Source/core/css/StylePropertySet.cpp

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
sizeForImmutableStylePropertySetWithPropertyCount
create
immutableCopyIfNeeded
findPropertyIndex
traceAfterDispatch
getPropertyValue
getPropertyCSSValue
trace
finalizeGarbageCollectedObject
removeShorthandProperty
removeProperty
removePrefixedOrUnprefixedProperty
propertyIsImportant
getPropertyShorthand
isPropertyImplicit
setProperty
setProperty
setProperty
getIndexInShorthandVectorForPrefixingVariant
appendPrefixingVariantProperty
setPrefixingVariantProperty
setProperty
setProperty
parseDeclaration
addParsedProperties
addParsedProperty
asText
mergeAndOverrideOnConflict
hasFailedOrCanceledSubresources
blockProperties
clear
copyBlockProperties
removeBlockProperties
removePropertiesInSet
findCSSPropertyWithID
propertyMatches
removeEquivalentProperties
removeEquivalentProperties
mutableCopy
copyPropertiesInSet
ensureCSSStyleDeclaration
findPropertyIndex
traceAfterDispatch
averageSizeInBytes
showStyle
create
create
cssName
cssText
/*
 * (C) 1999-2003 Lars Knoll (knoll@kde.org)
 * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2012, 2013 Apple Inc. All rights reserved.
 * Copyright (C) 2011 Research In Motion Limited. All rights reserved.
 * Copyright (C) 2013 Intel Corporation. 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 "core/css/StylePropertySet.h"

#include "RuntimeEnabledFeatures.h"
#include "StylePropertyShorthand.h"
#include "core/css/parser/BisonCSSParser.h"
#include "core/css/CSSValuePool.h"
#include "core/css/RuntimeCSSEnabled.h"
#include "core/css/StylePropertySerializer.h"
#include "core/css/StyleSheetContents.h"
#include "core/frame/UseCounter.h"
#include "wtf/text/StringBuilder.h"

#ifndef NDEBUG
#include "wtf/text/CString.h"
#include <stdio.h>
#endif

using namespace std;

namespace WebCore {

static size_t sizeForImmutableStylePropertySetWithPropertyCount(unsigned count)
{
    return sizeof(ImmutableStylePropertySet) - sizeof(void*) + sizeof(CSSValue*) * count + sizeof(StylePropertyMetadata) * count;
}

PassRefPtr<ImmutableStylePropertySet> ImmutableStylePropertySet::create(const CSSProperty* properties, unsigned count, CSSParserMode cssParserMode)
{
    ASSERT(count <= MaxArraySize);
#if ENABLE(OILPAN)
    void* slot = Heap::allocate<StylePropertySet>(sizeForImmutableStylePropertySetWithPropertyCount(count));
#else
    void* slot = WTF::fastMalloc(sizeForImmutableStylePropertySetWithPropertyCount(count));
#endif // ENABLE(OILPAN)
    return adoptRefWillBeRefCountedGarbageCollected(new (slot) ImmutableStylePropertySet(properties, count, cssParserMode));
}

PassRefPtr<ImmutableStylePropertySet> StylePropertySet::immutableCopyIfNeeded() const
{
    if (!isMutable())
        return toImmutableStylePropertySet(const_cast<StylePropertySet*>(this));
    const MutableStylePropertySet* mutableThis = toMutableStylePropertySet(this);
    return ImmutableStylePropertySet::create(mutableThis->m_propertyVector.data(), mutableThis->m_propertyVector.size(), cssParserMode());
}

MutableStylePropertySet::MutableStylePropertySet(CSSParserMode cssParserMode)
    : StylePropertySet(cssParserMode)
{
}

MutableStylePropertySet::MutableStylePropertySet(const CSSProperty* properties, unsigned length)
    : StylePropertySet(HTMLStandardMode)
{
    m_propertyVector.reserveInitialCapacity(length);
    for (unsigned i = 0; i < length; ++i)
        m_propertyVector.uncheckedAppend(properties[i]);
}

