public JSValue(IServiceNode parentNode, JavaScriptValue value) : base(parentNode, "JSValue")
{
ReferenceValue = value;
ServiceNode.PushService <ICallContextService>(new CallContextService(value));
//inject service
Binding = new JSValueBinding(ServiceNode, value);//binding will create a branch of current service node to persistent hold all delegates created by binding function
}
public static void RegisterProxyConverter <T>(this IJSValueConverterService service, Action <JSValueBinding, T, IServiceNode> createBinding) where T : class
{
toJSValueDelegate <T> tojs = (IServiceNode node, T value) =>
{
return(node.GetService <IContextSwitchService>().With(() =>
{
var result = JavaScriptValue.CreateExternalObject(IntPtr.Zero, null);
JSValueBinding binding = new JSValueBinding(node, result);
var handle = node.GetService <IGCSyncService>().SyncWithJsValue(value, result);
result.ExternalData = GCHandle.ToIntPtr(handle);//save the object reference to javascript values's external data
createBinding?.Invoke(binding, value, node);
return result;
}));
};
fromJSValueDelegate <T> fromjs = (IServiceNode node, JavaScriptValue value) =>
{
if (value.HasExternalData)
{
GCHandle handle = GCHandle.FromIntPtr(value.ExternalData);
return(handle.Target as T);
}
else
{
throw new ArgumentOutOfRangeException("Convert from jsValue to proxy object failed, jsValue does not have a linked CLR object");
}
};
service.RegisterConverter <T>(tojs, fromjs);
}
public JSValue(IServiceNode parentNode, JavaScriptValue value) : base(parentNode, "JSValue")
{
ReferenceValue = value;
ServiceNode.PushService <ICallContextService>(new CallContextService(value));
//inject service
Binding = new JSValueBinding(ServiceNode, value);//binding will create a branch of current service node to persistent hold all delegates created by binding function
//add my own one time delegate handler for method/function call
ServiceNode.PushService <INativeFunctionHolderService>(new NativeFunctionHolderService(true));
}
public JavaScriptValue Map <T>(T obj, Action <JSValueBinding, T, IServiceNode> createBinding) where T : class
{
JavaScriptValue output;
var list = getMapList <T>(true);
if (list.objList.ContainsKey(obj))
{
return(list.objList[obj]);//object already mapped, return cached object
}
output = runtimeService.InternalContextSwitchService.With <JavaScriptValue>(() =>
{
var result = JavaScriptValue.CreateExternalObject(IntPtr.Zero, null);//do not handle the external GC event as the value will be hold until user dispose current service
result.AddRef();
return(result);
});
JSValueBinding binding = new JSValueBinding(serviceNode, output);
createBinding?.Invoke(binding, obj, serviceNode);
list.Add(obj, output, binding);
return(output);
}
public void Add(T obj, JavaScriptValue value, JSValueBinding binding)
{
jsList.Add(value, new Tuple <T, JSValueBinding>(obj, binding));
objList.Add(obj, value);
}
