/* * Copyright (C) 2012 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 COMPUTER, 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 COMPUTER, 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 StyleSheetInvalidationAnalysis_h #define StyleSheetInvalidationAnalysis_h #include "heap/Handle.h" #include "wtf/HashSet.h" #include "wtf/Vector.h" #include "wtf/text/StringImpl.h" namespace WebCore { class Document; class Node; class StyleSheetContents; class StyleSheetInvalidationAnalysis { public: StyleSheetInvalidationAnalysis(const WillBeHeapVector<RawPtrWillBeMember<StyleSheetContents> >&); bool dirtiesAllStyle() const { return m_dirtiesAllStyle; } void invalidateStyle(Document&); private: void analyzeStyleSheet(StyleSheetContents*); bool m_dirtiesAllStyle; HashSet<StringImpl*> m_idScopes; HashSet<StringImpl*> m_classScopes; Vector<Node*, 8> m_scopingNodes; }; } #endif