On Sat, Dec 7, 2013 at 12:17 AM, Robert O'Callahan <robert@ocallahan.org>wrote: > On Sat, Dec 7, 2013 at 9:40 AM, Ali Juma <ajuma@chromium.org> wrote: > >> Even if we could automatically infer (from "will-animate: height" on the >> blue boxes) that the green boxes would be moving, we wouldn't be able to >> differentiate between the first box (whose content is fixed, and hence >> worth caching in a layer) and the second box (whose contents are not fixed, >> and hence wasteful to cache in a layer) without a hint from the author. >> > > It seems to me that the best solution for this example is to specify > will-animate:volatile (actually I dislike that name, but whatever) on the > second green box to indicate that its contents change. > Agreed, that sounds like the right approach for this. In the future we might want to consider also having a "will-animate: non-volatile" so that we can distinguish between elements whose content never changes and those whose content sometimes changes (but doesn't change enough to warrant "volatile"). I think the current state of the proposal (where the recognized values for will-animate are css properties, "scroll-position", and "volatile") looks good.
Received on Monday, 9 December 2013 21:14:45 UTC