fluffychat/lib/utils/matrix_sdk_extensions.dart/event_extension.dart
2022-07-22 13:15:20 +02:00

86 lines
2.8 KiB
Dart

import 'package:flutter/foundation.dart';
import 'package:flutter/material.dart';
import 'package:flutter_cache_manager/flutter_cache_manager.dart';
import 'package:future_loading_dialog/future_loading_dialog.dart';
import 'package:matrix/matrix.dart';
import 'package:fluffychat/utils/size_string.dart';
import 'matrix_file_extension.dart';
extension LocalizedBody on Event {
Future<LoadingDialogResult<MatrixFile?>> _getFile(BuildContext context) =>
showFutureLoadingDialog(
context: context,
future: () => downloadAndDecryptAttachmentCached(),
);
void saveFile(BuildContext context) async {
final matrixFile = await _getFile(context);
matrixFile.result?.save(context);
}
void shareFile(BuildContext context) async {
final matrixFile = await _getFile(context);
matrixFile.result?.share(context);
}
bool get isAttachmentSmallEnough =>
infoMap['size'] is int &&
infoMap['size'] < room.client.database!.maxFileSize;
bool get isThumbnailSmallEnough =>
thumbnailInfoMap['size'] is int &&
thumbnailInfoMap['size'] < room.client.database!.maxFileSize;
bool get showThumbnail =>
[MessageTypes.Image, MessageTypes.Sticker, MessageTypes.Video]
.contains(messageType) &&
(kIsWeb ||
isAttachmentSmallEnough ||
isThumbnailSmallEnough ||
(content['url'] is String));
String? get sizeString => content
.tryGetMap<String, dynamic>('info')
?.tryGet<int>('size')
?.sizeString;
static final _downloadAndDecryptFutures = <String, Future<MatrixFile>>{};
Future<bool> isAttachmentCached({bool getThumbnail = false}) async {
final mxcUrl = attachmentOrThumbnailMxcUrl(getThumbnail: getThumbnail);
if (mxcUrl == null) return false;
// check if we have it in-memory
if (_downloadAndDecryptFutures.containsKey(mxcUrl)) {
return true;
}
// check if it is stored
if (await isAttachmentInLocalStore(getThumbnail: getThumbnail)) {
return true;
}
// check if the url is cached
final url = mxcUrl.getDownloadLink(room.client);
final file = await DefaultCacheManager().getFileFromCache(url.toString());
return file != null;
}
Future<MatrixFile?> downloadAndDecryptAttachmentCached(
{bool getThumbnail = false}) async {
final mxcUrl =
attachmentOrThumbnailMxcUrl(getThumbnail: getThumbnail)?.toString() ??
eventId;
_downloadAndDecryptFutures[mxcUrl] ??= downloadAndDecryptAttachment(
getThumbnail: getThumbnail,
downloadCallback: (Uri url) async {
final file = await DefaultCacheManager().getSingleFile(url.toString());
return await file.readAsBytes();
},
);
final res = await _downloadAndDecryptFutures[mxcUrl];
return res;
}
}