     };
 }
 

src/ViewModel/Chat/chatViewModel.ts

@@ -173,7 +173,7 @@ export default class ChatViewModel extends ContextHost<ChatPageTypes> {
         );
 
         // handlers
-        chatModel.chatMessageHandlerManager.addHandler(
+        chatModel.chatMessageHandlerManager.setHandler(this.chatModel.id,
             (chatMessage: ChatMessage) => {
                 this.messagePageViewModel.showChatMessage(chatMessage);
                 this.updateReadStatus();
@@ -181,7 +181,7 @@ export default class ChatViewModel extends ContextHost<ChatPageTypes> {
                 this.notificationViewModel.showNotification(chatMessage);
             },
         );
-        chatModel.reactionHandlerManager.addHandler(
+        chatModel.reactionHandlerManager.setHandler(this.chatModel.id,
             (reaction: ChatMessageReaction) => {
                 this.messagePageViewModel.handleReaction(reaction);
             },

src/ViewModel/Global/connectionViewModel.ts

@@ -90,7 +90,8 @@ export default class ConnectionViewModel {
     constructor(public readonly coreViewModel: CoreViewModel) {
         this.updatePreviousAddresses();
 
-        coreViewModel.connectionModel.connectionChangeHandlerManager.addHandler(
+        coreViewModel.connectionModel.connectionChangeHandlerManager.setHandler(
+            "connection-view-model",
             this.connectionChangeHandler,
         );
     }

src/ViewModel/Global/coreViewModel.ts

@@ -100,7 +100,8 @@ export class Context {
         this.keystrokes.set(key, fn);
     };
 
-    constructor(public contextDebugDescription: string) {}
+    constructor(public contextDebugDescription: string) {
+    }
 }
 
 export class ContextHost<T> extends Context {

src/ViewModel/Global/fileTransferViewModel.ts

@@ -173,11 +173,11 @@ export default class FileTransferViewModel extends Context {
     constructor(public readonly coreViewModel: CoreViewModel) {
         super("file-transfer");
 
-        this.coreViewModel.fileTransferModel.fileHandlerManager.addHandler(
+        this.coreViewModel.fileTransferModel.fileHandlerManager.setHandler("file-transfer-view-model",
             this.handleReceivedFile,
         );
 
-        this.coreViewModel.fileTransferModel.readyToSendHandlerManager.addHandler(
+        this.coreViewModel.fileTransferModel.readyToSendHandlerManager.setHandler("file-transfer-view-model",
             () => this.initiateTransfer(),
         );
 

src/ViewModel/Pages/boardViewModel.ts

@@ -278,7 +278,7 @@ export default class BoardViewModel extends TaskContainingPageViewModel {
         });
 
         // handlers
-        boardsAndTasksModel.taskHandlerManager.addHandler(
+        boardsAndTasksModel.taskHandlerManager.setHandler(this.boardInfo.fileId,
             (taskFileContent: TaskFileContent) => {
                 if (taskFileContent.boardId != this.boardInfo.fileId) return;
                 this.showTask(taskFileContent);

src/ViewModel/Pages/calendarPageViewModel.ts

@@ -200,7 +200,7 @@ export default class CalendarPageViewModel extends TaskContainingPageViewModel {
         });
 
         // handlers
-        boardsAndTasksModel.taskHandlerManager.addHandler(
+        boardsAndTasksModel.taskHandlerManager.setHandler("calendar" + this.chatViewModel.chatModel.id,
             (taskFileContent: TaskFileContent) => {
                 this.showTask(taskFileContent);
             },

src/ViewModel/Pages/taskPageViewModel.ts

@@ -175,7 +175,7 @@ export default class TaskPageViewModel extends ContextHost<string> {
         this.selectedBoardId.subscribeSilent(this.updateContexts);
 
         // handlers
-        boardsAndTasksModel.boardHandlerManager.addHandler(
+        boardsAndTasksModel.boardHandlerManager.setHandler("task-page" + this.chatViewModel.chatModel.id,
             (boardInfoFileContent: BoardInfoFileContent) => {
                 this.showBoardInList(boardInfoFileContent);
                 this.updateBoardIndices();