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multi engine

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ekibun
2020-08-15 16:47:01 +08:00
parent 7b35868c5c
commit 0ba5b045fa
6 changed files with 136 additions and 96 deletions
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79
lib/flutter_qjs.dart
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@@ -3,27 +3,31 @@
* @Author: ekibun
* @Date: 2020-08-08 08:29:09
* @LastEditors: ekibun
* @LastEditTime: 2020-08-15 13:58:11
* @LastEditTime: 2020-08-15 16:21:56
*/
import 'dart:async';
import 'package:flutter/services.dart';
class FlutterJs {
static const MethodChannel _channel = const MethodChannel('soko.ekibun.flutter_qjs');
typedef JsMethodHandler = Future<dynamic> Function(String method, List args);
static Future<dynamic> Function(String method, List args) methodHandler;
static Future<int> initEngine() async {
final int engineId = await _channel.invokeMethod("initEngine");
class _FlutterJs {
factory _FlutterJs() => _getInstance();
static _FlutterJs get instance => _getInstance();
static _FlutterJs _instance;
MethodChannel _channel = const MethodChannel('soko.ekibun.flutter_qjs');
Map<dynamic, JsMethodHandler> methodHandlers = Map<dynamic, JsMethodHandler>();
_FlutterJs._internal() {
_channel.setMethodCallHandler((call) async {
if (methodHandler == null) return call.noSuchMethod(null);
return await methodHandler(call.method, _wrapFunctionArguments(call.arguments));
print(call.arguments);
var engine = call.arguments["engine"];
var args = call.arguments["args"];
print(methodHandlers.entries);
print(methodHandlers[engine]);
if (methodHandlers[engine] == null) return call.noSuchMethod(null);
return await methodHandlers[engine](call.method, _wrapFunctionArguments(args));
});
return engineId;
}
static dynamic _wrapFunctionArguments(dynamic val) {
dynamic _wrapFunctionArguments(dynamic val) {
if (val is List) {
for (var i = 0; i < val.length; ++i) {
val[i] = _wrapFunctionArguments(val[i]);
@@ -35,20 +39,47 @@ class FlutterJs {
var arguments = {"function": functionId, "arguments": args};
return await _channel.invokeMethod("call", arguments);
};
}else for(var key in val.keys) {
val[key] = _wrapFunctionArguments(val[key]);
}
} else
for (var key in val.keys) {
val[key] = _wrapFunctionArguments(val[key]);
}
}
return val;
}
static Future<String> evaluate(String command, String name) async {
var arguments = {"script": command, "name": command};
final String jsResult = await _channel.invokeMethod("evaluate", arguments);
return jsResult ?? "null";
}
static Future<void> close() async {
return await _channel.invokeMethod("close");
static _FlutterJs _getInstance() {
if (_instance == null) {
_instance = new _FlutterJs._internal();
}
return _instance;
}
}
class FlutterJs {
dynamic _engine;
ensureEngine() async {
if(_engine == null){
_engine = await _FlutterJs.instance._channel.invokeMethod("createEngine");
}
}
setMethodHandler(JsMethodHandler handler) async {
await ensureEngine();
_FlutterJs.instance.methodHandlers[_engine] = handler;
}
destroy() async {
if (_engine != null){
await _FlutterJs.instance._channel.invokeMethod("close", {"engine": _engine});
_engine = null;
}
}
Future<dynamic> evaluate(String command, String name) async {
ensureEngine();
var arguments = {"engine": _engine, "script": command, "name": command};
return _FlutterJs.instance._wrapFunctionArguments(
await _FlutterJs.instance._channel.invokeMethod("evaluate", arguments));
}
}