RenderListMarker.cpp   [plain text]

/*
 * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
 *           (C) 1999 Antti Koivisto (koivisto@kde.org)
 * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
 * Copyright (C) 2006 Andrew Wellington (proton@wiretapped.net)
 * Copyright (C) 2010 Daniel Bates (dbates@intudata.com)
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public License
 * along with this library; see the file COPYING.LIB.  If not, write to
 * the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
 * Boston, MA 02110-1301, USA.
 *
 */

#include "config.h"
#include "RenderListMarker.h"

#include "Document.h"
#include "FontCascade.h"
#include "GraphicsContext.h"
#include "InlineElementBox.h"
#include "RenderLayer.h"
#include "RenderListItem.h"
#include "RenderView.h"
#include <wtf/StackStats.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/unicode/CharacterNames.h>

using namespace WTF;
using namespace Unicode;

namespace WebCore {

const int cMarkerPadding = 7;

enum SequenceType { NumericSequence, AlphabeticSequence };

static NEVER_INLINE void toRoman(StringBuilder& builder, int number, bool upper)
{
    // FIXME: CSS3 describes how to make this work for much larger numbers,
    // using overbars and special characters. It also specifies the characters
    // in the range U+2160 to U+217F instead of standard ASCII ones.
    ASSERT(number >= 1 && number <= 3999);

    // Big enough to store largest roman number less than 3999 which
    // is 3888 (MMMDCCCLXXXVIII)
    const int lettersSize = 15;
    LChar letters[lettersSize];

    int length = 0;
    const LChar ldigits[] = { 'i', 'v', 'x', 'l', 'c', 'd', 'm' };
    const LChar udigits[] = { 'I', 'V', 'X', 'L', 'C', 'D', 'M' };
    const LChar* digits = upper ? udigits : ldigits;
    int d = 0;
    do {
        int num = number % 10;
        if (num % 5 < 4)
            for (int i = num % 5; i > 0; i--)
                letters[lettersSize - ++length] = digits[d];
        if (num >= 4 && num <= 8)
            letters[lettersSize - ++length] = digits[d + 1];
        if (num == 9)
            letters[lettersSize - ++length] = digits[d + 2];
        if (num % 5 == 4)
            letters[lettersSize - ++length] = digits[d];
        number /= 10;
        d += 2;
    } while (number);

    ASSERT(length <= lettersSize);
    builder.append(&letters[lettersSize - length], length);
}

template <typename CharacterType>
static inline void toAlphabeticOrNumeric(StringBuilder& builder, int number, const CharacterType* sequence, unsigned sequenceSize, SequenceType type)
{
    ASSERT(sequenceSize >= 2);

    // Taking sizeof(number) in the expression below doesn't work with some compilers.
    const int lettersSize = sizeof(int) * 8 + 1; // Binary is the worst case; requires one character per bit plus a minus sign.

    CharacterType letters[lettersSize];

    bool isNegativeNumber = false;
    unsigned numberShadow = number;
    if (type == AlphabeticSequence) {
        ASSERT(number > 0);
        --numberShadow;
    } else if (number < 0) {
        numberShadow = -number;
        isNegativeNumber = true;
    }
    letters[lettersSize - 1] = sequence[numberShadow % sequenceSize];
    int length = 1;

    if (type == AlphabeticSequence) {
        while ((numberShadow /= sequenceSize) > 0) {
            --numberShadow;
            letters[lettersSize - ++length] = sequence[numberShadow % sequenceSize];
        }
    } else {
        while ((numberShadow /= sequenceSize) > 0)
            letters[lettersSize - ++length] = sequence[numberShadow % sequenceSize];
    }
    if (isNegativeNumber)
        letters[lettersSize - ++length] = hyphenMinus;

    ASSERT(length <= lettersSize);
    builder.append(&letters[lettersSize - length], length);
}

template <typename CharacterType>
static NEVER_INLINE void toSymbolic(StringBuilder& builder, int number, const CharacterType* symbols, unsigned symbolsSize)
{
    ASSERT(number > 0);
    ASSERT(symbolsSize >= 1);
    unsigned numberShadow = number;
    --numberShadow;

    // The asterisks list-style-type is the worst case; we show |numberShadow| asterisks.
    builder.append(symbols[numberShadow % symbolsSize]);
    unsigned numSymbols = numberShadow / symbolsSize;
    while (numSymbols--)
        builder.append(symbols[numberShadow % symbolsSize]);
}

template <typename CharacterType>
static NEVER_INLINE void toAlphabetic(StringBuilder& builder, int number, const CharacterType* alphabet, unsigned alphabetSize)
{
    toAlphabeticOrNumeric(builder, number, alphabet, alphabetSize, AlphabeticSequence);
}

template <typename CharacterType>
static NEVER_INLINE void toNumeric(StringBuilder& builder, int number, const CharacterType* numerals, unsigned numeralsSize)
{
    toAlphabeticOrNumeric(builder, number, numerals, numeralsSize, NumericSequence);
}

template <typename CharacterType, size_t size>
static inline void toAlphabetic(StringBuilder& builder, int number, const CharacterType(&alphabet)[size])
{
    toAlphabetic(builder, number, alphabet, size);
}

template <typename CharacterType, size_t size>
static inline void toNumeric(StringBuilder& builder, int number, const CharacterType(&alphabet)[size])
{
    toNumeric(builder, number, alphabet, size);
}

template <typename CharacterType, size_t size>
static inline void toSymbolic(StringBuilder& builder, int number, const CharacterType(&alphabet)[size])
{    
    toSymbolic(builder, number, alphabet, size);
}

static NEVER_INLINE int toHebrewUnder1000(int number, UChar letters[5])
{
    // FIXME: CSS3 mentions various refinements not implemented here.
    // FIXME: Should take a look at Mozilla's HebrewToText function (in nsBulletFrame).
    ASSERT(number >= 0 && number < 1000);
    int length = 0;
    int fourHundreds = number / 400;
    for (int i = 0; i < fourHundreds; i++)
        letters[length++] = 1511 + 3;
    number %= 400;
    if (number / 100)
        letters[length++] = 1511 + (number / 100) - 1;
    number %= 100;
    if (number == 15 || number == 16) {
        letters[length++] = 1487 + 9;
        letters[length++] = 1487 + number - 9;
    } else {
        if (int tens = number / 10) {
            static const UChar hebrewTens[9] = { 1497, 1499, 1500, 1502, 1504, 1505, 1506, 1508, 1510 };
            letters[length++] = hebrewTens[tens - 1];
        }
        if (int ones = number % 10)
            letters[length++] = 1487 + ones;
    }
    ASSERT(length <= 5);
    return length;
}

static NEVER_INLINE void toHebrew(StringBuilder& builder, int number)
{
    // FIXME: CSS3 mentions ways to make this work for much larger numbers.
    ASSERT(number >= 0 && number <= 999999);

    if (number == 0) {
        static const UChar hebrewZero[3] = { 0x05D0, 0x05E4, 0x05E1 };
        builder.append(hebrewZero, 3);
        return;
    }

    const int lettersSize = 11; // big enough for two 5-digit sequences plus a quote mark between
    UChar letters[lettersSize];

    int length;
    if (number < 1000)
        length = 0;
    else {
        length = toHebrewUnder1000(number / 1000, letters);
        letters[length++] = '\'';
        number = number % 1000;
    }
    length += toHebrewUnder1000(number, letters + length);

