/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2007, 2008 Apple Inc. All rights reserved.
*
* 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 "CSSPrimitiveValue.h"
#include "CSSHelper.h"
#include "CSSPropertyNames.h"
#include "CSSStyleSheet.h"
#include "CSSValueKeywords.h"
#include "Color.h"
#include "Counter.h"
#include "ExceptionCode.h"
#include "Node.h"
#include "Pair.h"
#include "Rect.h"
#include "RenderStyle.h"
#include <wtf/ASCIICType.h>
#include <wtf/StdLibExtras.h>
#if ENABLE(DASHBOARD_SUPPORT)
#include "DashboardRegion.h"
#endif
using namespace WTF;
namespace WebCore {
// A more stylish solution than sharing would be to turn CSSPrimitiveValue (or CSSValues in general) into non-virtual,
// non-refcounted simple type with value semantics. In practice these sharing tricks get similar memory benefits
// with less need for refactoring.
PassRefPtr<CSSPrimitiveValue> CSSPrimitiveValue::createIdentifier(int ident)
{
static RefPtr<CSSPrimitiveValue>* identValueCache = new RefPtr<CSSPrimitiveValue>[numCSSValueKeywords];
if (ident >= 0 && ident < numCSSValueKeywords) {
RefPtr<CSSPrimitiveValue> primitiveValue = identValueCache[ident];
if (!primitiveValue) {
primitiveValue = adoptRef(new CSSPrimitiveValue(ident));
identValueCache[ident] = primitiveValue;
}
return primitiveValue.release();
}
return adoptRef(new CSSPrimitiveValue(ident));
}
PassRefPtr<CSSPrimitiveValue> CSSPrimitiveValue::createColor(unsigned rgbValue)
{
typedef HashMap<unsigned, RefPtr<CSSPrimitiveValue> > ColorValueCache;
static ColorValueCache* colorValueCache = new ColorValueCache;
// These are the empty and deleted values of the hash table.
if (rgbValue == Color::transparent) {
static CSSPrimitiveValue* colorTransparent = new CSSPrimitiveValue(Color::transparent);
return colorTransparent;
}
if (rgbValue == Color::white) {
static CSSPrimitiveValue* colorWhite = new CSSPrimitiveValue(Color::white);
return colorWhite;
}
RefPtr<CSSPrimitiveValue> primitiveValue = colorValueCache->get(rgbValue);
if (primitiveValue)
return primitiveValue.release();
primitiveValue = adoptRef(new CSSPrimitiveValue(rgbValue));
// Just wipe out the cache and start rebuilding when it gets too big.
const int maxColorCacheSize = 512;
if (colorValueCache->size() >= maxColorCacheSize)
colorValueCache->clear();
colorValueCache->add(rgbValue, primitiveValue);
return primitiveValue.release();
}
PassRefPtr<CSSPrimitiveValue> CSSPrimitiveValue::create(double value, UnitTypes type)
{
// Small integers are very common. Try to share them.
const int cachedIntegerCount = 128;
// Other common primitive types have UnitTypes smaller than this.
const int maxCachedUnitType = CSS_PX;
typedef RefPtr<CSSPrimitiveValue>(* IntegerValueCache)[maxCachedUnitType + 1];
static IntegerValueCache integerValueCache = new RefPtr<CSSPrimitiveValue>[cachedIntegerCount][maxCachedUnitType + 1];
if (type <= maxCachedUnitType && value >= 0 && value < cachedIntegerCount) {
int intValue = static_cast<int>(value);
if (value == intValue) {
RefPtr<CSSPrimitiveValue> primitiveValue = integerValueCache[intValue][type];
if (!primitiveValue) {
primitiveValue = adoptRef(new CSSPrimitiveValue(value, type));
integerValueCache[intValue][type] = primitiveValue;
}
return primitiveValue.release();
}
}
return adoptRef(new CSSPrimitiveValue(value, type));
}
PassRefPtr<CSSPrimitiveValue> CSSPrimitiveValue::create(const String& value, UnitTypes type)
{
return adoptRef(new CSSPrimitiveValue(value, type));
}
static const char* valueOrPropertyName(int valueOrPropertyID)
{
if (const char* valueName = getValueName(valueOrPropertyID))
return valueName;
return getPropertyName(static_cast<CSSPropertyID>(valueOrPropertyID));
}
// "ident" from the CSS tokenizer, minus backslash-escape sequences
static bool isCSSTokenizerIdentifier(const String& string)
{
const UChar* p = string.characters();
const UChar* end = p + string.length();
// -?
