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/*
* Copyright (C) 2004 Zack Rusin <zack@kde.org>
* Copyright (C) 2004-2019 Apple Inc. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
* 02110-1301 USA
*/
#pragma once
#include "CSSStyleDeclaration.h"
#include "ComputedStyleExtractor.h"
#include "PseudoElementIdentifier.h"
#include "RenderStyleConstants.h"
#include <wtf/FixedVector.h>
#include <wtf/RefPtr.h>
#include <wtf/TZoneMalloc.h>
#include <wtf/text/WTFString.h>
namespace WebCore {
class Element;
class MutableStyleProperties;
class CSSComputedStyleDeclaration final : public CSSStyleDeclaration, public RefCounted<CSSComputedStyleDeclaration> {
WTF_MAKE_TZONE_OR_ISO_ALLOCATED_EXPORT(CSSComputedStyleDeclaration, WEBCORE_EXPORT);
public:
void ref() const final { RefCounted::ref(); }
void deref() const final { RefCounted::deref(); }
enum class AllowVisited : bool { No, Yes };
WEBCORE_EXPORT static Ref<CSSComputedStyleDeclaration> create(Element&, AllowVisited);
static Ref<CSSComputedStyleDeclaration> create(Element&, const std::optional<Style::PseudoElementIdentifier>&);
static Ref<CSSComputedStyleDeclaration> createEmpty(Element&);
WEBCORE_EXPORT virtual ~CSSComputedStyleDeclaration();
String getPropertyValue(CSSPropertyID) const;
private:
enum class IsEmpty : bool { No, Yes };
CSSComputedStyleDeclaration(Element&, AllowVisited);
CSSComputedStyleDeclaration(Element&, IsEmpty);
CSSComputedStyleDeclaration(Element&, const std::optional<Style::PseudoElementIdentifier>&);
// CSSOM functions. Don't make these public.
CSSRule* parentRule() const final;
CSSRule* cssRules() const final;
unsigned length() const final;
String item(unsigned index) const final;
RefPtr<DeprecatedCSSOMValue> getPropertyCSSValue(const String& propertyName) final;
String getPropertyValue(const String& propertyName) final;
String getPropertyPriority(const String& propertyName) final;
String getPropertyShorthand(const String& propertyName) final;
bool isPropertyImplicit(const String& propertyName) final;
ExceptionOr<void> setProperty(const String& propertyName, const String& value, const String& priority) final;
ExceptionOr<String> removeProperty(const String& propertyName) final;
String cssText() const final;
ExceptionOr<void> setCssText(const String&) final;
String getPropertyValueInternal(CSSPropertyID) final;
ExceptionOr<void> setPropertyInternal(CSSPropertyID, const String& value, IsImportant) final;
Ref<MutableStyleProperties> copyProperties() const final;
RefPtr<CSSValue> getPropertyCSSValue(CSSPropertyID, ComputedStyleExtractor::UpdateLayout = ComputedStyleExtractor::UpdateLayout::Yes) const;
const Settings* settings() const final;
const FixedVector<CSSPropertyID>& exposedComputedCSSPropertyIDs() const;
mutable Ref<Element> m_element;
std::optional<Style::PseudoElementIdentifier> m_pseudoElementIdentifier { std::nullopt };
bool m_isEmpty { false };
bool m_allowVisitedStyle { false };
};
} // namespace WebCore
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