private static JavaScriptValue ToJSMethod(IServiceNode node, Action <IEnumerable <JavaScriptValue> > a) { IJSValueService jsValueService = node.GetService <IJSValueService>(); return(jsValueService.CreateFunction( (JavaScriptNativeFunction)((callee, isConstructCall, arguments, argumentCount, callbackData) => { a(arguments.Skip(1)); return jsValueService.JSValue_Undefined; }), IntPtr.Zero)); }
public static T ReadProperty <T>(this IJSValueService service, JavaScriptValue target, JavaScriptPropertyId id, T defaultValue) { if (service.HasProperty(target, id)) { return(service.ReadProperty <T>(target, id)); } else { return(defaultValue); } }
public static JavaScriptValue CreateTypedArray(this IJSValueService valueService, JSTypedArray source, JavaScriptValue?arrayBufferSource) { IContextSwitchService switchService = valueService.CurrentNode.GetService <IRuntimeService>().InternalContextSwitchService; if (source.JSSource.IsValid) { return(source.JSSource); } switch (source.BufferSource) { case SharedBufferSourceEnum.CreateByDotnet: return(switchService.With <JavaScriptValue>( () => { if (arrayBufferSource == null) { throw new ArgumentNullException(nameof(arrayBufferSource)); } var result = JavaScriptValue.CreateTypedArray(source.ArrayType, arrayBufferSource.Value, source.Position, source.UnitCount); source.SetJSSource(result, switchService); return result; } )); case SharedBufferSourceEnum.CreateByJavascript: throw new InvalidOperationException("invalid source typed array"); //create by javascript should already have JavaScriptValue assigned case SharedBufferSourceEnum.CreateInJavascript: return(switchService.With <JavaScriptValue>( () => { var result = JavaScriptValue.CreateTypedArray(source.ArrayType, JavaScriptValue.Invalid, source.Position, source.UnitCount); source.SetJSSource(result, switchService); //hold the objec //get the internal storage JavaScriptValue.GetTypedArrayStorage(result, out IntPtr data, out uint bufferLength, out JavaScriptTypedArrayType type, out int elementSize); source.InitWindow(data, false); source.InitBeforeConvert(source.Buffer); return result; } )); case SharedBufferSourceEnum.CreateByExternal: throw new ArgumentException("TypedArray does not support create from external"); default: throw new ArgumentOutOfRangeException("Invalid BufferSource property in JSTypedArray object"); } }
/// <summary> /// Create DataView in javascript /// this method requires a sourceArrayBuffer which make sure the arraybuffer is initialized before transfer to javascript /// </summary> /// <param name="sourceArrayBuffer">ArrayBuffer object</param> /// <param name="source"></param> /// <returns></returns> public static JavaScriptValue CreateDataView(this IJSValueService valueService, JavaScriptValue sourceArrayBuffer, JSDataView source) { IContextSwitchService switchService = valueService.CurrentNode.GetService <IRuntimeService>().InternalContextSwitchService; if (source.JSSource.IsValid) { return(source.JSSource); } switch (source.BufferSource) { case SharedBufferSourceEnum.CreateByDotnet: return(switchService.With <JavaScriptValue>( () => { var result = JavaScriptValue.CreateDataView(sourceArrayBuffer, source.Position, (uint)source.Size); source.SetJSSource(result, switchService); source.InitBeforeConvert(source.Buffer); return result; } )); case SharedBufferSourceEnum.CreateByJavascript: throw new InvalidOperationException("invalid source typed array"); //create by javascript should already have JavaScriptValue assigned case SharedBufferSourceEnum.CreateInJavascript: return(switchService.With <JavaScriptValue>( () => { var result = JavaScriptValue.CreateDataView(sourceArrayBuffer, source.Position, (uint)source.Size); source.SetJSSource(result, switchService); JavaScriptValue.GetDataViewStorage(result, out IntPtr data, out uint bufferLength); source.InitWindow(data, false); source.InitBeforeConvert(source.Buffer); return result; } )); case SharedBufferSourceEnum.CreateByExternal: throw new ArgumentException("DataView does not support create from external"); default: throw new ArgumentOutOfRangeException("Invalid BufferSource property in JSDataView object"); } }
public static JavaScriptValue CreateArrayBuffer(this IJSValueService valueService, JSArrayBuffer source) { IContextSwitchService switchService = valueService.CurrentNode.GetService <IRuntimeService>().InternalContextSwitchService; return(switchService.With <JavaScriptValue>(() => { if (source.JSSource.IsValid) { return source.JSSource; } switch (source.BufferSource) { case SharedBufferSourceEnum.CreateByJavascript: throw new InvalidOperationException("invalid source array buffer"); //create by javascript should already have JavaScriptValue assigned case SharedBufferSourceEnum.CreateInJavascript: { JavaScriptValue result = JavaScriptValue.CreateArrayBuffer((uint)source.Size); source.SetJSSource(result, switchService); //hold the varient var data = JavaScriptValue.GetArrayBufferStorage(result, out uint bufferSize); source.InitWindow(data, false); source.InitBeforeConvert(source.Buffer); return result; } case SharedBufferSourceEnum.CreateByDotnet: case SharedBufferSourceEnum.CreateByExternal: { var result = JavaScriptValue.CreateExternalArrayBuffer(source.Buffer.Handle, (uint)source.Buffer.ByteLength, null, IntPtr.Zero); //do not handle GC callback, user should control the varient life cycle source.SetJSSource(result, switchService); //hold the varient return result; } default: throw new ArgumentOutOfRangeException("Invalid BufferSource property in JSArryBuffer object"); } } )); }