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

[bugzilla-daemon at webkit.org]

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





--- Comment #16 from Mihai Parparita <mihaip at chromium.org>  2011-01-24 16:58:03 PST ---
(In reply to comment #14)
> I think we should instead consider something else that will satisfy the requirement, which is to make “scrolling” itself decoupled from setting the scroll position by script.

While this would solve this particular problem, it doesn't help in other aspects:
- We would still have to execute scripts before able to paint the results of scrolls, which means that we're more likely to have jerky scrolling.
- We would have divergent behavior from Firefox and IE (the difference in behavior would be visible to pages, WebKit would repaint later when setting scrollTop than when setting other properties).

Perhaps the best compromise for now is to have a mode switch, so that web content gets async events, but other WebKit clients get the legacy behavior (I'm not sure how easy it would be to get Safari RSS on the legacy codepath).

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