renderlistmarker.cpp

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            group[0] = static_cast<AbstractCJKChar>(digit0 + digitValue);
            if (digitValue)
                group[1] = fourthDigitMarker;
        }

        // Remove the tens digit, but leave the marker, for any group that has
        // a value of less than 20.
        if (groupValue < 20) {
            ASSERT(group[4] == noChar || group[4] == digit0 || group[4] == digit1);
            group[4] = noChar;
        }

        if (number == 0)
            break;
    }

    // Convert into characters, omitting consecutive runs of digit0 and
    // any trailing digit0.
    int length = 0;
    UChar characters[bufferLength];
    AbstractCJKChar last = noChar;
    for (int i = 0; i < bufferLength; ++i) {
        AbstractCJKChar a = buffer[i];
        if (a != noChar) {
            if (a != digit0 || last != digit0)
                characters[length++] = table[a - 1];
            last = a;
        }
    }
    if (last == digit0)
        --length;

    return String(characters, length);
}

String listMarkerText(EListStyleType type, int value)
{
    switch (type) {
        case LNONE:
            return "";

        // We use the same characters for text security.
        // See RenderText::setInternalString.
        case CIRCLE:
            return String(&whiteBullet, 1);
        case DISC:
            return String(&bullet, 1);
        case SQUARE:
            // The CSS 2.1 test suite uses U+25EE BLACK MEDIUM SMALL SQUARE
            // instead, but I think this looks better.
            return String(&blackSquare, 1);

        case LDECIMAL:
            return String::number(value);
        case DECIMAL_LEADING_ZERO:
            if (value < -9 || value > 9)
                return String::number(value);
            if (value < 0)
                return "-0" + String::number(-value); // -01 to -09
            return "0" + String::number(value); // 00 to 09

        case LOWER_ALPHA:
        case LOWER_LATIN: {
            static const UChar lowerLatinAlphabet[26] = {
                'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
                'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z'
            };
            return toAlphabetic(value, lowerLatinAlphabet, 26);
        }
        case UPPER_ALPHA:
        case UPPER_LATIN: {
            static const UChar upperLatinAlphabet[26] = {
                'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
                'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z'
            };
            return toAlphabetic(value, upperLatinAlphabet, 26);
        }
        case LOWER_GREEK: {
            static const UChar lowerGreekAlphabet[24] = {
                0x03B1, 0x03B2, 0x03B3, 0x03B4, 0x03B5, 0x03B6, 0x03B7, 0x03B8,
                0x03B9, 0x03BA, 0x03BB, 0x03BC, 0x03BD, 0x03BE, 0x03BF, 0x03C0,
                0x03C1, 0x03C3, 0x03C4, 0x03C5, 0x03C6, 0x03C7, 0x03C8, 0x03C9
            };
            return toAlphabetic(value, lowerGreekAlphabet, 24);
        }