    ASSERT(length <= lettersSize);
    builder.append(letters, length);
}

static NEVER_INLINE int toArmenianUnder10000(int number, bool upper, bool addCircumflex, UChar letters[9])
{
    ASSERT(number >= 0 && number < 10000);
    int length = 0;

    int lowerOffset = upper ? 0 : 0x0030;

    if (int thousands = number / 1000) {
        if (thousands == 7) {
            letters[length++] = 0x0552 + lowerOffset;
            if (addCircumflex)
                letters[length++] = 0x0302;
        } else {
            letters[length++] = (0x054C - 1 + lowerOffset) + thousands;
            if (addCircumflex)
                letters[length++] = 0x0302;
        }
    }

    if (int hundreds = (number / 100) % 10) {
        letters[length++] = (0x0543 - 1 + lowerOffset) + hundreds;
        if (addCircumflex)
            letters[length++] = 0x0302;
    }

    if (int tens = (number / 10) % 10) {
        letters[length++] = (0x053A - 1 + lowerOffset) + tens;
        if (addCircumflex)
            letters[length++] = 0x0302;
    }

    if (int ones = number % 10) {
        letters[length++] = (0x531 - 1 + lowerOffset) + ones;
        if (addCircumflex)
            letters[length++] = 0x0302;
    }

    return length;
}

static NEVER_INLINE void toArmenian(StringBuilder& builder, int number, bool upper)
{
    ASSERT(number >= 1 && number <= 99999999);

    const int lettersSize = 18; // twice what toArmenianUnder10000 needs
    UChar letters[lettersSize];

    int length = toArmenianUnder10000(number / 10000, upper, true, letters);
    length += toArmenianUnder10000(number % 10000, upper, false, letters + length);

    ASSERT(length <= lettersSize);
    builder.append(letters, length);
}

static NEVER_INLINE void toGeorgian(StringBuilder& builder, int number)
{
    ASSERT(number >= 1 && number <= 19999);

    const int lettersSize = 5;
    UChar letters[lettersSize];

    int length = 0;

    if (number > 9999)
        letters[length++] = 0x10F5;

    if (int thousands = (number / 1000) % 10) {
        static const UChar georgianThousands[9] = {
            0x10E9, 0x10EA, 0x10EB, 0x10EC, 0x10ED, 0x10EE, 0x10F4, 0x10EF, 0x10F0
        };
        letters[length++] = georgianThousands[thousands - 1];
    }

    if (int hundreds = (number / 100) % 10) {
        static const UChar georgianHundreds[9] = {
            0x10E0, 0x10E1, 0x10E2, 0x10F3, 0x10E4, 0x10E5, 0x10E6, 0x10E7, 0x10E8
        };
        letters[length++] = georgianHundreds[hundreds - 1];
    }

    if (int tens = (number / 10) % 10) {
        static const UChar georgianTens[9] = {
            0x10D8, 0x10D9, 0x10DA, 0x10DB, 0x10DC, 0x10F2, 0x10DD, 0x10DE, 0x10DF
        };
        letters[length++] = georgianTens[tens - 1];
    }

    if (int ones = number % 10) {
        static const UChar georgianOnes[9] = {
            0x10D0, 0x10D1, 0x10D2, 0x10D3, 0x10D4, 0x10D5, 0x10D6, 0x10F1, 0x10D7
        };
        letters[length++] = georgianOnes[ones - 1];
    }

    ASSERT(length <= lettersSize);
    builder.append(letters, length);
}

// The table uses the order from the CSS3 specification:
// first 3 group markers, then 3 digit markers, then ten digits.
static NEVER_INLINE void toCJKIdeographic(StringBuilder& builder, int number, const UChar table[16])
{
    ASSERT(number >= 0);

    enum AbstractCJKChar {
        noChar,
        secondGroupMarker, thirdGroupMarker, fourthGroupMarker,
        secondDigitMarker, thirdDigitMarker, fourthDigitMarker,
        digit0, digit1, digit2, digit3, digit4,
        digit5, digit6, digit7, digit8, digit9
    };

    if (number == 0) {
        builder.append(table[digit0 - 1]);
        return;
    }

    const int groupLength = 8; // 4 digits, 3 digit markers, and a group marker
    const int bufferLength = 4 * groupLength;
    AbstractCJKChar buffer[bufferLength] = { noChar };

    for (int i = 0; i < 4; ++i) {
        int groupValue = number % 10000;
        number /= 10000;

        // Process least-significant group first, but put it in the buffer last.
        AbstractCJKChar* group = &buffer[(3 - i) * groupLength];

        if (groupValue && i)
            group[7] = static_cast<AbstractCJKChar>(secondGroupMarker - 1 + i);

        // Put in the four digits and digit markers for any non-zero digits.
        group[6] = static_cast<AbstractCJKChar>(digit0 + (groupValue % 10));
        if (number != 0 || groupValue > 9) {
            int digitValue = ((groupValue / 10) % 10);
            group[4] = static_cast<AbstractCJKChar>(digit0 + digitValue);
            if (digitValue)
                group[5] = secondDigitMarker;
        }
        if (number != 0 || groupValue > 99) {
            int digitValue = ((groupValue / 100) % 10);
            group[2] = static_cast<AbstractCJKChar>(digit0 + digitValue);
            if (digitValue)
                group[3] = thirdDigitMarker;
        }
        if (number != 0 || groupValue > 999) {
            int digitValue = groupValue / 1000;
            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;

    builder.append(characters, length);
}

static EListStyleType effectiveListMarkerType(EListStyleType type, int value)
{
    // Note, the following switch statement has been explicitly grouped
    // by list-style-type ordinal range.
    switch (type) {
    case ArabicIndic:
    case Bengali:
    case BinaryListStyle:
    case Cambodian:
    case Circle:
    case DecimalLeadingZero:
    case DecimalListStyle:
    case Devanagari:
    case Disc:
    case Gujarati:
    case Gurmukhi:
    case Kannada:
    case Khmer:
    case Lao:
    case LowerHexadecimal:
    case Malayalam:
    case Mongolian:
    case Myanmar:
    case NoneListStyle:
    case Octal:
    case Oriya:
    case Persian:
    case Square:
    case Telugu:
    case Thai:
    case Tibetan:
    case UpperHexadecimal:
    case Urdu:
        return type; // Can represent all ordinals.
    case Armenian:
        return (value < 1 || value > 99999999) ? DecimalListStyle : type;
    case CJKIdeographic:
        return (value < 0) ? DecimalListStyle : type;
    case Georgian:
        return (value < 1 || value > 19999) ? DecimalListStyle : type;
    case Hebrew:
        return (value < 0 || value > 999999) ? DecimalListStyle : type;
    case LowerRoman:
    case UpperRoman:
        return (value < 1 || value > 3999) ? DecimalListStyle : type;
    case Afar:
    case Amharic:
    case AmharicAbegede:
    case Asterisks:
    case CjkEarthlyBranch:
    case CjkHeavenlyStem:
    case Ethiopic:
    case EthiopicAbegede:
    case EthiopicAbegedeAmEt:
    case EthiopicAbegedeGez:
    case EthiopicAbegedeTiEr:
    case EthiopicAbegedeTiEt:
    case EthiopicHalehameAaEr:
    case EthiopicHalehameAaEt:
    case EthiopicHalehameAmEt:
    case EthiopicHalehameGez:
    case EthiopicHalehameOmEt:
    case EthiopicHalehameSidEt:
    case EthiopicHalehameSoEt:
    case EthiopicHalehameTiEr:
    case EthiopicHalehameTiEt:
    case EthiopicHalehameTig:
    case Footnotes:
    case Hangul:
    case HangulConsonant:
    case Hiragana:
    case HiraganaIroha:
    case Katakana:
    case KatakanaIroha:
    case LowerAlpha:
    case LowerArmenian:
    case LowerGreek:
    case LowerLatin:
    case LowerNorwegian:
    case Oromo:
    case Sidama:
    case Somali:
    case Tigre:
    case TigrinyaEr:
    case TigrinyaErAbegede:
    case TigrinyaEt:
    case TigrinyaEtAbegede:
    case UpperAlpha:
    case UpperArmenian:
    case UpperGreek:
    case UpperLatin:
    case UpperNorwegian:
        return (value < 1) ? DecimalListStyle : type;
    }

    ASSERT_NOT_REACHED();
    return type;
}

static UChar listMarkerSuffix(EListStyleType type, int value)
{
    // If the list-style-type cannot represent |value| because it's outside its
    // ordinal range then we fall back to some list style that can represent |value|.
    EListStyleType effectiveType = effectiveListMarkerType(type, value);

