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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"
#include "xfa/fgas/crt/fgas_memory.h"
class FDE_CSSCacheItem : public CFX_Target {
public:
explicit FDE_CSSCacheItem(IFDE_CSSStyleSheet* p);
~FDE_CSSCacheItem();
IFDE_CSSStyleSheet* pStylesheet;
uint32_t dwActivity;
};
class FDE_CSSTagCache : public CFX_Target {
public:
FDE_CSSTagCache(FDE_CSSTagCache* parent, IFDE_CSSTagProvider* tag);
FDE_CSSTagCache(const FDE_CSSTagCache& it);
FDE_CSSTagCache* GetParent() const { return pParent; }
IFDE_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;
}
protected:
IFDE_CSSTagProvider* pTag;
FDE_CSSTagCache* pParent;
uint32_t dwIDHash;
uint32_t dwTagHash;
int32_t iClassIndex;
CFDE_DWordArray dwClassHashs;
};
typedef CFX_ObjectStackTemplate<FDE_CSSTagCache> CFDE_CSSTagStack;
class CFDE_CSSAccelerator : public CFX_Target {
public:
void OnEnterTag(IFDE_CSSTagProvider* pTag);
void OnLeaveTag(IFDE_CSSTagProvider* pTag);
void Clear() { m_Stack.RemoveAll(); }
FDE_CSSTagCache* GetTopElement() const { return m_Stack.GetTopElement(); }
protected:
CFDE_CSSTagStack m_Stack;
};
#endif // XFA_FDE_CSS_FDE_CSSCACHE_H_
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