refactor: Remove workaround for download files

lib/utils/matrix_sdk_extensions/matrix_file_extension.dart

@@ -1,46 +1,26 @@
-import 'dart:io';
-
 import 'package:flutter/material.dart';
 
 import 'package:file_picker/file_picker.dart';
 import 'package:matrix/matrix.dart';
 import 'package:share_plus/share_plus.dart';
-import 'package:universal_html/html.dart' as html;
 
 import 'package:fluffychat/l10n/l10n.dart';
-import 'package:fluffychat/utils/platform_infos.dart';
 import 'package:fluffychat/utils/size_string.dart';
-import 'package:fluffychat/widgets/future_loading_dialog.dart';
 
 extension MatrixFileExtension on MatrixFile {
   void save(BuildContext context) async {
-    if (PlatformInfos.isWeb) {
-      _webDownload();
-      return;
-    }
-
+    final scaffoldMessenger = ScaffoldMessenger.of(context);
+    final l10n = L10n.of(context);
     final downloadPath = await FilePicker.platform.saveFile(
-      dialogTitle: L10n.of(context).saveFile,
+      dialogTitle: l10n.saveFile,
       fileName: name,
       type: filePickerFileType,
       bytes: bytes,
     );
     if (downloadPath == null) return;
 
-    if (PlatformInfos.isDesktop) {
-      final result = await showFutureLoadingDialog(
-        context: context,
-        future: () => File(downloadPath).writeAsBytes(bytes),
-      );
-      if (result.error != null) return;
-    }
-
-    ScaffoldMessenger.of(context).showSnackBar(
-      SnackBar(
-        content: Text(
-          L10n.of(context).fileHasBeenSavedAt(downloadPath),
-        ),
-      ),
+    scaffoldMessenger.showSnackBar(
+      SnackBar(content: Text(l10n.fileHasBeenSavedAt(downloadPath))),
     );
   }
 
@@ -51,19 +31,6 @@ extension MatrixFileExtension on MatrixFile {
     return FileType.any;
   }
 
-  void _webDownload() {
-    html.AnchorElement(
-      href: html.Url.createObjectUrlFromBlob(
-        html.Blob(
-          [bytes],
-          mimeType,
-        ),
-      ),
-    )
-      ..download = name
-      ..click();
-  }
-
   void share(BuildContext context) async {
     // Workaround for iPad from
     // https://github.com/fluttercommunity/plus_plugins/tree/main/packages/share_plus/share_plus#ipad

macos/Podfile.lock

@@ -5,6 +5,8 @@ PODS:
     - FlutterMacOS
   - desktop_drop (0.0.1):
     - FlutterMacOS
+  - desktop_webview_window (0.0.1):
+    - FlutterMacOS
   - device_info_plus (0.0.1):
     - FlutterMacOS
   - dynamic_color (0.0.2):
@@ -79,6 +81,7 @@ DEPENDENCIES:
   - app_links (from `Flutter/ephemeral/.symlinks/plugins/app_links/macos`)
   - audio_session (from `Flutter/ephemeral/.symlinks/plugins/audio_session/macos`)
   - desktop_drop (from `Flutter/ephemeral/.symlinks/plugins/desktop_drop/macos`)
+  - desktop_webview_window (from `Flutter/ephemeral/.symlinks/plugins/desktop_webview_window/macos`)
   - device_info_plus (from `Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos`)
   - dynamic_color (from `Flutter/ephemeral/.symlinks/plugins/dynamic_color/macos`)
   - emoji_picker_flutter (from `Flutter/ephemeral/.symlinks/plugins/emoji_picker_flutter/macos`)
@@ -120,6 +123,8 @@ EXTERNAL SOURCES:
     :path: Flutter/ephemeral/.symlinks/plugins/audio_session/macos
   desktop_drop:
     :path: Flutter/ephemeral/.symlinks/plugins/desktop_drop/macos
+  desktop_webview_window:
+    :path: Flutter/ephemeral/.symlinks/plugins/desktop_webview_window/macos
   device_info_plus:
     :path: Flutter/ephemeral/.symlinks/plugins/device_info_plus/macos
   dynamic_color:
@@ -181,6 +186,7 @@ SPEC CHECKSUMS:
   app_links: 05a6ec2341985eb05e9f97dc63f5837c39895c3f
   audio_session: eaca2512cf2b39212d724f35d11f46180ad3a33e
   desktop_drop: 10a3e6a7fa9dbe350541f2574092fecfa345a07b
+  desktop_webview_window: 7e37af677d6d19294cb433d9b1d878ef78dffa4d
   device_info_plus: 4fb280989f669696856f8b129e4a5e3cd6c48f76
   dynamic_color: cb7c2a300ee67ed3bd96c3e852df3af0300bf610
   emoji_picker_flutter: 51ca408e289d84d1e460016b2a28721ec754fcf7