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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 _FDE_CSSCACHE
#define _FDE_CSSCACHE
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_ThreadLock, public CFX_Target
{
public:
CFDE_CSSStyleSheetCache();
~CFDE_CSSStyleSheetCache();
virtual void Release()
{
FDE_Delete this;
}
virtual void SetMaxItems(FX_INT32 iMaxCount = 5)
{
FXSYS_assert(iMaxCount >= 3);
m_iMaxItems = iMaxCount;
}
virtual void AddStyleSheet(FX_BSTR szKey, IFDE_CSSStyleSheet *pStyleSheet);
virtual IFDE_CSSStyleSheet* GetStyleSheet(FX_BSTR szKey) const;
virtual void RemoveStyleSheet(FX_BSTR szKey);
protected:
void RemoveLowestActivityItem();
CFX_MapByteStringToPtr m_Stylesheets;
IFX_MEMAllocator *m_pFixedStore;
FX_INT32 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;
}
FX_INT32 CountHashClass() const
{
return dwClassHashs.GetSize();
}
void SetClassIndex(FX_INT32 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;
FX_INT32 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
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