ImmutableStylePropertySet::ImmutableStylePropertySet(const CSSProperty* properties, unsigned length, CSSParserMode cssParserMode)
    : StylePropertySet(cssParserMode, length)
{
    StylePropertyMetadata* metadataArray = const_cast<StylePropertyMetadata*>(this->metadataArray());
    RawPtrWillBeMember<CSSValue>* valueArray = const_cast<RawPtrWillBeMember<CSSValue>*>(this->valueArray());
    for (unsigned i = 0; i < m_arraySize; ++i) {
        metadataArray[i] = properties[i].metadata();
        valueArray[i] = properties[i].value();
        valueArray[i]->ref();
    }
}

ImmutableStylePropertySet::~ImmutableStylePropertySet()
{
#if !ENABLE(OILPAN)
    RawPtrWillBeMember<CSSValue>* valueArray = const_cast<RawPtrWillBeMember<CSSValue>*>(this->valueArray());
    for (unsigned i = 0; i < m_arraySize; ++i)
        valueArray[i]->deref();
#endif
}

int ImmutableStylePropertySet::findPropertyIndex(CSSPropertyID propertyID) const
{
    // Convert here propertyID into an uint16_t to compare it with the metadata's m_propertyID to avoid
    // the compiler converting it to an int multiple times in the loop.
    uint16_t id = static_cast<uint16_t>(propertyID);
    for (int n = m_arraySize - 1 ; n >= 0; --n) {
        if (metadataArray()[n].m_propertyID == id) {
            // Only enabled or internal properties should be part of the style.
            ASSERT(RuntimeCSSEnabled::isCSSPropertyEnabled(propertyID) || isInternalProperty(propertyID));
            return n;
        }
    }

    return -1;
}

void ImmutableStylePropertySet::traceAfterDispatch(Visitor* visitor)
{
    const RawPtrWillBeMember<CSSValue>* values = valueArray();
    for (unsigned i = 0; i < m_arraySize; i++)
        visitor->trace(values[i]);
    StylePropertySet::traceAfterDispatch(visitor);
}

MutableStylePropertySet::MutableStylePropertySet(const StylePropertySet& other)
    : StylePropertySet(other.cssParserMode())
{
    if (other.isMutable()) {
        m_propertyVector = toMutableStylePropertySet(other).m_propertyVector;
    } else {
        m_propertyVector.reserveInitialCapacity(other.propertyCount());
        for (unsigned i = 0; i < other.propertyCount(); ++i)
            m_propertyVector.uncheckedAppend(other.propertyAt(i).toCSSProperty());
    }
}

String StylePropertySet::getPropertyValue(CSSPropertyID propertyID) const
{
    RefPtrWillBeRawPtr<CSSValue> value = getPropertyCSSValue(propertyID);
    if (value)
        return value->cssText();

    return StylePropertySerializer(*this).getPropertyValue(propertyID);
}

PassRefPtrWillBeRawPtr<CSSValue> StylePropertySet::getPropertyCSSValue(CSSPropertyID propertyID) const
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1)
        return nullptr;
    return propertyAt(foundPropertyIndex).value();
}

void StylePropertySet::trace(Visitor* visitor)
{
    if (m_isMutable)
        toMutableStylePropertySet(this)->traceAfterDispatch(visitor);
    else
        toImmutableStylePropertySet(this)->traceAfterDispatch(visitor);
}

#if ENABLE(OILPAN)
void StylePropertySet::finalizeGarbageCollectedObject()
{
    if (m_isMutable)
        toMutableStylePropertySet(this)->~MutableStylePropertySet();
    else
        toImmutableStylePropertySet(this)->~ImmutableStylePropertySet();
}
#endif

bool MutableStylePropertySet::removeShorthandProperty(CSSPropertyID propertyID)
{
    StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
    if (!shorthand.length())
        return false;

    bool ret = removePropertiesInSet(shorthand.properties(), shorthand.length());

    CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(propertyID);
    if (prefixingVariant == propertyID)
        return ret;

