[Webkit-unassigned] [Bug 122212] Optimizations to remove 300ms touch > mouse events delay

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Tue May 20 14:00:11 PDT 2014


--- Comment #12 from Benjamin Poulain <benjamin at webkit.org>  2014-05-20 14:00:34 PST ---
(In reply to comment #6)
> 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.

Following up from https://bugs.webkit.org/show_bug.cgi?id=133112:

I think an example will make things clearer:
-Let's say you have a link on which you want to remove the double tap delay for some reason. You add "touch-action:manipulation on the link".
-Now the user "tap" on the link. In general the finger position will not hit the line box of the link, instead it is a position slightly bellow the link. Since touch-action is defined for touch, it is ignored, and you get the double tap delay as usual.

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