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/*
* Copyright (C) 2008 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.
*/
#ifndef CSSSelectorList_h
#define CSSSelectorList_h
#include "core/css/CSSSelector.h"
namespace WebCore {
class CSSParserSelector;
class CSSSelectorList {
WTF_MAKE_FAST_ALLOCATED;
public:
CSSSelectorList() : m_selectorArray(0) { }
CSSSelectorList(const CSSSelectorList&);
~CSSSelectorList();
void adopt(CSSSelectorList& list);
void adoptSelectorVector(Vector<OwnPtr<CSSParserSelector> >& selectorVector);
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);
const CSSSelector* next = this->next(current);
if (!next)
return kNotFound;
return next - m_selectorArray;
}
bool selectorsNeedNamespaceResolution();
bool hasShadowDistributedAt(size_t index) const;
bool selectorCrossesTreeScopes(size_t index) const;
String selectorsText() const;
private:
unsigned length() const;
void deleteSelectors();
// Hide.
CSSSelectorList& operator=(const CSSSelectorList&);
// 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.
const CSSSelector* last = ¤t;
while (!last->isLastInTagHistory())
last++;
return last->isLastInSelectorList() ? 0 : last + 1;
}
} // namespace WebCore
#endif // CSSSelectorList_h
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