    StylePropertyShorthand shorthandPrefixingVariant = shorthandForProperty(prefixingVariant);
    return removePropertiesInSet(shorthandPrefixingVariant.properties(), shorthandPrefixingVariant.length());
}

bool MutableStylePropertySet::removeProperty(CSSPropertyID propertyID, String* returnText)
{
    if (removeShorthandProperty(propertyID)) {
        // FIXME: Return an equivalent shorthand when possible.
        if (returnText)
            *returnText = "";
        return true;
    }

    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1) {
        if (returnText)
            *returnText = "";
        return false;
    }

    if (returnText)
        *returnText = propertyAt(foundPropertyIndex).value()->cssText();

    // A more efficient removal strategy would involve marking entries as empty
    // and sweeping them when the vector grows too big.
    m_propertyVector.remove(foundPropertyIndex);

    removePrefixedOrUnprefixedProperty(propertyID);

    return true;
}

void MutableStylePropertySet::removePrefixedOrUnprefixedProperty(CSSPropertyID propertyID)
{
    int foundPropertyIndex = findPropertyIndex(prefixingVariantForPropertyId(propertyID));
    if (foundPropertyIndex == -1)
        return;
    m_propertyVector.remove(foundPropertyIndex);
}

bool StylePropertySet::propertyIsImportant(CSSPropertyID propertyID) const
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex != -1)
        return propertyAt(foundPropertyIndex).isImportant();

    StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
    if (!shorthand.length())
        return false;

    for (unsigned i = 0; i < shorthand.length(); ++i) {
        if (!propertyIsImportant(shorthand.properties()[i]))
            return false;
    }
    return true;
}

CSSPropertyID StylePropertySet::getPropertyShorthand(CSSPropertyID propertyID) const
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1)
        return CSSPropertyInvalid;
    return propertyAt(foundPropertyIndex).shorthandID();
}

bool StylePropertySet::isPropertyImplicit(CSSPropertyID propertyID) const
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1)
        return false;
    return propertyAt(foundPropertyIndex).isImplicit();
}

bool MutableStylePropertySet::setProperty(CSSPropertyID propertyID, const String& value, bool important, StyleSheetContents* contextStyleSheet)
{
    // Setting the value to an empty string just removes the property in both IE and Gecko.
    // Setting it to null seems to produce less consistent results, but we treat it just the same.
    if (value.isEmpty())
        return removeProperty(propertyID);

    // When replacing an existing property value, this moves the property to the end of the list.
    // Firefox preserves the position, and MSIE moves the property to the beginning.
    return BisonCSSParser::parseValue(this, propertyID, value, important, cssParserMode(), contextStyleSheet);
}

void MutableStylePropertySet::setProperty(CSSPropertyID propertyID, PassRefPtrWillBeRawPtr<CSSValue> prpValue, bool important)
{
    StylePropertyShorthand shorthand = shorthandForProperty(propertyID);
    if (!shorthand.length()) {
        setProperty(CSSProperty(propertyID, prpValue, important));
        return;
    }

    removePropertiesInSet(shorthand.properties(), shorthand.length());

    RefPtrWillBeRawPtr<CSSValue> value = prpValue;
    for (unsigned i = 0; i < shorthand.length(); ++i)
        m_propertyVector.append(CSSProperty(shorthand.properties()[i], value, important));
}

void MutableStylePropertySet::setProperty(const CSSProperty& property, CSSProperty* slot)
{
    if (!removeShorthandProperty(property.id())) {
        CSSProperty* toReplace = slot ? slot : findCSSPropertyWithID(property.id());
        if (toReplace) {
            *toReplace = property;
            setPrefixingVariantProperty(property);
            return;
        }
    }
    appendPrefixingVariantProperty(property);
}

unsigned getIndexInShorthandVectorForPrefixingVariant(const CSSProperty& property, CSSPropertyID prefixingVariant)
{
    if (!property.isSetFromShorthand())
        return 0;

