#ifndef StylePropertySet_h
#define StylePropertySet_h
#include "CSSPropertyNames.h"
#include "core/css/CSSParserMode.h"
#include "core/css/CSSPrimitiveValue.h"
#include "core/css/CSSProperty.h"
#include "core/css/PropertySetCSSStyleDeclaration.h"
#include "wtf/ListHashSet.h"
#include "wtf/Vector.h"
#include "wtf/text/WTFString.h"
namespace WebCore {
class CSSRule;
class CSSStyleDeclaration;
class Element;
class ImmutableStylePropertySet;
class KURL;
class MutableStylePropertySet;
class StylePropertyShorthand;
class StyleSheetContents;
class StylePropertySet : public RefCountedWillBeRefCountedGarbageCollected<StylePropertySet> {
friend class PropertyReference;
public:
#if ENABLE(OILPAN)
void finalizeGarbageCollectedObject();
#else
void deref();
#endif
class PropertyReference {
public:
PropertyReference(const StylePropertySet& propertySet, unsigned index)
: m_propertySet(propertySet)
, m_index(index)
{
}
CSSPropertyID id() const { return static_cast<CSSPropertyID>(propertyMetadata().m_propertyID); }
CSSPropertyID shorthandID() const { return propertyMetadata().shorthandID(); }
bool isImportant() const { return propertyMetadata().m_important; }
bool isInherited() const { return propertyMetadata().m_inherited; }
bool isImplicit() const { return propertyMetadata().m_implicit; }
String cssName() const;
String cssText() const;
const CSSValue* value() const { return propertyValue(); }
CSSValue* value() { return const_cast<CSSValue*>(propertyValue()); }
CSSProperty toCSSProperty() const { return CSSProperty(propertyMetadata(), const_cast<CSSValue*>(propertyValue())); }
const StylePropertyMetadata& propertyMetadata() const;
private:
const CSSValue* propertyValue() const;
const StylePropertySet& m_propertySet;
unsigned m_index;
};
unsigned propertyCount() const;
bool isEmpty() const;
PropertyReference propertyAt(unsigned index) const { return PropertyReference(*this, index); }
int findPropertyIndex(CSSPropertyID) const;
PassRefPtrWillBeRawPtr<CSSValue> getPropertyCSSValue(CSSPropertyID) const;
String getPropertyValue(CSSPropertyID) const;
bool propertyIsImportant(CSSPropertyID) const;
CSSPropertyID getPropertyShorthand(CSSPropertyID) const;
bool isPropertyImplicit(CSSPropertyID) const;
PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyBlockProperties() const;
CSSParserMode cssParserMode() const { return static_cast<CSSParserMode>(m_cssParserMode); }
PassRefPtrWillBeRawPtr<MutableStylePropertySet> mutableCopy() const;
PassRefPtr<ImmutableStylePropertySet> immutableCopyIfNeeded() const;
PassRefPtrWillBeRawPtr<MutableStylePropertySet> copyPropertiesInSet(const Vector<CSSPropertyID>&) const;
String asText() const;
bool isMutable() const { return m_isMutable; }
bool hasFailedOrCanceledSubresources() const;
static unsigned averageSizeInBytes();
#ifndef NDEBUG
void showStyle();
#endif
bool propertyMatches(CSSPropertyID, const CSSValue*) const;
void trace(Visitor*);
void traceAfterDispatch(Visitor*) { }
protected:
enum { MaxArraySize = (1 << 28) - 1 };
StylePropertySet(CSSParserMode cssParserMode)
: m_cssParserMode(cssParserMode)
, m_isMutable(true)
, m_arraySize(0)
{ }
StylePropertySet(CSSParserMode cssParserMode, unsigned immutableArraySize)
: m_cssParserMode(cssParserMode)
, m_isMutable(false)
, m_arraySize(std::min(immutableArraySize, unsigned(MaxArraySize)))
{ }
unsigned m_cssParserMode : 3;
mutable unsigned m_isMutable : 1;
unsigned m_arraySize : 28;
friend class PropertySetCSSStyleDeclaration;
};
class ImmutableStylePropertySet : public StylePropertySet {
public:
~ImmutableStylePropertySet();
static PassRefPtr<ImmutableStylePropertySet> create(const CSSProperty* properties, unsigned count, CSSParserMode);
unsigned propertyCount() const { return m_arraySize; }
const RawPtrWillBeMember<CSSValue>* valueArray() const;
const StylePropertyMetadata* metadataArray() const;
int findPropertyIndex(CSSPropertyID) const;
void traceAfterDispatch(Visitor*);
void* operator new(std::size_t, void* location)
{
return location;
}
void* m_storage;
private:
ImmutableStylePropertySet(const CSSProperty*, unsigned count, CSSParserMode);
};
inline const RawPtrWillBeMember<CSSValue>* ImmutableStylePropertySet::valueArray() const
{
