cssprimitivevalue.cpp

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    }

    cleanup();

    //if(m_type > CSS_DIMENSION) throw DOMException(INVALID_ACCESS_ERR);
    m_value.num = floatValue;
    m_type = unitType;
}

static double scaleFactorForConversion(unsigned short unitType)
{
    double factor = 1.0;
    switch (unitType) {
        case CSSPrimitiveValue::CSS_PX:
            break;
        case CSSPrimitiveValue::CSS_CM:
            factor = cssPixelsPerInch / 2.54; // (2.54 cm/in)
            break;
        case CSSPrimitiveValue::CSS_MM:
            factor = cssPixelsPerInch / 25.4;
            break;
        case CSSPrimitiveValue::CSS_IN:
            factor = cssPixelsPerInch;
            break;
        case CSSPrimitiveValue::CSS_PT:
            factor = cssPixelsPerInch / 72.0;
            break;
        case CSSPrimitiveValue::CSS_PC:
            factor = cssPixelsPerInch * 12.0 / 72.0; // 1 pc == 12 pt
            break;
        default:
            break;
    }

    return factor;
}

double CSSPrimitiveValue::getDoubleValue(unsigned short unitType, ExceptionCode& ec)
{
    ec = 0;
    if (m_type < CSS_NUMBER || m_type > CSS_DIMENSION || unitType < CSS_NUMBER || unitType > CSS_DIMENSION) {
        ec = INVALID_ACCESS_ERR;
        return 0.0;
    }

    if (unitType == m_type || unitType < CSS_PX || unitType > CSS_PC)
        return m_value.num;

    double convertedValue = m_value.num;

    // First convert the value from m_type into CSSPixels
    double factor = scaleFactorForConversion(m_type);
    convertedValue *= factor;

    // Now convert from CSSPixels to the specified unitType
    factor = scaleFactorForConversion(unitType);
    convertedValue /= factor;

    return convertedValue;
}

double CSSPrimitiveValue::getDoubleValue(unsigned short unitType)
{
    if (m_type < CSS_NUMBER || m_type > CSS_DIMENSION || unitType < CSS_NUMBER || unitType > CSS_DIMENSION)
        return 0;

    if (unitType == m_type || unitType < CSS_PX || unitType > CSS_PC)
        return m_value.num;

    double convertedValue = m_value.num;

    // First convert the value from m_type into CSSPixels
    double factor = scaleFactorForConversion(m_type);
    convertedValue *= factor;

    // Now convert from CSSPixels to the specified unitType
    factor = scaleFactorForConversion(unitType);
    convertedValue /= factor;

    return convertedValue;
}


void CSSPrimitiveValue::setStringValue(unsigned short stringType, const String& stringValue, ExceptionCode& ec)
{
    ec = 0;

    //if(m_type < CSS_STRING) throw DOMException(INVALID_ACCESS_ERR);
    //if(m_type > CSS_ATTR) throw DOMException(INVALID_ACCESS_ERR);
    if (m_type < CSS_STRING || m_type > CSS_ATTR) {
        ec = SYNTAX_ERR;
        return;
    }

    cleanup();

    if (stringType != CSS_IDENT) {
        m_value.string = stringValue.impl();
        m_value.string->ref();
        m_type = stringType;
    }
    // FIXME: parse ident
}

String CSSPrimitiveValue::getStringValue(ExceptionCode& ec) const
{
    ec = 0;
    switch (m_type) {
        case CSS_STRING:
        case CSS_ATTR:
        case CSS_URI:
        case CSS_PARSER_VARIABLE_FUNCTION_SYNTAX:
            return m_value.string;
        case CSS_IDENT:
            return valueOrPropertyName(m_value.ident);
        default:
            ec = INVALID_ACCESS_ERR;
            break;
    }

    return String();
}

String CSSPrimitiveValue::getStringValue() const
{
    switch (m_type) {
        case CSS_STRING:
        case CSS_ATTR:
        case CSS_URI:
        case CSS_PARSER_VARIABLE_FUNCTION_SYNTAX:
             return m_value.string;
        case CSS_IDENT:
            return valueOrPropertyName(m_value.ident);
        default:
            break;
    }

    return String();
}

Counter* CSSPrimitiveValue::getCounterValue(ExceptionCode& ec) const
{
    ec = 0;
    if (m_type != CSS_COUNTER) {
        ec = INVALID_ACCESS_ERR;
        return 0;
    }

    return m_value.counter;
}

Rect* CSSPrimitiveValue::getRectValue(ExceptionCode& ec) const
{
    ec = 0;
    if (m_type != CSS_RECT) {
        ec = INVALID_ACCESS_ERR;
        return 0;
    }

    return m_value.rect;
}

unsigned CSSPrimitiveValue::getRGBColorValue(ExceptionCode& ec) const
{
    ec = 0;
    if (m_type != CSS_RGBCOLOR) {
        ec = INVALID_ACCESS_ERR;
        return 0;
    }

