[plugin] Update interface for Windows & flutter::TextureRegistrar

lib/dart_vlc.dart

@@ -11,12 +11,83 @@
 // ignore_for_file: implementation_imports
 import 'dart:io';
 import 'dart:typed_data';
+import 'package:flutter/services.dart';
+
 import 'package:dart_vlc/src/widgets/video.dart';
 import 'package:dart_vlc_ffi/src/internal/ffi.dart' as FFI;
 import 'package:dart_vlc_ffi/dart_vlc_ffi.dart' as FFI;
-export 'package:dart_vlc_ffi/dart_vlc_ffi.dart' hide DartVLC;
+export 'package:dart_vlc_ffi/dart_vlc_ffi.dart' hide DartVLC, Player;
 export 'package:dart_vlc/src/widgets/video.dart';
 
+/// Platform channel for using [Texture] & flutter::TextureRegistrar on Windows.
+final MethodChannel _channel = MethodChannel('dart_vlc')
+..setMethodCallHandler((call) async {
+  print(call.method);
+});
+
+
+/// A [Player] to open & play a [Media] or [Playlist] from file, network or asset.
+///
+/// Use [Player] constructor to create a new instance of a [Player].
+/// Provide a unique [id] while instanciating.
+///
+/// ```dart
+/// Player player = new Player(id: 0);
+/// ```
+///
+/// If you wish to use this instance for [Video] playback, then provide [videoWidth] & [videoHeight] optional parameters.
+/// Higher value may lead to degraded performance.
+///
+/// ```dart
+/// Player player = new Player(
+///   id: 0,
+///   videoWidth: 1920,
+///   videoHeight: 1080,
+/// );
+/// ```
+///
+/// Do not provide [videoWidth] & [videoHeight], if you wish to use the [Player] for only audio playback.
+///
+/// Use various methods & event streams avaiable to control & listen to events of the playback.
+///
+class Player extends FFI.Player {
+  int? textureId;
+
+  Player({
+    required int id,
+    int videoWidth: 0,
+    int videoHeight: 0,
+    List<String>? commandlineArguments
+  }) : super(id: id, videoWidth: videoWidth, videoHeight: videoHeight, commandlineArguments: commandlineArguments) {
+    if (this.videoHeight > 0 && this.videoWidth > 0 && Platform.isWindows) {
+      () async {
+        this.textureId = await _channel.invokeMethod(
+          'Player.onVideo',
+          {
+            'playerId': this.id,
+            'videoWidth': this.videoWidth,
+            'videoHeight': this.videoHeight
+          }
+        );
+      }();
+    }
+  }
+
+  @override
+  void dispose() {
+    super.dispose();
+    if (this.videoHeight > 0 && this.videoWidth > 0 && Platform.isWindows) {
+      _channel.invokeMethod(
+        'Player.dispose',
+        {
+          'playerId', this.id
+        }
+      );
+    }
+  }
+}
+
+
 /// Initializes the DartVLC plugin.
 ///
 /// ```dart

lib/src/experimental/video.dart

@@ -0,0 +1,19 @@
+import 'package:flutter/material.dart';
+import 'package:dart_vlc/dart_vlc.dart';
+
+
+class Video extends StatelessWidget {
+  final Player player;
+  const Video({Key? key, required this.player}) : super(key: key);
+
+  @override
+  Widget build(BuildContext context) {
+    return Container(
+      height: 360,
+      width: 480,
+      child: Texture(
+        textureId: this.player.textureId!,
+      ),
+    );
+  }
+}