fix: correctly load ts_helpers.js in workers (#1798)

* fix: correctly load ts_helpers.js in workers

* chore: remove redundant arguments

* feat: don't polyfill JavaProxy on worker

* chore: remove unneeded appDir

---------

Co-authored-by: farfromrefuge <>
Co-authored-by: Eduardo Speroni <edusperoni@gmail.com>

Author: farfromrefug

test-app/app/src/main/assets/internal/ts_helpers.js

@@ -170,6 +170,8 @@
 	Object.defineProperty(global, "__extends", { value: __extends });
 	Object.defineProperty(global, "__decorate", { value: __decorate });
 
-	global.JavaProxy = JavaProxy;
+	if (!global.__ns__worker) {
+		global.JavaProxy = JavaProxy;
+	}
 	global.Interfaces = Interfaces;
 })()

test-app/app/src/main/java/com/tns/RuntimeHelper.java

@@ -190,7 +190,7 @@ public static Runtime initRuntime(Context context) {
                     waitForLiveSync(context);
                 }
 
-                runtime.runScript(new File(appDir, "internal/ts_helpers.js"));
+//                runtime.runScript(new File(appDir, "internal/ts_helpers.js"));
 
                 File javaClassesModule = new File(appDir, "app/tns-java-classes.js");
                 if (javaClassesModule.exists()) {

test-app/runtime/src/main/cpp/Runtime.cpp

@@ -577,6 +577,7 @@ Isolate* Runtime::PrepareV8Runtime(const string& filesPath, const string& native
     else {
         m_isMainThread = false;
         auto postMessageFuncTemplate = FunctionTemplate::New(isolate, CallbackHandlers::WorkerGlobalPostMessageCallback);
+        globalTemplate->Set(ArgConverter::ConvertToV8String(isolate, "__ns__worker"), Boolean::New(isolate, true));
         globalTemplate->Set(ArgConverter::ConvertToV8String(isolate, "postMessage"), postMessageFuncTemplate);
         auto closeFuncTemplate = FunctionTemplate::New(isolate, CallbackHandlers::WorkerGlobalCloseCallback);
         globalTemplate->Set(ArgConverter::ConvertToV8String(isolate, "close"), closeFuncTemplate);

test-app/runtime/src/main/java/com/tns/Runtime.java

@@ -605,6 +605,7 @@ public static void initWorker(String jsFileName, String callingJsDir, int id) {
     private static Runtime initRuntime(DynamicConfiguration dynamicConfiguration) {
         Runtime runtime = new Runtime(staticConfiguration, dynamicConfiguration);
         runtime.init();
+        runtime.runScript(new File(staticConfiguration.appDir, "internal/ts_helpers.js"));
 
         return runtime;
     }