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[Bug 20110] New: Make compatibility mouse events optional

From: <bugzilla@jessica.w3.org>
Date: Wed, 28 Nov 2012 01:18:43 +0000
To: public-pointer-events@w3.org
Message-ID: <bug-20110-5978@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=20110

            Bug ID: 20110
           Summary: Make compatibility mouse events optional
    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 Rick Byers.

From: Rick Byers <rbyers@google.com> 
Date: Tue, 20 Nov 2012 13:23:31 -0500
Message-ID:
<CAFUtAY-7njviQ4u96o82ftboNT8dksdyN3Y-=nszTUx-kq6Cnw@mail.gmail.com> 
To: public-pointer-events@w3.org 

Hi,
In the compatibility with mouse events section [1], the pointer events
draft dictates when mouseenter and mouseleave events should be
dispatched.  However, I believe today only IE and Opera support these
events [2].  Can we add an 'if supported by the UA' to the wording to
make it clear that some UAs won't dispatch these events?    Of course
the wording around  mouseover/mouseout (which are universally
supported) should not change.

Bigger picture, I'm curious to hear why 'pointerenter' and
'pointerleave' weren't included in the pointer event design for IE.
I've heard some web developers say that they prefer the enter/leave
semantics (non-bubbling) to the over/out semantics.

Thanks,
   Rick

[1]
http://dvcs.w3.org/hg/pointerevents/raw-file/tip/pointerEvents.html#compatibility-mapping-with-mouse-events
[2] http://www.quirksmode.org/dom/events/mouseover.html



http://lists.w3.org/Archives/Public/public-pointer-events/2012OctDec/0035.html

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