    CSSPropertyID prefixedShorthand = prefixingVariantForPropertyId(property.shorthandID());
    Vector<StylePropertyShorthand, 4> shorthands;
    getMatchingShorthandsForLonghand(prefixingVariant, &shorthands);
    return indexOfShorthandForLonghand(prefixedShorthand, shorthands);
}

void MutableStylePropertySet::appendPrefixingVariantProperty(const CSSProperty& property)
{
    m_propertyVector.append(property);
    CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(property.id());
    if (prefixingVariant == property.id())
        return;

    m_propertyVector.append(CSSProperty(prefixingVariant, property.value(), property.isImportant(), property.isSetFromShorthand(), getIndexInShorthandVectorForPrefixingVariant(property, prefixingVariant), property.metadata().m_implicit));
}

void MutableStylePropertySet::setPrefixingVariantProperty(const CSSProperty& property)
{
    CSSPropertyID prefixingVariant = prefixingVariantForPropertyId(property.id());
    CSSProperty* toReplace = findCSSPropertyWithID(prefixingVariant);
    if (toReplace && prefixingVariant != property.id())
        *toReplace = CSSProperty(prefixingVariant, property.value(), property.isImportant(), property.isSetFromShorthand(), getIndexInShorthandVectorForPrefixingVariant(property, prefixingVariant), property.metadata().m_implicit);
}

bool MutableStylePropertySet::setProperty(CSSPropertyID propertyID, CSSValueID identifier, bool important)
{
    setProperty(CSSProperty(propertyID, cssValuePool().createIdentifierValue(identifier), important));
    return true;
}

bool MutableStylePropertySet::setProperty(CSSPropertyID propertyID, CSSPropertyID identifier, bool important)
{
    setProperty(CSSProperty(propertyID, cssValuePool().createIdentifierValue(identifier), important));
    return true;
}

void MutableStylePropertySet::parseDeclaration(const String& styleDeclaration, StyleSheetContents* contextStyleSheet)
{
    m_propertyVector.clear();

    CSSParserContext context(cssParserMode(), UseCounter::getFrom(contextStyleSheet));
    if (contextStyleSheet) {
        context = contextStyleSheet->parserContext();
        context.setMode(cssParserMode());
    }

    BisonCSSParser parser(context);
    parser.parseDeclaration(this, styleDeclaration, 0, contextStyleSheet);
}

void MutableStylePropertySet::addParsedProperties(const WillBeHeapVector<CSSProperty, 256>& properties)
{
    m_propertyVector.reserveCapacity(m_propertyVector.size() + properties.size());
    for (unsigned i = 0; i < properties.size(); ++i)
        addParsedProperty(properties[i]);
}

void MutableStylePropertySet::addParsedProperty(const CSSProperty& property)
{
    // Only add properties that have no !important counterpart present
    if (!propertyIsImportant(property.id()) || property.isImportant())
        setProperty(property);
}

String StylePropertySet::asText() const
{
    return StylePropertySerializer(*this).asText();
}

void MutableStylePropertySet::mergeAndOverrideOnConflict(const StylePropertySet* other)
{
    unsigned size = other->propertyCount();
    for (unsigned n = 0; n < size; ++n) {
        PropertyReference toMerge = other->propertyAt(n);
        CSSProperty* old = findCSSPropertyWithID(toMerge.id());
        if (old)
            setProperty(toMerge.toCSSProperty(), old);
        else
            appendPrefixingVariantProperty(toMerge.toCSSProperty());
    }
}

bool StylePropertySet::hasFailedOrCanceledSubresources() const
{
    unsigned size = propertyCount();
    for (unsigned i = 0; i < size; ++i) {
        if (propertyAt(i).value()->hasFailedOrCanceledSubresources())
            return true;
    }
    return false;
}

// This is the list of properties we want to copy in the copyBlockProperties() function.
// It is the list of CSS properties that apply specially to block-level elements.
static const CSSPropertyID staticBlockProperties[] = {
    CSSPropertyOrphans,
    CSSPropertyOverflow, // This can be also be applied to replaced elements
    CSSPropertyWebkitAspectRatio,
    CSSPropertyWebkitColumnCount,
    CSSPropertyWebkitColumnGap,
    CSSPropertyWebkitColumnRuleColor,
    CSSPropertyWebkitColumnRuleStyle,
    CSSPropertyWebkitColumnRuleWidth,
    CSSPropertyWebkitColumnBreakBefore,
    CSSPropertyWebkitColumnBreakAfter,
    CSSPropertyWebkitColumnBreakInside,
    CSSPropertyWebkitColumnWidth,
    CSSPropertyPageBreakAfter,
    CSSPropertyPageBreakBefore,
    CSSPropertyPageBreakInside,
    CSSPropertyTextAlign,
    CSSPropertyTextAlignLast,
    CSSPropertyTextIndent,
    CSSPropertyTextJustify,
    CSSPropertyWidows
};

