[Webkit-unassigned] [Bug 52988] REGRESSION (r75555): Safari RSS sidebar jiggles when scrolling

Mon Jan 24 22:07:32 PST 2011

https://bugs.webkit.org/show_bug.cgi?id=52988

--- Comment #18 from Darin Fisher (:fishd, Google) <fishd at chromium.org>  2011-01-24 22:07:32 PST ---
(In reply to comment #13)
> I think a superior implementation would both be asynchronous and ensure the event fires before a stale repaint.

Yeah, this is essentially what I meant by comment #6.

However, James pointed out that if we do that then we are necessarily putting script execution on the critical path for scrolling.  This means that it limits our ability to optimize scrolling (e.g., imagine a background thread performing the scroll animation).  Do we really want to give up this kind of optimization?  Maybe so.

Maybe the better answer is to address this use case with CSS as James mentions in comment #7.  If we had that, then we could make the scroll event less useful in exchange for better opportunities to optimize scrolling.

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