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/*
* 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 StyleInvalidationAnalysis_h
#define StyleInvalidationAnalysis_h
#include "wtf/HashSet.h"
#include "wtf/Vector.h"
#include "wtf/text/StringImpl.h"
namespace WebCore {
class Document;
class Node;
class StyleSheetContents;
class StyleInvalidationAnalysis {
public:
StyleInvalidationAnalysis(const Vector<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
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