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 = jsThis.ToObject();
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 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 ClrPrototype(global::Jint.Engine engine, DomConverter converter, Type type, ObjectInstance prototype) :
base(engine)
{
Prototype = prototype;
Class = type.GetJsName();
Extensible = true;
converter.DefineProperties(this, type);
}
public ClrPrototype(global::Jint.Engine engine, DomConverter converter, Type type, ObjectInstance prototype) :
base(engine)
{
Prototype = prototype;
_name = (type.GetCustomAttribute <JsNameAttribute>()?.Name ?? type.Name) + "Prototype";
Extensible = true;
converter.DefineProperties(this, type);
}
public ClrMethodInfoFunc(DomConverter converter, global::Jint.Engine engine, MethodInfo[] methods, JsValue owner)
: base(engine, null, null, false)
{
_converter = converter;
_owner = owner;
_methods = methods.OrderByDescending(x => x.GetParameters().Length).ToArray();
_invokers = new Func <object, JsValue[], object> [methods.Length];
Prototype = engine.Function.PrototypeObject;
var name = methods.First().GetName();
FastAddProperty("name", new JsValue(name), false, false, false);
}
public ReadonlyListAdapter(global::Jint.Engine engine, IReadOnlyList <T> list, ClrPrototype prototype)
: base(engine)
{
_engine = engine;
_list = list;
Prototype = prototype;
_indexPropertyStr =
Target.GetType().GetRecursive(x => x.BaseType).SelectMany(x =>
x.GetProperties().Where(p => p.GetIndexParameters().Length != 0 &&
p.GetCustomAttribute <JsHiddenAttribute>() == null &&
p.GetIndexParameters()[0].ParameterType == typeof(string)))
.FirstOrDefault();
}
public static PropertyDescriptor Create(global::Jint.Engine engine,
DomConverter converter,
string propertyName,
MethodInfo[] methods,
JsValue owner)
{
var func = new ClrMethodInfoFunc(converter, engine, methods, owner);
//todo: check if this necessary
func.FastAddProperty("toString",
new JsValue(new ClrFunctionInstance(engine,
(value, values) => new JsValue("function " + propertyName + "() { [native code] }"))),
false, false, false);
return(new PropertyDescriptor(func, false, true, false));
}
