[Webkit-unassigned] [Bug 161612] Programmatic scrolling on a scrollable body can leave parts of the page unviewable

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Jan 30 05:56:17 PST 2018


https://bugs.webkit.org/show_bug.cgi?id=161612

Frédéric Wang (:fredw) <fred.wang at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |5991
         Depends on|                            |182230

--- Comment #1 from Frédéric Wang (:fredw) <fred.wang at free.fr> ---
(In reply to Simon Fraser (smfr) from comment #0)
> Created attachment 287981 [details]
> Testcase
> 
> We're confused about programmatic scrolling on the body, when the body is
> independently scrollable (i.e. has overflow:scroll when the <html> has
> overflow:hidden).
> 
> In this case programmatic scrolling on the body can scroll the document, but
> the user can't scroll it back.

The testcase does not work because the call to description() is not commented out.

It will be worth going back to this when bug 182230 is fixed, as the current patch seems to give better result.


Referenced Bugs:

https://bugs.webkit.org/show_bug.cgi?id=5991
[Bug 5991] [CSSOM View] Implement standard behavior for scroll(Left/Top/Width/Height/To/By/ingElement)
https://bugs.webkit.org/show_bug.cgi?id=182230
[Bug 182230] [CSSOM View] Handle the scrollingElement in Element::scroll(Left/Top/Width/Height/To)
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