Initial commit

lib/utils/matrix_sdk_extensions/event_extension.dart

@@ -0,0 +1,68 @@
+// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
+// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:async/async.dart' as async;
+import 'package:tatchat/utils/size_string.dart';
+import 'package:tatchat/widgets/future_loading_dialog.dart';
+import 'package:flutter/foundation.dart';
+import 'package:material_ui/material_ui.dart';
+import 'package:matrix/matrix.dart';
+
+import 'matrix_file_extension.dart';
+
+extension LocalizedBody on Event {
+  Future<async.Result<MatrixFile?>> _getFile(BuildContext context) =>
+      showFutureLoadingDialog(
+        context: context,
+        futureWithProgress: (onProgress) {
+          final fileSize = infoMap['size'] is int
+              ? infoMap['size'] as int
+              : null;
+          return downloadAndDecryptAttachment(
+            onDownloadProgress: fileSize == null
+                ? null
+                : (bytes) => onProgress(bytes / fileSize),
+          );
+        },
+      );
+
+  Future<void> saveFile(BuildContext context) async {
+    final matrixFile = await _getFile(context);
+    if (!context.mounted) return;
+
+    matrixFile.result?.save(context);
+  }
+
+  Future<void> shareFile(BuildContext context) async {
+    final matrixFile = await _getFile(context);
+    if (!context.mounted) return;
+
+    matrixFile.result?.share(context);
+  }
+
+  bool get isAttachmentSmallEnough =>
+      infoMap['size'] is int &&
+      (infoMap['size'] as int) < room.client.database.maxFileSize;
+
+  bool get isThumbnailSmallEnough =>
+      thumbnailInfoMap['size'] is int &&
+      (thumbnailInfoMap['size'] as int) < 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, Object?>('info')
+      ?.tryGet<int>('size')
+      ?.sizeString;
+}