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[Bug 20108] New: Clarify pointer capture behavior

From: <bugzilla@jessica.w3.org>
Date: Wed, 28 Nov 2012 01:09:31 +0000
To: public-pointer-events@w3.org
Message-ID: <bug-20108-5978@http.www.w3.org/Bugs/Public/>

            Bug ID: 20108
           Summary: Clarify pointer capture behavior
    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: dave.null@w3.org
                CC: public-pointer-events@w3.org

Opening on behalf of Brandon Wallace: 


Recommended details to add (based on IE10's implementation):

  1.  You can only capture a pointer if buttons>0 (e.g. mouse button is down,
finger is on screen, or pen tip is on digitizer). So you can't just spy on
interactions with UI outside your scope.
  2.  Once you set capture to a pointer, its target property will always be the
capturing element. So while you can monitor movement of the pointer outside
your contact (again, only while it's down), you can't get references to
elements, etc.
  3.  Capture is automatically release when the pointer comes up (e.g.
  4.  Pointer events are not dispatched to elements not in the document.

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Received on Wednesday, 28 November 2012 01:09:33 UTC

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