Please expose viewport's size in a MinaBoxState

[snakemr]

Desktop Platform of Compose Multiplatform has buil-in VerticalScrollbar and HorizontalScrollbar with their ScrollbarAdapter. I adopted it for minabox: https://gist.github.com/snakemr/fe054fc4ac1b27c3f7738638ce5ef859 usage:

    val state = rememberLazyTableState()
    BoxWithConstraints {
        LazyTable(state = state) {
            //...
        }
        VerticalScrollbar(
            rememberScrollbarAdapter(state, maxHeight, Orientation.Vertical),
            Modifier.align(Alignment.TopEnd).fillMaxHeight()
        )
        HorizontalScrollbar(
            rememberScrollbarAdapter(state, maxWidth, Orientation.Horizontal),
            Modifier.align(Alignment.BottomStart).fillMaxWidth()
        )
    }

Please, expose viewport's size in a MinaBoxState, so one do not have to set maxWidth/maxHeight manually.

[oleksandrbalan]

I have added viewport's size to the Translate class in this PR #21.

It is available in 1.7.1 release.

Also I have checked your snippet and this looked strange to me 🤔

delay(10)
cancel()

I guess this causes de-sync when scrollbar is dragged quickly, but it is needed because without it everything get "stuck" when scrollbar is dragged during translation animation from fling. I have played around with it a little bit and looks like with NonCancelable context it works correctly and does not get "stuck" when dragged during fling animation.

coroutineScope {
    launch(NonCancellable) {
        if (orientation == Orientation.Vertical)
            boxState.snapTo(translate.x, scrollOffset.toFloat())
        else
            boxState.snapTo(scrollOffset.toFloat(), translate.y)
    }
}

Just my two cents 😸