[Webkit-unassigned] [Bug 33950] New: contentEditable with "position:relative" paragraphs is buggy

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=33950

           Summary: contentEditable with "position:relative" paragraphs is
                    buggy
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: All
            Status: UNCONFIRMED
          Severity: Normal
          Priority: P2
         Component: HTML Editing
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: L.Plant.98 at cantab.net


With "position:relative" set for paragraphs, editing content using
contentEditable=true produces weird behaviour and bugs, and even crashes
sometimes.

The simplest test case is something like this: In a paragraph, type [Enter] 1
[Enter] 2 [Enter] 3 [Enter] 4 [Up] [Up] [Backspace]

The result is that the two paragraphs after the caret are switched and merged,
with a stray <br> appearing.

A test page is here: http://lukeplant.me.uk/webkitbug.html

I found this bug in a very recent Chrome 4 on Linux, and Safari 4 on Windows,
which is why I'm filing here, since I presume this must be a WebKit bug.  I'm
still building the most recent WebKit to test it out.  The bug was not present
in Safari 3.1, I think.  Opera and Firefox handle this fine.

By the way, the reason for wanting to put "position:relative" on paragraphs
like this is to develop a text editor that uses ':before' to be able to
indicate things like any class that is applied to the text.  See
http://bitbucket.org/spookylukey/semanticeditor/wiki/Home for screen shot. 
position:relative is needed to establish a containing box for the ":before"
element, so that it can be relatively positioned.  Without this, it is
difficult to put additional information inside the editing box.

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