| // 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; |
| FX_DWORD dwActivity; |
| }; |
| |
| 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_CSSCacheItem*> m_Stylesheets; |
| IFX_MEMAllocator* m_pFixedStore; |
| int32_t m_iMaxItems; |
| }; |
| |
| 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; } |
| 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; |
| }; |
| 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_CSSTagCache* GetTopElement() const { return m_Stack.GetTopElement(); } |
| |
| protected: |
| CFDE_CSSTagStack m_Stack; |
| }; |
| |
| #endif // XFA_FDE_CSS_FDE_CSSCACHE_H_ |