feat: file transfer tab works

Signed-off-by: Kingtous <kingtous@qq.com>

flutter/lib/desktop/pages/file_manager_page.dart

@@ -36,14 +36,13 @@ class _FileManagerPageState extends State<FileManagerPage>
   @override
   void initState() {
     super.initState();
-    Get.put(FFI(), tag: 'ft_${widget.id}');
-    _ffi.ffiModel.platformFFI = gFFI.ffiModel.platformFFI;
-
-    _ffi.connect(widget.id, isFileTransfer: true);
-    _ffi.ffiModel.updateEventListener(widget.id);
+    Get.put(FFI.newFFI()..connect(widget.id, isFileTransfer: true),
+        tag: 'ft_${widget.id}');
+    // _ffi.ffiModel.updateEventListener(widget.id);
     if (!Platform.isLinux) {
       Wakelock.enable();
     }
+    print("init success with id ${widget.id}");
   }
 
   @override

flutter/lib/models/file_model.dart

@@ -519,6 +519,10 @@ class FileModel extends ChangeNotifier {
     _currentRemoteDir.changeSortStyle(sort);
     notifyListeners();
   }
+
+  initFileFetcher() {
+    _fileFetcher.id = _ffi.target?.id;
+  }
 }
 
 class JobResultListener<T> {
@@ -566,6 +570,17 @@ class FileFetcher {
   Map<String, Completer<FileDirectory>> remoteTasks = Map();
   Map<int, Completer<FileDirectory>> readRecursiveTasks = Map();
 
+  String? _id;
+
+  String? get id => _id;
+
+  set id(String? id) {
+    _id = id;
+  }
+
+  // if id == null, means to fetch global FFI
+  FFI get _ffi => ffi(_id == null ? "" : 'ft_${_id}');
+
   Future<FileDirectory> registerReadTask(bool isLocal, String path) {
     // final jobs = isLocal?localJobs:remoteJobs; // maybe we will use read local dir async later
     final tasks = remoteTasks; // bypass now
@@ -633,13 +648,14 @@ class FileFetcher {
   Future<FileDirectory> fetchDirectory(
       String path, bool isLocal, bool showHidden) async {
     try {
-      final msg = {"path": path, "show_hidden": showHidden.toString()};
       if (isLocal) {
-        final res = gFFI.getByName("read_local_dir_sync", jsonEncode(msg));
+        final res = await _ffi.bind.sessionReadLocalDirSync(
+            id: id ?? "", path: path, showHidden: showHidden);
         final fd = FileDirectory.fromJson(jsonDecode(res));
         return fd;
       } else {
-        gFFI.setByName("read_remote_dir", jsonEncode(msg));
+        await _ffi.bind.sessionReadRemoteDir(
+            id: id ?? "", path: path, includeHidden: showHidden);
         return registerReadTask(isLocal, path);
       }
     } catch (e) {
@@ -657,7 +673,8 @@ class FileFetcher {
         "show_hidden": showHidden.toString(),
         "is_remote": (!isLocal).toString()
       };
-      gFFI.setByName("read_dir_recursive", jsonEncode(msg));
+      // TODO
+      _ffi.setByName("read_dir_recursive", jsonEncode(msg));
       return registerReadRecursiveTask(id);
     } catch (e) {
       return Future.error(e);

flutter/lib/models/model.dart

@@ -784,6 +784,13 @@ class FFI {
     this.fileModel = FileModel(WeakReference(this));
   }
 
+  static FFI newFFI() {
+    final ffi = FFI();
+    // keep platformFFI only once
+    ffi.ffiModel.platformFFI = gFFI.ffiModel.platformFFI;
+    return ffi;
+  }
+
   /// Get the remote id for current client.
   String getId() {
     return getByName('remote_id'); // TODO
@@ -888,32 +895,32 @@ class FFI {
       setByName('connect_file_transfer', id);
     } else {
       chatModel.resetClientMode();
-      // setByName('connect', id);
-      // TODO multi model instances
       canvasModel.id = id;
       imageModel._id = id;
       cursorModel.id = id;
-      final stream =
-          bind.sessionConnect(id: id, isFileTransfer: isFileTransfer);
-      final cb = ffiModel.startEventListener(id);
-      () async {
-        await for (final message in stream) {
-          if (message is Event) {
-            try {
-              debugPrint("event:${message.field0}");
-              Map<String, dynamic> event = json.decode(message.field0);
-              cb(event);
-            } catch (e) {
-              print('json.decode fail(): $e');
-            }
-          } else if (message is Rgba) {
-            imageModel.onRgba(message.field0);
-          }
-        }
-      }();
-      // every instance will bind a stream
     }
+    final stream = bind.sessionConnect(id: id, isFileTransfer: isFileTransfer);
+    final cb = ffiModel.startEventListener(id);
+    () async {
+      await for (final message in stream) {
+        if (message is Event) {
+          try {
+            debugPrint("event:${message.field0}");
+            Map<String, dynamic> event = json.decode(message.field0);
+            cb(event);
+          } catch (e) {
+            print('json.decode fail(): $e');
+          }
+        } else if (message is Rgba) {
+          imageModel.onRgba(message.field0);
+        }
+      }
+    }();
+    // every instance will bind a stream
     this.id = id;
+    if (isFileTransfer) {
+      this.fileModel.initFileFetcher();
+    }
   }
 
   /// Login with [password], choose if the client should [remember] it.

flutter/lib/models/native_model.dart

@@ -93,7 +93,12 @@ class PlatformFFI {
       _ffiBind = RustdeskImpl(dylib);
       _startListenEvent(_ffiBind); // global event
       try {
-        _homeDir = (await ExternalPath.getExternalStorageDirectories())[0];
+        if (isAndroid) {
+          // only support for android
+          _homeDir = (await ExternalPath.getExternalStorageDirectories())[0];
+        } else {
+          _homeDir = (await getDownloadsDirectory())?.path ?? "";
+        }
       } catch (e) {
         print(e);
       }

flutter/macos/Runner/bridge_generated.h

@@ -149,6 +149,11 @@ void wire_session_create_dir(int64_t port_,
                              struct wire_uint_8_list *path,
                              bool is_remote);
 
+void wire_session_read_local_dir_sync(int64_t port_,
+                                      struct wire_uint_8_list *id,
+                                      struct wire_uint_8_list *path,
+                                      bool show_hidden);
+
 struct wire_uint_8_list *new_uint_8_list(int32_t len);
 
 void free_WireSyncReturnStruct(struct WireSyncReturnStruct val);
@@ -194,6 +199,7 @@ static int64_t dummy_method_to_enforce_bundling(void) {
     dummy_var ^= ((int64_t) (void*) wire_session_remove_all_empty_dirs);
     dummy_var ^= ((int64_t) (void*) wire_session_cancel_job);
     dummy_var ^= ((int64_t) (void*) wire_session_create_dir);
+    dummy_var ^= ((int64_t) (void*) wire_session_read_local_dir_sync);
     dummy_var ^= ((int64_t) (void*) new_uint_8_list);
     dummy_var ^= ((int64_t) (void*) free_WireSyncReturnStruct);
     dummy_var ^= ((int64_t) (void*) store_dart_post_cobject);