W3C home > Mailing lists > Public > public-pointer-events@w3.org > January to March 2016

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

From: Rick Byers via GitHub <sysbot+gh@w3.org>
Date: Wed, 13 Jan 2016 23:04:47 +0000
To: public-pointer-events@w3.org
Message-ID: <issues.opened-126537276-1452726287-sysbot+gh@w3.org>
RByers has just created a new issue for 
https://github.com/w3c/pointerevents:

== Touch-action doesn't permit direction-specific scroll AND 
pinch-zoom ==
Consider a common scenario like a long web page with an image carousel
 .  Our guidance to developers would be to put something like 
'touch-action: pan-y' on the carousel to permit custom horizontal 
event handling without disabling scrolling.  But this can be an 
accessibility issue - if the user can pinch-zoom elsewhere in the 
document, shouldn't they be able to pinch-zoom on the carousel as 
well?

Edge supports this with the `pinch-zoom` [touch-action 
token](https://msdn.microsoft.com/en-ca/library/windows/apps/hh767313.aspx)
 but we omitted that from the spec due to "pinch" being out of scope.
  But then we ended up referring to "continuous zooming" in normative 
text anyway.  So why not just add a `continuous-zoom` token too?

Please view or discuss this issue at 
https://github.com/w3c/pointerevents/issues/29 using your GitHub 
account
Received on Wednesday, 13 January 2016 23:04:49 UTC

This archive was generated by hypermail 2.3.1 : Wednesday, 13 January 2016 23:04:49 UTC