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[Bug 16391] New: regionLayoutUpdate needs to be async

From: <bugzilla@jessica.w3.org>
Date: Thu, 15 Mar 2012 20:43:23 +0000
To: public-css-bugzilla@w3.org
Message-ID: <bug-16391-5148@http.www.w3.org/Bugs/Public/>
https://www.w3.org/Bugs/Public/show_bug.cgi?id=16391

           Summary: regionLayoutUpdate needs to be async
           Product: CSS
           Version: unspecified
          Platform: PC
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: Regions
        AssignedTo: vhardy@adobe.com
        ReportedBy: rniwa@webkit.org
         QAContact: public-css-bugzilla@w3.org
                CC: eoconnor@apple.com


http://dev.w3.org/csswg/css3-regions/#region-flow-layout-events
"Region Event Targets dispatch regionLayoutUpdate events when there is a
possible layout change of their named flow segment."

The spec needs to explicitly state the timing at which this event needs to be
fired. Given that most implementations can't fire synchronous events during or
immediately after the layout (since layout itself happens lazily when needed
rather than when the value is changed), I suspect we need to use end-of-task or
end-of-micro-task as the specific timing.

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Received on Thursday, 15 March 2012 20:43:25 UTC

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