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/*
* Copyright (C) 2019-2023 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 "PseudoElementIdentifier.h"
#include "StyleExtractorState.h"
#include <span>
#include <wtf/RefPtr.h>
namespace WebCore {
class CSSPrimitiveValue;
class CSSValue;
class CSSValuePool;
class Element;
class MutableStyleProperties;
class Node;
class RenderElement;
class RenderStyle;
enum CSSPropertyID : uint16_t;
enum CSSValueID : uint16_t;
namespace CSS {
struct SerializationContext;
}
namespace Style {
DECLARE_ALLOCATOR_WITH_HEAP_IDENTIFIER(Extractor);
class Extractor {
public:
WTF_DEPRECATED_MAKE_FAST_ALLOCATED_WITH_HEAP_IDENTIFIER(Extractor, Extractor);
public:
Extractor(Node*, bool allowVisitedStyle = false);
Extractor(Node*, bool allowVisitedStyle, const std::optional<Style::PseudoElementIdentifier>&);
Extractor(Element*, bool allowVisitedStyle = false);
Extractor(Element*, bool allowVisitedStyle, const std::optional<Style::PseudoElementIdentifier>&);
enum class UpdateLayout : bool { No, Yes };
// Extract a CSSValue for the specified property.
RefPtr<CSSValue> propertyValue(CSSPropertyID, UpdateLayout = UpdateLayout::Yes, ExtractorState::PropertyValueType = ExtractorState::PropertyValueType::Resolved) const;
// Extract a serialized value for the specified property.
String propertyValueSerialization(CSSPropertyID, const CSS::SerializationContext&, UpdateLayout = UpdateLayout::Yes, ExtractorState::PropertyValueType = ExtractorState::PropertyValueType::Resolved) const;
// Extract a CSSValue for the specified property using the provided RenderStyle and RenderElement.
RefPtr<CSSValue> propertyValueInStyle(const RenderStyle&, CSSPropertyID, CSSValuePool&, const RenderElement* = nullptr, ExtractorState::PropertyValueType = ExtractorState::PropertyValueType::Resolved) const;
// Extract a serialized value for the specified property using the provided RenderStyle and RenderElement.
String propertyValueSerializationInStyle(const RenderStyle&, CSSPropertyID, const CSS::SerializationContext&, CSSValuePool&, const RenderElement* = nullptr, ExtractorState::PropertyValueType = ExtractorState::PropertyValueType::Resolved) const;
// Extract a CSSValue for the specified custom property.
RefPtr<CSSValue> customPropertyValue(const AtomString& propertyName) const;
// Extract a serialized value for the specified custom property.
String customPropertyValueSerialization(const AtomString& propertyName, const CSS::SerializationContext&) const;
// Helper methods for HTML editing.
Ref<MutableStyleProperties> copyProperties(std::span<const CSSPropertyID>) const;
Ref<MutableStyleProperties> copyProperties() const;
RefPtr<CSSPrimitiveValue> getFontSizeCSSValuePreferringKeyword() const;
bool useFixedFontDefaultSize() const;
bool propertyMatches(CSSPropertyID, const CSSValue*) const;
bool propertyMatches(CSSPropertyID, CSSValueID) const;
static bool updateStyleIfNeededForProperty(Element&, CSSPropertyID);
private:
// The renderer we should use for resolving layout-dependent properties.
const RenderElement* computeRenderer() const;
// The RenderStyle we should use for resolving non-layout-dependent properties.
const RenderStyle* computeStyle(CSSPropertyID, UpdateLayout, std::unique_ptr<RenderStyle>&) const;
// The RenderStyle we should use for resolving custom properties.
const RenderStyle* computeStyleForCustomProperty(std::unique_ptr<RenderStyle>&) const;
RefPtr<Element> m_element;
std::optional<Style::PseudoElementIdentifier> m_pseudoElementIdentifier;
bool m_allowVisitedStyle;
};
} // namespace Style
} // namespace WebCore
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