[Webkit-unassigned] [Bug 52098] New: Need to cleanup Position, VisiblePosition, TextIterator, and visible_units

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=52098

           Summary: Need to cleanup Position, VisiblePosition,
                    TextIterator, and visible_units
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: Enhancement
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: rniwa at webkit.org
                CC: eric at webkit.org, darin at apple.com, ojan at chromium.org,
                    rolandsteiner at chromium.org, tkent at chromium.org,
                    enrica at apple.com, morrita at google.com,
                    kalman at chromium.org, leviw at google.com


Right now, Position, VisiblePosition, and TextIterator each implements a logic to walk DOM tree visually.  Each one provides slightly different functionality and each has its own quirks. Because we have lot of inconsistencies and interdependencies, it has been a burden on people working on editing code.

We should cleanup these 3 classes in addition to functions provided in visible_units.cpp for Position/VisiblePosition.

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