private void OnVisibilityChanged(bool visible)
{
this.ToTop();
Node.SetProcessUnhandledInput(visible);
UpLabel.Iter(l => l.Active = visible && this.CanGoUp());
CloseLabel.Iter(l => l.Active = visible);
if (!visible)
{
ItemsContainer.GetChildren()
.OfType <Node>()
.Filter(c => !EmptyLabel.Contains(c))
.Iter(ItemsContainer.FreeChild);
}
}
protected override void PostConstruct()
{
base.PostConstruct();
var disposed = Disposed.Where(identity);
OnItemsChange
.Do(items => Items = items)
.TakeUntil(disposed)
.Subscribe(HandleItemsChange, this);
OnNavigate
.Do(_ => UpLabel.Iter(l => l.Active = this.CanGoUp()))
.Select(i => i.Bind(v => v.GetPath()).Reverse())
.Select(p => string.Join(" > ", p.Map(v => v.DisplayName)))
.TakeUntil(disposed)
.Subscribe(v => Breadcrumb.Iter(b => b.Text = v), this);
UpLabel
.Map(l => l.OnAction)
.ToObservable()
.Switch()
.TakeUntil(disposed)
.Subscribe(_ => this.GoUp());
CloseLabel
.Map(l => l.OnAction)
.ToObservable()
.Switch()
.TakeUntil(disposed)
.Subscribe(_ => this.Hide());
Node.OnVisibilityChange()
.StartWith(Visible)
.TakeUntil(disposed)
.Subscribe(OnVisibilityChanged, this);
if (BackAction.IsSome)
{
Node.OnUnhandledInput()
.Where(e => BackAction.Exists(v => e.IsActionPressed(v)) && this.CanGoUp())
.TakeUntil(disposed)
.Do(_ => Node.GetTree().SetInputAsHandled())
.Subscribe(_ => this.GoUp(), this);
}
}