        case HIRAGANA: {
            // FIXME: This table comes from the CSS3 draft, and is probably
            // incorrect, given the comments in that draft.
            static const UChar hiraganaAlphabet[48] = {
                0x3042, 0x3044, 0x3046, 0x3048, 0x304A, 0x304B, 0x304D, 0x304F,
                0x3051, 0x3053, 0x3055, 0x3057, 0x3059, 0x305B, 0x305D, 0x305F,
                0x3061, 0x3064, 0x3066, 0x3068, 0x306A, 0x306B, 0x306C, 0x306D,
                0x306E, 0x306F, 0x3072, 0x3075, 0x3078, 0x307B, 0x307E, 0x307F,
                0x3080, 0x3081, 0x3082, 0x3084, 0x3086, 0x3088, 0x3089, 0x308A,
                0x308B, 0x308C, 0x308D, 0x308F, 0x3090, 0x3091, 0x3092, 0x3093
            };
            return toAlphabetic(value, hiraganaAlphabet, 48);
        }
        case HIRAGANA_IROHA: {
            // FIXME: This table comes from the CSS3 draft, and is probably
            // incorrect, given the comments in that draft.
            static const UChar hiraganaIrohaAlphabet[47] = {
                0x3044, 0x308D, 0x306F, 0x306B, 0x307B, 0x3078, 0x3068, 0x3061,
                0x308A, 0x306C, 0x308B, 0x3092, 0x308F, 0x304B, 0x3088, 0x305F,
                0x308C, 0x305D, 0x3064, 0x306D, 0x306A, 0x3089, 0x3080, 0x3046,
                0x3090, 0x306E, 0x304A, 0x304F, 0x3084, 0x307E, 0x3051, 0x3075,
                0x3053, 0x3048, 0x3066, 0x3042, 0x3055, 0x304D, 0x3086, 0x3081,
                0x307F, 0x3057, 0x3091, 0x3072, 0x3082, 0x305B, 0x3059
            };
            return toAlphabetic(value, hiraganaIrohaAlphabet, 47);
        }
        case KATAKANA: {
            // FIXME: This table comes from the CSS3 draft, and is probably
            // incorrect, given the comments in that draft.
            static const UChar katakanaAlphabet[48] = {
                0x30A2, 0x30A4, 0x30A6, 0x30A8, 0x30AA, 0x30AB, 0x30AD, 0x30AF,
                0x30B1, 0x30B3, 0x30B5, 0x30B7, 0x30B9, 0x30BB, 0x30BD, 0x30BF,
                0x30C1, 0x30C4, 0x30C6, 0x30C8, 0x30CA, 0x30CB, 0x30CC, 0x30CD,
                0x30CE, 0x30CF, 0x30D2, 0x30D5, 0x30D8, 0x30DB, 0x30DE, 0x30DF,
                0x30E0, 0x30E1, 0x30E2, 0x30E4, 0x30E6, 0x30E8, 0x30E9, 0x30EA,
                0x30EB, 0x30EC, 0x30ED, 0x30EF, 0x30F0, 0x30F1, 0x30F2, 0x30F3
            };
            return toAlphabetic(value, katakanaAlphabet, 48);
        }
        case KATAKANA_IROHA: {
            // FIXME: This table comes from the CSS3 draft, and is probably
            // incorrect, given the comments in that draft.
            static const UChar katakanaIrohaAlphabet[47] = {
                0x30A4, 0x30ED, 0x30CF, 0x30CB, 0x30DB, 0x30D8, 0x30C8, 0x30C1,
                0x30EA, 0x30CC, 0x30EB, 0x30F2, 0x30EF, 0x30AB, 0x30E8, 0x30BF,
                0x30EC, 0x30BD, 0x30C4, 0x30CD, 0x30CA, 0x30E9, 0x30E0, 0x30A6,
                0x30F0, 0x30CE, 0x30AA, 0x30AF, 0x30E4, 0x30DE, 0x30B1, 0x30D5,
                0x30B3, 0x30A8, 0x30C6, 0x30A2, 0x30B5, 0x30AD, 0x30E6, 0x30E1,
                0x30DF, 0x30B7, 0x30F1, 0x30D2, 0x30E2, 0x30BB, 0x30B9
            };
            return toAlphabetic(value, katakanaIrohaAlphabet, 47);
        }

        case CJK_IDEOGRAPHIC: {
            static const UChar traditionalChineseInformalTable[16] = {
                0x842C, 0x5104, 0x5146,
                0x5341, 0x767E, 0x5343,
                0x96F6, 0x4E00, 0x4E8C, 0x4E09, 0x56DB,
                0x4E94, 0x516D, 0x4E03, 0x516B, 0x4E5D
            };
            return toCJKIdeographic(value, traditionalChineseInformalTable);
        }

        case LOWER_ROMAN:
            return toRoman(value, false);
        case UPPER_ROMAN:
            return toRoman(value, true);

        case ARMENIAN:
            // CSS3 says "armenian" means "lower-armenian".
            // But the CSS2.1 test suite contains uppercase test results for "armenian",
            // so we'll match the test suite.
            return toArmenian(value, true);
        case GEORGIAN:
            return toGeorgian(value);
        case HEBREW:
            return toHebrew(value);
    }

