Пример #1
0
        private void CreateRegisterComponentFunction()
        {
            var id       = "registerComponent".ToJavaScriptPropertyId();
            var function = JavaScriptValue.CreateFunction(RegisterComponent, IntPtr.Zero);

            ChakraHost.GlobalObject.SetProperty(id, function, true);
        }
Пример #2
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        private static void DefineHostCallback(JavaScriptValue anObject, string callbackName, JavaScriptNativeFunction callback, IntPtr callbackData)
        {
            JavaScriptPropertyId propertyId = JavaScriptPropertyId.FromString(callbackName);
            JavaScriptValue      function   = JavaScriptValue.CreateFunction(callback, callbackData);

            anObject.SetProperty(propertyId, function, true);
        }
Пример #3
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        public void AddType(JavaScriptValue parent, string name, Type type)
        {
            // Create the function that will call the class constructor
            var constructor = JavaScriptValue.CreateFunction(new JavaScriptNativeFunction((callee, isConstructCall, arguments, argumentCount, callbackData) =>
            {
                return(ToJavaScriptValue(Activator.CreateInstance(type)));
            }));

            // Add static functions (e.g Console.WriteLine)
            if (type.IsClass && type != typeof(string))
            {
                // Get the properties and methods
                var methods = type.GetMethods(BindingFlags.DeclaredOnly | BindingFlags.Public | BindingFlags.Static)
                              .Where(m => !m.IsSpecialName && m.IsPrivate == false).ToList();

                // Loop through all methods
                foreach (var method in methods)
                {
                    SetMethod(constructor, method, null);
                }
            }

            // Set the property
            var childPropertyId = JavaScriptPropertyId.FromString(name);

            parent.SetProperty(childPropertyId, constructor, true);
        }
Пример #4
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        public void RegisterObject(string name, object obj)
        {
            var type = obj.GetType();

            using (new JavaScriptContext.Scope(context)) {
                var jsObj = JavaScriptValue.CreateObject();

                foreach (var m in type.GetMethods())
                {
                    var attrib = m.GetCustomAttribute <JsExport>();
                    if (attrib == null)
                    {
                        continue;
                    }

                    var funcName     = attrib.JavaScriptMethodName ?? m.Name;
                    var funcNameProp = JavaScriptPropertyId.FromString(funcName);

                    var funcDelegate = (JavaScriptNativeFunction)Delegate.CreateDelegate(typeof(JavaScriptNativeFunction), obj, m);
                    registeredFunctions.Add(funcDelegate);
                    var funcObj = JavaScriptValue.CreateFunction(funcDelegate);

                    jsObj.SetProperty(funcNameProp, funcObj, true);
                }

                var nameProp = JavaScriptPropertyId.FromString(name);
                JavaScriptValue.GlobalObject.SetProperty(nameProp, jsObj, true);
            }
        }
Пример #5
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        // Example: Register JavaScript object in current frame.
        private void RegisterJavaScriptExampleObject()
        {
            var jsDemo = JavaScriptValue.CreateObject();

            jsDemo.SetValue("executeJavaScriptWithoutRetval", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(() =>
                {
                    ExecuteJavaScript("alert(1+1)");
                });
                return(null);
            }));

            jsDemo.SetValue("executeJavaScriptWithRetval", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(async() =>
                {
                    var result = await EvaluateJavaScriptAsync("(function(){ return {a:1,b:'hello',c:(s)=>alert(s)}; })()");
                    if (result.Success)
                    {
                        var retval = result.ResultValue;
                        MessageBox.Show($"a={retval.GetInt("a")} b={retval.GetString("b")}", "Value from JS");
                        await retval.GetValue("c").ExecuteFunctionAsync(GetMainFrame(), new JavaScriptValue[] { JavaScriptValue.CreateString("Hello from C#") });
                    }
                });
                return(null);
            }));

