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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef XFA_FDE_CSS_FDE_CSSCACHE_H_
#define XFA_FDE_CSS_FDE_CSSCACHE_H_
#include <map>
#include "xfa/fde/css/fde_css.h"
class FDE_CSSTagCache {
public:
FDE_CSSTagCache(FDE_CSSTagCache* parent, CXFA_CSSTagProvider* tag);
FDE_CSSTagCache(const FDE_CSSTagCache& it);
~FDE_CSSTagCache();
FDE_CSSTagCache* GetParent() const { return pParent; }
CXFA_CSSTagProvider* GetTag() const { return pTag; }
uint32_t HashID() const { return dwIDHash; }
uint32_t HashTag() const { return dwTagHash; }
int32_t CountHashClass() const { return dwClassHashs.GetSize(); }
void SetClassIndex(int32_t index) { iClassIndex = index; }
uint32_t HashClass() const {
return iClassIndex < dwClassHashs.GetSize()
? dwClassHashs.GetAt(iClassIndex)
: 0;
}
private:
CXFA_CSSTagProvider* pTag;
FDE_CSSTagCache* pParent;
uint32_t dwIDHash;
uint32_t dwTagHash;
int32_t iClassIndex;
CFX_BaseArrayTemplate<uint32_t> dwClassHashs;
};
class CFDE_CSSAccelerator {
public:
CFDE_CSSAccelerator();
~CFDE_CSSAccelerator();
void OnEnterTag(CXFA_CSSTagProvider* pTag);
void OnLeaveTag(CXFA_CSSTagProvider* pTag);
void Clear() { m_Stack.RemoveAll(false); }
FDE_CSSTagCache* GetTopElement() const { return m_Stack.GetTopElement(); }
private:
CFX_ObjectStackTemplate<FDE_CSSTagCache> m_Stack;
};
#endif // XFA_FDE_CSS_FDE_CSSCACHE_H_
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