public ChakraHost()
{
if (Native.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null, out runtime) !=
JavaScriptErrorCode.NoError)
{
throw new Exception("failed to create runtime.");
}
if (Native.JsCreateContext(runtime, out context) != JavaScriptErrorCode.NoError)
throw new Exception("failed to create execution context.");
ResetContext();
// ES6 Promise callback
JavaScriptPromiseContinuationCallback promiseContinuationCallback =
delegate (JavaScriptValue task, IntPtr callbackState)
{
promiseCallback = task;
};
if (Native.JsSetPromiseContinuationCallback(promiseContinuationCallback, IntPtr.Zero) !=
JavaScriptErrorCode.NoError)
throw new Exception("failed to setup callback for ES6 Promise");
// Projections
if (Native.JsProjectWinRTNamespace("ChakraBridge") != JavaScriptErrorCode.NoError)
throw new Exception("failed to project ChakraBridge namespace.");
//#if DEBUG
// // Debug
// if (Native.JsStartDebugging() != JavaScriptErrorCode.NoError)
// throw new Exception("failed to start debugging.");
//#endif
}
static async void ExecuteAsync(int delay, JavaScriptValue callbackValue, JavaScriptValue callee)
{
await Task.Delay(delay);
callbackValue.CallFunction(callee);
uint refCount;
Native.JsRelease(callbackValue, out refCount);
Native.JsRelease(callee, out refCount);
}
public ChakraHost()
{
if (Native.JsCreateRuntime(JavaScriptRuntimeAttributes.None, null, out runtime) !=
JavaScriptErrorCode.NoError)
{
throw new Exception("failed to create runtime.");
}
if (Native.JsCreateContext(runtime, out context) != JavaScriptErrorCode.NoError)
throw new Exception("failed to create execution context.");
if (Native.JsSetCurrentContext(context) != JavaScriptErrorCode.NoError)
throw new Exception("failed to set current context.");
// ES6 Promise callback
JavaScriptPromiseContinuationCallback promiseContinuationCallback =
delegate (JavaScriptValue task, IntPtr callbackState)
{
promiseCallback = task;
};
if (Native.JsSetPromiseContinuationCallback(promiseContinuationCallback, IntPtr.Zero) !=
JavaScriptErrorCode.NoError)
throw new Exception("failed to setup callback for ES6 Promise");
// Bind to global object
// setTimeout
SetTimeoutJavaScriptNativeFunction = SetTimeout.SetTimeoutJavaScriptNativeFunction;
DefineHostCallback("setTimeout", SetTimeoutJavaScriptNativeFunction);
SendToHostJavaScriptNativeFunction = CommunicationManager.SendToHostJavaScriptNativeFunction;
DefineHostCallback("sendToHost", SendToHostJavaScriptNativeFunction);
// Projections
if (Native.JsProjectWinRTNamespace("ChakraBridge") != JavaScriptErrorCode.NoError)
throw new Exception("failed to project ChakraBridge namespace.");
this.window = new Window();
ProjectObjectToGlobal(new Console(), "console");
ProjectObjectToGlobal(this.window, "window");
ProjectObjectToGlobal(this.window.navigator, "navigator");
ProjectObjectToGlobal(this.window.document, "document");
// Add references
RunScript(@"XMLHttpRequest = ChakraBridge.XMLHttpRequest;
HTMLCanvasElement = ChakraBridge.HTMLCanvasElementWrapper;
atob = window.atob;
btoa = window.btoa;");
#if DEBUG
// Debug
if (Native.JsStartDebugging() != JavaScriptErrorCode.NoError)
throw new Exception("failed to start debugging.");
#endif
}
public static JavaScriptValue SetTimeoutJavaScriptNativeFunction(JavaScriptValue callee, bool isConstructCall, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 3)] JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
{
// setTimeout signature is (callback, after)
JavaScriptValue callbackValue = arguments[1];
JavaScriptValue afterValue = arguments[2].ConvertToNumber();
var after = Math.Max(afterValue.ToDouble(), 1);
uint refCount;
Native.JsAddRef(callbackValue, out refCount);
Native.JsAddRef(callee, out refCount);
ExecuteAsync((int)after, callbackValue, callee);
return JavaScriptValue.True;
}
public static JavaScriptValue PrintJavaScriptNativeFunction(JavaScriptValue callee, bool isConstructCall, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 3)] JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