return reinterpret_cast<const RawPtrWillBeMember<CSSValue>*>(const_cast<const void**>(&(this->m_storage)));
}
inline const StylePropertyMetadata* ImmutableStylePropertySet::metadataArray() const
{
return reinterpret_cast<const StylePropertyMetadata*>(&reinterpret_cast<const char*>(&(this->m_storage))[m_arraySize * sizeof(RawPtrWillBeMember<CSSValue>)]);
}
DEFINE_TYPE_CASTS(ImmutableStylePropertySet, StylePropertySet, set, !set->isMutable(), !set.isMutable());
inline ImmutableStylePropertySet* toImmutableStylePropertySet(const RefPtr<StylePropertySet>& set)
{
return toImmutableStylePropertySet(set.get());
}
class MutableStylePropertySet : public StylePropertySet {
public:
~MutableStylePropertySet() { }
static PassRefPtrWillBeRawPtr<MutableStylePropertySet> create(CSSParserMode = HTMLQuirksMode);
static PassRefPtrWillBeRawPtr<MutableStylePropertySet> create(const CSSProperty* properties, unsigned count);
unsigned propertyCount() const { return m_propertyVector.size(); }
void addParsedProperties(const WillBeHeapVector<CSSProperty, 256>&);
void addParsedProperty(const CSSProperty&);
bool setProperty(CSSPropertyID, const String& value, bool important = false, StyleSheetContents* contextStyleSheet = 0);
void setProperty(CSSPropertyID, PassRefPtrWillBeRawPtr<CSSValue>, bool important = false);
bool setProperty(CSSPropertyID, CSSValueID identifier, bool important = false);
bool setProperty(CSSPropertyID, CSSPropertyID identifier, bool important = false);
void appendPrefixingVariantProperty(const CSSProperty&);
void setPrefixingVariantProperty(const CSSProperty&);
void setProperty(const CSSProperty&, CSSProperty* slot = 0);
bool removeProperty(CSSPropertyID, String* returnText = 0);
void removePrefixedOrUnprefixedProperty(CSSPropertyID);
void removeBlockProperties();
bool removePropertiesInSet(const CSSPropertyID* set, unsigned length);
void removeEquivalentProperties(const StylePropertySet*);
void removeEquivalentProperties(const CSSStyleDeclaration*);
void mergeAndOverrideOnConflict(const StylePropertySet*);
void clear();
void parseDeclaration(const String& styleDeclaration, StyleSheetContents* contextStyleSheet);
CSSStyleDeclaration* ensureCSSStyleDeclaration();
int findPropertyIndex(CSSPropertyID) const;
void traceAfterDispatch(Visitor*);
private:
explicit MutableStylePropertySet(CSSParserMode);
explicit MutableStylePropertySet(const StylePropertySet&);
MutableStylePropertySet(const CSSProperty* properties, unsigned count);
bool removeShorthandProperty(CSSPropertyID);
CSSProperty* findCSSPropertyWithID(CSSPropertyID);
OwnPtr<PropertySetCSSStyleDeclaration> m_cssomWrapper;
friend class StylePropertySet;
WillBeHeapVector<CSSProperty, 4> m_propertyVector;
};
DEFINE_TYPE_CASTS(MutableStylePropertySet, StylePropertySet, set, set->isMutable(), set.isMutable());
inline MutableStylePropertySet* toMutableStylePropertySet(const RefPtr<StylePropertySet>& set)
{
return toMutableStylePropertySet(set.get());
}
inline const StylePropertyMetadata& StylePropertySet::PropertyReference::propertyMetadata() const
{
if (m_propertySet.isMutable())
return toMutableStylePropertySet(m_propertySet).m_propertyVector.at(m_index).metadata();
return toImmutableStylePropertySet(m_propertySet).metadataArray()[m_index];
}
inline const CSSValue* StylePropertySet::PropertyReference::propertyValue() const
{
if (m_propertySet.isMutable())
return toMutableStylePropertySet(m_propertySet).m_propertyVector.at(m_index).value();
return toImmutableStylePropertySet(m_propertySet).valueArray()[m_index];
}
inline unsigned StylePropertySet::propertyCount() const
{
if (m_isMutable)
return toMutableStylePropertySet(this)->m_propertyVector.size();
return m_arraySize;
}
inline bool StylePropertySet::isEmpty() const
{
return !propertyCount();
}
#if !ENABLE(OILPAN)
inline void StylePropertySet::deref()
{
if (!derefBase())
return;
if (m_isMutable)
delete toMutableStylePropertySet(this);
else
delete toImmutableStylePropertySet(this);
}
#endif
inline int StylePropertySet::findPropertyIndex(CSSPropertyID propertyID) const
{
if (m_isMutable)
return toMutableStylePropertySet(this)->findPropertyIndex(propertyID);
return toImmutableStylePropertySet(this)->findPropertyIndex(propertyID);
}
}
#endif