    // Note, the following switch statement has been explicitly
    // grouped by list-style-type suffix.
    switch (effectiveType) {
    case Asterisks:
    case Circle:
    case Disc:
    case Footnotes:
    case NoneListStyle:
    case Square:
        return ' ';
    case Afar:
    case Amharic:
    case AmharicAbegede:
    case Ethiopic:
    case EthiopicAbegede:
    case EthiopicAbegedeAmEt:
    case EthiopicAbegedeGez:
    case EthiopicAbegedeTiEr:
    case EthiopicAbegedeTiEt:
    case EthiopicHalehameAaEr:
    case EthiopicHalehameAaEt:
    case EthiopicHalehameAmEt:
    case EthiopicHalehameGez:
    case EthiopicHalehameOmEt:
    case EthiopicHalehameSidEt:
    case EthiopicHalehameSoEt:
    case EthiopicHalehameTiEr:
    case EthiopicHalehameTiEt:
    case EthiopicHalehameTig:
    case Oromo:
    case Sidama:
    case Somali:
    case Tigre:
    case TigrinyaEr:
    case TigrinyaErAbegede:
    case TigrinyaEt:
    case TigrinyaEtAbegede:
        return ethiopicPrefaceColon;
    case Armenian:
    case ArabicIndic:
    case Bengali:
    case BinaryListStyle:
    case Cambodian:
    case CJKIdeographic:
    case CjkEarthlyBranch:
    case CjkHeavenlyStem:
    case DecimalLeadingZero:
    case DecimalListStyle:
    case Devanagari:
    case Georgian:
    case Gujarati:
    case Gurmukhi:
    case Hangul:
    case HangulConsonant:
    case Hebrew:
    case Hiragana:
    case HiraganaIroha:
    case Kannada:
    case Katakana:
    case KatakanaIroha:
    case Khmer:
    case Lao:
    case LowerAlpha:
    case LowerArmenian:
    case LowerGreek:
    case LowerHexadecimal:
    case LowerLatin:
    case LowerNorwegian:
    case LowerRoman:
    case Malayalam:
    case Mongolian:
    case Myanmar:
    case Octal:
    case Oriya:
    case Persian:
    case Telugu:
    case Thai:
    case Tibetan:
    case UpperAlpha:
    case UpperArmenian:
    case UpperGreek:
    case UpperHexadecimal:
    case UpperLatin:
    case UpperNorwegian:
    case UpperRoman:
    case Urdu:
        return '.';
    }

    ASSERT_NOT_REACHED();
    return '.';
}

String listMarkerText(EListStyleType type, int value)
{
    StringBuilder builder;

    // If the list-style-type, say hebrew, cannot represent |value| because it's outside
    // its ordinal range then we fallback to some list style that can represent |value|.
    switch (effectiveListMarkerType(type, value)) {
        case NoneListStyle:
            return emptyString();

        case Asterisks: {
            static const LChar asterisksSymbols[1] = { 0x2A };
            toSymbolic(builder, value, asterisksSymbols);
            break;
        }
        // We use the same characters for text security.
        // See RenderText::setInternalString.
        case Circle:
            builder.append(whiteBullet);
            break;
        case Disc:
            builder.append(bullet);
            break;
        case Footnotes: {
            static const UChar footnotesSymbols[4] = { 0x002A, 0x2051, 0x2020, 0x2021 };
            toSymbolic(builder, value, footnotesSymbols);
            break;
        }
        case Square:
            // The CSS 2.1 test suite uses U+25EE BLACK MEDIUM SMALL SQUARE
            // instead, but I think this looks better.
            builder.append(blackSquare);
            break;

        case DecimalListStyle:
            builder.appendNumber(value);
            break;

        case DecimalLeadingZero:
            if (value < -9 || value > 9) {
                builder.appendNumber(value);
                break;
            }
            if (value < 0) {
                builder.appendLiteral("-0");
                builder.appendNumber(-value); // -01 to -09
                break;
            }
            builder.append('0');
            builder.appendNumber(value); // 00 to 09
            break;

        case ArabicIndic: {
            static const UChar arabicIndicNumerals[10] = {
                0x0660, 0x0661, 0x0662, 0x0663, 0x0664, 0x0665, 0x0666, 0x0667, 0x0668, 0x0669
            };
            toNumeric(builder, value, arabicIndicNumerals);
            break;
        }

        case BinaryListStyle: {
            static const LChar binaryNumerals[2] = { '0', '1' };
            toNumeric(builder, value, binaryNumerals);
            break;
        }

        case Bengali: {
            static const UChar bengaliNumerals[10] = {
                0x09E6, 0x09E7, 0x09E8, 0x09E9, 0x09EA, 0x09EB, 0x09EC, 0x09ED, 0x09EE, 0x09EF
            };
            toNumeric(builder, value, bengaliNumerals);
            break;
        }

        case Cambodian:
        case Khmer: {
            static const UChar khmerNumerals[10] = {
                0x17E0, 0x17E1, 0x17E2, 0x17E3, 0x17E4, 0x17E5, 0x17E6, 0x17E7, 0x17E8, 0x17E9
            };
            toNumeric(builder, value, khmerNumerals);
            break;
        }
        case Devanagari: {
            static const UChar devanagariNumerals[10] = {
                0x0966, 0x0967, 0x0968, 0x0969, 0x096A, 0x096B, 0x096C, 0x096D, 0x096E, 0x096F
            };
            toNumeric(builder, value, devanagariNumerals);
            break;
        }
        case Gujarati: {
            static const UChar gujaratiNumerals[10] = {
                0x0AE6, 0x0AE7, 0x0AE8, 0x0AE9, 0x0AEA, 0x0AEB, 0x0AEC, 0x0AED, 0x0AEE, 0x0AEF
            };
            toNumeric(builder, value, gujaratiNumerals);
            break;
        }
        case Gurmukhi: {
            static const UChar gurmukhiNumerals[10] = {
                0x0A66, 0x0A67, 0x0A68, 0x0A69, 0x0A6A, 0x0A6B, 0x0A6C, 0x0A6D, 0x0A6E, 0x0A6F
            };
            toNumeric(builder, value, gurmukhiNumerals);
            break;
        }
        case Kannada: {
            static const UChar kannadaNumerals[10] = {
                0x0CE6, 0x0CE7, 0x0CE8, 0x0CE9, 0x0CEA, 0x0CEB, 0x0CEC, 0x0CED, 0x0CEE, 0x0CEF
            };
            toNumeric(builder, value, kannadaNumerals);
            break;
        }
        case LowerHexadecimal: {
            static const LChar lowerHexadecimalNumerals[16] = {
                '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f'
            };
            toNumeric(builder, value, lowerHexadecimalNumerals);
            break;
        }
        case Lao: {
            static const UChar laoNumerals[10] = {
                0x0ED0, 0x0ED1, 0x0ED2, 0x0ED3, 0x0ED4, 0x0ED5, 0x0ED6, 0x0ED7, 0x0ED8, 0x0ED9
            };
            toNumeric(builder, value, laoNumerals);
            break;
        }
        case Malayalam: {
            static const UChar malayalamNumerals[10] = {
                0x0D66, 0x0D67, 0x0D68, 0x0D69, 0x0D6A, 0x0D6B, 0x0D6C, 0x0D6D, 0x0D6E, 0x0D6F
            };
            toNumeric(builder, value, malayalamNumerals);
            break;
        }
        case Mongolian: {
            static const UChar mongolianNumerals[10] = {
                0x1810, 0x1811, 0x1812, 0x1813, 0x1814, 0x1815, 0x1816, 0x1817, 0x1818, 0x1819
            };
            toNumeric(builder, value, mongolianNumerals);
            break;
        }
        case Myanmar: {
            static const UChar myanmarNumerals[10] = {
                0x1040, 0x1041, 0x1042, 0x1043, 0x1044, 0x1045, 0x1046, 0x1047, 0x1048, 0x1049
            };
            toNumeric(builder, value, myanmarNumerals);
            break;
        }
        case Octal: {
            static const LChar octalNumerals[8] = {
                '0', '1', '2', '3', '4', '5', '6', '7'
            };
            toNumeric(builder, value, octalNumerals);
            break;
        }
        case Oriya: {
            static const UChar oriyaNumerals[10] = {
                0x0B66, 0x0B67, 0x0B68, 0x0B69, 0x0B6A, 0x0B6B, 0x0B6C, 0x0B6D, 0x0B6E, 0x0B6F
            };
            toNumeric(builder, value, oriyaNumerals);
            break;
        }
        case Persian:
        case Urdu: {
            static const UChar urduNumerals[10] = {
                0x06F0, 0x06F1, 0x06F2, 0x06F3, 0x06F4, 0x06F5, 0x06F6, 0x06F7, 0x06F8, 0x06F9
            };
            toNumeric(builder, value, urduNumerals);
            break;
        }
        case Telugu: {
            static const UChar teluguNumerals[10] = {
                0x0C66, 0x0C67, 0x0C68, 0x0C69, 0x0C6A, 0x0C6B, 0x0C6C, 0x0C6D, 0x0C6E, 0x0C6F
            };
            toNumeric(builder, value, teluguNumerals);
            break;
        }
        case Tibetan: {
            static const UChar tibetanNumerals[10] = {
                0x0F20, 0x0F21, 0x0F22, 0x0F23, 0x0F24, 0x0F25, 0x0F26, 0x0F27, 0x0F28, 0x0F29
            };
            toNumeric(builder, value, tibetanNumerals);
            break;
        }
        case Thai: {
            static const UChar thaiNumerals[10] = {
                0x0E50, 0x0E51, 0x0E52, 0x0E53, 0x0E54, 0x0E55, 0x0E56, 0x0E57, 0x0E58, 0x0E59
            };
            toNumeric(builder, value, thaiNumerals);
            break;
        }
        case UpperHexadecimal: {
            static const LChar upperHexadecimalNumerals[16] = {
                '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'A', 'B', 'C', 'D', 'E', 'F'
            };
            toNumeric(builder, value, upperHexadecimalNumerals);
            break;
        }

