[Webkit-unassigned] [Bug 110895] Focus ring for a child composited layer is incorrectly offset by parent layer's position
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Wed Feb 27 10:21:13 PST 2013
https://bugs.webkit.org/show_bug.cgi?id=110895
--- Comment #7 from Xianzhu Wang <wangxianzhu at chromium.org> 2013-02-27 10:23:37 PST ---
CSS3 seems to give browsers more flexibility about drawing outlines:
... User agents should use an algorithm for determining the outline that encloses a region appropriate for conveying the concept of focus to the user.
I don't think drawing a separate outline for the fully overflowed sub-element conveying more information about focus to the user. Instead, it seems to confuse the user.
I believe in many cases, the web page designer doesn't actually want an out-of-flow element to be a visual part of the ancestor elements. Drawing parent's including out-of-flow sub-elements may not be the intention of the web page designer either.
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P.S. to #6:
For real focus ring (when an element is really focused):
- Firefox: position same as outline (enclosing sub-elements), using dotted black-and-white outline style.
- IE9: position same as outline (not enclosing sub-elements), using dotted black-and-white outline style. The sub-layer covers part of the focus ring.
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