[Webkit-unassigned] [Bug 60627] CSS letter-spacing integer truncation

Tue Jun 14 14:42:39 PDT 2011

https://bugs.webkit.org/show_bug.cgi?id=60627

--- Comment #9 from Berend-Jan Wever <skylined at chromium.org>  2011-06-14 14:42:39 PST ---
You can check the offsetWidth of spans, like so:

<html>
  <body>
    <span id="0x7FFE" style="letter-spacing: 32766px;">a</span>
    <span id="0x7FFF" style="letter-spacing: 32767px;">a</span>
    <span id="0x8000" style="letter-spacing: 32768px;">a</span>
    <span id="-0x7FFF" style="letter-spacing: -32767px;">a</span>
    <span id="-0x8000" style="letter-spacing: -32768px;">a</span>
    <span id="-0x8001" style="letter-spacing: -32769px;">a</span>
    <script>
      var o0x7FFE = document.getElementById('0x7FFE'),
          o0x7FFF = document.getElementById('0x7FFF'),
          o0x8000 = document.getElementById('0x8000');
          o_0x7FFF = document.getElementById('-0x7FFF');
          o_0x8000 = document.getElementById('-0x8000');
          o_0x8001 = document.getElementById('-0x8001');
      var iDiff1 = o0x7FFF.offsetWidth - o0x7FFE.offsetWidth,
          iDiff2 = o0x8000.offsetWidth - o0x7FFF.offsetWidth,
          i_Diff1 = o_0x8000.offsetWidth - o_0x7FFF.offsetWidth,
          i_Diff2 = o_0x8001.offsetWidth - o_0x8000.offsetWidth;

      document.body.innerHTML = iDiff1 == iDiff2 && i_Diff1 == i_Diff2 ?
          'PASS' :
          'FAIL (' + iDiff1 + ' vs ' + iDiff2 + ' and ' + i_Diff1 + ' vs ' + i_Diff2 + '))';
    </script>
  </body>
</html>

The checks will probably have to be modified to suit the expected results - I'm not sure what to expect after the patch.

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