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/**
* Copyright (C) 2023 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "StyleProperties.h"
namespace WebCore {
class PropertySetCSSStyleDeclaration;
class StyledElement;
struct CSSParserContext;
DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(MutableStyleProperties);
class MutableStyleProperties final : public StyleProperties {
WTF_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(MutableStyleProperties);
public:
inline void deref() const;
static Ref<MutableStyleProperties> create(CSSParserMode);
WEBCORE_EXPORT static Ref<MutableStyleProperties> create();
static Ref<MutableStyleProperties> create(Vector<CSSProperty>&&);
static Ref<MutableStyleProperties> createEmpty();
WEBCORE_EXPORT ~MutableStyleProperties();
unsigned propertyCount() const { return m_propertyVector.size(); }
bool isEmpty() const { return !propertyCount(); }
PropertyReference propertyAt(unsigned index) const;
Iterator<MutableStyleProperties> begin() const { return { *this }; }
static constexpr std::nullptr_t end() { return nullptr; }
unsigned size() const { return propertyCount(); }
PropertySetCSSStyleDeclaration* cssStyleDeclaration();
bool addParsedProperties(const ParsedPropertyVector&);
bool addParsedProperty(const CSSProperty&);
// These expand shorthand properties into multiple properties.
bool setProperty(CSSPropertyID, const String& value, bool important, CSSParserContext, bool* didFailParsing = nullptr);
bool setProperty(CSSPropertyID, const String& value, bool important = false, bool* didFailParsing = nullptr);
void setProperty(CSSPropertyID, RefPtr<CSSValue>&&, bool important = false);
// These do not. FIXME: This is too messy, we can do better.
bool setProperty(CSSPropertyID, CSSValueID identifier, bool important = false);
bool setProperty(const CSSProperty&, CSSProperty* slot = nullptr);
bool removeProperty(CSSPropertyID, String* returnText = nullptr);
bool removeProperties(std::span<const CSSPropertyID>);
void mergeAndOverrideOnConflict(const StyleProperties&);
void clear();
bool parseDeclaration(const String& styleDeclaration, CSSParserContext);
WEBCORE_EXPORT CSSStyleDeclaration& ensureCSSStyleDeclaration();
CSSStyleDeclaration& ensureInlineCSSStyleDeclaration(StyledElement& parentElement);
int findPropertyIndex(CSSPropertyID) const;
int findCustomPropertyIndex(StringView propertyName) const;
Vector<CSSProperty, 4> m_propertyVector;
// Methods for querying and altering CSS custom properties.
bool setCustomProperty(const String& propertyName, const String& value, bool important, CSSParserContext);
bool removeCustomProperty(const String& propertyName, String* returnText = nullptr);
private:
explicit MutableStyleProperties(CSSParserMode);
explicit MutableStyleProperties(const StyleProperties&);
MutableStyleProperties(Vector<CSSProperty>&&);
bool removeLonghandProperty(CSSPropertyID, String* returnText);
bool removeShorthandProperty(CSSPropertyID, String* returnText);
bool removePropertyAtIndex(int index, String* returnText);
CSSProperty* findCSSPropertyWithID(CSSPropertyID);
CSSProperty* findCustomCSSPropertyWithName(const String&);
std::unique_ptr<PropertySetCSSStyleDeclaration> m_cssomWrapper;
bool canUpdateInPlace(const CSSProperty&, CSSProperty* toReplace) const;
friend class StyleProperties;
};
inline void MutableStyleProperties::deref() const
{
if (derefBase())
delete this;
}
inline MutableStyleProperties::PropertyReference MutableStyleProperties::propertyAt(unsigned index) const
{
auto& property = m_propertyVector[index];
return PropertyReference(property.metadata(), property.value());
}
}
SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::MutableStyleProperties)
static bool isType(const WebCore::StyleProperties& properties) { return properties.isMutable(); }
SPECIALIZE_TYPE_TRAITS_END()
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