            RegisterExternalObjectValue("jsExamples", jsDemo);
        }
Пример #6
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        public void Init()
        {
            JavaScriptNativeFunction printFunc = PrintFunc;

            registeredFunctions.Add(printFunc);
            JavaScriptNativeFunction httpFunc = JsXmlHttpRequest.JsConstructor;

            registeredFunctions.Add(httpFunc);

            using (new JavaScriptContext.Scope(context)) {
                var printFuncName = JavaScriptPropertyId.FromString("print");
                var printFuncObj  = JavaScriptValue.CreateFunction(printFunc);
                JavaScriptValue.GlobalObject.SetProperty(printFuncName, printFuncObj, true);

                var logObj      = JavaScriptValue.CreateObject();
                var logFuncName = JavaScriptPropertyId.FromString("log");
                logObj.SetProperty(logFuncName, printFuncObj, true);

                var consoleName = JavaScriptPropertyId.FromString("console");
                JavaScriptValue.GlobalObject.SetProperty(consoleName, logObj, true);

                var xmlHttpRequestName = JavaScriptPropertyId.FromString("XMLHttpRequest");
                var httpFuncObj        = JavaScriptValue.CreateFunction(httpFunc);
                JavaScriptValue.GlobalObject.SetProperty(xmlHttpRequestName, httpFuncObj, true);
            }
        }
Пример #7
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        private void CreateRunShibaAppFunction()
        {
            var id       = "runShibaApp".ToJavaScriptPropertyId();
            var function = JavaScriptValue.CreateFunction(RunShibaApp, IntPtr.Zero);

            ChakraHost.GlobalObject.SetProperty(id, function, true);
        }
 private void InstallNativeRequire()
 {
     _nativeRequire = NativeRequire;
     EnsureGlobalObject().SetProperty(
         JavaScriptPropertyId.FromString("nativeRequire"),
         JavaScriptValue.CreateFunction(_nativeRequire),
         true);
 }
Пример #9
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        static void _define(JavaScriptValue globalObject, string callbackName, JavaScriptNativeFunction callback)
        {
            JavaScriptPropertyId propertyId = JavaScriptPropertyId.FromString(callbackName);
            JavaScriptValue      function   = JavaScriptValue.CreateFunction(callback, IntPtr.Zero);

            globalObject.SetProperty(propertyId, function, true);
            m_apis.Add(callbackName);
        }
Пример #10
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 public void RegisterGlobalFunction(string name, JavaScriptNativeFunction func)
 {
     registeredFunctions.Add(func);
     using (new JavaScriptContext.Scope(context)) {
         var funcName = JavaScriptPropertyId.FromString(name);
         var funcObj  = JavaScriptValue.CreateFunction(func);
         JavaScriptValue.GlobalObject.SetProperty(funcName, funcObj, true);
     }
 }
Пример #11
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        /// <summary>
        /// This method creates a new <see cref="JavaScriptValue"/> representing a JavaScript function, and
        /// performs the binding of the resulting function with the native host function.
        /// </summary>
        /// <param name="func">The host function used to create the JavaScript function and binding.</param>
        /// <param name="instanceData">A pointer to the instance data that shoukld be passed on each execution of the instance.</param>
        public JavaScriptValue BindInstanceFunction(JavaScriptNativeFunction func, IntPtr instanceData)
        {
            return(_scope.Run(() =>
            {
                var jsValue = JavaScriptValue.CreateFunction(func, instanceData);

                return jsValue;
            }));
        }
Пример #12
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            private void DefineCallback
                (JavaScriptValue hostObject, string callbackName, JavaScriptNativeFunction callbackDelegate)
            {
                var propertyId = JavaScriptPropertyId.FromString(callbackName);

                var function = JavaScriptValue.CreateFunction(callbackDelegate);

                hostObject.SetProperty(propertyId, function, true);
            }
        private void InitializeChakra()
        {
            JavaScriptContext.Current = _runtime.CreateContext();

            _nativeLoggingHook = NativeLoggingHook;
            EnsureGlobalObject().SetProperty(
                JavaScriptPropertyId.FromString("nativeLoggingHook"),
                JavaScriptValue.CreateFunction(_nativeLoggingHook),
                true);
        }
        private static void DefineHostCallback(
            JavaScriptValue obj,
            string callbackName,
            JavaScriptNativeFunction callback)
        {
            var propertyId = JavaScriptPropertyId.FromString(callbackName);
            var function   = JavaScriptValue.CreateFunction(callback);

