internal static ControlProperty <T> Value <T, C>(C control, Func <C, T> getter, Action <C, T> setter) where C : UIControl
{
var source = Observable.Create <T>(observer =>
{
if (control == null)
{
observer.OnCompleted();
return(Disposable.Empty);
}
observer.OnNext(getter(control));
var controlTarget = new ControlTarget(control, (UIControlEvent.AllEditingEvents | UIControlEvent.ValueChanged),
c =>
{
if (control == null)
{
return;
}
observer.OnNext(getter(control));
});
return(Disposable.Create(() => controlTarget.Dispose()));
});
var bindingObserver = new UIBindingObserver <C, T>(control, setter);
return(new ControlProperty <T>(source, bindingObserver));
}
/// <summary>
/// Returns An <c>IOBservable<T></c> instance for T when the <c>UIControlEvent is generated</c>
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="rx"></param>
/// <param name="controlEvent"></param>
/// <returns>An <c>IOBservable</c> instance for <c>T</c> when the <c>UIControlEvent</c> is generated</returns>
public static ControlEvent <T> ControlEvent <T>(this Reactive <T> rx, UIControlEvent controlEvent) where T : UIControl
{
var source = Observable.Create <T>(observer =>
{
if (rx.Parent == null)
{
observer.OnCompleted();
return(Disposable.Empty);
}
var controltarget = new ControlTarget(rx.Parent, controlEvent, uiControl => observer.OnNext(rx.Parent));
return(Disposable.Create(() => controltarget.Dispose()));
}); //.TakeUntil(self.deallocated?);
return(new ControlEvent <T>(source));
}