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[Bug 20710] New: Clarify touch-action processing model

From: <bugzilla@jessica.w3.org>
Date: Sat, 19 Jan 2013 00:54:54 +0000
To: public-pointer-events@w3.org
Message-ID: <bug-20710-5978@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20710

            Bug ID: 20710
           Summary: Clarify touch-action processing model
    Classification: Unclassified
           Product: PointerEventsWG
           Version: unspecified
          Hardware: PC
                OS: Windows NT
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Pointer Events specification
          Assignee: jrossi@microsoft.com
          Reporter: jrossi@microsoft.com
        QA Contact: public-pointer-events-bugzilla@w3.org
                CC: public-pointer-events@w3.org

Per CSS WG feedback, the following text should be added to clarify the
processing model for touch-action:

> When a user touches an element, the effect of that touch is determined by the 'touch-action' property and the default touch behaviors on the element and its ancestors.  To determine the effect of a touch, find the nearest ancestor (starting from the element itself) that either has a default touch behavior or that has "touch-action: none".  If that element has “touch-action: none”, do nothing.  Otherwise, allow the element to start considering the touch for the purposes of executing its default touch behavior.

http://lists.w3.org/Archives/Public/public-pointer-events/2013JanMar/0026.html

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