{
// setTimeout signature is (callback, after)
//JavaScriptValue callbackValue = arguments[1];
//JavaScriptValue afterValue = arguments[2].ConvertToNumber();
//var after = Math.Max(afterValue.ToDouble(), 1);
//uint refCount;
//Native.JsAddRef(callbackValue, out refCount);
//Native.JsAddRef(callee, out refCount);
//ExecuteAsync((int)after, callbackValue, callee);
if (arguments.Length > 0) {
String str = arguments[0].ConvertToString().ToString();
Debug.WriteLine("JsEngine.print", str);
}
return JavaScriptValue.True;
}
internal static JavaScriptValue SendToHostJavaScriptNativeFunction(JavaScriptValue callee, bool isConstructCall, [MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 3)] JavaScriptValue[] arguments, ushort argumentCount, IntPtr callbackData)
{
// sendToHost signature is (json, type)
JavaScriptValue jsonValue = arguments[1];
string json = jsonValue.ConvertToString().ToString();
JavaScriptValue typeValue = arguments[2];
string typename = typeValue.ConvertToString().ToString();
if (!RegisteredTypes.ContainsKey(typename))
{
throw new Exception("Not registered type found: " + typename);
}
var type = RegisteredTypes[typename];
var poco = JsonConvert.DeserializeObject(json, type);
OnObjectReceived?.Invoke(poco);
return JavaScriptValue.True;
}
public static extern JavaScriptErrorCode JsCreateNamedFunction(JavaScriptValue name, JavaScriptNativeFunction nativeFunction, IntPtr callbackState, out JavaScriptValue function);
public static extern JavaScriptErrorCode JsGetAndClearException(out JavaScriptValue exception);
public static extern JavaScriptErrorCode JsCreateFunction(JavaScriptNativeFunction nativeFunction, IntPtr externalData, out JavaScriptValue function);
internal static extern JavaScriptErrorCode JsGetNullValue(out JavaScriptValue nullValue);
public static extern JavaScriptErrorCode JsConstructObject(JavaScriptValue function, JavaScriptValue[] arguments, ushort argumentCount, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsNumberToInt(JavaScriptValue value, out int intValue);
internal static extern JavaScriptErrorCode JsRelease(JavaScriptValue reference, out uint count);
public static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out byte[] buffer, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
public static extern JavaScriptErrorCode JsGetDataViewStorage(JavaScriptValue dataView, out byte[] buffer, out uint bufferLength);
public static extern JavaScriptErrorCode JsCreateDataView(JavaScriptValue arrayBuffer, uint byteOffset, uint byteOffsetLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsGetArrayBufferStorage(JavaScriptValue arrayBuffer, out byte[] buffer, out uint bufferLength);
public static extern JavaScriptErrorCode JsCreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset,
uint elementLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsCreateArrayBuffer(uint byteLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsInspectableToObject([MarshalAs(UnmanagedType.IInspectable)] System.Object inspectable, out JavaScriptValue value);
internal static extern JavaScriptErrorCode JsCreateSymbol(JavaScriptValue description, out JavaScriptValue symbol);
public static extern JavaScriptErrorCode JsCreateSymbol(JavaScriptValue description, out JavaScriptValue symbol);
internal static extern JavaScriptErrorCode JsGetPropertyIdFromSymbol(JavaScriptValue symbol, out JavaScriptPropertyId propertyId);
public static extern JavaScriptErrorCode JsGetSymbolFromPropertyId(JavaScriptPropertyId propertyId, out JavaScriptValue symbol);
internal static extern JavaScriptErrorCode JsHasIndexedPropertiesExternalData(JavaScriptValue obj, out bool value);
public static extern JavaScriptErrorCode JsGetPropertyIdFromSymbol(JavaScriptValue symbol, out JavaScriptPropertyId propertyId);
internal static extern JavaScriptErrorCode JsRunSerializedScript(string script, byte[] buffer, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsCreateNamedFunction(JavaScriptValue name, JavaScriptNativeFunction nativeFunction, IntPtr callbackState, out JavaScriptValue function);