    return m_value.rgbcolor;
}

Pair* CSSPrimitiveValue::getPairValue(ExceptionCode& ec) const
{
    ec = 0;
    if (m_type != CSS_PAIR) {
        ec = INVALID_ACCESS_ERR;
        return 0;
    }

    return m_value.pair;
}

unsigned short CSSPrimitiveValue::cssValueType() const
{
    return CSS_PRIMITIVE_VALUE;
}

bool CSSPrimitiveValue::parseString(const String& /*string*/, bool /*strict*/)
{
    // FIXME
    return false;
}

int CSSPrimitiveValue::getIdent()
{
    if (m_type != CSS_IDENT)
        return 0;
    return m_value.ident;
}

String CSSPrimitiveValue::cssText() const
{
    // FIXME: return the original value instead of a generated one (e.g. color
    // name if it was specified) - check what spec says about this
    String text;
    switch (m_type) {
        case CSS_UNKNOWN:
            // FIXME
            break;
        case CSS_NUMBER:
        case CSS_PARSER_INTEGER:
            text = String::number(m_value.num);
            break;
        case CSS_PERCENTAGE:
            text = String::format("%.6lg%%", m_value.num);
            break;
        case CSS_EMS:
            text = String::format("%.6lgem", m_value.num);
            break;
        case CSS_EXS:
            text = String::format("%.6lgex", m_value.num);
            break;
        case CSS_PX:
            text = String::format("%.6lgpx", m_value.num);
            break;
        case CSS_CM:
            text = String::format("%.6lgcm", m_value.num);
            break;
        case CSS_MM:
            text = String::format("%.6lgmm", m_value.num);
            break;
        case CSS_IN:
            text = String::format("%.6lgin", m_value.num);
            break;
        case CSS_PT:
            text = String::format("%.6lgpt", m_value.num);
            break;
        case CSS_PC:
            text = String::format("%.6lgpc", m_value.num);
            break;
        case CSS_DEG:
            text = String::format("%.6lgdeg", m_value.num);
            break;
        case CSS_RAD:
            text = String::format("%.6lgrad", m_value.num);
            break;
        case CSS_GRAD:
            text = String::format("%.6lggrad", m_value.num);
            break;
        case CSS_MS:
            text = String::format("%.6lgms", m_value.num);
            break;
        case CSS_S:
            text = String::format("%.6lgs", m_value.num);
            break;
        case CSS_HZ:
            text = String::format("%.6lghz", m_value.num);
            break;
        case CSS_KHZ:
            text = String::format("%.6lgkhz", m_value.num);
            break;
        case CSS_TURN:
            text = String::format("%.6lgturn", m_value.num);
            break;
        case CSS_DIMENSION:
            // FIXME
            break;
        case CSS_STRING:
            text = quoteStringIfNeeded(m_value.string);
            break;
        case CSS_URI:
            text = "url(" + quoteURLIfNeeded(m_value.string) + ")";
            break;
        case CSS_IDENT:
            text = valueOrPropertyName(m_value.ident);
            break;
        case CSS_ATTR:
            // FIXME
            break;
        case CSS_COUNTER:
            text = "counter(";
            text += String::number(m_value.num);
            text += ")";
            // FIXME: Add list-style and separator
            break;
        case CSS_RECT: {
            DEFINE_STATIC_LOCAL(const String, rectParen, ("rect("));

            Rect* rectVal = getRectValue();
            Vector<UChar> result;
            result.reserveInitialCapacity(32);
            append(result, rectParen);

            append(result, rectVal->top()->cssText());
            result.append(' ');

            append(result, rectVal->right()->cssText());
            result.append(' ');

            append(result, rectVal->bottom()->cssText());
            result.append(' ');

            append(result, rectVal->left()->cssText());
            result.append(')');

            return String::adopt(result);
        }
        case CSS_RGBCOLOR:
        case CSS_PARSER_HEXCOLOR: {
            DEFINE_STATIC_LOCAL(const String, commaSpace, (", "));
            DEFINE_STATIC_LOCAL(const String, rgbParen, ("rgb("));
            DEFINE_STATIC_LOCAL(const String, rgbaParen, ("rgba("));

            RGBA32 rgbColor = m_value.rgbcolor;
            if (m_type == CSS_PARSER_HEXCOLOR)
                Color::parseHexColor(m_value.string, rgbColor);
            Color color(rgbColor);

