[Webkit-unassigned] [Bug 44886] New: Reflected attribute input.size wraps on negative values (Chrome), or returns them (Safari)

Mon Aug 30 12:24:43 PDT 2010

https://bugs.webkit.org/show_bug.cgi?id=44886

           Summary: Reflected attribute input.size wraps on negative
                    values (Chrome), or returns them (Safari)
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Minor
          Priority: P2
         Component: HTML DOM
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: Simetrical+webkit at gmail.com

Test case:

<!doctype html>
<script>
    var el = document.createElement("input");
    el.setAttribute("size", "-1");
    alert(el.size);
</script>

Chrome dev on Ubuntu alerts 4294967295, Safari 5 on XP alerts -1, IE8 alerts 20, Opera 10.60 alerts -1, recent Firefox nightly alerts 0.  The winner per the spec is Firefox:

"""
If a reflecting IDL attribute is an unsigned integer type (unsigned long) then, on getting, the content attribute must be parsed according to the rules for parsing non-negative integers, and if that is successful, and the value is in the range of the IDL attribute's type, the resulting value must be returned. If, on the other hand, it fails or returns an out of range value, or if the attribute is absent, the default value must be returned instead, or 0 if there is no default value.
"""
http://www.whatwg.org/specs/web-apps/current-work/multipage/urls.html#reflecting-content-attributes-in-idl-attributes

There is no default value specified, so since parsing as a non-negative integer fails, it should return 0.  Both Chrome and Safari need to change here -- should I file separate bugs for both of them, or is this one fine by itself?

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