internal static extern JavaScriptErrorCode JsGetFalseValue(out JavaScriptValue falseValue);
internal static extern JavaScriptErrorCode JsCreateArrayBuffer(uint byteLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsSetException(JavaScriptValue exception);
internal static extern JavaScriptErrorCode JsCreateDataView(JavaScriptValue arrayBuffer, uint byteOffset, uint byteOffsetLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsCreateURIError(JavaScriptValue message, out JavaScriptValue error);
internal static extern JavaScriptErrorCode JsGetTypedArrayStorage(JavaScriptValue typedArray, out byte[] buffer, out uint bufferLength, out JavaScriptTypedArrayType arrayType, out int elementSize);
public static extern JavaScriptErrorCode JsGetOwnPropertySymbols(JavaScriptValue obj, out JavaScriptValue propertySymbols);
public static extern JavaScriptErrorCode JsSetObjectBeforeCollectCallback(JavaScriptValue reference, IntPtr callbackState, JavaScriptObjectBeforeCollectCallback beforeCollectCallback);
internal static extern JavaScriptErrorCode JsInspectableToObject([MarshalAs(UnmanagedType.IInspectable)] System.Object inspectable, out JavaScriptValue value);
public static extern JavaScriptErrorCode JsNumberToInt(JavaScriptValue value, out int intValue);
internal static extern JavaScriptErrorCode JsCreateTypedArray(JavaScriptTypedArrayType arrayType, JavaScriptValue arrayBuffer, uint byteOffset,
uint elementLength, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsGetIndexedPropertiesExternalData(JavaScriptValue obj, IntPtr data, out JavaScriptTypedArrayType arrayType, out uint elementLength);
internal static extern JavaScriptErrorCode JsGetArrayBufferStorage(JavaScriptValue arrayBuffer, out byte[] buffer, out uint bufferLength);
public static extern JavaScriptErrorCode JsHasIndexedPropertiesExternalData(JavaScriptValue obj, out bool value);
internal static extern JavaScriptErrorCode JsGetDataViewStorage(JavaScriptValue dataView, out byte[] buffer, out uint bufferLength);
public static extern JavaScriptErrorCode JsAddRef(JavaScriptValue reference, out uint count);
internal static extern JavaScriptErrorCode JsGetSymbolFromPropertyId(JavaScriptPropertyId propertyId, out JavaScriptValue symbol);
public static extern JavaScriptErrorCode JsRelease(JavaScriptValue reference, out uint count);
internal static extern JavaScriptErrorCode JsGetOwnPropertySymbols(JavaScriptValue obj, out JavaScriptValue propertySymbols);
public static extern JavaScriptErrorCode JsRunScript(string script, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsGetIndexedPropertiesExternalData(JavaScriptValue obj, IntPtr data, out JavaScriptTypedArrayType arrayType, out uint elementLength);
public static extern JavaScriptErrorCode JsRunSerializedScript(string script, byte[] buffer, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
internal static extern JavaScriptErrorCode JsAddRef(JavaScriptValue reference, out uint count);
public static extern JavaScriptErrorCode JsGetUndefinedValue(out JavaScriptValue undefinedValue);
internal static extern JavaScriptErrorCode JsRunScript(string script, JavaScriptSourceContext sourceContext, string sourceUrl, out JavaScriptValue result);
public static extern JavaScriptErrorCode JsGetNullValue(out JavaScriptValue nullValue);
internal static extern JavaScriptErrorCode JsGetUndefinedValue(out JavaScriptValue undefinedValue);
public static extern JavaScriptErrorCode JsGetTrueValue(out JavaScriptValue trueValue);
internal static extern JavaScriptErrorCode JsGetTrueValue(out JavaScriptValue trueValue);
public static extern JavaScriptErrorCode JsGetFalseValue(out JavaScriptValue falseValue);
internal static extern JavaScriptErrorCode JsBoolToBoolean(bool value, out JavaScriptValue booleanValue);
public static extern JavaScriptErrorCode JsBoolToBoolean(bool value, out JavaScriptValue booleanValue);