Refact. Build flutter web (#7472)

* Refact. Build flutter web

Signed-off-by: fufesou <shuanglongchen@yeah.net>

* Refact. Flutter web, wrap Platform.xx

Signed-off-by: fufesou <shuanglongchen@yeah.net>

---------

Signed-off-by: fufesou <shuanglongchen@yeah.net>

flutter/.gitignore

@@ -32,7 +32,6 @@
 /build/
 
 # Web related
-lib/generated_plugin_registrant.dart
 
 # Symbolication related
 app.*.symbols

flutter/lib/common.dart

@@ -1,12 +1,10 @@
 import 'dart:async';
 import 'dart:convert';
-import 'dart:ffi' hide Size;
 import 'dart:io';
 import 'dart:math';
 
 import 'package:back_button_interceptor/back_button_interceptor.dart';
 import 'package:desktop_multi_window/desktop_multi_window.dart';
-import 'package:ffi/ffi.dart';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/gestures.dart';
 import 'package:flutter/material.dart';
@@ -25,7 +23,6 @@ import 'package:get/get.dart';
 import 'package:uni_links/uni_links.dart';
 import 'package:url_launcher/url_launcher.dart';
 import 'package:uuid/uuid.dart';
-import 'package:win32/win32.dart' as win32;
 import 'package:window_manager/window_manager.dart';
 import 'package:window_size/window_size.dart' as window_size;
 
@@ -37,16 +34,24 @@ import 'models/input_model.dart';
 import 'models/model.dart';
 import 'models/platform_model.dart';
 
+import 'package:flutter_hbb/native/win32.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/win32.dart';
+import 'package:flutter_hbb/native/common.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/common.dart';
+
 final globalKey = GlobalKey<NavigatorState>();
 final navigationBarKey = GlobalKey();
 
-final isAndroid = Platform.isAndroid;
+final isAndroid = isAndroid_;
-final isIOS = Platform.isIOS;
+final isIOS = isIOS_;
-final isDesktop = Platform.isWindows || Platform.isMacOS || Platform.isLinux;
+final isWindows = isWindows_;
-var isWeb = false;
+final isMacOS = isMacOS_;
+final isLinux = isLinux_;
+final isDesktop = isDesktop_;
+final isWeb = isWeb_;
 var isWebDesktop = false;
 var isMobile = isAndroid || isIOS;
-var version = "";
+var version = '';
 int androidVersion = 0;
 
 /// only available for Windows target
@@ -2317,35 +2322,7 @@ WindowsTarget getWindowsTarget(int buildNumber) {
 /// [Note]
 /// Please use this function wrapped with `Platform.isWindows`.
 int getWindowsTargetBuildNumber() {
-  final rtlGetVersion = DynamicLibrary.open('ntdll.dll').lookupFunction<
+  return getWindowsTargetBuildNumber_();
-      Void Function(Pointer<win32.OSVERSIONINFOEX>),
-      void Function(Pointer<win32.OSVERSIONINFOEX>)>('RtlGetVersion');
-  final osVersionInfo = getOSVERSIONINFOEXPointer();
-  rtlGetVersion(osVersionInfo);
-  int buildNumber = osVersionInfo.ref.dwBuildNumber;
-  calloc.free(osVersionInfo);
-  return buildNumber;
-}
-
-/// Get Windows OS version pointer
-///
-/// [Note]
-/// Please use this function wrapped with `Platform.isWindows`.
-Pointer<win32.OSVERSIONINFOEX> getOSVERSIONINFOEXPointer() {
-  final pointer = calloc<win32.OSVERSIONINFOEX>();
-  pointer.ref
-    ..dwOSVersionInfoSize = sizeOf<win32.OSVERSIONINFOEX>()
-    ..dwBuildNumber = 0
-    ..dwMajorVersion = 0
-    ..dwMinorVersion = 0
-    ..dwPlatformId = 0
-    ..szCSDVersion = ''
-    ..wServicePackMajor = 0
-    ..wServicePackMinor = 0
-    ..wSuiteMask = 0
-    ..wProductType = 0
-    ..wReserved = 0;
-  return pointer;
 }
 
 /// Indicating we need to use compatible ui mode.

