snapshot of https://github.com/RocketChat/Rocket.Chat.git (develop, 2026-09-16; blobs > 131072B omitted)

apps/meteor/client/views/room/providers/hooks/useChatMessagesInstance.ts

@@ -0,0 +1,48 @@
+import type { IMessage, IRoom } from '@rocket.chat/core-typings';
+import { useUserId } from '@rocket.chat/ui-contexts';
+import { useEffect } from 'react';
+
+import { useInstance } from './useInstance';
+import { useEmojiPicker } from '../../../../contexts/EmojiPickerContext';
+import { ChatMessages } from '../../../../lib/ChatMessages';
+import type { ChatAPI } from '../../../../lib/chats/ChatAPI';
+import { useUiKitActionManager } from '../../../../uikit/hooks/useUiKitActionManager';
+import { useRoomSubscription } from '../../contexts/RoomContext';
+import { useE2EERoomState } from '../../hooks/useE2EERoomState';
+
+export function useChatMessagesInstance({
+	rid,
+	tmid,
+	encrypted,
+}: {
+	rid: IRoom['_id'];
+	tmid?: IMessage['_id'];
+	encrypted: IRoom['encrypted'];
+}): ChatAPI {
+	const uid = useUserId();
+	const subscription = useRoomSubscription();
+	const actionManager = useUiKitActionManager();
+	const e2eRoomState = useE2EERoomState(rid);
+
+	const chatMessages = useInstance(() => {
+		const instance = new ChatMessages({ rid, tmid, uid, actionManager });
+
+		return [instance, () => instance.release()];
+	}, [rid, tmid, uid, encrypted, e2eRoomState]);
+
+	useEffect(() => {
+		if (subscription?.rid) {
+			return chatMessages?.readStateManager.subscribeToMessages();
+		}
+	}, [subscription?.rid, chatMessages?.readStateManager]);
+
+	useEffect(() => {
+		if (subscription) {
+			chatMessages?.readStateManager.updateSubscription(subscription);
+		}
+	}, [subscription, chatMessages?.readStateManager]);
+
+	chatMessages.emojiPicker = useEmojiPicker();
+
+	return chatMessages;
+}