[Webkit-unassigned] [Bug 216031] EventRegion paint should respect layer's foreground and background painting phases

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=216031

Simon Fraser (smfr) <simon.fraser at apple.com> changed:

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--- Comment #3 from Simon Fraser (smfr) <simon.fraser at apple.com> ---
Comment on attachment 407668
  --> https://bugs.webkit.org/attachment.cgi?id=407668
patch

View in context: https://bugs.webkit.org/attachment.cgi?id=407668&action=review

> Source/WebCore/rendering/RenderBlock.cpp:1140
> +        if (paintInfo.eventRegionContext)
> +            paintInfoForChild.paintBehavior.add(PaintBehavior::EventRegionIncludeBackground);

This is pretty weird. I wish event region painting followed normal painting more closely.

> Source/WebCore/rendering/RenderLayer.cpp:4654
> +            paintBehavior = paintBehavior & PaintBehavior::CompositedOverflowScrollContent;

I know you moved this and I added it in r262337 but I don't understand it.

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