flutter/lib/main.dart

@@ -14,21 +14,21 @@ import 'package:flutter_hbb/desktop/screen/desktop_port_forward_screen.dart';
 import 'package:flutter_hbb/desktop/screen/desktop_remote_screen.dart';
 import 'package:flutter_hbb/desktop/widgets/refresh_wrapper.dart';
 import 'package:flutter_hbb/models/state_model.dart';
-import 'package:flutter_hbb/plugin/handlers.dart';
 import 'package:flutter_hbb/utils/multi_window_manager.dart';
 import 'package:flutter_localizations/flutter_localizations.dart';
 import 'package:get/get.dart';
 import 'package:provider/provider.dart';
 import 'package:window_manager/window_manager.dart';
 
-// import 'package:window_manager/window_manager.dart';
-
 import 'common.dart';
 import 'consts.dart';
 import 'mobile/pages/home_page.dart';
 import 'mobile/pages/server_page.dart';
 import 'models/platform_model.dart';
 
+import 'package:flutter_hbb/plugin/handlers.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/plugin/handlers.dart';
+
 /// Basic window and launch properties.
 int? kWindowId;
 WindowType? kWindowType;
@@ -36,6 +36,7 @@ late List<String> kBootArgs;
 
 Future<void> main(List<String> args) async {
   WidgetsFlutterBinding.ensureInitialized();
+
   debugPrint("launch args: $args");
   kBootArgs = List.from(args);
 

flutter/lib/models/desktop_render_texture.dart

@@ -3,11 +3,13 @@ import 'package:flutter_gpu_texture_renderer/flutter_gpu_texture_renderer.dart';
 import 'package:flutter_hbb/consts.dart';
 import 'package:flutter_hbb/models/model.dart';
 import 'package:get/get.dart';
-import 'package:texture_rgba_renderer/texture_rgba_renderer.dart';
 
 import '../../common.dart';
 import './platform_model.dart';
 
+import 'package:texture_rgba_renderer/texture_rgba_renderer.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/texture_rgba_renderer.dart';
+
 // Feature flutter_texture_render need to be enabled if feature gpucodec is enabled.
 final useTextureRender =
     bind.mainHasPixelbufferTextureRender() || bind.mainHasGpuTextureRender();

flutter/lib/models/model.dart

@@ -9,7 +9,6 @@ import 'package:desktop_multi_window/desktop_multi_window.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter/services.dart';
 import 'package:flutter_hbb/consts.dart';
-import 'package:flutter_hbb/generated_bridge.dart';
 import 'package:flutter_hbb/models/ab_model.dart';
 import 'package:flutter_hbb/models/chat_model.dart';
 import 'package:flutter_hbb/models/cm_file_model.dart';
@@ -39,6 +38,9 @@ import '../common/widgets/dialog.dart';
 import 'input_model.dart';
 import 'platform_model.dart';
 
+import 'package:flutter_hbb/generated_bridge.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/bridge.dart';
+
 typedef HandleMsgBox = Function(Map<String, dynamic> evt, String id);
 typedef ReconnectHandle = Function(OverlayDialogManager, SessionID, bool);
 final _constSessionId = Uuid().v4obj();

flutter/lib/models/platform_model.dart

@@ -1,5 +1,6 @@
-import 'package:flutter_hbb/generated_bridge.dart';
 import 'native_model.dart' if (dart.library.html) 'web_model.dart';
+import 'package:flutter_hbb/generated_bridge.dart'
+    if (dart.library.html) 'package:flutter_hbb/web/bridge.dart';
 
 final platformFFI = PlatformFFI.instance;
 final localeName = PlatformFFI.localeName;

flutter/lib/models/web_model.dart

@@ -3,15 +3,23 @@
 import 'dart:convert';
 import 'dart:typed_data';
 import 'dart:js';
-
-import '../common.dart';
 import 'dart:html';
 import 'dart:async';
 
+import 'package:flutter/foundation.dart';
+
+import 'package:flutter_hbb/web/bridge.dart';
+import 'package:flutter_hbb/common.dart';
+
 final List<StreamSubscription<MouseEvent>> mouseListeners = [];
 final List<StreamSubscription<KeyboardEvent>> keyListeners = [];
 
