On Wed, Oct 29, 2014 at 9:40 AM, Jonas Sicking <jo...@sicking.cc> wrote:
> That said, it's scary that these APIs are described in terms of > synchronous operations on the scroll position. I.e. it seems to > pretend that off-main-thread scrolling doesn't exist and then hope > that implementations are able to still create a good experience on > implementations that do off-main-thread scrolling. > Synchronous-looking scroll operations have been part of the platform for a long time via the scrollTop and scrollLeft properties. It does no harm to continue and even extend support for that. There is of course no spec requirement that we actually re-render synchronously; all we need to do is update the script's view of page geometry synchronously. The skew between the page's view of geometry and what we're actually rendering creates complexity in the browser but it's something we've been dealing with for a long time. The new smooth-scrolling functionality is, of course, async. I can't say I understand why it was called "auto" rather than simply > making "instant" the default value of the property. That said, if all > we're doing is bikeshedding the name I'm happy to leave it up to the > WG. > It doesn't seem like a good idea for authors to specify "instant" and still get smooth scrolling. And we have no good use-cases for actually being able to force "instant" in defiance of platform/browser conventions. Rob -- oIo otoeololo oyooouo otohoaoto oaonoyooonoeo owohooo oioso oaonogoroyo owoiotoho oao oboroootohoeoro oooro osoiosotoeoro owoiololo oboeo osouobojoeocoto otooo ojouodogomoeonoto.o oAogoaoiono,o oaonoyooonoeo owohooo osoaoyoso otooo oao oboroootohoeoro oooro osoiosotoeoro,o o‘oRoaocoao,o’o oioso oaonosowoeoroaoboloeo otooo otohoeo ocooouoroto.o oAonodo oaonoyooonoeo owohooo osoaoyoso,o o‘oYooouo ofooooolo!o’o owoiololo oboeo oiono odoaonogoeoro ooofo otohoeo ofoioroeo ooofo ohoeololo. _______________________________________________ dev-platform mailing list dev-platform@lists.mozilla.org https://lists.mozilla.org/listinfo/dev-platform
