[Webkit-unassigned] [Bug 176914] Async iframes in the scrolling tree should be in the z-index order

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue Dec 19 09:02:42 PST 2017


--- Comment #17 from Frédéric Wang (:fredw) <fred.wang at free.fr> ---
(In reply to Simon Fraser (smfr) from comment #16)
> I'm thinking of storing scrolling data in the GraphicsLayer tree. That would
> automatically give us the correct z-index.

@Simon: What are your plan & status on this? The latest patch on bug 173833 for iOS frame scrolling now works relatively well, but there are still issues to handle mouse events when clicking an element (I'm testing with the simulator, but I guess the same is true for touch events on a device). It looks like the Web process does not take into account the scroll position when doing hit testing. Maybe something like bug 172917 is required for iOS, as you suggested in the past? Anyway, I plan to do other adjustments and to update & write tests for bug 173833 when I'm back in January. That way I can submit something to review for bug 173833, even if hit testing does not work perfectly for now. WDYT?

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