            obj.SetProperty(propertyId, function, true);
        }
Пример #15
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        /// <summary>
        /// This method creates a new <see cref="JavaScriptValue"/> representing a JavaScript function, and
        /// performs the binding of the resulting function with the native host function. This ensures that the
        /// host function will not be garbage collected as long as the JavaScript function has not been garbage
        /// collected.
        /// </summary>
        /// <param name="func">The host function used to create the JavaScript function and binding.</param>
        public JavaScriptValue BindFunction(JavaScriptNativeFunction func)
        {
            return(_scope.Run(() =>
            {
                var jsFunc = JsSafeDecorator.Decorate(func);
                var jsValue = JavaScriptValue.CreateFunction(jsFunc);
                Link(jsValue, jsFunc);

                return jsValue;
            }));
        }
        private void DefineHostCallback(JavaScriptValue globalObject, string callbackName, JavaScriptNativeFunction callback, IntPtr callbackData)
        {
            // Get property ID.
            JavaScriptPropertyId propertyId = JavaScriptPropertyId.FromString(callbackName);

            // Create a function
            JavaScriptValue function = JavaScriptValue.CreateFunction(callback, callbackData);

            // Set the property
            globalObject.SetProperty(propertyId, function, true);
        }
Пример #17
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        // Example: Map the CLR objects to NanUI's JavaScript context.
        private void MapClrObjectToJavaScript()
        {
            var obj = JavaScriptValue.CreateObject();

            // Readonly property
            obj.SetValue("now", JavaScriptValue.CreateProperty(() =>
            {
                return(JavaScriptValue.CreateDateTime(DateTime.Now));
            }));

            // Value
            obj.SetValue("version", JavaScriptValue.CreateString(Assembly.GetExecutingAssembly().GetName().Version?.ToString()));

            // Readable and writable property
            obj.SetValue("subtitle", JavaScriptValue.CreateProperty(() => JavaScriptValue.CreateString(Subtitle), title => Subtitle = title.GetString()));

            // Sync method
            obj.SetValue("messagebox", JavaScriptValue.CreateFunction(args =>
            {
                var msg = args.FirstOrDefault(x => x.IsString);

                var text = msg?.GetString();

                InvokeIfRequired(() =>
                {
                    MessageBox.Show(HostWindow, text, "Message from JS", MessageBoxButtons.OK, MessageBoxIcon.Information);
                });

                return(JavaScriptValue.CreateString(text));
            }));

            // Async method
            obj.SetValue("asyncmethod", JavaScriptValue.CreateFunction((args, callback) =>
            {
                Task.Run(async() =>
                {
                    var rnd = new Random(DateTime.Now.Millisecond);

                    var rndValue = rnd.Next(1000, 2000);

                    await Task.Delay(rndValue);
                    var obj = JavaScriptValue.CreateObject();

                    obj.SetValue("delayed", JavaScriptValue.CreateNumber(rndValue));
                    obj.SetValue("message", JavaScriptValue.CreateString($"Delayed {rndValue} milliseconds"));


                    callback.Success(obj);
                });
            }));

            RegisterExternalObjectValue("tester", obj);
        }
Пример #18
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 GenericWrapper(Type type)
 {
     this.type = type;
     if (!type.IsGenericTypeDefinition)
     {
         throw new ChakraSharpException("Generic definition only");
     }
     thisPtr      = GCHandle.Alloc(this);
     mainValueSrc = body;
     mainValue    = JavaScriptValue.CreateFunction(mainValueSrc, GCHandle.ToIntPtr(thisPtr));
     mainValue.AddRef();
 }
        public static JavaScriptValue JsConstructor(JavaScriptValue callee, bool isConstructCall, JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
        {
            if (!isConstructCall)
            {
                return(JavaScriptValue.Invalid);
            }

            IntPtr objId;

            do
            {
                objId = new IntPtr(new Random().Next());
            } while(instances.ContainsKey(objId));
            var jsObj     = JavaScriptValue.CreateExternalObject(objId, null);
            var actualObj = new JsXmlHttpRequest(jsObj);

            instances.Add(objId, actualObj);

