refactor

flutter_hbb/lib/common.dart

@@ -1,19 +1,7 @@
 import 'package:flutter/material.dart';
-import 'package:ffi/ffi.dart';
-import 'package:path_provider/path_provider.dart';
-import 'dart:io';
-import 'dart:ffi';
 import 'dart:async';
-import 'dart:convert';
 import 'package:flutter_easyloading/flutter_easyloading.dart';
-import 'dart:typed_data';
-import 'dart:ui' as ui;
-
-class RgbaFrame extends Struct {
-  @Uint32()
-  int len;
-  Pointer<Uint8> data;
-}
+import 'model.dart';
 
 class HexColor extends Color {
   HexColor(final String hexColor) : super(_getColorFromHex(hexColor));
@@ -33,199 +21,6 @@ class MyTheme {
   static const Color accent = Color(0xFF0071FF);
 }
 
-typedef F1 = void Function(Pointer<Utf8>);
-typedef F2 = Pointer<Utf8> Function(Pointer<Utf8>, Pointer<Utf8>);
-typedef F3 = void Function(Pointer<Utf8>, Pointer<Utf8>);
-typedef F4 = void Function(Pointer<RgbaFrame>);
-typedef F5 = Pointer<RgbaFrame> Function();
-
-// https://juejin.im/post/6844903864852807694
-class FfiModel with ChangeNotifier {
-  FfiModel() {
-    init();
-  }
-
-  Future<Null> init() async {
-    await FFI.init();
-    notifyListeners();
-  }
-}
-
-class ImageModel with ChangeNotifier {
-  ui.Image _image;
-
-  ui.Image get image => _image;
-
-  void update(ui.Image image) {
-    _image = image;
-    notifyListeners();
-  }
-}
-
-class CursorModel with ChangeNotifier {
-  ui.Image _image;
-  final _images = Map<int, ui.Image>();
-  double _x = 0;
-  double _y = 0;
-  double _hotx = 0;
-  double _hoty = 0;
-
-  ui.Image get image => _image;
-  double get x => _x;
-  double get y => _y;
-
-  void updateCursorData(Map<String, dynamic> evt) {
-    var id = int.parse(evt['id']);
-    _hotx = double.parse(evt['hotx']);
-    _hoty = double.parse(evt['hoty']);
-    var width = int.parse(evt['width']);
-    var height = int.parse(evt['height']);
-    List<dynamic> colors = json.decode(evt['colors']);
-    final rgba = Uint8List.fromList(colors.map((s) => s as int).toList());
-    ui.decodeImageFromPixels(rgba, width, height, ui.PixelFormat.rgba8888,
-        (image) {
-      _image = image;
-      _images[id] = image;
-      notifyListeners();
-    });
-  }
-
-  void updateCursorId(Map<String, dynamic> evt) {
-    final tmp = _images[int.parse(evt['id'])];
-    if (tmp != null) {
-      _image = tmp;
-      notifyListeners();
-    }
-  }
-
-  void updateCursorPosition(Map<String, dynamic> evt) {
-    _x = double.parse(evt['x']);
-    _y = double.parse(evt['y']);
-    notifyListeners();
-  }
-
-  void clear() {
-    _image = null;
-    _images.clear();
-  }
-}
-
-class FFI {
-  static F1 _freeCString;
-  static F2 _getByName;
-  static F3 _setByName;
-  static F4 _freeRgba;
-  static F5 _getRgba;
-  static Pointer<RgbaFrame> _lastRgbaFrame;
-  static final imageModel = ImageModel();
-  static final ffiModel = FfiModel();
-  static final cursorModel = CursorModel();
-
-  static String getId() {
-    return getByName('remote_id');
-  }
-
-  static List<Peer> peers() {
-    try {
-      List<dynamic> peers = json.decode(getByName('peers'));
-      return peers
-          .map((s) => s as List<dynamic>)
-          .map((s) =>
-              Peer.fromJson(s[0] as String, s[1] as Map<String, dynamic>))
-          .toList();
-    } catch (e) {
-      print(e);
-    }
-    return [];
-  }
-
-  static void connect(String id) {
-    setByName('connect', id);
-  }
-
-  static void clearRgbaFrame() {
-    if (_lastRgbaFrame != null && _lastRgbaFrame != nullptr)
-      _freeRgba(_lastRgbaFrame);
-  }
-
-  static Uint8List getRgba() {
-    _lastRgbaFrame = _getRgba();
-    if (_lastRgbaFrame == null || _lastRgbaFrame == nullptr) return null;
-    final ref = _lastRgbaFrame.ref;
-    return Uint8List.sublistView(ref.data.asTypedList(ref.len));
-  }
-
-  static Map<String, dynamic> popEvent() {
-    var s = getByName('event');
-    if (s == '') return null;
-    try {
-      Map<String, dynamic> event = json.decode(s);
-      return event;
-    } catch (e) {
-      print(e);
-    }
-    return null;
-  }
-
-  static void login(String password, bool remember) {
-    setByName(
-        'login',
-        json.encode({
-          'password': password,
-          'remember': remember ? 'true' : 'false',
-        }));
-  }
-
-  static void close() {
-    setByName('close', '');
-    FFI.imageModel.update(null);
-    FFI.cursorModel.clear();
-  }
-
-  static void setByName(String name, String value) {
-    _setByName(Utf8.toUtf8(name), Utf8.toUtf8(value));
-  }
-
-  static String getByName(String name, {String arg = ''}) {
-    var p = _getByName(Utf8.toUtf8(name), Utf8.toUtf8(arg));
-    assert(p != nullptr && p != null);
-    var res = Utf8.fromUtf8(p);
-    // https://github.com/brickpop/flutter-rust-ffi
-    _freeCString(p);
-    return res;
-  }
-
-  static Future<Null> init() async {
-    final dylib = Platform.isAndroid
-        ? DynamicLibrary.open('librustdesk.so')
-        : DynamicLibrary.process();
-    _getByName = dylib.lookupFunction<F2, F2>('get_by_name');
-    _setByName =
-        dylib.lookupFunction<Void Function(Pointer<Utf8>, Pointer<Utf8>), F3>(
-            'set_by_name');
-    _freeCString = dylib
-        .lookupFunction<Void Function(Pointer<Utf8>), F1>('rust_cstr_free');
-    _freeRgba = dylib
-        .lookupFunction<Void Function(Pointer<RgbaFrame>), F4>('free_rgba');
-    _getRgba = dylib.lookupFunction<F5, F5>('get_rgba');
-    final dir = (await getApplicationDocumentsDirectory()).path;
-    setByName('init', dir);
-  }
-}
-
-class Peer {
-  final String id;
-  final String username;
-  final String hostname;
-  final String platform;
-
-  Peer.fromJson(String id, Map<String, dynamic> json)
-      : id = id,
-        username = json['username'],
-        hostname = json['hostname'],
-        platform = json['platform'];
-}
-
 // https://github.com/huangjianke/flutter_easyloading
 void showLoading(String text) {
   dismissLoading();