Hi all, The new behavior is enabled for tests after https://trac.webkit.org/changeset/235806/webkit Essentially, this means that if you want set/get the scroll position of the test pages, you should now just use document.scrollingElement instead of document.body.
I'll wait a few days before proposing to set it to DEFAULT_EXPERIMENTAL_FEATURES_ENABLED and allow wider testing : https://bugs.webkit.org/show_bug.cgi?id=189472 Frédéric On 30/01/2018 17:21, Frédéric Wang wrote: > Hi everybody, > > I'd like to announce that I started to implement the behavior for > scrollLeft, scrollTop, scrollWidth, scrollHeight, scrollTo, scrollBy and > scrollingElement [1] as specified by the CSSOM View specification [2]. > > To summarize, the main difference is which element to use in order to > set or get the scroll properties of the viewport in standard > (non-Quirks) mode: > > * The CSSOM View spec says it should be document.documentElement and > most browsers implement it that way. > * Chromium used to use document.body but this has recently been changed > to follow the CSSOM View spec [3]. > * WebKit still uses document.body and I'm proposing to change this behavior. > > Note that this is likely to break existing content. The change was > attempted in WebKit in the past but broke some non-regression tests [4]. > Chromium people also had some issues when trying to ship the change but > things went well at the end [5]. > > For now I'm developing it under a CSSOMViewScrollingAPI developer flag. > I was able to run the tests with that flag enabled, modulo a few test > adjustments. > > [1] https://bugs.webkit.org/show_bug.cgi?id=5991 > [2] https://drafts.csswg.org/cssom-view > [3] > https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/X64Sg16RhT4 > [4] https://bugs.webkit.org/show_bug.cgi?id=106133, > https://bugs.webkit.org/show_bug.cgi?id=121876 > [5] > https://groups.google.com/a/chromium.org/forum/#!msg/blink-dev/2iOz5-fgD8Y/GO7qLkg4BwAJ > ; https://bugs.webkit.org/show_bug.cgi?id=5991#c20 > -- Frédéric Wang - frederic-wang.fr _______________________________________________ webkit-dev mailing list webkit-dev@lists.webkit.org https://lists.webkit.org/mailman/listinfo/webkit-dev
