[Webkit-unassigned] [Bug 8683] New: HTMLInputElement::state can't distinguish null string from empty string

[bugzilla-daemon at opendarwin.org]

http://bugzilla.opendarwin.org/show_bug.cgi?id=8683

           Summary: HTMLInputElement::state can't distinguish null string
                    from empty string
           Product: WebKit
           Version: 420+ (nightly)
          Platform: Macintosh
               URL: http://imdb.com/title/tt0120907/
        OS/Version: Mac OS X 10.4
            Status: UNCONFIRMED
          Severity: normal
          Priority: P2
         Component: Forms
        AssignedTo: webkit-unassigned at opendarwin.org
        ReportedBy: coldwinter at katamail.com
                CC: darin at apple.com


This bug has previously been reported in the comments of bug 7691.

How to reproduce this:

1 - Go to http://imdb.com/title/tt0120907/
2 - Click on "David Cronenberg".
3 - Go back using Safari's back button.
4 - The search button is rendered incorrectly.

This happens in TOT (r14126).

Darin said about this:

The new bug doesn't have to do with the button rendering itself, but rather
with the way form data is saved and restored. Apparently a null is saved, but
an empty string is restored, or vice versa.

The fix will be to change HTMLInputElement::state and
HTMLInputElement::restoreState so they can distinguish a state of null string
from a state of empty string, which should be straightforward.


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