[Webkit-unassigned] [Bug 190655] Caret z-index is not consistent with its input element -- appears over other elements.

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu May 23 12:29:06 PDT 2019


https://bugs.webkit.org/show_bug.cgi?id=190655

--- Comment #5 from Wenson Hsieh <wenson_hsieh at apple.com> ---
(In reply to Chet Corcos from comment #4)
> Can we re-design?

I think "by design" (from above) was referring more to the implementation, rather than the intended user experience.

Currently, our caret is rendered using native views on iOS (UIViews), rather than using web content. While this enables a whole family of platform-defined text selection and interaction gestures, it also makes it difficult to get text selection views to play well with occlusion, z-ordering, etc.

In this particular example, I think we can mitigate this by allowing caret and selection views to be hosted in the view hierarchy of UIScrollViews for fast-scrollable elements (e.g. overflow scrolling containers and iframes).

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