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CSSCustomPropertyValue.h
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CSSCustomPropertyValue.h
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/*
* Copyright (C) 2015-2021 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. ``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
* 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 "CSSValue.h"
#include "CSSVariableData.h"
#include "CSSVariableReferenceValue.h"
#include "Length.h"
#include "StyleColor.h"
#include "StyleImage.h"
#include "TransformOperation.h"
#include <wtf/PointerComparison.h>
#include <wtf/URL.h>
namespace WebCore {
class CSSParserToken;
class CSSCustomPropertyValue final : public CSSValue {
public:
struct NumericSyntaxValue {
double value;
CSSUnitType unitType;
bool operator==(const NumericSyntaxValue& other) const { return value == other.value && unitType == other.unitType; }
bool operator!=(const NumericSyntaxValue& other) const { return !(this == &other); }
};
struct TransformSyntaxValue {
RefPtr<TransformOperation> transform;
bool operator==(const TransformSyntaxValue& other) const { return arePointingToEqualData(transform, other.transform); }
bool operator!=(const TransformSyntaxValue& other) const { return !(this == &other); }
};
using SyntaxValue = std::variant<Length, NumericSyntaxValue, StyleColor, RefPtr<StyleImage>, URL, String, TransformSyntaxValue>;
struct SyntaxValueList {
Vector<SyntaxValue> values;
ValueSeparator separator;
bool operator==(const SyntaxValueList& other) const { return values == other.values && separator == other.separator; }
bool operator!=(const SyntaxValueList& other) const { return !(this == &other); }
};
using VariantValue = std::variant<std::monostate, Ref<CSSVariableReferenceValue>, CSSValueID, Ref<CSSVariableData>, SyntaxValue, SyntaxValueList>;
static Ref<CSSCustomPropertyValue> createEmpty(const AtomString& name);
static Ref<CSSCustomPropertyValue> createUnresolved(const AtomString& name, Ref<CSSVariableReferenceValue>&& value)
{
return adoptRef(*new CSSCustomPropertyValue(name, VariantValue { std::in_place_type<Ref<CSSVariableReferenceValue>>, WTFMove(value) }));
}
static Ref<CSSCustomPropertyValue> createUnresolved(const AtomString& name, CSSValueID value)
{
return adoptRef(*new CSSCustomPropertyValue(name, { value }));
}
static Ref<CSSCustomPropertyValue> createWithID(const AtomString& name, CSSValueID);
static Ref<CSSCustomPropertyValue> createSyntaxAll(const AtomString& name, Ref<CSSVariableData>&& value)
{
return adoptRef(*new CSSCustomPropertyValue(name, VariantValue { std::in_place_type<Ref<CSSVariableData>>, WTFMove(value) }));
}
static Ref<CSSCustomPropertyValue> createForSyntaxValue(const AtomString& name, SyntaxValue&& syntaxValue)
{
return adoptRef(*new CSSCustomPropertyValue(name, VariantValue { WTFMove(syntaxValue) }));
}
static Ref<CSSCustomPropertyValue> createForSyntaxValueList(const AtomString& name, SyntaxValueList&& syntaxValueList)
{
return adoptRef(*new CSSCustomPropertyValue(name, VariantValue { WTFMove(syntaxValueList) }));
}
static Ref<CSSCustomPropertyValue> create(const CSSCustomPropertyValue& other)
{
return adoptRef(*new CSSCustomPropertyValue(other));
}
String customCSSText() const;
const AtomString& name() const { return m_name; }
bool isResolved() const { return !std::holds_alternative<Ref<CSSVariableReferenceValue>>(m_value); }
bool isUnset() const { return std::holds_alternative<CSSValueID>(m_value) && std::get<CSSValueID>(m_value) == CSSValueUnset; }
bool isInvalid() const { return std::holds_alternative<CSSValueID>(m_value) && std::get<CSSValueID>(m_value) == CSSValueInvalid; }
bool isCurrentColor() const;
bool containsCSSWideKeyword() const;
const VariantValue& value() const { return m_value; }
Vector<CSSParserToken> tokens() const;
bool equals(const CSSCustomPropertyValue&) const;
Ref<const CSSVariableData> asVariableData() const;
private:
CSSCustomPropertyValue(const AtomString& name, VariantValue&& value)
: CSSValue(CustomPropertyClass)
, m_name(name)
, m_value(WTFMove(value))
{
}
CSSCustomPropertyValue(const CSSCustomPropertyValue& other)
: CSSValue(CustomPropertyClass)
, m_name(other.m_name)
, m_value(other.m_value)
, m_stringValue(other.m_stringValue)
{
}
const AtomString m_name;
const VariantValue m_value;
mutable String m_stringValue;
};
} // namespace WebCore
SPECIALIZE_TYPE_TRAITS_CSS_VALUE(CSSCustomPropertyValue, isCustomPropertyValue())