Re: [pointerevents] Touch-action isn't flexible enough for direction-specific behavior

Note that we [discussed this feature at the 
hackathon](https://docs.google.com/document/d/1b8aJOJcGXakstFJslKl87QwvlFHhHwGbQfJwnUTBBHg/edit).
   Although it'll probably be over a year before Edge can implement, 
they're [OK with the 
design](https://developer.microsoft.com/en-us/microsoft-edge/platform/status/touchactionpanuppandownpanleftpanrightcssproperties).

We noticed a subtle difference with what twitter.com does in Chrome 
today and what's possible with this feature: if you start at 
scrollTop=0, pan down, and then pan up you can get the p2r effect to 
trigger.  It's not clear that that's any better UX than what will be 
possible via touch-action (where the effect will only trigger if you 
start by panning up) and it's fairly subtle so we're not worried about
 it.

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Received on Thursday, 28 July 2016 16:53:39 UTC