1 /* 2 * Copyright (C) 2008 Apple Inc. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions 6 * are met: 7 * 1. Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * 2. Redistributions in binary form must reproduce the above copyright 10 * notice, this list of conditions and the following disclaimer in the 11 * documentation and/or other materials provided with the distribution. 12 * 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 24 */ 25 26 #ifndef CSSSelectorList_h 27 #define CSSSelectorList_h 28 29 #include "CSSSelector.h" 30 31 namespace WebCore { 32 33 class CSSParserSelector; 34 35 class CSSSelectorList { 36 WTF_MAKE_NONCOPYABLE(CSSSelectorList); WTF_MAKE_FAST_ALLOCATED; 37 public: 38 CSSSelectorList() : m_selectorArray(0) { } 39 ~CSSSelectorList(); 40 41 void adopt(CSSSelectorList& list); 42 void adoptSelectorVector(Vector<OwnPtr<CSSParserSelector> >& selectorVector); 43 44 CSSSelector* first() const { return m_selectorArray ? m_selectorArray : 0; } 45 static CSSSelector* next(CSSSelector*); 46 bool hasOneSelector() const { return m_selectorArray && !next(m_selectorArray); } 47 48 bool selectorsNeedNamespaceResolution(); 49 bool hasUnknownPseudoElements() const; 50 51 private: 52 void deleteSelectors(); 53 54 // End of a multipart selector is indicated by m_isLastInTagHistory bit in the last item. 55 // End of the array is indicated by m_isLastInSelectorList bit in the last item. 56 CSSSelector* m_selectorArray; 57 }; 58 59 inline CSSSelector* CSSSelectorList::next(CSSSelector* current) 60 { 61 // Skip subparts of compound selectors. 62 while (!current->isLastInTagHistory()) 63 current++; 64 return current->isLastInSelectorList() ? 0 : current + 1; 65 } 66 67 } // namespace WebCore 68 69 #endif // CSSSelectorList_h 70
