[Webkit-unassigned] [Bug 47729] New: Provide a mechanism to get the tight bounding box of a container with 3D transformed elements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=47729

           Summary: Provide a mechanism to get the tight bounding box of a
                    container with 3D transformed elements
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
               URL: http://developer.apple.com/library/safari/#samplecode/
                    FingerTips/Introduction/Intro.html
        OS/Version: Mac OS X 10.6
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: ml at graougraou.com


When dealing with 3D transformed content, the structural container may have zero-size CSS metrics. The Apple Finger Tips sample code is a good example (see URL). For instance, in that code the #ring element has 0x0 CSS metrics and getBoundingClientRect() reports width and height to be 0 and 0. It would be great to have a functionality to get the tight bounding box of such elements to hide away the complexity of dealing with 3D maths.

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