src Str? effect := null

Transition effect to apply when selIndex is changed. If null, no effect is applied.

Valid values are:

• slideLeft: animate cards sliding in from right-to-left
• slideRight: animate cards sliding in from left-to-right

src Duration effectDur := 350ms

Duratin for effect animation to last.

src new make()

src protected virtual override Void onAdd(Elem c)

src protected virtual override Void onRemove(Elem c)

src virtual Int? selIndex

Selected card index, or null if no children.

src Elem? selItem()

Selected card instance, or null if no children.