Initial commit

lib/utils/matrix_sdk_extensions/matrix_file_extension.dart

@@ -0,0 +1,70 @@
+// SPDX-FileCopyrightText: 2019-Present Christian Kußowski
+// SPDX-FileCopyrightText: 2019-Present Contributors to FluffyChat
+//
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+import 'package:file_picker/file_picker.dart';
+import 'package:tatchat/l10n/l10n.dart';
+import 'package:tatchat/utils/size_string.dart';
+import 'package:material_ui/material_ui.dart';
+import 'package:matrix/matrix.dart';
+import 'package:share_plus/share_plus.dart';
+
+extension MatrixFileExtension on MatrixFile {
+  Future<void> save(BuildContext context) async {
+    final scaffoldMessenger = ScaffoldMessenger.of(context);
+    final l10n = L10n.of(context);
+    final downloadPath = await FilePicker.saveFile(
+      dialogTitle: l10n.saveFile,
+      fileName: name,
+      type: filePickerFileType,
+      bytes: bytes,
+    );
+    if (downloadPath == null) return;
+
+    scaffoldMessenger.showSnackBar(
+      SnackBar(
+        content: Text(l10n.fileHasBeenSavedAt(downloadPath.toString())),
+        showCloseIcon: true,
+      ),
+    );
+  }
+
+  FileType get filePickerFileType {
+    if (this is MatrixImageFile) return FileType.image;
+    if (this is MatrixAudioFile) return FileType.audio;
+    if (this is MatrixVideoFile) return FileType.video;
+    return FileType.any;
+  }
+
+  Future<void> share(BuildContext context) async {
+    // Workaround for iPad from
+    // https://github.com/fluttercommunity/plus_plugins/tree/main/packages/share_plus/share_plus#ipad
+    final box = context.findRenderObject() as RenderBox?;
+
+    await SharePlus.instance.share(
+      ShareParams(
+        files: [XFile.fromData(bytes, name: name, mimeType: mimeType)],
+        sharePositionOrigin: box == null
+            ? null
+            : box.localToGlobal(Offset.zero) & box.size,
+      ),
+    );
+    return;
+  }
+
+  MatrixFile get detectFileType {
+    if (msgType == MessageTypes.Image) {
+      return MatrixImageFile(bytes: bytes, name: name);
+    }
+    if (msgType == MessageTypes.Video) {
+      return MatrixVideoFile(bytes: bytes, name: name);
+    }
+    if (msgType == MessageTypes.Audio) {
+      return MatrixAudioFile(bytes: bytes, name: name);
+    }
+    return this;
+  }
+
+  String get sizeString => size.sizeString;
+}