        case LowerAlpha:
        case LowerLatin: {
            static const LChar 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'
            };
            toAlphabetic(builder, value, lowerLatinAlphabet);
            break;
        }
        case UpperAlpha:
        case UpperLatin: {
            static const LChar 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'
            };
            toAlphabetic(builder, value, upperLatinAlphabet);
            break;
        }
        case LowerGreek: {
            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
            };
            toAlphabetic(builder, value, lowerGreekAlphabet);
            break;
        }

        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
            };
            toAlphabetic(builder, value, hiraganaAlphabet);
            break;
        }
        case HiraganaIroha: {
            // 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
            };
            toAlphabetic(builder, value, hiraganaIrohaAlphabet);
            break;
        }
        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
            };
            toAlphabetic(builder, value, katakanaAlphabet);
            break;
        }
        case KatakanaIroha: {
            // 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
            };
            toAlphabetic(builder, value, katakanaIrohaAlphabet);
            break;
        }

        case Afar:
        case EthiopicHalehameAaEt:
        case EthiopicHalehameAaEr: {
            static const UChar ethiopicHalehameAaErAlphabet[18] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230, 0x1260, 0x1270, 0x1290,
                0x12A0, 0x12A8, 0x12C8, 0x12D0, 0x12E8, 0x12F0, 0x1308, 0x1338, 0x1348
            };
            toAlphabetic(builder, value, ethiopicHalehameAaErAlphabet);
            break;
        }
        case Amharic:
        case EthiopicHalehameAmEt: {
            static const UChar ethiopicHalehameAmEtAlphabet[33] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228, 0x1230, 0x1238, 0x1240,
                0x1260, 0x1270, 0x1278, 0x1280, 0x1290, 0x1298, 0x12A0, 0x12A8, 0x12B8,
                0x12C8, 0x12D0, 0x12D8, 0x12E0, 0x12E8, 0x12F0, 0x1300, 0x1308, 0x1320,
                0x1328, 0x1330, 0x1338, 0x1340, 0x1348, 0x1350
            };
            toAlphabetic(builder, value, ethiopicHalehameAmEtAlphabet);
            break;
        }
        case AmharicAbegede:
        case EthiopicAbegedeAmEt: {
            static const UChar ethiopicAbegedeAmEtAlphabet[33] = {
                0x12A0, 0x1260, 0x1308, 0x12F0, 0x1300, 0x1200, 0x12C8, 0x12D8, 0x12E0,
                0x1210, 0x1320, 0x1328, 0x12E8, 0x12A8, 0x12B8, 0x1208, 0x1218, 0x1290,
                0x1298, 0x1220, 0x12D0, 0x1348, 0x1338, 0x1240, 0x1228, 0x1230, 0x1238,
                0x1270, 0x1278, 0x1280, 0x1340, 0x1330, 0x1350
            };
            toAlphabetic(builder, value, ethiopicAbegedeAmEtAlphabet);
            break;
        }
        case CjkEarthlyBranch: {
            static const UChar cjkEarthlyBranchAlphabet[12] = {
                0x5B50, 0x4E11, 0x5BC5, 0x536F, 0x8FB0, 0x5DF3, 0x5348, 0x672A, 0x7533,
                0x9149, 0x620C, 0x4EA5
            };
            toAlphabetic(builder, value, cjkEarthlyBranchAlphabet);
            break;
        }
        case CjkHeavenlyStem: {
            static const UChar cjkHeavenlyStemAlphabet[10] = {
                0x7532, 0x4E59, 0x4E19, 0x4E01, 0x620A, 0x5DF1, 0x5E9A, 0x8F9B, 0x58EC,
                0x7678
            };
            toAlphabetic(builder, value, cjkHeavenlyStemAlphabet);
            break;
        }
        case Ethiopic:
        case EthiopicHalehameGez: {
            static const UChar ethiopicHalehameGezAlphabet[26] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228, 0x1230, 0x1240, 0x1260,
                0x1270, 0x1280, 0x1290, 0x12A0, 0x12A8, 0x12C8, 0x12D0, 0x12D8, 0x12E8,
                0x12F0, 0x1308, 0x1320, 0x1330, 0x1338, 0x1340, 0x1348, 0x1350
            };
            toAlphabetic(builder, value, ethiopicHalehameGezAlphabet);
            break;
        }
        case EthiopicAbegede:
        case EthiopicAbegedeGez: {
            static const UChar ethiopicAbegedeGezAlphabet[26] = {
                0x12A0, 0x1260, 0x1308, 0x12F0, 0x1200, 0x12C8, 0x12D8, 0x1210, 0x1320,
                0x12E8, 0x12A8, 0x1208, 0x1218, 0x1290, 0x1220, 0x12D0, 0x1348, 0x1338,
                0x1240, 0x1228, 0x1230, 0x1270, 0x1280, 0x1340, 0x1330, 0x1350
            };
            toAlphabetic(builder, value, ethiopicAbegedeGezAlphabet);
            break;
        }
        case HangulConsonant: {
            static const UChar hangulConsonantAlphabet[14] = {
                0x3131, 0x3134, 0x3137, 0x3139, 0x3141, 0x3142, 0x3145, 0x3147, 0x3148,
                0x314A, 0x314B, 0x314C, 0x314D, 0x314E
            };
            toAlphabetic(builder, value, hangulConsonantAlphabet);
            break;
        }
        case Hangul: {
            static const UChar hangulAlphabet[14] = {
                0xAC00, 0xB098, 0xB2E4, 0xB77C, 0xB9C8, 0xBC14, 0xC0AC, 0xC544, 0xC790,
                0xCC28, 0xCE74, 0xD0C0, 0xD30C, 0xD558
            };
            toAlphabetic(builder, value, hangulAlphabet);
            break;
        }
        case Oromo:
        case EthiopicHalehameOmEt: {
            static const UChar ethiopicHalehameOmEtAlphabet[25] = {
                0x1200, 0x1208, 0x1218, 0x1228, 0x1230, 0x1238, 0x1240, 0x1260, 0x1270,
                0x1278, 0x1290, 0x1298, 0x12A0, 0x12A8, 0x12C8, 0x12E8, 0x12F0, 0x12F8,
                0x1300, 0x1308, 0x1320, 0x1328, 0x1338, 0x1330, 0x1348
            };
            toAlphabetic(builder, value, ethiopicHalehameOmEtAlphabet);
            break;
        }
        case Sidama:
        case EthiopicHalehameSidEt: {
            static const UChar ethiopicHalehameSidEtAlphabet[26] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230, 0x1238, 0x1240, 0x1260,
                0x1270, 0x1278, 0x1290, 0x1298, 0x12A0, 0x12A8, 0x12C8, 0x12E8, 0x12F0,
                0x12F8, 0x1300, 0x1308, 0x1320, 0x1328, 0x1338, 0x1330, 0x1348
            };
            toAlphabetic(builder, value, ethiopicHalehameSidEtAlphabet);
            break;
        }
        case Somali:
        case EthiopicHalehameSoEt: {