if (p != end && p[0] == '-')
++p;
// {nmstart}
if (p == end || !(p[0] == '_' || p[0] >= 128 || isASCIIAlpha(p[0])))
return false;
++p;
// {nmchar}*
for (; p != end; ++p) {
if (!(p[0] == '_' || p[0] == '-' || p[0] >= 128 || isASCIIAlphanumeric(p[0])))
return false;
}
return true;
}
// "url" from the CSS tokenizer, minus backslash-escape sequences
static bool isCSSTokenizerURL(const String& string)
{
const UChar* p = string.characters();
const UChar* end = p + string.length();
for (; p != end; ++p) {
UChar c = p[0];
switch (c) {
case '!':
case '#':
case '$':
case '%':
case '&':
break;
default:
if (c < '*')
return false;
if (c <= '~')
break;
if (c < 128)
return false;
}
}
return true;
}
// We use single quotes for now because markup.cpp uses double quotes.
static String quoteString(const String& string)
{
// FIXME: Also need to escape characters like '\n'.
String s = string;
s.replace('\\', "\\\\");
s.replace('\'', "\\'");
return "'" + s + "'";
}
static String quoteStringIfNeeded(const String& string)
{
return isCSSTokenizerIdentifier(string) ? string : quoteString(string);
}
static String quoteURLIfNeeded(const String& string)
{
return isCSSTokenizerURL(string) ? string : quoteString(string);
}
CSSPrimitiveValue::CSSPrimitiveValue()
: m_type(0)
{
}
CSSPrimitiveValue::CSSPrimitiveValue(int ident)
: m_type(CSS_IDENT)
{
m_value.ident = ident;
}
CSSPrimitiveValue::CSSPrimitiveValue(double num, UnitTypes type)
: m_type(type)
{
m_value.num = num;
}
CSSPrimitiveValue::CSSPrimitiveValue(const String& str, UnitTypes type)
: m_type(type)
{
if ((m_value.string = str.impl()))
m_value.string->ref();
}
CSSPrimitiveValue::CSSPrimitiveValue(RGBA32 color)
: m_type(CSS_RGBCOLOR)
{
m_value.rgbcolor = color;
}
CSSPrimitiveValue::CSSPrimitiveValue(const Length& length)
{
switch (length.type()) {
case Auto:
m_type = CSS_IDENT;
m_value.ident = CSSValueAuto;
break;
case WebCore::Fixed:
m_type = CSS_PX;
m_value.num = length.value();
break;
case Intrinsic:
m_type = CSS_IDENT;
m_value.ident = CSSValueIntrinsic;
break;
case MinIntrinsic:
m_type = CSS_IDENT;
m_value.ident = CSSValueMinIntrinsic;
break;
case Percent:
m_type = CSS_PERCENTAGE;
m_value.num = length.percent();
break;
case Relative:
case Static:
ASSERT_NOT_REACHED();
break;
}
}
void CSSPrimitiveValue::init(PassRefPtr<Counter> c)
{
m_type = CSS_COUNTER;
m_value.counter = c.releaseRef();
}
void CSSPrimitiveValue::init(PassRefPtr<Rect> r)
{
m_type = CSS_RECT;
m_value.rect = r.releaseRef();
}
#if ENABLE(DASHBOARD_SUPPORT)
void CSSPrimitiveValue::init(PassRefPtr<DashboardRegion> r)
{
m_type = CSS_DASHBOARD_REGION;
m_value.region = r.releaseRef();
}
#endif
void CSSPrimitiveValue::init(PassRefPtr<Pair> p)
{
m_type = CSS_PAIR;
m_value.pair = p.releaseRef();
}
CSSPrimitiveValue::~CSSPrimitiveValue()
{
cleanup();
}
void CSSPrimitiveValue::cleanup()
{
switch (m_type) {
case CSS_STRING:
case CSS_URI:
case CSS_ATTR:
case CSS_PARSER_VARIABLE_FUNCTION_SYNTAX:
case CSS_PARSER_HEXCOLOR:
if (m_value.string)
m_value.string->deref();
break;
case CSS_COUNTER:
m_value.counter->deref();
break;
case CSS_RECT:
m_value.rect->deref();
break;
case CSS_PAIR:
m_value.pair->deref();
break;
#if ENABLE(DASHBOARD_SUPPORT)
case CSS_DASHBOARD_REGION:
if (m_value.region)
m_value.region->deref();
break;
#endif
default:
break;
}
m_type = 0;
}
int CSSPrimitiveValue::computeLengthInt(RenderStyle* style)
{
double result = computeLengthDouble(style);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > INT_MAX || result < INT_MIN)
return 0;
return static_cast<int>(result);
}
int CSSPrimitiveValue::computeLengthInt(RenderStyle* style, double multiplier)
{
double result = computeLengthDouble(style, multiplier);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > INT_MAX || result < INT_MIN)
return 0;
return static_cast<int>(result);
}
const int intMaxForLength = 0x7ffffff; // max value for a 28-bit int
const int intMinForLength = (-0x7ffffff - 1); // min value for a 28-bit int
// Lengths expect an int that is only 28-bits, so we have to check for a different overflow.
