Re: [pointerevents] Touch-action doesn't permit direction-specific scroll AND pinch-zoom

I'm a little unclear on what it means to allow pinch-zoom without 
allowing pan-x and pan-y. Most if not all UAs that support 
pinch-zooming also allow panning around while both fingers are down - 
would this be disallowed?

Pinch-zooming inherently changes the scroll position, and may do so 
differently depending on what the focus point of the pinch gesture is.
 This aspect of pinch-zooming could be considered orthogonal to 
panning, if we define panning strictly as gestures while a single 
touch point is down. The way the spec is currently worded, it refers 
to "scrolling" which could be interpreted as something that implicitly
 happens during a pinch-zoom, in which case disallowing pan-x and 
pan-y implicitly disallows pinch-zoom.

(I should probably just try Edge and see what happens, but regardless,
 it's something that should be explicitly stated if this makes into 
the spec).

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Received on Wednesday, 22 June 2016 14:31:08 UTC