public override void Intercept(Castle.Core.Interceptor.IInvocation invocation)
{
if(invocation.Method.DeclaringType == typeof(INotifyPropertyChanged))
{
var propertyChangedEventHandler = (PropertyChangedEventHandler)invocation.GetArgumentValue(0);
if(invocation.Method.Name.StartsWith("add_"))
{
subscribers += propertyChangedEventHandler;
}
else
{
subscribers -= propertyChangedEventHandler;
}
return;
}
base.Intercept(invocation);
var result = invocation.ReturnValue;
// 속성값이 변경되었을 때 PropertyChanged event를 실행시킨다.
if(invocation.Method.Name.StartsWith("set_"))
{
if(IsDebugEnabled)
log.Debug("Raise PropertyChanged event. PropertyName=" + invocation.Method.Name);
subscribers(this, new PropertyChangedEventArgs(invocation.Method.Name.Substring(4)));
}
invocation.ReturnValue = result;
}