| /* |
| * Copyright (C) 2018 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 |
| |
| #if ENABLE(CSS_TYPED_OM) |
| |
| #include "CSSNumericType.h" |
| #include "CSSStyleValue.h" |
| #include <variant> |
| #include <wtf/FixedVector.h> |
| |
| namespace WebCore { |
| |
| class CSSNumericValue; |
| class CSSUnitValue; |
| class CSSMathSum; |
| |
| template<typename> class ExceptionOr; |
| |
| using CSSNumberish = std::variant<double, RefPtr<CSSNumericValue>>; |
| |
| class CSSNumericValue : public CSSStyleValue { |
| WTF_MAKE_ISO_ALLOCATED(CSSNumericValue); |
| public: |
| |
| ExceptionOr<Ref<CSSNumericValue>> add(FixedVector<CSSNumberish>&&); |
| ExceptionOr<Ref<CSSNumericValue>> sub(FixedVector<CSSNumberish>&&); |
| ExceptionOr<Ref<CSSNumericValue>> mul(FixedVector<CSSNumberish>&&); |
| ExceptionOr<Ref<CSSNumericValue>> div(FixedVector<CSSNumberish>&&); |
| ExceptionOr<Ref<CSSNumericValue>> min(FixedVector<CSSNumberish>&&); |
| ExceptionOr<Ref<CSSNumericValue>> max(FixedVector<CSSNumberish>&&); |
| |
| bool equals(FixedVector<CSSNumberish>&&); |
| |
| ExceptionOr<Ref<CSSUnitValue>> to(String&&); |
| ExceptionOr<Ref<CSSUnitValue>> to(CSSUnitType); |
| ExceptionOr<Ref<CSSMathSum>> toSum(FixedVector<String>&&); |
| |
| const CSSNumericType& type() const { return m_type; } |
| |
| static ExceptionOr<Ref<CSSNumericValue>> parse(String&&); |
| static Ref<CSSNumericValue> rectifyNumberish(CSSNumberish&&); |
| |
| // https://drafts.css-houdini.org/css-typed-om/#sum-value-value |
| using UnitMap = HashMap<CSSUnitType, int, WTF::IntHash<CSSUnitType>, WTF::StrongEnumHashTraits<CSSUnitType>>; |
| struct Addend { |
| double value; |
| UnitMap units; |
| }; |
| using SumValue = Vector<Addend>; |
| virtual std::optional<SumValue> toSumValue() const = 0; |
| virtual bool equals(const CSSNumericValue&) const = 0; |
| |
| protected: |
| ExceptionOr<Ref<CSSNumericValue>> addInternal(Vector<Ref<CSSNumericValue>>&&); |
| ExceptionOr<Ref<CSSNumericValue>> multiplyInternal(Vector<Ref<CSSNumericValue>>&&); |
| template<typename T> Vector<Ref<CSSNumericValue>> prependItemsOfTypeOrThis(Vector<Ref<CSSNumericValue>>&&); |
| |
| CSSNumericValue(CSSNumericType type = { }) |
| : m_type(WTFMove(type)) { } |
| |
| CSSNumericType m_type; |
| }; |
| |
| } // namespace WebCore |
| |
| SPECIALIZE_TYPE_TRAITS_BEGIN(WebCore::CSSNumericValue) |
| static bool isType(const WebCore::CSSStyleValue& styleValue) { return isCSSNumericValue(styleValue.getType()); } |
| SPECIALIZE_TYPE_TRAITS_END() |
| |
| #endif |