[webkit-dev] [CSSOM View] Smooth scroll behavior via CSS property / DOM scroll* API

[Frédéric Wang]

Hi all,

The main implementation is now submitted for review at:
https://bugs.webkit.org/show_bug.cgi?id=188043

It has some issue with smooth scrolling via scrollIntoView on nested
scrollers but I don't plan to work on this until the main part is
merged. See https://bugs.webkit.org/show_bug.cgi?id=189907

On 20/09/2018 22:26, Frédéric Wang wrote:
> Hi all,
>
> This email is to announce that I have started to work on (programmatic)
> smooth scrolling in WebKit from the CSSOM View specification [1]. To use
> this effect, web developers can pass a behavior parameter (auto, smooth,
> or instant) to Element.scroll, Element.scrollTo, Element.scrollBy,
> Element.scrollIntoView, Window.scroll, Window.scrollTo or
> Window.scrollBy [2]. When behavior is auto, the instant/smooth
> characteristic is actually taken from the value of a new CSS
> scroll-behavior property [3]. This new feature will be protected by a
> compile flag (enabled by default) and a runtime flag (an experimental
> feature). If you are interested, you can follow advancement on Bugzilla [4].
>
> Incidentally (and since that was convenient to do it before) I also
> added some basic support for new ScrollIntoView options [5] [6] that
> allow to specify how you want the revealed element to be aligned with
> respect to its scrollable ancestors.
>
> Cheers,
>
>
> Frédéric
>
> [1] https://drafts.csswg.org/cssom-view
> [2] https://drafts.csswg.org/cssom-view/#dictdef-scrolloptions
> [3] https://drafts.csswg.org/cssom-view/#propdef-scroll-behavior
> [4] https://bugs.webkit.org/show_bug.cgi?id=188043
> [5] https://bugs.webkit.org/show_bug.cgi?id=189258
> [6] https://drafts.csswg.org/cssom-view/#dictdef-scrollintoviewoptions
>
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-- 
Frédéric Wang - frederic-wang.fr