static void
getRangeExtentsCB(AtkText *aText, gint aStartOffset, gint aEndOffset,
                  AtkCoordType aCoords, AtkTextRectangle *aRect)
{
  AccessibleWrap* accWrap = GetAccessibleWrap(ATK_OBJECT(aText));
  if(!accWrap || !aRect)
    return;

  HyperTextAccessible* text = accWrap->AsHyperText();
  if (!text || !text->IsTextRole())
    return;

    int32_t extY = 0, extX = 0;
    int32_t extWidth = 0, extHeight = 0;

    uint32_t geckoCoordType;
    if (aCoords == ATK_XY_SCREEN)
        geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_SCREEN_RELATIVE;
    else
        geckoCoordType = nsIAccessibleCoordinateType::COORDTYPE_WINDOW_RELATIVE;

#ifdef DEBUG
    nsresult rv =
#endif
    text->GetRangeExtents(aStartOffset, aEndOffset,
                          &extX, &extY,
                          &extWidth, &extHeight,
                          geckoCoordType);
    aRect->x = extX;
    aRect->y = extY;
    aRect->width = extWidth;
    aRect->height = extHeight;
    NS_ASSERTION(NS_SUCCEEDED(rv),
                 "MaiInterfaceText::GetRangeExtents, failed\n");
}