[Webkit-unassigned] [Bug 128616] New: position:-webkit-sticky is not preserved across a copy

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=128616

           Summary: position:-webkit-sticky is not preserved across a copy
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: Unspecified
        OS/Version: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: mmaxfield at apple.com


Right now we don't copy position:-webkit-sticky. This is because:
1. When copying styled elements, we parse the style properties again
2. CSSParserContext has a flag which can disable parsing -webkit-sticky
3. There are two constructors to CSSParserContext: one that takes a document and sets up the aforementioned flag, and a simple one that doesn't take a document and sets all the enableFoo flags to false
4. At the relevant place within copy code, we are far removed from the Document object, so we instead call the second constructor, thereby disabling parsing of -webkit-sticky

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