for merge

flutter/lib/models/web_model.dart

@@ -0,0 +1,60 @@
+import 'dart:typed_data';
+import 'dart:js' as js;
+
+import '../common.dart';
+import 'dart:html';
+import 'dart:async';
+
+final List<StreamSubscription<MouseEvent>> mouseListeners = [];
+final List<StreamSubscription<KeyboardEvent>> keyListeners = [];
+int lastMouseDownButtons = 0;
+bool mouseIn = false;
+
+class PlatformFFI {
+  static void clearRgbaFrame() {}
+
+  static Uint8List? getRgba() {
+    return js.context.callMethod('getRgba');
+  }
+
+  static String getByName(String name, [String arg = '']) {
+    return js.context.callMethod('getByName', [name, arg]);
+  }
+
+  static void setByName(String name, [String value = '']) {
+    js.context.callMethod('setByName', [name, value]);
+  }
+
+  static Future<Null> init() async {
+    isWeb = true;
+    isDesktop = !js.context.callMethod('isMobile');
+    js.context.callMethod('init');
+    version = getByName('version');
+  }
+
+  static void startDesktopWebListener() {
+    mouseIn = true;
+    mouseListeners.add(
+        window.document.onContextMenu.listen((evt) => evt.preventDefault()));
+  }
+
+  static void stopDesktopWebListener() {
+    mouseIn = true;
+    mouseListeners.forEach((l) {
+      l.cancel();
+    });
+    mouseListeners.clear();
+    keyListeners.forEach((l) {
+      l.cancel();
+    });
+    keyListeners.clear();
+  }
+
+  static void setMethodCallHandler(FMethod callback) {}
+
+  static Future<bool> invokeMethod(String method, [dynamic arguments]) async {
+    return true;
+  }
+}
+
+final localeName = window.navigator.language;