            static const UChar ethiopicHalehameSoEtAlphabet[22] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230, 0x1238, 0x1240, 0x1260,
                0x1270, 0x1290, 0x12A0, 0x12A8, 0x12B8, 0x12C8, 0x12D0, 0x12E8, 0x12F0,
                0x1300, 0x1308, 0x1338, 0x1348
            };
            toAlphabetic(builder, value, ethiopicHalehameSoEtAlphabet);
            break;
        }
        case Tigre:
        case EthiopicHalehameTig: {
            static const UChar ethiopicHalehameTigAlphabet[27] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230, 0x1238, 0x1240, 0x1260,
                0x1270, 0x1278, 0x1290, 0x12A0, 0x12A8, 0x12C8, 0x12D0, 0x12D8, 0x12E8,
                0x12F0, 0x1300, 0x1308, 0x1320, 0x1328, 0x1338, 0x1330, 0x1348, 0x1350
            };
            toAlphabetic(builder, value, ethiopicHalehameTigAlphabet);
            break;
        }
        case TigrinyaEr:
        case EthiopicHalehameTiEr: {
            static const UChar ethiopicHalehameTiErAlphabet[31] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1228, 0x1230, 0x1238, 0x1240, 0x1250,
                0x1260, 0x1270, 0x1278, 0x1290, 0x1298, 0x12A0, 0x12A8, 0x12B8, 0x12C8,
                0x12D0, 0x12D8, 0x12E0, 0x12E8, 0x12F0, 0x1300, 0x1308, 0x1320, 0x1328,
                0x1330, 0x1338, 0x1348, 0x1350
            };
            toAlphabetic(builder, value, ethiopicHalehameTiErAlphabet);
            break;
        }
        case TigrinyaErAbegede:
        case EthiopicAbegedeTiEr: {
            static const UChar ethiopicAbegedeTiErAlphabet[31] = {
                0x12A0, 0x1260, 0x1308, 0x12F0, 0x1300, 0x1200, 0x12C8, 0x12D8, 0x12E0,
                0x1210, 0x1320, 0x1328, 0x12E8, 0x12A8, 0x12B8, 0x1208, 0x1218, 0x1290,
                0x1298, 0x12D0, 0x1348, 0x1338, 0x1240, 0x1250, 0x1228, 0x1230, 0x1238,
                0x1270, 0x1278, 0x1330, 0x1350
            };
            toAlphabetic(builder, value, ethiopicAbegedeTiErAlphabet);
            break;
        }
        case TigrinyaEt:
        case EthiopicHalehameTiEt: {
            static const UChar ethiopicHalehameTiEtAlphabet[34] = {
                0x1200, 0x1208, 0x1210, 0x1218, 0x1220, 0x1228, 0x1230, 0x1238, 0x1240,
                0x1250, 0x1260, 0x1270, 0x1278, 0x1280, 0x1290, 0x1298, 0x12A0, 0x12A8,
                0x12B8, 0x12C8, 0x12D0, 0x12D8, 0x12E0, 0x12E8, 0x12F0, 0x1300, 0x1308,
                0x1320, 0x1328, 0x1330, 0x1338, 0x1340, 0x1348, 0x1350
            };
            toAlphabetic(builder, value, ethiopicHalehameTiEtAlphabet);
            break;
        }
        case TigrinyaEtAbegede:
        case EthiopicAbegedeTiEt: {
            static const UChar ethiopicAbegedeTiEtAlphabet[34] = {
                0x12A0, 0x1260, 0x1308, 0x12F0, 0x1300, 0x1200, 0x12C8, 0x12D8, 0x12E0,
                0x1210, 0x1320, 0x1328, 0x12E8, 0x12A8, 0x12B8, 0x1208, 0x1218, 0x1290,
                0x1298, 0x1220, 0x12D0, 0x1348, 0x1338, 0x1240, 0x1250, 0x1228, 0x1230,
                0x1238, 0x1270, 0x1278, 0x1280, 0x1340, 0x1330, 0x1350
            };
            toAlphabetic(builder, value, ethiopicAbegedeTiEtAlphabet);
            break;
        }
        case UpperGreek: {
            static const UChar upperGreekAlphabet[24] = {
                0x0391, 0x0392, 0x0393, 0x0394, 0x0395, 0x0396, 0x0397, 0x0398, 0x0399,
                0x039A, 0x039B, 0x039C, 0x039D, 0x039E, 0x039F, 0x03A0, 0x03A1, 0x03A3,
                0x03A4, 0x03A5, 0x03A6, 0x03A7, 0x03A8, 0x03A9
            };
            toAlphabetic(builder, value, upperGreekAlphabet);
            break;
        }
        case LowerNorwegian: {
            static const LChar lowerNorwegianAlphabet[29] = {
                0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68, 0x69,
                0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70, 0x71, 0x72,
                0x73, 0x74, 0x75, 0x76, 0x77, 0x78, 0x79, 0x7A, 0xE6,
                0xF8, 0xE5
            };
            toAlphabetic(builder, value, lowerNorwegianAlphabet);
            break;
        }
        case UpperNorwegian: {
            static const LChar upperNorwegianAlphabet[29] = {
                0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48, 0x49,
                0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50, 0x51, 0x52,
                0x53, 0x54, 0x55, 0x56, 0x57, 0x58, 0x59, 0x5A, 0xC6,
                0xD8, 0xC5
            };
            toAlphabetic(builder, value, upperNorwegianAlphabet);
            break;
        }
        case CJKIdeographic: {
            static const UChar traditionalChineseInformalTable[16] = {
                0x842C, 0x5104, 0x5146,
                0x5341, 0x767E, 0x5343,
                0x96F6, 0x4E00, 0x4E8C, 0x4E09, 0x56DB,
                0x4E94, 0x516D, 0x4E03, 0x516B, 0x4E5D
            };
            toCJKIdeographic(builder, value, traditionalChineseInformalTable);
            break;
        }

        case LowerRoman:
            toRoman(builder, value, false);
            break;
        case UpperRoman:
            toRoman(builder, value, true);
            break;

        case Armenian:
        case UpperArmenian:
            // 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.
            toArmenian(builder, value, true);
            break;
        case LowerArmenian:
            toArmenian(builder, value, false);
            break;
        case Georgian:
            toGeorgian(builder, value);
            break;
        case Hebrew:
            toHebrew(builder, value);
            break;
    }

    return builder.toString();
}

RenderListMarker::RenderListMarker(RenderListItem& listItem, Ref<RenderStyle>&& style)
    : RenderBox(listItem.document(), WTF::move(style), 0)
    , m_listItem(listItem)
{
    // init RenderObject attributes
    setInline(true);   // our object is Inline
    setReplaced(true); // pretend to be replaced
}

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

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

    if (oldStyle && (style().listStylePosition() != oldStyle->listStylePosition() || style().listStyleType() != oldStyle->listStyleType()))
        setNeedsLayoutAndPrefWidthsRecalc();

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

std::unique_ptr<InlineElementBox> RenderListMarker::createInlineBox()
{
    auto box = RenderBox::createInlineBox();
    box->setBehavesLikeText(isText());
    return box;
}

