47 lines
1.2 KiB
Dart
47 lines
1.2 KiB
Dart
import 'dart:async';
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import 'dart:typed_data';
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import 'package:web_socket_channel/html.dart';
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import 'package:web_socket_channel/web_socket_channel.dart';
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import 'websocket_transport_base.dart';
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/// Web WebSocket transport using HtmlWebSocketChannel.
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class WebSocketTransport extends WebSocketTransportBase {
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WebSocketTransport({
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super.initialReconnectDelay,
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super.maxReconnectDelay,
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super.backoffFactor,
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});
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WebSocketChannel? _channel;
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StreamSubscription<dynamic>? _sub;
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@override
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Future<void> openPlatform(String url) async {
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_channel = HtmlWebSocketChannel.connect(Uri.parse(url));
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await _channel!.ready;
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_sub = _channel!.stream.listen(
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(dynamic message) {
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if (message is Uint8List) {
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onBytes(message);
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} else if (message is ByteBuffer) {
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onBytes(message.asUint8List());
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} else if (message is List<int>) {
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onBytes(Uint8List.fromList(message));
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}
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},
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onError: (_) => onChannelClosed(),
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onDone: onChannelClosed,
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cancelOnError: true,
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);
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}
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@override
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Future<void> closePlatform() async {
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await _sub?.cancel();
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_sub = null;
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await _channel?.sink.close(1000); // Normal closure.
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_channel = null;
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}
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} |