            // Properties
            jsObj.SetProperty(JavaScriptPropertyId.FromString("readyState"), JavaScriptValue.FromInt32((int)ReadyStates.Unsent), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("response"), JavaScriptValue.FromString(""), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("responseText"), JavaScriptValue.FromString(""), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("responseType"), JavaScriptValue.FromString(""), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("responseUrl"), JavaScriptValue.FromString(""), true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("responseXML"), JavaScriptValue.Null, true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("status"), JavaScriptValue.FromInt32(0), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("statusText"), JavaScriptValue.FromString(""), true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("timeout"), JavaScriptValue.FromInt32(0), true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("upload"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("withCredentials"), JavaScriptValue.FromBoolean(false), true);

            // Event properties
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("onabort"), JavaScriptValue.Null, true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("onerror"), JavaScriptValue.Null, true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("onload"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("onloadstart"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("onprogress"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("ontimeout"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("onloadend"), JavaScriptValue.Null, true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("onreadystatechange"), JavaScriptValue.Null, true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("ontimeout"), JavaScriptValue.Null, true);

            // Methods
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("abort"), JavaScriptValue.CreateFunction(functions["abort"]), true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("getAllResponseHeaders"), JavaScriptValue.CreateFunction(functions["getAllResponseHeaders"]), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("open"), JavaScriptValue.CreateFunction(functions["open"]), true);
            //jsObj.SetProperty(JavaScriptPropertyId.FromString("overrideMimeType"), JavaScriptValue.CreateFunction(functions["overrideMimeType"]), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("send"), JavaScriptValue.CreateFunction(functions["send"]), true);
            jsObj.SetProperty(JavaScriptPropertyId.FromString("setRequestHeader"), JavaScriptValue.CreateFunction(functions["setRequestHeader"]), true);

            return(jsObj);
        }
Пример #20
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        private void DefineHostCallback(
            JavaScriptValue globalObject,
            string callbackName,
            JavaScriptNativeFunction callback,
            IntPtr callbackData)
        {
            var propertyId = JavaScriptPropertyId.FromString(callbackName);

            this.handles.Add(callback);
            var function = JavaScriptValue.CreateFunction(callback, callbackData);

            globalObject.SetProperty(propertyId, function, true);
        }
Пример #21
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 public JavaScriptValue GetJavaScriptValue()
 {
     if (!thisPtr.IsAllocated)
     {
         thisPtr = GCHandle.Alloc(this);
     }
     if (!jsvalue.IsValid)
     {
         jsvalueSrc = Wrap();
         jsvalue    = JavaScriptValue.CreateFunction(jsvalueSrc, GCHandle.ToIntPtr(thisPtr));
         jsvalue.AddRef();
     }
     return(jsvalue);
 }
Пример #22
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        public static void Set(PanelRenderer renderer = null)
        {
            Native.JsGetGlobalObject(out var globalObject);
            globalObject.SetProperty(JavaScriptPropertyId.FromString("global"), globalObject, true);

            SetConsoleLogObject(globalObject);

            if (renderer != null)
            {
                globalObject.SetProperty(
                    JavaScriptPropertyId.FromString("__HOSTCONFIG__"),
                    HostConfig.Create(),
                    true);

                globalObject.SetProperty(
                    JavaScriptPropertyId.FromString("__CONTAINER__"),
                    renderer.visualTree.ToJavaScriptValue(),
                    true);
            }

            var customFunctions = AppDomain.CurrentDomain.GetAssemblies()
                                  .Where(e => e.GetName().Name == "ReactUIElements" ||
                                         e.GetReferencedAssemblies().Any(a => a.Name == "ReactUIElements"))
                                  .SelectMany(e => e.DefinedTypes)
                                  .SelectMany(e => e.GetMethods())
                                  .Where(e => e.GetCustomAttribute <GlobalFunctionAttribute>() != null)
                                  .Select(e => new
            {
                attribute = e.GetCustomAttribute <GlobalFunctionAttribute>(),
                method    = e
            })
                                  .ToList();

            foreach (var customFunction in customFunctions)
            {
                if (!ValidateFunctionMethod(customFunction.method))
                {
                    Debug.Log("Custom global method must have the following signature static JavaScriptValue Function(JavaScriptValue callee, bool isconstructcall, JavaScriptValue[] arguments, ushort argumentcount, IntPtr callbackdata)");
                    continue;
                }

                var function = JavaScriptValue.CreateFunction(customFunction.attribute.Name, (JavaScriptNativeFunction)customFunction.method.CreateDelegate(typeof(JavaScriptNativeFunction)));

