[Webkit-unassigned] [Bug 133112] Touch-action css property support
bugzilla-daemon at webkit.org
bugzilla-daemon at webkit.org
Tue May 20 13:42:50 PDT 2014
https://bugs.webkit.org/show_bug.cgi?id=133112
--- Comment #6 from Patrick H. Lauke <redux at splintered.co.uk> 2014-05-20 13:43:13 PST ---
"Patrick: touch-action:manipulation is basically just as bad as preventDefault() for the click delay. Touch events have raw position, mouse/click events are adjusted based on the device DPI, scale factor, finger surface, etc. For tap/click, the right thing to expose is the adjusted value, not the raw touch. The problem is touch-action:manipulation defines touch behavior, not synthetic events."
Unless I'm missing something, all that touch-action:manipulation in the context of touch events would do (and I believe that's what Chrome and Mozilla are implementing/have implemented so far) is a rather fancy way of saying "don't wait 300ms for the second tap of a double-tap action". Nothing about affecting raw vs adjusted position values as far as I know.
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