static const Vector<CSSPropertyID>& blockProperties()
{
    DEFINE_STATIC_LOCAL(Vector<CSSPropertyID>, properties, ());
    if (properties.isEmpty())
        RuntimeCSSEnabled::filterEnabledCSSPropertiesIntoVector(staticBlockProperties, WTF_ARRAY_LENGTH(staticBlockProperties), properties);
    return properties;
}

void MutableStylePropertySet::clear()
{
    m_propertyVector.clear();
}

PassRefPtrWillBeRawPtr<MutableStylePropertySet> StylePropertySet::copyBlockProperties() const
{
    return copyPropertiesInSet(blockProperties());
}

void MutableStylePropertySet::removeBlockProperties()
{
    removePropertiesInSet(blockProperties().data(), blockProperties().size());
}

bool MutableStylePropertySet::removePropertiesInSet(const CSSPropertyID* set, unsigned length)
{
    if (m_propertyVector.isEmpty())
        return false;

    // FIXME: This is always used with static sets and in that case constructing the hash repeatedly is pretty pointless.
    HashSet<CSSPropertyID> toRemove;
    for (unsigned i = 0; i < length; ++i)
        toRemove.add(set[i]);

    WillBeHeapVector<CSSProperty> newProperties;
    newProperties.reserveInitialCapacity(m_propertyVector.size());

    unsigned size = m_propertyVector.size();
    for (unsigned n = 0; n < size; ++n) {
        const CSSProperty& property = m_propertyVector.at(n);
        // Not quite sure if the isImportant test is needed but it matches the existing behavior.
        if (!property.isImportant()) {
            if (toRemove.contains(property.id()))
                continue;
        }
        newProperties.append(property);
    }

    bool changed = newProperties.size() != m_propertyVector.size();
    m_propertyVector = newProperties;
    return changed;
}

CSSProperty* MutableStylePropertySet::findCSSPropertyWithID(CSSPropertyID propertyID)
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1)
        return 0;
    return &m_propertyVector.at(foundPropertyIndex);
}

bool StylePropertySet::propertyMatches(CSSPropertyID propertyID, const CSSValue* propertyValue) const
{
    int foundPropertyIndex = findPropertyIndex(propertyID);
    if (foundPropertyIndex == -1)
        return false;
    return propertyAt(foundPropertyIndex).value()->equals(*propertyValue);
}

void MutableStylePropertySet::removeEquivalentProperties(const StylePropertySet* style)
{
    Vector<CSSPropertyID> propertiesToRemove;
    unsigned size = m_propertyVector.size();
    for (unsigned i = 0; i < size; ++i) {
        PropertyReference property = propertyAt(i);
        if (style->propertyMatches(property.id(), property.value()))
            propertiesToRemove.append(property.id());
    }
    // FIXME: This should use mass removal.
    for (unsigned i = 0; i < propertiesToRemove.size(); ++i)
        removeProperty(propertiesToRemove[i]);
}

void MutableStylePropertySet::removeEquivalentProperties(const CSSStyleDeclaration* style)
{
    Vector<CSSPropertyID> propertiesToRemove;
    unsigned size = m_propertyVector.size();
    for (unsigned i = 0; i < size; ++i) {
        PropertyReference property = propertyAt(i);
        if (style->cssPropertyMatches(property.id(), property.value()))
            propertiesToRemove.append(property.id());
    }
    // FIXME: This should use mass removal.
    for (unsigned i = 0; i < propertiesToRemove.size(); ++i)
        removeProperty(propertiesToRemove[i]);
}