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

LayoutRect RenderListMarker::localSelectionRect()
{
    InlineBox* box = inlineBoxWrapper();
    if (!box)
        return LayoutRect(LayoutPoint(), size());
    const RootInlineBox& rootBox = m_inlineBoxWrapper->root();
    LayoutUnit newLogicalTop = rootBox.blockFlow().style().isFlippedBlocksWritingMode() ? m_inlineBoxWrapper->logicalBottom() - rootBox.selectionBottom() : rootBox.selectionTop() - m_inlineBoxWrapper->logicalTop();
    if (rootBox.blockFlow().style().isHorizontalWritingMode())
        return LayoutRect(0, newLogicalTop, width(), rootBox.selectionHeight());
    return LayoutRect(newLogicalTop, 0, rootBox.selectionHeight(), height());
}

void RenderListMarker::paint(PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
    if (paintInfo.phase != PaintPhaseForeground)
        return;
    
    if (style().visibility() != VISIBLE)
        return;

    LayoutPoint boxOrigin(paintOffset + location());
    LayoutRect overflowRect(visualOverflowRect());
    overflowRect.moveBy(boxOrigin);
    overflowRect.inflate(maximalOutlineSize(paintInfo.phase));

    if (!paintInfo.rect.intersects(overflowRect))
        return;

    LayoutRect box(boxOrigin, size());
    
    FloatRect marker = getRelativeMarkerRect();
    marker.moveBy(boxOrigin);

    GraphicsContext* context = paintInfo.context;

    if (isImage()) {
        context->drawImage(m_image->image(this, marker.size()).get(), style().colorSpace(), marker);
        if (selectionState() != SelectionNone) {
            LayoutRect selRect = localSelectionRect();
            selRect.moveBy(boxOrigin);
            context->fillRect(snappedIntRect(selRect), m_listItem.selectionBackgroundColor(), style().colorSpace());
        }
        return;
    }

    if (selectionState() != SelectionNone) {
        LayoutRect selRect = localSelectionRect();
        selRect.moveBy(boxOrigin);
        context->fillRect(snappedIntRect(selRect), m_listItem.selectionBackgroundColor(), style().colorSpace());
    }

    const Color color(style().visitedDependentColor(CSSPropertyColor));
    context->setStrokeColor(color, style().colorSpace());
    context->setStrokeStyle(SolidStroke);
    context->setStrokeThickness(1.0f);
    context->setFillColor(color, style().colorSpace());

    EListStyleType type = style().listStyleType();
    switch (type) {
        case Disc:
            context->drawEllipse(marker);
            return;
        case Circle:
            context->setFillColor(Color::transparent, ColorSpaceDeviceRGB);
            context->drawEllipse(marker);
            return;
        case Square:
            context->drawRect(marker);
            return;
        case NoneListStyle:
            return;
        case Afar:
        case Amharic:
        case AmharicAbegede:
        case ArabicIndic:
        case Armenian:
        case BinaryListStyle:
        case Bengali:
        case Cambodian:
        case CJKIdeographic:
        case CjkEarthlyBranch:
        case CjkHeavenlyStem:
        case DecimalLeadingZero:
        case DecimalListStyle:
        case Devanagari:
        case Ethiopic:
        case EthiopicAbegede:
        case EthiopicAbegedeAmEt:
        case EthiopicAbegedeGez:
        case EthiopicAbegedeTiEr:
        case EthiopicAbegedeTiEt:
        case EthiopicHalehameAaEr:
        case EthiopicHalehameAaEt:
        case EthiopicHalehameAmEt:
        case EthiopicHalehameGez:
        case EthiopicHalehameOmEt:
        case EthiopicHalehameSidEt:
        case EthiopicHalehameSoEt:
        case EthiopicHalehameTiEr:
        case EthiopicHalehameTiEt:
        case EthiopicHalehameTig:
        case Georgian:
        case Gujarati:
        case Gurmukhi:
        case Hangul:
        case HangulConsonant:
        case Hebrew:
        case Hiragana:
        case HiraganaIroha:
        case Kannada:
        case Katakana:
        case KatakanaIroha:
        case Khmer:
        case Lao:
        case LowerAlpha:
        case LowerArmenian:
        case LowerGreek:
        case LowerHexadecimal:
        case LowerLatin:
        case LowerNorwegian:
        case LowerRoman:
        case Malayalam:
        case Mongolian:
        case Myanmar:
        case Octal:
        case Oriya:
        case Oromo:
        case Persian:
        case Sidama:
        case Somali:
        case Telugu:
        case Thai:
        case Tibetan:
        case Tigre:
        case TigrinyaEr:
        case TigrinyaErAbegede:
        case TigrinyaEt:
        case TigrinyaEtAbegede:
        case UpperAlpha:
        case UpperArmenian:
        case UpperGreek:
        case UpperHexadecimal:
        case UpperLatin:
        case UpperNorwegian:
        case UpperRoman:
        case Urdu:
        case Asterisks:
        case Footnotes:
            break;
    }
    if (m_text.isEmpty())
        return;

    const FontCascade& font = style().fontCascade();
    TextRun textRun = RenderBlock::constructTextRun(this, font, m_text, style());

    GraphicsContextStateSaver stateSaver(*context, false);
    if (!style().isHorizontalWritingMode()) {
        marker.moveBy(-boxOrigin);
        marker = marker.transposedRect();
        marker.moveBy(FloatPoint(box.x(), box.y() - logicalHeight()));
        stateSaver.save();
        context->translate(marker.x(), marker.maxY());
        context->rotate(static_cast<float>(deg2rad(90.)));
        context->translate(-marker.x(), -marker.maxY());
    }

    FloatPoint textOrigin = FloatPoint(marker.x(), marker.y() + style().fontMetrics().ascent());
    textOrigin = roundPointToDevicePixels(LayoutPoint(textOrigin), document().deviceScaleFactor(), style().isLeftToRightDirection());

    if (type == Asterisks || type == Footnotes)
        context->drawText(font, textRun, textOrigin);
    else {
        const UChar suffix = listMarkerSuffix(type, m_listItem.value());

        // Text is not arbitrary. We can judge whether it's RTL from the first character,
        // and we only need to handle the direction U_RIGHT_TO_LEFT for now.
        bool textNeedsReversing = u_charDirection(m_text[0]) == U_RIGHT_TO_LEFT;
        String toDraw;
        if (textNeedsReversing) {
            unsigned length = m_text.length();
            StringBuilder buffer;
            buffer.reserveCapacity(length + 2);
            if (!style().isLeftToRightDirection()) {
                buffer.append(space);
                buffer.append(suffix);
            }
            for (unsigned i = 0; i < length; ++i)
                buffer.append(m_text[length - i - 1]);
            if (style().isLeftToRightDirection()) {
                buffer.append(suffix);
                buffer.append(space);
            }
            toDraw = buffer.toString();
        } else {
            if (style().isLeftToRightDirection())
                toDraw = m_text + String(&suffix, 1) + String(&space, 1);
            else
                toDraw = String(&space, 1) + String(&suffix, 1) + m_text;
        }
        textRun.setText(StringView(toDraw));

        context->drawText(font, textRun, textOrigin);
    }
}

void RenderListMarker::layout()
{
    StackStats::LayoutCheckPoint layoutCheckPoint;
    ASSERT(needsLayout());
 
    if (isImage()) {
        updateMarginsAndContent();
        setWidth(m_image->imageSize(this, style().effectiveZoom()).width());
        setHeight(m_image->imageSize(this, style().effectiveZoom()).height());
    } else {
        setLogicalWidth(minPreferredLogicalWidth());
        setLogicalHeight(style().fontMetrics().height());
    }

    setMarginStart(0);
    setMarginEnd(0);