                globalObject.SetProperty(
                    JavaScriptPropertyId.FromString(customFunction.attribute.Name),
                    function,
                    true);
            }
        }
Пример #23
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        // Add methods for demo object in Formium.external object in JavaScript context.
        private void RegisterDemoWindowlObject()
        {
            var demoWindow = JavaScriptValue.CreateObject();

            const string GITHUB_URL = "https://github.com/NetDimension/NanUI";

            demoWindow.SetValue("openLicenseWindow", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(() =>
                {
                    ShowAboutDialog();
                });

                return(null);
            }));

            demoWindow.SetValue("navigateToGitHub", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(() =>
                {
                    OpenExternalUrl(GITHUB_URL);
                });

                return(null);
            }));

            demoWindow.SetValue("openDevTools", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(() =>
                {
                    ShowDevTools();
                });

                return(null);
            }));

            demoWindow.SetValue("openLocalFileResourceFolder", JavaScriptValue.CreateFunction(args =>
            {
                InvokeIfRequired(() =>
                {
                    OpenExternalUrl(System.IO.Path.Combine(Application.StartupPath, "LocalFiles"));
                });

                return(null);
            }));

            RegisterExternalObjectValue("demo", demoWindow);
        }
Пример #24
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        private Task <JavaScriptValue> ConvertPromiseToTask(JavaScriptValue promise)
        {
            // Get the 'then' function from the promise.
            var thenFunction = promise.GetProperty(JavaScriptPropertyId.FromString("then"));

            // Create resolve & reject callbacks and wire them to a TaskCompletionSource
            JavaScriptNativeFunction[]             state      = new JavaScriptNativeFunction[2];
            TaskCompletionSource <JavaScriptValue> completion = new TaskCompletionSource <JavaScriptValue>(state);
            var resolveFunc = JavaScriptValue.CreateFunction(
                state[0] = (callee, call, arguments, count, data) =>
            {
                if (count > 1)
                {
                    completion.TrySetResult(arguments[1]);
                }
                else
                {
                    completion.TrySetResult(JavaScriptValue.Undefined);
                }

                return(JavaScriptValue.Invalid);
            });
            var rejectFunc = JavaScriptValue.CreateFunction(
                state[1] = (callee, call, arguments, count, data) =>
            {
                if (count > 1)
                {
                    completion.TrySetException(new JavaScriptException(arguments[1]));
                }
                else
                {
                    completion.TrySetException(
                        new JavaScriptException(JavaScriptValue.FromString("Unknown exception in JavaScript promise rejection.")));
                }
                return(JavaScriptValue.Invalid);
            });

            // Register the callbacks with the promise using the 'then' function.
            thenFunction.CallFunction(promise, resolveFunc, rejectFunc);

            // Return a task which will complete when the promise completes.
            return(completion.Task);
        }
Пример #25
0
        private void DefineHostCallback(
            JavaScriptValue globalObject,
            string callbackName,
            AsyncJavaScriptNativeFunction callback, // Note: this one is async
            IntPtr callbackData)
        {
            var propertyId = JavaScriptPropertyId.FromString(callbackName);

            // Create a promise-returning function from our Task-returning function.
            JavaScriptNativeFunction nativeFunction = (callee, call, arguments, count, data) => this.jsTaskScheduler.CreatePromise(
                callback(callee, call, arguments, count, data));

            this.handles.Add(nativeFunction);
            var function = JavaScriptValue.CreateFunction(
                nativeFunction,
                callbackData);

            globalObject.SetProperty(propertyId, function, true);
        }
Пример #26
0
 public JavaScriptValue GetJavaScriptValue()
 {
     if (!value.IsValid)
     {
         if (isType)
         {
             typeWrapper = TypeWrapper.Wrap(type);
             value       = typeWrapper.GetJavaScriptValue();
         }
         else
         {
             value = JavaScriptValue.CreateObject();
             value.SetIndexedProperty(JavaScriptValue.FromString("toString"),
                                      JavaScriptValue.CreateFunction(InternalUtil.GetSavedStringDg, GCHandle.ToIntPtr(GCHandle.Alloc(path))));
         }
         value.AddRef();
         AssignToObject(value);
     }
     return(value);
 }
Пример #27
0
        void AssignFieldProc(JavaScriptValue setTo, FieldInfo[] fields)
        {
            var getpropid = JavaScriptPropertyId.FromString("get");
            var setpropid = JavaScriptPropertyId.FromString("set");

