[Webkit-unassigned] [Bug 84936] [chromium] Compute highlight for touch targets

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Fri Jun 8 13:37:18 PDT 2012


https://bugs.webkit.org/show_bug.cgi?id=84936





--- Comment #46 from Tien-Ren Chen <trchen at chromium.org>  2012-06-08 13:37:16 PST ---
(In reply to comment #44)
> > > is not it what Source/WebCore/page/GestureTapHighlighter.cpp is responsible for, among others? (see also https://bugs.webkit.org/show_bug.cgi?id=84989)
> > 
> > GestureTapHighlighter has some major flaws that I don't think are easily fixable.
> > 1. The support for transformation is terribly wrong. It gets the absoluteRects then apply layer transformation again?
> > 2. It doesn't separate highlights for different graphicsLayer. Which is essential to support threaded-scrolling/CSS animation.
> 
> Zalan would be interested in improving this, I think.

Why not just use our version? ;)

I tried the GestureTapHighlighter based version with various test cases (see "some additional test cases" in the attachments), most of them result in a unusable highlight.

Besides transformation, it also generates wrong box for inline elements for some cases.

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