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/*
* Copyright (C) 2011, 2012 Google Inc. All rights reserved.
* Copyright (C) 2024 Samuel Weinig <sam@webkit.org>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
* OWNER OR 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 <WebCore/CSSCalcTree.h>
#include <wtf/RefCounted.h>
#include <wtf/Ref.h>
namespace WebCore {
namespace Style {
namespace Calculation {
class Value;
}
}
namespace CSS {
struct PropertyParserState;
struct Range;
enum class Category : uint8_t;
}
class CSSCalcSymbolTable;
class CSSCalcSymbolsAllowed;
class CSSParserTokenRange;
class CSSToLengthConversionData;
class RenderStyle;
struct CSSParserContext;
struct CSSPropertyParserOptions;
struct NoConversionDataRequiredToken;
enum CSSValueID : uint16_t;
enum class CSSUnitType : uint8_t;
namespace CSSCalc {
// Boxes a `CSSCalc::Tree` along with the `Style::Calculation::Category` and `CSS::Range` used to construct it.
class Value final : public RefCounted<Value> {
public:
static RefPtr<Value> parse(CSSParserTokenRange&, CSS::PropertyParserState&, CSS::Category, CSS::Range, CSSCalcSymbolsAllowed, CSSPropertyParserOptions);
static Ref<Value> create(const Style::Calculation::Value&, const RenderStyle&);
static Ref<Value> create(CSS::Category, CSS::Range, CSSCalc::Tree&&);
~Value();
// Creates a copy of the CSSCalc::Tree with non-canonical dimensions and any symbols present in the provided symbol table resolved.
Ref<Value> copySimplified(const CSSToLengthConversionData&) const;
Ref<Value> copySimplified(const CSSToLengthConversionData&, const CSSCalcSymbolTable&) const;
Ref<Value> copySimplified(NoConversionDataRequiredToken) const;
Ref<Value> copySimplified(NoConversionDataRequiredToken, const CSSCalcSymbolTable&) const;
CSS::Category category() const { return m_category; }
CSS::Range range() const { return m_range; }
CSSUnitType primitiveType() const;
// Returns whether the CSSCalc::Tree requires `CSSToLengthConversionData` to fully resolve.
bool requiresConversionData() const { return m_tree.requiresConversionData; };
double doubleValue(const CSSToLengthConversionData&) const;
double doubleValue(const CSSToLengthConversionData&, const CSSCalcSymbolTable&) const;
double doubleValue(NoConversionDataRequiredToken) const;
double doubleValue(NoConversionDataRequiredToken, const CSSCalcSymbolTable&) const;
double doubleValueDeprecated() const;
double computeLengthPx(const CSSToLengthConversionData&) const;
double computeLengthPx(const CSSToLengthConversionData&, const CSSCalcSymbolTable&) const;
Ref<Style::Calculation::Value> createCalculationValue(NoConversionDataRequiredToken) const;
Ref<Style::Calculation::Value> createCalculationValue(NoConversionDataRequiredToken, const CSSCalcSymbolTable&) const;
Ref<Style::Calculation::Value> createCalculationValue(const CSSToLengthConversionData&) const;
Ref<Style::Calculation::Value> createCalculationValue(const CSSToLengthConversionData&, const CSSCalcSymbolTable&) const;
void collectComputedStyleDependencies(ComputedStyleDependencies&) const;
String cssText(const CSS::SerializationContext&) const;
bool equals(const Value&) const;
void dump(TextStream&) const;
const CSSCalc::Tree& tree() const { return m_tree; }
private:
explicit Value(CSS::Category, CSS::Range, CSSCalc::Tree&&);
double clampToPermittedRange(double) const;
CSS::Category m_category;
CSS::Range m_range;
Tree m_tree;
};
TextStream& operator<<(TextStream&, const Value&);
} // namespace CSSCalc
} // namespace WebCore
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