static void OnNextBeginDown(InputTarget target, InputArgs args)
{
if (target.IsBeginDownAvailable())
{
target.BeginDown(args);
}
}
public InputArgsObserver(InputTarget target, Action <InputTarget, InputArgs> onNext)
{
_target = target;
_onNext = onNext;
}
private static IDisposable ConnectBeginDown(InputSource source, InputTarget target)
{
var observer = new InputArgsObserver(target, OnNextBeginDown);
return(source.BeginDown.Subscribe(observer));