            Vector<UChar> result;
            result.reserveInitialCapacity(32);
            if (color.hasAlpha())
                append(result, rgbaParen);
            else
                append(result, rgbParen);

            appendNumber(result, static_cast<unsigned char>(color.red()));
            append(result, commaSpace);

            appendNumber(result, static_cast<unsigned char>(color.green()));
            append(result, commaSpace);

            appendNumber(result, static_cast<unsigned char>(color.blue()));
            if (color.hasAlpha()) {
                append(result, commaSpace);
                append(result, String::number(static_cast<float>(color.alpha()) / 256.0f));
            }

            result.append(')');
            return String::adopt(result);
        }
        case CSS_PAIR:
            text = m_value.pair->first()->cssText();
            text += " ";
            text += m_value.pair->second()->cssText();
            break;
#if ENABLE(DASHBOARD_SUPPORT)
        case CSS_DASHBOARD_REGION:
            for (DashboardRegion* region = getDashboardRegionValue(); region; region = region->m_next.get()) {
                if (!text.isEmpty())
                    text.append(' ');
                text += "dashboard-region(";
                text += region->m_label;
                if (region->m_isCircle)
                    text += " circle";
                else if (region->m_isRectangle)
                    text += " rectangle";
                else
                    break;
                if (region->top()->m_type == CSS_IDENT && region->top()->getIdent() == CSSValueInvalid) {
                    ASSERT(region->right()->m_type == CSS_IDENT);
                    ASSERT(region->bottom()->m_type == CSS_IDENT);
                    ASSERT(region->left()->m_type == CSS_IDENT);
                    ASSERT(region->right()->getIdent() == CSSValueInvalid);
                    ASSERT(region->bottom()->getIdent() == CSSValueInvalid);
                    ASSERT(region->left()->getIdent() == CSSValueInvalid);
                } else {
                    text.append(' ');
                    text += region->top()->cssText() + " ";
                    text += region->right()->cssText() + " ";
                    text += region->bottom()->cssText() + " ";
                    text += region->left()->cssText();
                }
                text += ")";
            }
            break;
#endif
        case CSS_PARSER_VARIABLE_FUNCTION_SYNTAX:
            text = "-webkit-var(";
            text += m_value.string;
            text += ")";
            break;
        case CSS_PARSER_OPERATOR: {
            char c = static_cast<char>(m_value.ident);
            text = String(&c, 1U);
            break;
        }
        case CSS_PARSER_IDENTIFIER:
            text = quoteStringIfNeeded(m_value.string);
            break;
    }
    return text;
}

CSSParserValue CSSPrimitiveValue::parserValue() const
{
    // We only have to handle a subset of types.
    CSSParserValue value;
    value.id = 0;
    value.isInt = false;
    value.unit = CSSPrimitiveValue::CSS_IDENT;
    switch (m_type) {
        case CSS_NUMBER:
        case CSS_PERCENTAGE:
        case CSS_EMS:
        case CSS_EXS:
        case CSS_PX:
        case CSS_CM:
        case CSS_MM:
        case CSS_IN:
        case CSS_PT:
        case CSS_PC:
        case CSS_DEG:
        case CSS_RAD:
        case CSS_GRAD:
        case CSS_MS:
        case CSS_S:
        case CSS_HZ:
        case CSS_KHZ:
        case CSS_DIMENSION:
        case CSS_TURN:
            value.fValue = m_value.num;
            value.unit = m_type;
            break;
        case CSS_STRING:
        case CSS_URI:
        case CSS_PARSER_VARIABLE_FUNCTION_SYNTAX:
        case CSS_PARSER_HEXCOLOR:
            value.string.characters = const_cast<UChar*>(m_value.string->characters());
            value.string.length = m_value.string->length();
            value.unit = m_type;
            break;
        case CSS_IDENT: {
            value.id = m_value.ident;
            String name = valueOrPropertyName(m_value.ident);
            value.string.characters = const_cast<UChar*>(name.characters());
            value.string.length = name.length();
            break;
        }
        case CSS_PARSER_OPERATOR:
            value.iValue = m_value.ident;
            value.unit = CSSParserValue::Operator;
            break;
        case CSS_PARSER_INTEGER:
            value.fValue = m_value.num;
            value.unit = CSSPrimitiveValue::CSS_NUMBER;
            value.isInt = true;
            break;
        case CSS_PARSER_IDENTIFIER:
            value.string.characters = const_cast<UChar*>(m_value.string->characters());
            value.string.length = m_value.string->length();
            value.unit = CSSPrimitiveValue::CSS_IDENT;
            break;
        case CSS_UNKNOWN:
        case CSS_ATTR:
        case CSS_COUNTER:
        case CSS_RECT:
        case CSS_RGBCOLOR:
        case CSS_PAIR:
#if ENABLE(DASHBOARD_SUPPORT)
        case CSS_DASHBOARD_REGION:
#endif
            ASSERT_NOT_REACHED();
            break;
    }
    
    return value;
}

void CSSPrimitiveValue::addSubresourceStyleURLs(ListHashSet<KURL>& urls, const CSSStyleSheet* styleSheet)
{
    if (m_type == CSS_URI)
        addSubresourceURL(urls, styleSheet->completeURL(m_value.string));
}

} // namespace WebCore