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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_SRC_FDP_SRC_CSS_FDE_CSSCACHE_H_
#define XFA_SRC_FDP_SRC_CSS_FDE_CSSCACHE_H_
#include "xfa/src/fdp/include/fde_css.h"
#include "xfa/src/fgas/include/fx_mem.h"
typedef struct _FDE_CSSCACHEITEM : public CFX_Target {
_FDE_CSSCACHEITEM(IFDE_CSSStyleSheet* p);
~_FDE_CSSCACHEITEM();
IFDE_CSSStyleSheet* pStylesheet;
FX_DWORD dwActivity;
} FDE_CSSCACHEITEM, *FDE_LPCSSCACHEITEM;
class CFDE_CSSStyleSheetCache : public IFDE_CSSStyleSheetCache,
public CFX_Target {
public:
CFDE_CSSStyleSheetCache();
~CFDE_CSSStyleSheetCache();
virtual void Release() { delete this; }
virtual void SetMaxItems(int32_t iMaxCount = 5) {
FXSYS_assert(iMaxCount >= 3);
m_iMaxItems = iMaxCount;
}
virtual void AddStyleSheet(const CFX_ByteStringC& szKey,
IFDE_CSSStyleSheet* pStyleSheet);
virtual IFDE_CSSStyleSheet* GetStyleSheet(const CFX_ByteStringC& szKey) const;
virtual void RemoveStyleSheet(const CFX_ByteStringC& szKey);
protected:
void RemoveLowestActivityItem();
std::map<CFX_ByteString, FDE_LPCSSCACHEITEM> m_Stylesheets;
IFX_MEMAllocator* m_pFixedStore;
int32_t m_iMaxItems;
};
typedef struct _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; }
FX_DWORD HashID() const { return dwIDHash; }
FX_DWORD HashTag() const { return dwTagHash; }
int32_t CountHashClass() const { return dwClassHashs.GetSize(); }
void SetClassIndex(int32_t index) { iClassIndex = index; }
FX_DWORD HashClass() const {
return iClassIndex < dwClassHashs.GetSize()
? dwClassHashs.GetAt(iClassIndex)
: 0;
}
protected:
IFDE_CSSTagProvider* pTag;
_FDE_CSSTAGCACHE* pParent;
FX_DWORD dwIDHash;
FX_DWORD dwTagHash;
int32_t iClassIndex;
CFDE_DWordArray dwClassHashs;
} FDE_CSSTAGCACHE, *FDE_LPCSSTAGCACHE;
typedef CFX_ObjectStackTemplate<FDE_CSSTAGCACHE> CFDE_CSSTagStack;
class CFDE_CSSAccelerator : public IFDE_CSSAccelerator, public CFX_Target {
public:
virtual void OnEnterTag(IFDE_CSSTagProvider* pTag);
virtual void OnLeaveTag(IFDE_CSSTagProvider* pTag);
void Clear() { m_Stack.RemoveAll(); }
FDE_LPCSSTAGCACHE GetTopElement() const { return m_Stack.GetTopElement(); }
protected:
CFDE_CSSTagStack m_Stack;
};
#endif // XFA_SRC_FDP_SRC_CSS_FDE_CSSCACHE_H_
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