89 lines
No EOL
2.1 KiB
Dart
89 lines
No EOL
2.1 KiB
Dart
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// ignore_for_file: prefer_final_fields
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import 'package:protobuf/protobuf.dart';
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abstract class Communicator
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{
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Map<String, IDataHandler> _handlerDic = {};
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late Map<String, GeneratedMessage Function(List<int>)> _instanceGenerator;
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Communicator();
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void initialize(Map<String, GeneratedMessage Function(List<int>)> instanceGenerator)
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{
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_instanceGenerator = instanceGenerator;
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}
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T Function(List<int>) getGenerator<T extends GeneratedMessage>(String type)
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{
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if(!_instanceGenerator.containsKey(type))
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{
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throw Exception('Must set protobuf packet creator before use it. Type: ${(T).toString()}');
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}
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return _instanceGenerator[type] as T Function(List<int>);
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}
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Future send<T extends GeneratedMessage>(T data);
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void onReceivedData(String typeName, List<int> data)
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{
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if( _handlerDic.containsKey(typeName) ) {
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_handlerDic[typeName]?.onMessage(data);
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}
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}
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void addListener<T extends GeneratedMessage>(void Function(T) listener)
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{
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var type = T.toString();
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if(!_handlerDic.containsKey(type))
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{
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_handlerDic[type] = DataHandler<T>(getGenerator(type));
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}
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var handler = _handlerDic[type] as DataHandler<T>;
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handler.addListener(listener);
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}
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void removeListener<T extends GeneratedMessage>(void Function(T) listener)
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{
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var type = T.toString();
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if(_handlerDic.containsKey(type))
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{
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var handler = _handlerDic[type] as DataHandler<T>;
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handler.removeListener(listener);
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}
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}
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}
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abstract class IDataHandler
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{
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void onMessage(List<int> data);
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}
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class DataHandler<T extends GeneratedMessage> implements IDataHandler
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{
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T Function(List<int>) _generator;
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List<void Function(T)> _listeners = [];
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DataHandler(this._generator);
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@override
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void onMessage(List<int> data)
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{
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for(var listener in _listeners)
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{
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listener.call(_generator(data));
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}
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}
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void addListener(void Function(T) handler)
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{
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removeListener(handler); //중복 리스너 불허
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_listeners.add(handler);
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}
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void removeListener(void Function(T) handler)
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{
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_listeners.remove(handler);
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}
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} |