    Length startMargin = style().marginStart();
    Length endMargin = style().marginEnd();
    if (startMargin.isFixed())
        setMarginStart(startMargin.value());
    if (endMargin.isFixed())
        setMarginEnd(endMargin.value());

    clearNeedsLayout();
}

void RenderListMarker::imageChanged(WrappedImagePtr o, const IntRect*)
{
    // A list marker can't have a background or border image, so no need to call the base class method.
    if (o != m_image->data())
        return;

    if (width() != m_image->imageSize(this, style().effectiveZoom()).width() || height() != m_image->imageSize(this, style().effectiveZoom()).height() || m_image->errorOccurred())
        setNeedsLayoutAndPrefWidthsRecalc();
    else
        repaint();
}

void RenderListMarker::updateMarginsAndContent()
{
    updateContent();
    updateMargins();
}

void RenderListMarker::updateContent()
{
    // FIXME: This if-statement is just a performance optimization, but it's messy to use the preferredLogicalWidths dirty bit for this.
    // It's unclear if this is a premature optimization.
    if (!preferredLogicalWidthsDirty())
        return;

    m_text = "";

    if (isImage()) {
        // FIXME: This is a somewhat arbitrary width.  Generated images for markers really won't become particularly useful
        // until we support the CSS3 marker pseudoclass to allow control over the width and height of the marker box.
        LayoutUnit bulletWidth = style().fontMetrics().ascent() / LayoutUnit(2);
        LayoutSize defaultBulletSize(bulletWidth, bulletWidth);
        LayoutSize imageSize;
        calculateImageIntrinsicDimensions(m_image.get(), defaultBulletSize, DoNotScaleByEffectiveZoom, imageSize);
        m_image->setContainerSizeForRenderer(this, imageSize, style().effectiveZoom());
        return;
    }

    EListStyleType type = style().listStyleType();
    switch (type) {
    case NoneListStyle:
        break;
    case Circle:
    case Disc:
    case Square:
        m_text = listMarkerText(type, 0); // value is ignored for these types
        break;
    case Asterisks:
    case Footnotes:
    case Afar:
    case Amharic:
    case AmharicAbegede:
    case ArabicIndic:
    case Armenian:
    case BinaryListStyle:
    case Bengali:
    case Cambodian:
    case CJKIdeographic:
    case CjkEarthlyBranch:
    case CjkHeavenlyStem:
    case DecimalLeadingZero:
    case DecimalListStyle:
    case Devanagari:
    case Ethiopic:
    case EthiopicAbegede:
    case EthiopicAbegedeAmEt:
    case EthiopicAbegedeGez:
    case EthiopicAbegedeTiEr:
    case EthiopicAbegedeTiEt:
    case EthiopicHalehameAaEr:
    case EthiopicHalehameAaEt:
    case EthiopicHalehameAmEt:
    case EthiopicHalehameGez:
    case EthiopicHalehameOmEt:
    case EthiopicHalehameSidEt:
    case EthiopicHalehameSoEt:
    case EthiopicHalehameTiEr:
    case EthiopicHalehameTiEt:
    case EthiopicHalehameTig:
    case Georgian:
    case Gujarati:
    case Gurmukhi:
    case Hangul:
    case HangulConsonant:
    case Hebrew:
    case Hiragana:
    case HiraganaIroha:
    case Kannada:
    case Katakana:
    case KatakanaIroha:
    case Khmer:
    case Lao:
    case LowerAlpha:
    case LowerArmenian:
    case LowerGreek:
    case LowerHexadecimal:
    case LowerLatin:
    case LowerNorwegian:
    case LowerRoman:
    case Malayalam:
    case Mongolian:
    case Myanmar:
    case Octal:
    case Oriya:
    case Oromo:
    case Persian:
    case Sidama:
    case Somali:
    case Telugu:
    case Thai:
    case Tibetan:
    case Tigre:
    case TigrinyaEr:
    case TigrinyaErAbegede:
    case TigrinyaEt:
    case TigrinyaEtAbegede:
    case UpperAlpha:
    case UpperArmenian:
    case UpperGreek:
    case UpperHexadecimal:
    case UpperLatin:
    case UpperNorwegian:
    case UpperRoman:
    case Urdu:
        m_text = listMarkerText(type, m_listItem.value());
        break;
    }
}

void RenderListMarker::computePreferredLogicalWidths()
{
    ASSERT(preferredLogicalWidthsDirty());
    updateContent();

    if (isImage()) {
        LayoutSize imageSize = LayoutSize(m_image->imageSize(this, style().effectiveZoom()));
        m_minPreferredLogicalWidth = m_maxPreferredLogicalWidth = style().isHorizontalWritingMode() ? imageSize.width() : imageSize.height();
        setPreferredLogicalWidthsDirty(false);
        updateMargins();
        return;
    }

    const FontCascade& font = style().fontCascade();

    LayoutUnit logicalWidth = 0;
    EListStyleType type = style().listStyleType();
    switch (type) {
        case NoneListStyle:
            break;
        case Asterisks:
        case Footnotes: {
            TextRun run = RenderBlock::constructTextRun(this, font, m_text, style(), AllowTrailingExpansion | ForbidLeadingExpansion, DefaultTextRunFlags);
            logicalWidth = font.width(run); // no suffix for these types
        }
            break;
        case Circle:
        case Disc:
        case Square:
            logicalWidth = (font.fontMetrics().ascent() * 2 / 3 + 1) / 2 + 2;
            break;
        case Afar:
        case Amharic:
        case AmharicAbegede:
        case ArabicIndic:
        case Armenian:
        case BinaryListStyle:
        case Bengali:
        case Cambodian:
        case CJKIdeographic:
        case CjkEarthlyBranch:
        case CjkHeavenlyStem:
        case DecimalLeadingZero:
        case DecimalListStyle:
        case Devanagari:
        case Ethiopic:
        case EthiopicAbegede:
        case EthiopicAbegedeAmEt:
        case EthiopicAbegedeGez:
        case EthiopicAbegedeTiEr:
        case EthiopicAbegedeTiEt:
        case EthiopicHalehameAaEr:
        case EthiopicHalehameAaEt:
        case EthiopicHalehameAmEt:
        case EthiopicHalehameGez:
        case EthiopicHalehameOmEt:
        case EthiopicHalehameSidEt:
        case EthiopicHalehameSoEt:
        case EthiopicHalehameTiEr:
        case EthiopicHalehameTiEt:
        case EthiopicHalehameTig:
        case Georgian:
        case Gujarati:
        case Gurmukhi:
        case Hangul:
        case HangulConsonant:
        case Hebrew:
        case Hiragana:
        case HiraganaIroha:
        case Kannada:
        case Katakana:
        case KatakanaIroha:
        case Khmer:
        case Lao:
        case LowerAlpha:
        case LowerArmenian:
        case LowerGreek:
        case LowerHexadecimal:
        case LowerLatin:
        case LowerNorwegian:
        case LowerRoman:
        case Malayalam:
        case Mongolian:
        case Myanmar:
        case Octal:
        case Oriya:
        case Oromo:
        case Persian:
        case Sidama:
        case Somali:
        case Telugu:
        case Thai:
        case Tibetan:
        case Tigre:
        case TigrinyaEr:
        case TigrinyaErAbegede:
        case TigrinyaEt:
        case TigrinyaEtAbegede:
        case UpperAlpha:
        case UpperArmenian:
        case UpperGreek:
        case UpperHexadecimal:
        case UpperLatin:
        case UpperNorwegian:
        case UpperRoman:
        case Urdu:
            if (m_text.isEmpty())
                logicalWidth = 0;
            else {
                TextRun run = RenderBlock::constructTextRun(this, font, m_text, style(), AllowTrailingExpansion | ForbidLeadingExpansion, DefaultTextRunFlags);
                LayoutUnit itemWidth = font.width(run);
                UChar suffixSpace[2] = { listMarkerSuffix(type, m_listItem.value()), ' ' };
                LayoutUnit suffixSpaceWidth = font.width(RenderBlock::constructTextRun(this, font, suffixSpace, 2, style()));
                logicalWidth = itemWidth + suffixSpaceWidth;
            }
            break;
    }

    m_minPreferredLogicalWidth = logicalWidth;
    m_maxPreferredLogicalWidth = logicalWidth;

    setPreferredLogicalWidthsDirty(false);

    updateMargins();
}

void RenderListMarker::updateMargins()
{
    const FontMetrics& fontMetrics = style().fontMetrics();

