Re: [pointerevents] Clarify what touch-action allows with rotated scrollable elements

Note that fully supporting this behavior (eg. arbitrary angle 
rotation) will be hard in Chrome's architecture (I don't think we 
handle non-axis-aligned scrolling well at all).  In particular, we 
filter our gestures for touch-action in the browser process before we 
know anything about the content under the finger.  But I think we 
could probably do a quick hack for the 90/180/270 rotation cases (take
 rotation into account when computing the effective touch action) and 
leave the rest as a pretty low priority bug blocked on our compositor 
hit-test rework.

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Received on Friday, 29 July 2016 05:43:22 UTC