[Webkit-unassigned] [Bug 87902] New: Add an helper function to get the style for a cell's flow computation

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=87902

           Summary: Add an helper function to get the style for a cell's
                    flow computation
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: Tables
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: jchaffraix at webkit.org
                CC: robert at webkit.org
            Blocks: 87900


Currently the code makes the assumption that we use the table's direction and writing mode for flow resolution.

While CSS writing disables writing mode on table row groups and rows, it does allow direction on the same table parts. This means that the current code makes the wrong assumption and will break pretty badly if we start mixing directions.

In order to change that, a first step would be to introduce an helper function to get the right style for flow resolution (flow = direction and writing mode). We can then safely change this function to operate on a different level.

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