nyne/flutter_qjs
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add js module

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ekibun
2020-08-27 21:07:03 +08:00
parent ba35352b2a
commit 178b74b770
13 changed files with 119 additions and 77 deletions
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48
lib/flutter_qjs.dart
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@@ -3,7 +3,7 @@
* @Author: ekibun
* @Date: 2020-08-08 08:29:09
* @LastEditors: ekibun
* @LastEditTime: 2020-08-26 23:11:10
* @LastEditTime: 2020-08-27 18:23:47
*/
import 'dart:async';
import 'dart:io';
@@ -12,6 +12,9 @@ import 'package:flutter/services.dart';
/// Handle function to manage js call with `dart(method, ...args)` function.
typedef JsMethodHandler = Future<dynamic> Function(String method, List args);
/// Handle function to manage js module.
typedef JsModuleHandler = Future<String> Function(String name);
/// return this in [JsMethodHandler] to mark method not implemented.
class JsMethodHandlerNotImplement {}
@@ -30,14 +33,19 @@ class FlutterJs {
/// Set a handler to manage js call with `dart(method, ...args)` function.
setMethodHandler(JsMethodHandler handler) async {
await _ensureEngine();
_FlutterJs.instance.methodHandlers[_engine] = handler;
_FlutterJs.instance._methodHandlers[_engine] = handler;
}
/// Set a handler to manage js module.
setModuleHandler(JsModuleHandler handler) async {
await _ensureEngine();
_FlutterJs.instance._moduleHandlers[_engine] = handler;
}
/// Terminate thread and release memory.
destroy() async {
if (_engine != null) {
await _FlutterJs.instance._channel
.invokeMethod("close", _engine);
await _FlutterJs.instance._channel.invokeMethod("close", _engine);
_engine = null;
}
}
@@ -47,8 +55,7 @@ class FlutterJs {
await _ensureEngine();
var arguments = {"engine": _engine, "script": command, "name": name};
return _FlutterJs.instance._wrapFunctionArguments(
await _FlutterJs.instance._channel.invokeMethod("evaluate", arguments),
_engine);
await _FlutterJs.instance._channel.invokeMethod("evaluate", arguments), _engine);
}
}
@@ -57,17 +64,23 @@ class _FlutterJs {
static _FlutterJs get instance => _getInstance();
static _FlutterJs _instance;
MethodChannel _channel = const MethodChannel('soko.ekibun.flutter_qjs');
Map<dynamic, JsMethodHandler> methodHandlers =
Map<dynamic, JsMethodHandler>();
Map<dynamic, JsMethodHandler> _methodHandlers = Map<dynamic, JsMethodHandler>();
Map<dynamic, JsModuleHandler> _moduleHandlers = Map<dynamic, JsModuleHandler>();
_FlutterJs._internal() {
_channel.setMethodCallHandler((call) async {
var engine = call.arguments["engine"];
var args = call.arguments["args"];
if (methodHandlers[engine] == null) return call.noSuchMethod(null);
var ret = await methodHandlers[engine](
call.method, _wrapFunctionArguments(args, engine));
if (ret is JsMethodHandlerNotImplement) return call.noSuchMethod(null);
return ret;
if (args is List) {
if (_methodHandlers[engine] == null) return call.noSuchMethod(null);
var ret = await _methodHandlers[engine](call.method, _wrapFunctionArguments(args, engine));
if (ret is JsMethodHandlerNotImplement) return call.noSuchMethod(null);
return ret;
} else {
if (_moduleHandlers[engine] == null) return call.noSuchMethod(null);
var ret = await _moduleHandlers[engine](args);
if (ret is JsMethodHandlerNotImplement) return call.noSuchMethod(null);
return ret;
}
});
}
dynamic _wrapFunctionArguments(dynamic val, dynamic engine) {
@@ -83,13 +96,8 @@ class _FlutterJs {
if (val["__js_function__"] != null) {
var functionId = val["__js_function__"];
return (List<dynamic> args) async {
var arguments = {
"engine": engine,
"function": functionId,
"arguments": args
};
return _wrapFunctionArguments(
await _channel.invokeMethod("call", arguments), engine);
var arguments = {"engine": engine, "function": functionId, "arguments": args};
return _wrapFunctionArguments(await _channel.invokeMethod("call", arguments), engine);
};
} else
for (var key in val.keys) {