/* * 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