blob: fa05fd930e1269218bd9cd0169e6494f18c8af8d [file] [log] [blame]
/*
* Copyright (C) 2008, 2014 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 "CSSSelector.h"
#include <memory>
namespace WebCore {
class CSSParserSelector;
class CSSSelectorList {
WTF_MAKE_FAST_ALLOCATED;
public:
CSSSelectorList() : m_selectorArray(0) { }
CSSSelectorList(const CSSSelectorList&);
CSSSelectorList(CSSSelectorList&&);
~CSSSelectorList() { deleteSelectors(); }
void adoptSelectorVector(Vector<std::unique_ptr<CSSParserSelector>>& selectorVector);
void adoptSelectorArray(CSSSelector* selectors) { ASSERT(!m_selectorArray); m_selectorArray = selectors; }
bool isValid() const { return !!m_selectorArray; }
const CSSSelector* first() const { return m_selectorArray; }
static const CSSSelector* next(const CSSSelector*);
bool hasOneSelector() const { return m_selectorArray && !next(m_selectorArray); }
const CSSSelector* selectorAt(size_t index) const { return &m_selectorArray[index]; }
size_t indexOfNextSelectorAfter(size_t index) const
{
const CSSSelector* current = selectorAt(index);
current = next(current);
if (!current)
return notFound;
return current - m_selectorArray;
}
bool selectorsNeedNamespaceResolution();
bool hasInvalidSelector() const;
String selectorsText() const;
void buildSelectorsText(StringBuilder&) const;
unsigned componentCount() const;
unsigned listSize() const;
CSSSelectorList& operator=(CSSSelectorList&&);
private:
void deleteSelectors();
// End of a multipart selector is indicated by m_isLastInTagHistory bit in the last item.
// End of the array is indicated by m_isLastInSelectorList bit in the last item.
CSSSelector* m_selectorArray;
};
inline const CSSSelector* CSSSelectorList::next(const CSSSelector* current)
{
// Skip subparts of compound selectors.
while (!current->isLastInTagHistory())
current++;
return current->isLastInSelectorList() ? 0 : current + 1;
}
} // namespace WebCore