first commit

lib/filament_controller.dart

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+import 'package:flutter/services.dart';
+
+abstract class FilamentController {
+  void onFilamentViewCreated(int id);
+  Future initialize();
+  Future loadSkybox(String skyboxPath, String lightingPath);
+  Future loadGlb(String path);
+}
+
+class MimeticFilamentController extends FilamentController {
+  late int _id;
+  late MethodChannel _channel;
+
+  @override
+  void onFilamentViewCreated(int id) async {
+    _id = id;
+    _channel = MethodChannel("mimetic.app/filament_view_$id");
+  }
+
+  @override
+  Future initialize() async {
+    await _channel.invokeMethod("initialize");
+  }
+
+  @override
+  Future loadSkybox(String path) {
+    throw Exception();
+  }
+
+  Future loadGlb(String path) {
+    throw Exception();
+  }
+}

lib/mimetic_filament.dart

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+
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+
+class MimeticFilament {
+  static const MethodChannel _channel = MethodChannel('mimetic_filament');
+
+  static Future<String?> get platformVersion async {
+    final String? version = await _channel.invokeMethod('getPlatformVersion');
+    return version;
+  }
+}

lib/mimetic_filament_plugin.dart

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+// You have generated a new plugin project without
+// specifying the `--platforms` flag. A plugin project supports no platforms is generated.
+// To add platforms, run `flutter create -t plugin --platforms <platforms> .` under the same
+// directory. You can also find a detailed instruction on how to add platforms in the `pubspec.yaml` at https://flutter.dev/docs/development/packages-and-plugins/developing-packages#plugin-platforms.
+
+import 'dart:async';
+
+import 'package:flutter/services.dart';
+
+class MimeticFilamentPlugin {
+  static const MethodChannel _channel = MethodChannel('mimetic_filament');
+
+  static Future<String?> get platformVersion async {
+    final String? version = await _channel.invokeMethod('getPlatformVersion');
+    return version;
+  }
+
+  static void initialize() {}
+}

lib/view/filament_view.dart

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+import 'package:flutter/foundation.dart';
+import 'package:flutter/gestures.dart';
+import 'package:flutter/rendering.dart';
+import 'package:flutter/services.dart';
+import 'package:flutter/widgets.dart';
+
+import '../../filament_controller.dart';
+import 'filament_view_platform.dart';
+
+class FilamentView extends FilamentViewPlatform {
+  static const FILAMENT_VIEW_ID = 'mimetic.app/filament_view';
+
+  @override
+  Widget buildView(
+    int creationId,
+    FilamentViewCreatedCallback onFilamentViewCreated,
+  ) {
+    switch (defaultTargetPlatform) {
+      case TargetPlatform.android:
+        return PlatformViewLink(
+          viewType: FILAMENT_VIEW_ID,
+          surfaceFactory:
+              (BuildContext context, PlatformViewController controller) {
+            return AndroidViewSurface(
+              controller: controller as AndroidViewController,
+              gestureRecognizers: const <
+                  Factory<OneSequenceGestureRecognizer>>{},
+              hitTestBehavior: PlatformViewHitTestBehavior.opaque,
+            );
+          },
+          onCreatePlatformView: (PlatformViewCreationParams params) {
+            return PlatformViewsService.initSurfaceAndroidView(
+              id: params.id,
+              viewType: FILAMENT_VIEW_ID,
+              layoutDirection: TextDirection.ltr,
+              creationParams: {},
+              creationParamsCodec: StandardMessageCodec(),
+            )
+              ..addOnPlatformViewCreatedListener((int id) {
+                onFilamentViewCreated(id);
+                params.onPlatformViewCreated(id);
+              })
+              ..create();
+          },
+        );
+      case TargetPlatform.iOS:
+        return UiKitView(
+          viewType: FILAMENT_VIEW_ID,
+          onPlatformViewCreated: (int id) {
+            onFilamentViewCreated(id);
+          },
+        );
+      default:
+        return Text(
+            '$defaultTargetPlatform is not yet implemented by Filament plugin.');
+    }
+  }
+}

lib/view/filament_view_platform.dart

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+import 'package:flutter/widgets.dart';
+import 'package:mimetic_filament/view/filament_view.dart';
+import 'package:plugin_platform_interface/plugin_platform_interface.dart';
+import '../../filament_controller.dart';
+
+typedef void FilamentViewCreatedCallback(int id);
+
+abstract class FilamentViewPlatform extends PlatformInterface {
+  FilamentViewPlatform() : super(token: _token);
+
+  static final Object _token = Object();
+  static FilamentViewPlatform _instance = FilamentView();
+
+  static FilamentViewPlatform get instance => _instance;
+
+  Widget buildView(
+    int creationId,
+    FilamentViewCreatedCallback onFilamentViewCreated,
+  ) {
+    throw UnimplementedError('buildView() has not been implemented.');
+  }
+}

lib/view/filament_widget.dart

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+import 'package:flutter/widgets.dart';
+
+import '../filament_controller.dart';
+import 'filament_view_platform.dart';
+
+int _nextFilamentCreationId = 0;
+
+class FilamentWidget extends StatefulWidget {
+  final FilamentController controller;
+
+  const FilamentWidget({Key? key, required this.controller}) : super(key: key);
+
+  @override
+  _FilamentWidgetState createState() => _FilamentWidgetState();
+}
+
+class _FilamentWidgetState extends State<FilamentWidget> {
+  final _viewId = _nextFilamentCreationId++;
+
+  @override
+  Widget build(BuildContext context) {
+    return FilamentViewPlatform.instance
+        .buildView(_viewId, widget.controller.onFilamentViewCreated);
+  }
+}