    ASSERT_NOT_REACHED();
    return "";
}

RenderListMarker::RenderListMarker(RenderListItem* item)
    : RenderBox(item->document())
    , m_listItem(item)
{
    // init RenderObject attributes
    setInline(true);   // our object is Inline
    setReplaced(true); // pretend to be replaced
}

RenderListMarker::~RenderListMarker()
{
    if (m_image)
        m_image->removeClient(this);
}

void RenderListMarker::styleWillChange(StyleDifference diff, const RenderStyle* newStyle)
{
    if (style() && (newStyle->listStylePosition() != style()->listStylePosition() || newStyle->listStyleType() != style()->listStyleType()))
        setNeedsLayoutAndPrefWidthsRecalc();
    
    RenderBox::styleWillChange(diff, newStyle);
}

void RenderListMarker::styleDidChange(StyleDifference diff, const RenderStyle* oldStyle)
{
    RenderBox::styleDidChange(diff, oldStyle);

    if (m_image != style()->listStyleImage()) {
        if (m_image)
            m_image->removeClient(this);
        m_image = style()->listStyleImage();
        if (m_image)
            m_image->addClient(this);
    }
}

InlineBox* RenderListMarker::createInlineBox()
{
    ListMarkerBox* box = new (renderArena()) ListMarkerBox(this);
    m_inlineBoxWrapper = box;
    return box;
}

bool RenderListMarker::isImage() const
{
    return m_image && !m_image->errorOccurred();
}

void RenderListMarker::paint(PaintInfo& paintInfo, int tx, int ty)
{
    if (paintInfo.phase != PaintPhaseForeground)
        return;
    
    if (style()->visibility() != VISIBLE)
        return;

    IntRect marker = getRelativeMarkerRect();
    marker.move(tx, ty);

    IntRect box(tx + x(), ty + y(), width(), height());

    if (box.y() > paintInfo.rect.bottom() || box.y() + box.height() < paintInfo.rect.y())
        return;

    if (hasBoxDecorations()) 
        paintBoxDecorations(paintInfo, box.x(), box.y());

    GraphicsContext* context = paintInfo.context;

    if (isImage()) {
#if PLATFORM(MAC)
        if (style()->highlight() != nullAtom && !paintInfo.context->paintingDisabled())
            paintCustomHighlight(tx, ty, style()->highlight(), true);
#endif
        context->drawImage(m_image->image(this, marker.size()), marker.location());
        if (selectionState() != SelectionNone) {
            // FIXME: selectionRect() is in absolute, not painting coordinates.
            context->fillRect(selectionRect(), selectionBackgroundColor());
        }
        return;
    }

#if PLATFORM(MAC)
    // FIXME: paint gap between marker and list item proper
    if (style()->highlight() != nullAtom && !paintInfo.context->paintingDisabled())
        paintCustomHighlight(tx, ty, style()->highlight(), true);
#endif

    if (selectionState() != SelectionNone) {
        // FIXME: selectionRect() is in absolute, not painting coordinates.
        context->fillRect(selectionRect(), selectionBackgroundColor());
    }

    const Color color(style()->color());
    context->setStrokeColor(color);
    context->setStrokeStyle(SolidStroke);
    context->setStrokeThickness(1.0f);
    context->setFillColor(color);

    switch (style()->listStyleType()) {
        case DISC:
            context->drawEllipse(marker);
            return;
        case CIRCLE:
            context->setFillColor(Color::transparent);
            context->drawEllipse(marker);
            return;
        case SQUARE:
            context->drawRect(marker);
            return;
        case LNONE:
            return;
        case ARMENIAN:
        case CJK_IDEOGRAPHIC:
        case DECIMAL_LEADING_ZERO:
        case GEORGIAN:
        case HEBREW:
        case HIRAGANA:
        case HIRAGANA_IROHA:
        case KATAKANA:
        case KATAKANA_IROHA:
        case LDECIMAL:
        case LOWER_ALPHA:
        case LOWER_GREEK:
        case LOWER_LATIN:
        case LOWER_ROMAN:
        case UPPER_ALPHA:
        case UPPER_LATIN:
        case UPPER_ROMAN:
            break;
    }
    if (m_text.isEmpty())
        return;