nyne/flutter_qjs
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0.2.0

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ekibun
2021-01-02 00:57:52 +08:00
parent d44af3d093
commit 045277dbe3
13 changed files with 278 additions and 185 deletions
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52
lib/flutter_qjs.dart
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@@ -23,9 +23,15 @@ class FlutterQjs {
Pointer _rt;
Pointer _ctx;
ReceivePort port = ReceivePort();
/// Set a handler to manage js call with `channel(method, args)` function.
JsMethodHandler methodHandler;
/// Set a handler to manage js module.
JsModuleHandler moduleHandler;
FlutterQjs({this.methodHandler, this.moduleHandler});
_ensureEngine() {
if (_rt != null) return;
_rt = jsNewRuntime((ctx, method, argv) {
@@ -61,18 +67,8 @@ class FlutterQjs {
_ctx = jsNewContextWithPromsieWrapper(_rt);
}
/// Set a handler to manage js call with `channel(method, args)` function.
setMethodHandler(JsMethodHandler handler) {
methodHandler = handler;
}
/// Set a handler to manage js module.
setModuleHandler(JsModuleHandler handler) {
moduleHandler = handler;
}
/// Free Runtime and Context which can be recreate when evaluate again.
recreate() {
close() {
if (_rt != null) {
jsFreeContext(_ctx);
jsFreeRuntime(_rt);
@@ -81,18 +77,10 @@ class FlutterQjs {
_ctx = null;
}
/// Close ReceivePort.
close() {
if (port != null) {
port.close();
recreate();
}
port = null;
}
/// DispatchMessage
Future<void> dispatch() async {
await for (var _ in port) {
if (_rt == null) continue;
while (true) {
int err = jsExecutePendingJob(_rt);
if (err <= 0) {
@@ -116,24 +104,14 @@ class FlutterQjs {
}
/// Evaluate js script.
Future<dynamic> evaluate(String command, {String name, int evalFlags}) async {
dynamic evaluate(String command, {String name, int evalFlags}) {
_ensureEngine();
var jsval =
jsEval(_ctx, command, name ?? "<eval>", evalFlags ?? JSEvalType.GLOBAL);
if (jsIsException(jsval) != 0) {
jsFreeValue(_ctx, jsval);
throw Exception(parseJSException(_ctx));
}
var ret = runtimeOpaques[_rt]?.promsieToFuture(jsval);
jsFreeValue(_ctx, jsval);
return ret;
}
/// Evaluate js script (Sync).
dynamic evaluateSync(String command, {String name, int evalFlags}) {
_ensureEngine();
var jsval =
jsEval(_ctx, command, name ?? "<eval>", evalFlags ?? JSEvalType.GLOBAL);
var jsval = jsEval(
_ctx,
command,
name ?? "<eval>",
evalFlags ?? JSEvalFlag.GLOBAL,
);
if (jsIsException(jsval) != 0) {
jsFreeValue(_ctx, jsval);
throw Exception(parseJSException(_ctx));