PassRefPtrWillBeRawPtr<MutableStylePropertySet> StylePropertySet::mutableCopy() const
{
    return adoptRefWillBeRefCountedGarbageCollected(new MutableStylePropertySet(*this));
}

PassRefPtrWillBeRawPtr<MutableStylePropertySet> StylePropertySet::copyPropertiesInSet(const Vector<CSSPropertyID>& properties) const
{
    WillBeHeapVector<CSSProperty, 256> list;
    list.reserveInitialCapacity(properties.size());
    for (unsigned i = 0; i < properties.size(); ++i) {
        RefPtrWillBeRawPtr<CSSValue> value = getPropertyCSSValue(properties[i]);
        if (value)
            list.append(CSSProperty(properties[i], value.release(), false));
    }
    return MutableStylePropertySet::create(list.data(), list.size());
}

CSSStyleDeclaration* MutableStylePropertySet::ensureCSSStyleDeclaration()
{
    // FIXME: get rid of this weirdness of a CSSStyleDeclaration inside of a
    // style property set.
    if (m_cssomWrapper) {
        ASSERT(!static_cast<CSSStyleDeclaration*>(m_cssomWrapper.get())->parentRule());
        ASSERT(!m_cssomWrapper->parentElement());
        return m_cssomWrapper.get();
    }
    m_cssomWrapper = adoptPtr(new PropertySetCSSStyleDeclaration(*this));
    return m_cssomWrapper.get();
}

int MutableStylePropertySet::findPropertyIndex(CSSPropertyID propertyID) const
{
    // Convert here propertyID into an uint16_t to compare it with the metadata's m_propertyID to avoid
    // the compiler converting it to an int multiple times in the loop.
    uint16_t id = static_cast<uint16_t>(propertyID);
    for (int n = m_propertyVector.size() - 1 ; n >= 0; --n) {
        if (m_propertyVector.at(n).metadata().m_propertyID == id) {
            // Only enabled or internal properties should be part of the style.
            ASSERT(RuntimeCSSEnabled::isCSSPropertyEnabled(propertyID) || isInternalProperty(propertyID));
            return n;
        }
    }

    return -1;
}

void MutableStylePropertySet::traceAfterDispatch(Visitor* visitor)
{
    visitor->trace(m_propertyVector);
    StylePropertySet::traceAfterDispatch(visitor);
}

unsigned StylePropertySet::averageSizeInBytes()
{
    // Please update this if the storage scheme changes so that this longer reflects the actual size.
    return sizeForImmutableStylePropertySetWithPropertyCount(4);
}

// See the function above if you need to update this.
struct SameSizeAsStylePropertySet : public RefCountedWillBeRefCountedGarbageCollected<SameSizeAsStylePropertySet> {
    unsigned bitfield;
};
COMPILE_ASSERT(sizeof(StylePropertySet) == sizeof(SameSizeAsStylePropertySet), style_property_set_should_stay_small);

#ifndef NDEBUG
void StylePropertySet::showStyle()
{
    fprintf(stderr, "%s\n", asText().ascii().data());
}
#endif

PassRefPtrWillBeRawPtr<MutableStylePropertySet> MutableStylePropertySet::create(CSSParserMode cssParserMode)
{
    return adoptRefWillBeRefCountedGarbageCollected(new MutableStylePropertySet(cssParserMode));
}

PassRefPtrWillBeRawPtr<MutableStylePropertySet> MutableStylePropertySet::create(const CSSProperty* properties, unsigned count)
{
    return adoptRefWillBeRefCountedGarbageCollected(new MutableStylePropertySet(properties, count));
}

String StylePropertySet::PropertyReference::cssName() const
{
    return getPropertyNameString(id());
}

String StylePropertySet::PropertyReference::cssText() const
{
    StringBuilder result;
    result.append(cssName());
    result.appendLiteral(": ");
    result.append(propertyValue()->cssText());
    if (isImportant())
        result.appendLiteral(" !important");
    result.append(';');
    return result.toString();
}


} // namespace WebCore
/* [<][>][^][v][top][bottom][index][help] */
root/Source/core/css/StylePropertySet.cpp

DEFINITIONS