            foreach (var f in fields)
            {
                if (f.IsSpecialName)
                {
                    continue;
                }
                var desc  = JavaScriptValue.CreateObject();
                var id    = JavaScriptPropertyId.FromString(f.Name);
                var proxy = new FieldProxy(f);
                desc.SetProperty(getpropid, JavaScriptValue.CreateFunction(FieldProxy.FieldGetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                desc.SetProperty(setpropid, JavaScriptValue.CreateFunction(FieldProxy.FieldSetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                setTo.DefineProperty(id, desc);
                fieldWrappers.Add(proxy);
            }
        }
Пример #28
0
        void AssignPropertyProc(JavaScriptValue setTo, PropertyInfo[] props)
        {
            var getpropid = JavaScriptPropertyId.FromString("get");
            var setpropid = JavaScriptPropertyId.FromString("set");

            foreach (var info in props)
            {
                if (info.IsSpecialName)
                {
                    continue;
                }
                var desc  = JavaScriptValue.CreateObject();
                var id    = JavaScriptPropertyId.FromString(info.Name);
                var proxy = new PropertyProxy(info);
                desc.SetProperty(getpropid, JavaScriptValue.CreateFunction(PropertyProxy.PropertyGetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                desc.SetProperty(setpropid, JavaScriptValue.CreateFunction(PropertyProxy.PropertySetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                setTo.DefineProperty(id, desc);
                propertyWrappers.Add(proxy);
            }
        }
Пример #29
0
        void AssignToObject(JavaScriptValue obj)
        {
            if (children == null)
            {
                return;
            }
            var getpropid = JavaScriptPropertyId.FromString("get");
            var setpropid = JavaScriptPropertyId.FromString("set");

            foreach (var kv in children)
            {
                var n     = kv.Value;
                var t     = n.type;
                var prop  = JavaScriptPropertyId.FromString(n.name);
                var desc  = JavaScriptValue.CreateObject();
                var proxy = new PropertyProxy(n);
                propertyProxies.Add(proxy);
                desc.SetProperty(getpropid, JavaScriptValue.CreateFunction(PropertyProxy.PropertyGetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                desc.SetProperty(setpropid, JavaScriptValue.CreateFunction(PropertyProxy.PropertySetterDg, GCHandle.ToIntPtr(proxy.thisPtr)), true);
                obj.DefineProperty(prop, desc);
            }
        }
        public static JavaScriptValue CreateAndExecute(JavaScriptValue callee, bool isconstructcall, JavaScriptValue[] arguments, ushort argumentcount, IntPtr callbackdata)
        {
            var callback = arguments[1];
            var system   =
                World.DefaultGameObjectInjectionWorld.GetOrCreateSystem <EndSimulationEntityCommandBufferSystem>();
            var buffer = system.CreateCommandBuffer();

            var handle = GCHandle.Alloc(buffer, GCHandleType.Pinned);
            var ptr    = GCHandle.ToIntPtr(handle);

            var jsBuffer          = JavaScriptValue.CreateExternalObject(ptr, Finalizer);
            var jsBufferPrototype = JavaScriptValue.CreateObject();

            jsBufferPrototype.SetProperty(
                JavaScriptPropertyId.FromString("createEntity"),
                JavaScriptValue.CreateFunction("createEntity", CreateEntity), true);
            jsBufferPrototype.SetProperty(
                JavaScriptPropertyId.FromString("setComponent"),
                JavaScriptValue.CreateFunction("setComponent", SetComponent), true);
            jsBufferPrototype.SetProperty(
                JavaScriptPropertyId.FromString("destroyEntity"),
                JavaScriptValue.CreateFunction("destroyEntity", DestroyEntity), true);
            jsBuffer.Prototype = jsBufferPrototype;

            try
            {
                callback.CallFunction(JavaScriptValue.Undefined, jsBuffer);
            }
            catch (Exception ex)
            {
                Debug.LogError(ex);
            }


            handle.Free();

            return(JavaScriptValue.Undefined);
        }