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

apps/meteor/client/views/room/ImageGallery/hooks/useImagesList.ts

@@ -0,0 +1,64 @@
+import { Base64 } from '@rocket.chat/base64';
+import type { IRoom } from '@rocket.chat/core-typings';
+import { useEndpoint } from '@rocket.chat/ui-contexts';
+import { useInfiniteQuery } from '@tanstack/react-query';
+
+import { e2e } from '../../../../lib/e2ee/rocketchat.e2e';
+import { roomsQueryKeys } from '../../../../lib/queryKeys';
+
+export const useImagesList = ({ roomId, startingFromId }: { roomId: IRoom['_id']; startingFromId?: string }) => {
+	const getFiles = useEndpoint('GET', '/v1/rooms.images');
+
+	const count = 5;
+
+	return useInfiniteQuery({
+		queryKey: roomsQueryKeys.images(roomId, { startingFromId }),
+		queryFn: async ({ pageParam: offset }) => {
+			const { files, total } = await getFiles({
+				roomId,
+				startingFromId,
+				offset,
+				count,
+			});
+
+			const items = files.map((file) => ({
+				...file,
+				uploadedAt: file.uploadedAt ? new Date(file.uploadedAt) : undefined,
+				modifiedAt: file.modifiedAt ? new Date(file.modifiedAt) : undefined,
+				expiresAt: file.expiresAt ? new Date(file.expiresAt) : undefined,
+				_updatedAt: new Date(file._updatedAt),
+			}));
+
+			for await (const file of items) {
+				if (file.rid && file.content) {
+					const e2eRoom = await e2e.getInstanceByRoomId(file.rid);
+					if (e2eRoom?.shouldConvertReceivedMessages()) {
+						const decrypted = await e2e.decryptFileContent(file);
+						const key = Base64.encode(
+							JSON.stringify({
+								...decrypted.encryption,
+								name: String.fromCharCode(...new TextEncoder().encode(decrypted.name)),
+								type: decrypted.type,
+							}),
+						);
+						decrypted.path = `/file-decrypt${decrypted.path}?key=${encodeURIComponent(key)}`;
+						Object.assign(file, decrypted);
+					}
+				}
+			}
+
+			return {
+				items,
+				itemCount: total,
+			};
+		},
+		initialPageParam: 0,
+		getNextPageParam: (lastPage, _, lastOffset) => {
+			const nextOffset = lastOffset + count;
+			if (nextOffset >= lastPage.itemCount) return undefined;
+			return nextOffset;
+		},
+		// Remove duplicates while preserving order
+		select: ({ pages }) => Array.from(new Map(pages.flatMap((page) => page.items.map((item) => [item._id, item]))).values()),
+	});
+};