+typedef HandleEvent = Future<void> Function(Map<String, dynamic> evt);
+
 class PlatformFFI {
+  final _eventHandlers = <String, Map<String, HandleEvent>>{};
+  late RustdeskImpl _ffiBind;
+
   static String getByName(String name, [String arg = '']) {
     return context.callMethod('getByName', [name, arg]);
   }
@@ -24,15 +32,78 @@ class PlatformFFI {
   static final PlatformFFI instance = PlatformFFI._();
 
   static get localeName => window.navigator.language;
+  RustdeskImpl get ffiBind => _ffiBind;
 
-  static Future<void> init(String appType) async {
+  static Future<String> getVersion() async {
-    isWeb = true;
+    throw UnimplementedError();
+  }
+
+  bool registerEventHandler(
+      String eventName, String handlerName, HandleEvent handler) {
+    debugPrint('registerEventHandler $eventName $handlerName');
+    var handlers = _eventHandlers[eventName];
+    if (handlers == null) {
+      _eventHandlers[eventName] = {handlerName: handler};
+      return true;
+    } else {
+      if (handlers.containsKey(handlerName)) {
+        return false;
+      } else {
+        handlers[handlerName] = handler;
+        return true;
+      }
+    }
+  }
+
+  void unregisterEventHandler(String eventName, String handlerName) {
+    debugPrint('unregisterEventHandler $eventName $handlerName');
+    var handlers = _eventHandlers[eventName];
+    if (handlers != null) {
+      handlers.remove(handlerName);
+    }
+  }
+
+  Future<bool> tryHandle(Map<String, dynamic> evt) async {
+    final name = evt['name'];
+    if (name != null) {
+      final handlers = _eventHandlers[name];
+      if (handlers != null) {
+        if (handlers.isNotEmpty) {
+          for (var handler in handlers.values) {
+            await handler(evt);
+          }
+          return true;
+        }
+      }
+    }
+    return false;
+  }
+
+  String translate(String name, String locale) =>
+      _ffiBind.translate(name: name, locale: locale);
+
+  Uint8List? getRgba(SessionID sessionId, int display, int bufSize) {
+    throw UnimplementedError();
+  }
+
+  int getRgbaSize(SessionID sessionId, int display) =>
+      _ffiBind.sessionGetRgbaSize(sessionId: sessionId, display: display);
+  void nextRgba(SessionID sessionId, int display) =>
+      _ffiBind.sessionNextRgba(sessionId: sessionId, display: display);
+  void registerPixelbufferTexture(SessionID sessionId, int display, int ptr) =>
+      _ffiBind.sessionRegisterPixelbufferTexture(
+          sessionId: sessionId, display: display, ptr: ptr);
+  void registerGpuTexture(SessionID sessionId, int display, int ptr) =>
+      _ffiBind.sessionRegisterGpuTexture(
+          sessionId: sessionId, display: display, ptr: ptr);
+
+  Future<void> init(String appType) async {
     isWebDesktop = !context.callMethod('isMobile');
     context.callMethod('init');
     version = getByName('version');
   }
 
-  static void setEventCallback(void Function(Map<String, dynamic>) fun) {
+  void setEventCallback(void Function(Map<String, dynamic>) fun) {
     context["onGlobalEvent"] = (String message) {
       try {
         Map<String, dynamic> event = json.decode(message);
@@ -43,7 +114,7 @@ class PlatformFFI {
     };
   }
 
-  static void setRgbaCallback(void Function(Uint8List) fun) {
+  void setRgbaCallback(void Function(Uint8List) fun) {
     context["onRgba"] = (Uint8List? rgba) {
       if (rgba != null) {
         fun(rgba);
@@ -51,12 +122,12 @@ class PlatformFFI {
     };
   }
 
-  static void startDesktopWebListener() {
+  void startDesktopWebListener() {
     mouseListeners.add(
         window.document.onContextMenu.listen((evt) => evt.preventDefault()));
   }
 
-  static void stopDesktopWebListener() {
+  void stopDesktopWebListener() {
     for (var ml in mouseListeners) {
       ml.cancel();
     }
@@ -67,9 +138,14 @@ class PlatformFFI {
     keyListeners.clear();
   }
 
-  static void setMethodCallHandler(FMethod callback) {}
+  void setMethodCallHandler(FMethod callback) {}
 
