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Add direction-specific pan values to touch-action?

From: Rick Byers <rbyers@chromium.org>
Date: Tue, 17 Mar 2015 12:05:57 -0400
Message-ID: <CAFUtAY-06C6GXHkgAMDvzr7auDqVsc2L3Mhi4=_t7w9XbW8usA@mail.gmail.com>
To: "public-pointer-events@w3.org" <public-pointer-events@w3.org>
There was a great discussion here about a limitation of touch action:
https://bugs.webkit.org/show_bug.cgi?id=133112#c11.  Basically we agreed
that adding values like 'pan-left' and 'pan-right' (in addition to just
'pan-x') would enable some additional scenarios which Ben Poulain (Safari
input engineer) felt were important.  In particular, it would enable an
event-driven slider to switch to scrolling its container after reaching its
own extent.

I agree with this position.  It's still not a perfect solution to the
problem (I think ultimately you'll need some sort of rich scroll
customization API
<https://docs.google.com/a/chromium.org/document/d/1VnvAqeWFG9JFZfgG5evBqrLGDZYRE5w6G5jEDORekPY/edit#heading=h.kd0gtwwz5bf9>),
but it's a very logical addition and one I'd be happy to add to blink.

What do others think?

Rick
Received on Tuesday, 17 March 2015 16:06:45 UTC

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