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/*
* Copyright (C) 2003 Lars Knoll (knoll@kde.org)
* Copyright (C) 2004, 2005, 2006, 2008, 2009, 2010, 2014 Apple Inc. 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 "CSSSelector.h"
#include <wtf/text/AtomStringHash.h>
namespace WebCore {
enum class CSSParserSelectorCombinator {
Child,
DescendantSpace,
DirectAdjacent,
IndirectAdjacent
};
class CSSParserSelector {
WTF_MAKE_FAST_ALLOCATED;
public:
static std::unique_ptr<CSSParserSelector> parsePseudoClassSelector(StringView);
static std::unique_ptr<CSSParserSelector> parsePseudoElementSelector(StringView);
static std::unique_ptr<CSSParserSelector> parsePagePseudoSelector(StringView);
CSSParserSelector();
// Recursively copy the selector chain.
CSSParserSelector(const CSSSelector&);
explicit CSSParserSelector(const QualifiedName&);
~CSSParserSelector();
std::unique_ptr<CSSSelector> releaseSelector() { return WTFMove(m_selector); }
CSSSelector* selector() { return m_selector.get(); }
void setValue(const AtomString& value, bool matchLowerCase = false) { m_selector->setValue(value, matchLowerCase); }
void setAttribute(const QualifiedName& value, CSSSelector::AttributeMatchType type) { m_selector->setAttribute(value, type); }
void setArgument(const AtomString& value) { m_selector->setArgument(value); }
void setNth(int a, int b) { m_selector->setNth(a, b); }
void setMatch(CSSSelector::Match value) { m_selector->setMatch(value); }
void setRelation(CSSSelector::RelationType value) { m_selector->setRelation(value); }
void setForPage() { m_selector->setForPage(); }
CSSSelector::Match match() const { return m_selector->match(); }
CSSSelector::PseudoElementType pseudoElementType() const { return m_selector->pseudoElementType(); }
const CSSSelectorList* selectorList() const { return m_selector->selectorList(); }
void setPseudoElementType(CSSSelector::PseudoElementType type) { m_selector->setPseudoElementType(type); }
void setPseudoClassType(CSSSelector::PseudoClassType type) { m_selector->setPseudoClassType(type); }
void adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>&&);
void setArgumentList(FixedVector<PossiblyQuotedIdentifier>);
void setSelectorList(std::unique_ptr<CSSSelectorList>);
CSSSelector::PseudoClassType pseudoClassType() const { return m_selector->pseudoClassType(); }
bool isCustomPseudoElement() const { return m_selector->isCustomPseudoElement(); }
bool isPseudoElementCueFunction() const;
bool matchesPseudoElement() const;
bool isHostPseudoSelector() const;
// FIXME-NEWPARSER: "slotted" was removed here for now, since it leads to a combinator
// connection of ShadowDescendant, and the current shadow DOM code doesn't expect this. When
// we do fix this issue, make sure to patch the namespace prependTag code to remove the slotted
// special case, since it will be covered by this function once again.
bool needsImplicitShadowCombinatorForMatching() const;
CSSParserSelector* tagHistory() const { return m_tagHistory.get(); }
CSSParserSelector* leftmostSimpleSelector();
void setTagHistory(std::unique_ptr<CSSParserSelector> selector) { m_tagHistory = WTFMove(selector); }
void clearTagHistory() { m_tagHistory.reset(); }
void insertTagHistory(CSSSelector::RelationType before, std::unique_ptr<CSSParserSelector>, CSSSelector::RelationType after);
void appendTagHistory(CSSSelector::RelationType, std::unique_ptr<CSSParserSelector>);
void appendTagHistory(CSSParserSelectorCombinator, std::unique_ptr<CSSParserSelector>);
void prependTagSelector(const QualifiedName&, bool tagIsForNamespaceRule = false);
std::unique_ptr<CSSParserSelector> releaseTagHistory();
private:
std::unique_ptr<CSSSelector> m_selector;
std::unique_ptr<CSSParserSelector> m_tagHistory;
};
inline bool CSSParserSelector::needsImplicitShadowCombinatorForMatching() const
{
return match() == CSSSelector::Match::PseudoElement
&& (pseudoElementType() == CSSSelector::PseudoElementWebKitCustom
#if ENABLE(VIDEO)
|| pseudoElementType() == CSSSelector::PseudoElementCue
#endif
|| pseudoElementType() == CSSSelector::PseudoElementPart
|| pseudoElementType() == CSSSelector::PseudoElementSlotted
|| pseudoElementType() == CSSSelector::PseudoElementWebKitCustomLegacyPrefixed);
}
inline bool CSSParserSelector::isPseudoElementCueFunction() const
{
#if ENABLE(VIDEO)
return m_selector->match() == CSSSelector::Match::PseudoElement && m_selector->pseudoElementType() == CSSSelector::PseudoElementCue;
#else
return false;
#endif
}
}
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