[Webkit-unassigned] [Bug 118737] New: Add support for displaystyle

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=118737

           Summary: Add support for displaystyle
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
               URL: http://www.w3.org/TR/2010/REC-MathML3-20101021/chapter
                    3.html#presm.scriptlevel
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: MathML
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: fred.wang at free.fr


Created an attachment (id=206790)
 --> (https://bugs.webkit.org/attachment.cgi?id=206790&action=review)
testcase

<math display="block"> and <math display="inline"> currently display the formula as a block or inline box. However, they should also set the initial value of displaystyle to true and false respectively. The displaystyle value can also be set via an explicit displaystyle attribute and is reset to false by some elements (like mfrac, scripts, roots etc). When displaystyle=true, the operators marked largeop (either via an explicit attribute or as computed from the operator dictionary) should be drawn larger. When displaystyle=false, the operators marked movablelimits (either via an explicit attribute or as computed from the operator dictionary) should have its under/over limits drawn as sub/sup. See the testcase, where a sum symbol is used (largeop and movablelimits per the operator dictionary).

See also bucket 3 of the MathML Acid3 tests:
http://fred-wang.github.io/AcidTestsMathML/acid3/d
http://fred-wang.github.io/AcidTestsMathML/acid3/description.html

See chapter 3 of the MathML spec for details:
http://www.w3.org/TR/2010/REC-MathML3-20101021/chapter3.html

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