    LayoutUnit marginStart = 0;
    LayoutUnit marginEnd = 0;

    if (isInside()) {
        if (isImage())
            marginEnd = cMarkerPadding;
        else switch (style().listStyleType()) {
            case Disc:
            case Circle:
            case Square:
                marginStart = -1;
                marginEnd = fontMetrics.ascent() - minPreferredLogicalWidth() + 1;
                break;
            default:
                break;
        }
    } else {
        if (style().isLeftToRightDirection()) {
            if (isImage())
                marginStart = -minPreferredLogicalWidth() - cMarkerPadding;
            else {
                int offset = fontMetrics.ascent() * 2 / 3;
                switch (style().listStyleType()) {
                    case Disc:
                    case Circle:
                    case Square:
                        marginStart = -offset - cMarkerPadding - 1;
                        break;
                    case NoneListStyle:
                        break;
                    default:
                        marginStart = m_text.isEmpty() ? LayoutUnit() : -minPreferredLogicalWidth() - offset / 2;
                }
            }
            marginEnd = -marginStart - minPreferredLogicalWidth();
        } else {
            if (isImage())
                marginEnd = cMarkerPadding;
            else {
                int offset = fontMetrics.ascent() * 2 / 3;
                switch (style().listStyleType()) {
                    case Disc:
                    case Circle:
                    case Square:
                        marginEnd = offset + cMarkerPadding + 1 - minPreferredLogicalWidth();
                        break;
                    case NoneListStyle:
                        break;
                    default:
                        marginEnd = m_text.isEmpty() ? 0 : offset / 2;
                }
            }
            marginStart = -marginEnd - minPreferredLogicalWidth();
        }
        
    }

    style().setMarginStart(Length(marginStart, Fixed));
    style().setMarginEnd(Length(marginEnd, Fixed));
}

LayoutUnit RenderListMarker::lineHeight(bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
{
    if (!isImage())
        return m_listItem.lineHeight(firstLine, direction, PositionOfInteriorLineBoxes);
    return RenderBox::lineHeight(firstLine, direction, linePositionMode);
}

int RenderListMarker::baselinePosition(FontBaseline baselineType, bool firstLine, LineDirectionMode direction, LinePositionMode linePositionMode) const
{
    if (!isImage())
        return m_listItem.baselinePosition(baselineType, firstLine, direction, PositionOfInteriorLineBoxes);
    return RenderBox::baselinePosition(baselineType, firstLine, direction, linePositionMode);
}

String RenderListMarker::suffix() const
{
    EListStyleType type = style().listStyleType();
    const UChar suffix = listMarkerSuffix(type, m_listItem.value());

    if (suffix == ' ')
        return String(" ");

    // If the suffix is not ' ', an extra space is needed
    UChar data[2];
    if (style().isLeftToRightDirection()) {
        data[0] = suffix;
        data[1] = ' ';
    } else {
        data[0] = ' ';
        data[1] = suffix;
    }

    return String(data, 2);
}

bool RenderListMarker::isInside() const
{
    return m_listItem.notInList() || style().listStylePosition() == INSIDE;
}

FloatRect RenderListMarker::getRelativeMarkerRect()
{
    if (isImage())
        return FloatRect(0, 0, m_image->imageSize(this, style().effectiveZoom()).width(), m_image->imageSize(this, style().effectiveZoom()).height());
    
    FloatRect relativeRect;
    EListStyleType type = style().listStyleType();
    switch (type) {
        case Asterisks:
        case Footnotes: {
            const FontCascade& font = style().fontCascade();
            TextRun run = RenderBlock::constructTextRun(this, font, m_text, style(), AllowTrailingExpansion | ForbidLeadingExpansion, DefaultTextRunFlags);
            relativeRect = FloatRect(0, 0, font.width(run), font.fontMetrics().height());
            break;
        }
        case Disc:
        case Circle:
        case Square: {
            // FIXME: Are these particular rounding rules necessary?
            const FontMetrics& fontMetrics = style().fontMetrics();
            int ascent = fontMetrics.ascent();
            int bulletWidth = (ascent * 2 / 3 + 1) / 2;
            relativeRect = FloatRect(1, 3 * (ascent - ascent * 2 / 3) / 2, bulletWidth, bulletWidth);
            break;
        }
        case NoneListStyle:
            return FloatRect();
        case Afar:
        case Amharic:
        case AmharicAbegede:
        case ArabicIndic:
        case Armenian:
        case BinaryListStyle:
        case Bengali:
        case Cambodian:
        case CJKIdeographic:
        case CjkEarthlyBranch:
        case CjkHeavenlyStem:
        case DecimalLeadingZero:
        case DecimalListStyle:
        case Devanagari:
        case Ethiopic:
        case EthiopicAbegede:
        case EthiopicAbegedeAmEt:
        case EthiopicAbegedeGez:
        case EthiopicAbegedeTiEr:
        case EthiopicAbegedeTiEt:
        case EthiopicHalehameAaEr:
        case EthiopicHalehameAaEt:
        case EthiopicHalehameAmEt:
        case EthiopicHalehameGez:
        case EthiopicHalehameOmEt:
        case EthiopicHalehameSidEt:
        case EthiopicHalehameSoEt:
        case EthiopicHalehameTiEr:
        case EthiopicHalehameTiEt:
        case EthiopicHalehameTig:
        case Georgian:
        case Gujarati:
        case Gurmukhi:
        case Hangul:
        case HangulConsonant:
        case Hebrew:
        case Hiragana:
        case HiraganaIroha:
        case Kannada:
        case Katakana:
        case KatakanaIroha:
        case Khmer:
        case Lao:
        case LowerAlpha:
        case LowerArmenian:
        case LowerGreek:
        case LowerHexadecimal:
        case LowerLatin:
        case LowerNorwegian:
        case LowerRoman:
        case Malayalam:
        case Mongolian:
        case Myanmar:
        case Octal:
        case Oriya:
        case Oromo:
        case Persian:
        case Sidama:
        case Somali:
        case Telugu:
        case Thai:
        case Tibetan:
        case Tigre:
        case TigrinyaEr:
        case TigrinyaErAbegede:
        case TigrinyaEt:
        case TigrinyaEtAbegede:
        case UpperAlpha:
        case UpperArmenian:
        case UpperGreek:
        case UpperHexadecimal:
        case UpperLatin:
        case UpperNorwegian:
        case UpperRoman:
        case Urdu:
            if (m_text.isEmpty())
                return FloatRect();
            const FontCascade& font = style().fontCascade();
            TextRun run = RenderBlock::constructTextRun(this, font, m_text, style(), AllowTrailingExpansion | ForbidLeadingExpansion, DefaultTextRunFlags);
            float itemWidth = font.width(run);
            UChar suffixSpace[2] = { listMarkerSuffix(type, m_listItem.value()), ' ' };
            float suffixSpaceWidth = font.width(RenderBlock::constructTextRun(this, font, suffixSpace, 2, style()));
            relativeRect = FloatRect(0, 0, itemWidth + suffixSpaceWidth, font.fontMetrics().height());
    }

    if (!style().isHorizontalWritingMode()) {
        relativeRect = relativeRect.transposedRect();
        relativeRect.setX(width() - relativeRect.x() - relativeRect.width());
    }

    return relativeRect;
}

void RenderListMarker::setSelectionState(SelectionState state)
{
    // The selection state for our containing block hierarchy is updated by the base class call.
    RenderBox::setSelectionState(state);

    if (m_inlineBoxWrapper && canUpdateSelectionOnRootLineBoxes())
        m_inlineBoxWrapper->root().setHasSelectedChildren(state != SelectionNone);
}

LayoutRect RenderListMarker::selectionRectForRepaint(const RenderLayerModelObject* repaintContainer, bool clipToVisibleContent)
{
    ASSERT(!needsLayout());

    if (selectionState() == SelectionNone || !inlineBoxWrapper())
        return LayoutRect();

    RootInlineBox& rootBox = inlineBoxWrapper()->root();
    LayoutRect rect(0, rootBox.selectionTop() - y(), width(), rootBox.selectionHeight());
            
    if (clipToVisibleContent)
        computeRectForRepaint(repaintContainer, rect);
    else
        rect = localToContainerQuad(FloatRect(rect), repaintContainer).enclosingBoundingBox();
    
    return rect;
}

} // namespace WebCore