47 lines
1.1 KiB
Dart
47 lines
1.1 KiB
Dart
import 'dart:collection';
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import 'dart:isolate';
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import 'package:flutter_background_service/flutter_background_service.dart';
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typedef ListenerCallback = void Function(Map<String, dynamic>? args);
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class ServiceInterface {
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final ReceivePort? receivePort;
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late SendPort sendPort;
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final ServiceInstance? service;
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bool _isListening = false;
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final _listeners = HashMap<String, ListenerCallback>();
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ServiceInterface({this.receivePort, this.service})
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: assert(receivePort != null || service != null);
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void on(String method, ListenerCallback listener) {
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if (service != null) {
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service!.on(method).listen(listener);
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}
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if (!_isListening) {
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_isListening = true;
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receivePort!.listen((message) {
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final method = message['_'];
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_listeners[method]!.call(message);
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});
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}
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_listeners[method] = listener;
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}
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void no(String method) {
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_listeners.remove(method);
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}
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void send(String method, [Map<String, dynamic>? args]) {
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if (service != null) {
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return service!.invoke(method, args);
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}
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sendPort!.send({'_': method, if (args != null) ...args});
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}
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}
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