public ClrProperty(global::Jint.Engine engine, DomConverter converter, PropertyInfo property)
{
Get =
property.GetMethod != null && property.GetMethod.IsPublic ? new ClrFunctionInstance(engine, (jsThis, values) =>
{
var clrThis = converter.ConvertFromJs(jsThis);
return(JsValue.FromObject(engine, property.GetValue(clrThis)));
}) : null;
var setter = new Lazy <Action <object, JsValue> >(() => CreateSetter(converter, property));
Set =
property.SetMethod != null && property.SetMethod.IsPublic ? new ClrFunctionInstance(engine, (jsThis, values) =>
{
try
{
var clrThis = converter.ConvertFromJs(jsThis);
if (values.Length == 0)
{
return(JsValue.Undefined);
}
setter.Value(clrThis, values[0]);
return(JsValue.Undefined);
}
catch (Exception e)
{
throw new JavaScriptException(e.Message);
}
}) : new ClrFunctionInstance(engine, (value, values) => JsValue.Undefined);
}
public ClrEvent(global::Jint.Engine engine, DomConverter converter, EventInfo eventInfo)
{
Get = new ClrFunctionInstance(engine, (clrThis, args) =>
{
var attachedEvents = converter.GetAttachedEventsFor(clrThis);
return(attachedEvents.TryGetValue(eventInfo, out var func) ? func : JsValue.Null);
});
Set = new ClrFunctionInstance(engine, (jsThis, args) =>
{
var objectInstance = jsThis.AsObject();
var clrThis = converter.ConvertFromJs(jsThis);
var attachedEvents = converter.GetAttachedEventsFor(objectInstance);
if (attachedEvents.TryGetValue(eventInfo, out var existHandler))
{
var clrHandler = converter.ConvertToClr(existHandler, eventInfo.EventHandlerType, jsThis);
eventInfo.RemoveMethod.Invoke(clrThis, new object[] { clrHandler });
attachedEvents.Remove(eventInfo);
}
if (args.Length != 0 && !args[0].IsNull() && !args[0].IsUndefined() && args[0].AsObject() is FunctionInstance functionInstance)
{
var clrHandler = converter.ConvertToClr(functionInstance, eventInfo.EventHandlerType, jsThis);
eventInfo.AddMethod.Invoke(clrThis, new object[] { clrHandler });
attachedEvents[eventInfo] = functionInstance;
}
return(null);
});
}
public override JsValue Call(JsValue thisObject, JsValue[] argumentValues)
{
int methodIndex = _methods.IndexOf(x => x.GetParameters().IsAppropriate(argumentValues, true));
if (methodIndex < 0)
{
methodIndex = _methods.IndexOf(x => x.GetParameters().IsAppropriate(argumentValues, false));
}
if (methodIndex < 0)
{
return(null); //or throw exception;
}
var invoker = _invokers[methodIndex];
if (invoker == null)
{
_invokers[methodIndex] = invoker = CreateInvoker(_methods[methodIndex]);
}
var clrObject = _converter.ConvertFromJs(thisObject == JsValue.Undefined ? _owner : thisObject);
if (clrObject is ClrPrototype prototype)
{
if (_methods.Length == 1 && _methods[0].Name == "ToString")
{
return($"[object {prototype.Class}]");
}
throw new JavaScriptException("Illegal method invocation.");
}
try
{
return(JsValue.FromObject(Engine, invoker(clrObject, argumentValues)));
}
catch (Exception e)
{
throw new JavaScriptException(e.ToString());
}
}