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/*
* (C) 1999-2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006 Apple Inc. All rights reserved.
* Copyright (C) 2013 Intel Corporation. All rights reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public License
* along with this library; see the file COPYING.LIB. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#pragma once
#include "CSSPropertyNames.h"
#include "CSSValue.h"
#include "IsImportant.h"
#include "WritingMode.h"
#include <wtf/BitSet.h>
#include <wtf/RefPtr.h>
namespace WebCore {
class CSSValueList;
class Settings;
enum class IsImplicit : bool { No, Yes };
struct StylePropertyMetadata {
StylePropertyMetadata(CSSPropertyID propertyID, bool isSetFromShorthand, int indexInShorthandsVector, IsImportant important, IsImplicit implicit)
: m_propertyID(propertyID)
, m_isSetFromShorthand(isSetFromShorthand)
, m_indexInShorthandsVector(indexInShorthandsVector)
, m_important(important == IsImportant::Yes)
, m_implicit(implicit == IsImplicit::Yes)
{
ASSERT(propertyID != CSSPropertyInvalid);
ASSERT_WITH_MESSAGE(propertyID < firstShorthandProperty, "unexpected property: %d", propertyID);
}
CSSPropertyID shorthandID() const;
friend bool operator==(const StylePropertyMetadata&, const StylePropertyMetadata&) = default;
unsigned m_propertyID : 10;
unsigned m_isSetFromShorthand : 1;
unsigned m_indexInShorthandsVector : 2; // If this property was set as part of an ambiguous shorthand, gives the index in the shorthands vector.
unsigned m_important : 1;
unsigned m_implicit : 1; // Whether or not the property was set implicitly as the result of a shorthand.
// 1 bit available
};
class CSSProperty {
public:
CSSProperty(CSSPropertyID propertyID, Ref<CSSValue>&& value, IsImportant important = IsImportant::No, bool isSetFromShorthand = false, int indexInShorthandsVector = 0, IsImplicit implicit = IsImplicit::No)
: m_metadata(propertyID, isSetFromShorthand, indexInShorthandsVector, important, implicit)
, m_value(WTFMove(value))
{
}
CSSPropertyID id() const { return static_cast<CSSPropertyID>(m_metadata.m_propertyID); }
bool isSetFromShorthand() const { return m_metadata.m_isSetFromShorthand; };
CSSPropertyID shorthandID() const { return m_metadata.shorthandID(); };
bool isImportant() const { return m_metadata.m_important; }
CSSValue* value() const { return m_value.ptr(); }
Ref<CSSValue> protectedValue() const { return m_value; }
static CSSPropertyID resolveDirectionAwareProperty(CSSPropertyID, WritingMode);
static CSSPropertyID unresolvePhysicalProperty(CSSPropertyID, WritingMode);
static bool isInheritedProperty(CSSPropertyID);
static Vector<String> aliasesForProperty(CSSPropertyID);
static bool isDirectionAwareProperty(CSSPropertyID propertyID) { return isLogicalPropertyGroupLogicalProperty(propertyID); }
static bool isInLogicalPropertyGroup(CSSPropertyID);
static bool areInSameLogicalPropertyGroupWithDifferentMappingLogic(CSSPropertyID, CSSPropertyID);
static bool isDescriptorOnly(CSSPropertyID);
static char16_t listValuedPropertySeparator(CSSPropertyID);
static bool isListValuedProperty(CSSPropertyID propertyID) { return !!listValuedPropertySeparator(propertyID) || propertyID == CSSPropertyCustom; }
static bool allowsNumberOrIntegerInput(CSSPropertyID);
static bool animationUsesNonAdditiveOrCumulativeInterpolation(CSSPropertyID);
static bool animationUsesNonNormalizedDiscreteInterpolation(CSSPropertyID);
static bool animationIsAccelerated(CSSPropertyID, const Settings&);
static std::span<const CSSPropertyID> allAcceleratedAnimationProperties(const Settings&);
// Properties where <color> productions should accept <quirky-color> (e.g. hashless hex color quirk).
// https://drafts.csswg.org/css-color-4/#quirky-color
// https://quirks.spec.whatwg.org/#the-hashless-hex-color-quirk
static bool acceptsQuirkyColor(CSSPropertyID);
// Properties where <length> productions should accept <quirky-length> (e.g. unitless length quirk).
// https://drafts.csswg.org/css-values-4/#deprecated-quirky-length
// https://quirks.spec.whatwg.org/#the-unitless-length-quirk
static bool acceptsQuirkyLength(CSSPropertyID);
// Properties where <angle> productions should accept <quirky-angle> (e.g. unitless angle quirk).
// FIXME: This is not specified anywhere and other engines don't implement the properties where this is used. We should remove this quirk.
static bool acceptsQuirkyAngle(CSSPropertyID);
// Logical Property Groups.
// NOTE: These return true if the CSSPropertyID is member of the named logical
// property group or is the shorthand of a member of the logical property group.
static bool isBorderColorProperty(CSSPropertyID);
static bool isBorderRadiusProperty(CSSPropertyID);
static bool isBorderStyleProperty(CSSPropertyID);
static bool isBorderWidthProperty(CSSPropertyID);
static bool isContainIntrinsicSizeProperty(CSSPropertyID);
static bool isCornerShapeProperty(CSSPropertyID);
static bool isInsetProperty(CSSPropertyID);
static bool isMarginProperty(CSSPropertyID);
static bool isMaxSizeProperty(CSSPropertyID);
static bool isMinSizeProperty(CSSPropertyID);
static bool isOverflowProperty(CSSPropertyID);
static bool isOverscrollBehaviorProperty(CSSPropertyID);
static bool isPaddingProperty(CSSPropertyID);
static bool isScrollMarginProperty(CSSPropertyID);
static bool isScrollPaddingProperty(CSSPropertyID);
static bool isSizeProperty(CSSPropertyID);
// Check if a property is a sizing property, as defined in:
// https://drafts.csswg.org/css-sizing-3/#sizing-property
static bool isSizingProperty(CSSPropertyID);
static bool disablesNativeAppearance(CSSPropertyID);
const StylePropertyMetadata& metadata() const { return m_metadata; }
static bool isColorProperty(CSSPropertyID propertyId)
{
return colorProperties.get(propertyId);
}
static const WEBCORE_EXPORT WTF::BitSet<cssPropertyIDEnumValueCount> colorProperties;
static const WEBCORE_EXPORT WTF::BitSet<cssPropertyIDEnumValueCount> physicalProperties;
bool operator==(const CSSProperty& other) const
{
if (!(m_metadata == other.m_metadata))
return false;
return m_value->equals(other.m_value);
}
private:
StylePropertyMetadata m_metadata;
Ref<CSSValue> m_value;
};
typedef Vector<CSSProperty, 256> ParsedPropertyVector;
} // namespace WebCore
namespace WTF {
template <> struct VectorTraits<WebCore::CSSProperty> : VectorTraitsBase<false, WebCore::CSSProperty> {
static const bool canInitializeWithMemset = true;
static const bool canMoveWithMemcpy = true;
};
}
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