int CSSPrimitiveValue::computeLengthIntForLength(RenderStyle* style)
{
double result = computeLengthDouble(style);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > intMaxForLength || result < intMinForLength)
return 0;
return static_cast<int>(result);
}
// Lengths expect an int that is only 28-bits, so we have to check for a different overflow.
int CSSPrimitiveValue::computeLengthIntForLength(RenderStyle* style, double multiplier)
{
double result = computeLengthDouble(style, multiplier);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > intMaxForLength || result < intMinForLength)
return 0;
return static_cast<int>(result);
}
short CSSPrimitiveValue::computeLengthShort(RenderStyle* style)
{
double result = computeLengthDouble(style);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > SHRT_MAX || result < SHRT_MIN)
return 0;
return static_cast<short>(result);
}
short CSSPrimitiveValue::computeLengthShort(RenderStyle* style, double multiplier)
{
double result = computeLengthDouble(style, multiplier);
// This conversion is imprecise, often resulting in values of, e.g., 44.99998. We
// need to go ahead and round if we're really close to the next integer value.
result += result < 0 ? -0.01 : +0.01;
if (result > SHRT_MAX || result < SHRT_MIN)
return 0;
return static_cast<short>(result);
}
float CSSPrimitiveValue::computeLengthFloat(RenderStyle* style, bool computingFontSize)
{
return static_cast<float>(computeLengthDouble(style, 1.0, computingFontSize));
}
float CSSPrimitiveValue::computeLengthFloat(RenderStyle* style, double multiplier, bool computingFontSize)
{
return static_cast<float>(computeLengthDouble(style, multiplier, computingFontSize));
}
double CSSPrimitiveValue::computeLengthDouble(RenderStyle* style, double multiplier, bool computingFontSize)
{
unsigned short type = primitiveType();
// We do not apply the zoom factor when we are computing the value of the font-size property. The zooming
// for font sizes is much more complicated, since we have to worry about enforcing the minimum font size preference
// as well as enforcing the implicit "smart minimum." In addition the CSS property text-size-adjust is used to
// prevent text from zooming at all. Therefore we will not apply the zoom here if we are computing font-size.
bool applyZoomMultiplier = !computingFontSize;
double factor = 1.0;
switch (type) {
case CSS_EMS:
applyZoomMultiplier = false;
factor = computingFontSize ? style->fontDescription().specifiedSize() : style->fontDescription().computedSize();
break;
case CSS_EXS:
// FIXME: We have a bug right now where the zoom will be applied twice to EX units.
// We really need to compute EX using fontMetrics for the original specifiedSize and not use
// our actual constructed rendering font.
applyZoomMultiplier = false;
factor = style->font().xHeight();
break;
case CSS_PX:
break;
case CSS_CM:
factor = cssPixelsPerInch / 2.54; // (2.54 cm/in)
break;
case CSS_MM:
factor = cssPixelsPerInch / 25.4;
break;
case CSS_IN:
factor = cssPixelsPerInch;
break;
case CSS_PT:
factor = cssPixelsPerInch / 72.0;
break;
case CSS_PC:
// 1 pc == 12 pt
factor = cssPixelsPerInch * 12.0 / 72.0;
break;
default:
return -1.0;
}
double result = getDoubleValue() * factor;
if (!applyZoomMultiplier || multiplier == 1.0)
return result;
// Any original result that was >= 1 should not be allowed to fall below 1. This keeps border lines from
// vanishing.
double zoomedResult = result * multiplier;
if (result >= 1.0)
zoomedResult = max(1.0, zoomedResult);
return zoomedResult;
}
void CSSPrimitiveValue::setFloatValue(unsigned short unitType, double floatValue, ExceptionCode& ec)
{
ec = 0;
// FIXME: check if property supports this type
if (m_type > CSS_DIMENSION) {
ec = SYNTAX_ERR;
return;
}
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.reserveCapacity(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.reserveCapacity(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