-  static Future<bool> invokeMethod(String method, [dynamic arguments]) async {
+  invokeMethod(String method, [dynamic arguments]) async {
     return true;
   }
+
+  // just for compilation
+  void syncAndroidServiceAppDirConfigPath() {
+    throw UnimplementedError();
+  }
 }

flutter/lib/native/common.dart

@@ -0,0 +1,10 @@
+import 'dart:io';
+
+final isAndroid_ = Platform.isAndroid;
+final isIOS_ = Platform.isIOS;
+final isWindows_ = Platform.isWindows;
+final isMacOS_ = Platform.isWindows;
+final isLinux_ = Platform.isWindows;
+final isWeb_ = false;
+
+final isDesktop_ = Platform.isWindows || Platform.isMacOS || Platform.isLinux;

flutter/lib/native/win32.dart

@@ -0,0 +1,41 @@
+import 'dart:ffi' hide Size;
+
+import 'package:ffi/ffi.dart';
+
+import 'package:win32/win32.dart' as win32;
+
+/// Get windows target build number.
+///
+/// [Note]
+/// Please use this function wrapped with `Platform.isWindows`.
+int getWindowsTargetBuildNumber_() {
+  final rtlGetVersion = DynamicLibrary.open('ntdll.dll').lookupFunction<
+      Void Function(Pointer<win32.OSVERSIONINFOEX>),
+      void Function(Pointer<win32.OSVERSIONINFOEX>)>('RtlGetVersion');
+  final osVersionInfo = _getOSVERSIONINFOEXPointer();
+  rtlGetVersion(osVersionInfo);
+  int buildNumber = osVersionInfo.ref.dwBuildNumber;
+  calloc.free(osVersionInfo);
+  return buildNumber;
+}
+
+/// Get Windows OS version pointer
+///
+/// [Note]
+/// Please use this function wrapped with `Platform.isWindows`.
+Pointer<win32.OSVERSIONINFOEX> _getOSVERSIONINFOEXPointer() {
+  final pointer = calloc<win32.OSVERSIONINFOEX>();
+  pointer.ref
+    ..dwOSVersionInfoSize = sizeOf<win32.OSVERSIONINFOEX>()
+    ..dwBuildNumber = 0
+    ..dwMajorVersion = 0
+    ..dwMinorVersion = 0
+    ..dwPlatformId = 0
+    ..szCSDVersion = ''
+    ..wServicePackMajor = 0
+    ..wServicePackMinor = 0
+    ..wSuiteMask = 0
+    ..wProductType = 0
+    ..wReserved = 0;
+  return pointer;
+}

flutter/lib/web/common.dart

@@ -0,0 +1,9 @@
+
+final isAndroid_ = false;
+final isIOS_ = false;
+final isWindows_ = false;
+final isMacOS_ = false;
+final isLinux_ = false;
+final isWeb_ = true;
+
+final isDesktop_ = false;

flutter/lib/web/plugin/handlers.dart

@@ -0,0 +1,14 @@
+abstract class NativeHandler {
+  bool onEvent(Map<String, dynamic> evt);
+}
+
+class NativeUiHandler extends NativeHandler {
+  NativeUiHandler._();
+
+  static NativeUiHandler instance = NativeUiHandler._();
+
+  @override
+  bool onEvent(Map<String, dynamic> evt) {
+      throw UnimplementedError();
+  }
+}

flutter/lib/web/texture_rgba_renderer.dart

@@ -0,0 +1,20 @@
+import 'dart:typed_data';
+
+class TextureRgbaRenderer {
+  Future<int> createTexture(int key) {
+    throw UnimplementedError();
+  }
+
+  Future<bool> closeTexture(int key) {
+    throw UnimplementedError();
+  }
+
+  Future<bool> onRgba(
+      int key, Uint8List data, int height, int width, int strideAlign) {
+    throw UnimplementedError();
+  }
+
+  Future<int> getTexturePtr(int key) {
+    throw UnimplementedError();
+  }
+}

flutter/lib/web/win32.dart

@@ -0,0 +1,5 @@
+
+/// No use, for compilation only.
+int getWindowsTargetBuildNumber_() {
+  return 0;
+}