w3c/csswg-drafts

[cssom-view] elementFromPoint etc need to be defined in terms of layout and visual viewports

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#1,378 创建于 2017年5月15日

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描述

https://www.w3.org/TR/cssom-view-1/#dom-document-elementfrompoint

elementFromPoint(), elementsFromPoint() and caretPositionFromPoint() need to define whether the arguments are relative to the layout or visual viewports. Other "client" coordinates are being defined as being in terms of the layout viewport (e.g. getBoundingClientRects(), getClientRects(), event.clientX/y [citation needed]).

The spec also needs to define whether the clipping to the the viewport uses the layout or visual viewports for clipping.

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