// 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_CSSSTYLESHEET_H_ #define XFA_FDE_CSS_FDE_CSSSTYLESHEET_H_ #include <unordered_map> #include "core/fxcrt/include/fx_ext.h" #include "xfa/fde/css/fde_cssdeclaration.h" class CFDE_CSSSyntaxParser; class CFDE_CSSSelector : public CFX_Target { public: CFDE_CSSSelector(FDE_CSSSELECTORTYPE eType, const FX_WCHAR* psz, int32_t iLen, bool bIgnoreCase) : m_eType(eType), m_dwHash(FX_HashCode_GetW(CFX_WideStringC(psz, iLen), bIgnoreCase)), m_pNext(nullptr) {} virtual FDE_CSSSELECTORTYPE GetType() const { return m_eType; } virtual uint32_t GetNameHash() const { return m_dwHash; } virtual CFDE_CSSSelector* GetNextSelector() const { return m_pNext; } static CFDE_CSSSelector* FromString(IFX_MemoryAllocator* pStaticStore, const FX_WCHAR* psz, int32_t iLen); void SetNext(CFDE_CSSSelector* pNext) { m_pNext = pNext; } protected: static CFDE_CSSSelector* ParseSelector(IFX_MemoryAllocator* pStaticStore, const FX_WCHAR* psz, int32_t& iOff, int32_t iLen, FDE_CSSSELECTORTYPE eType); void SetType(FDE_CSSSELECTORTYPE eType) { m_eType = eType; } FDE_CSSSELECTORTYPE m_eType; uint32_t m_dwHash; CFDE_CSSSelector* m_pNext; }; typedef CFX_ArrayTemplate<CFDE_CSSSelector*> CFDE_CSSSelectorArray; class CFDE_CSSStyleRule : public IFDE_CSSStyleRule, public CFX_Target { public: CFDE_CSSStyleRule() : m_ppSelector(nullptr), m_iSelectors(0) {} int32_t CountSelectorLists() const override { return m_iSelectors; } CFDE_CSSSelector* GetSelectorList(int32_t index) const override { return m_ppSelector[index]; } CFDE_CSSDeclaration* GetDeclaration() override { return &m_Declaration; } CFDE_CSSDeclaration& GetDeclImp() { return m_Declaration; } void SetSelector(IFX_MemoryAllocator* pStaticStore, const CFDE_CSSSelectorArray& list); protected: CFDE_CSSDeclaration m_Declaration; CFDE_CSSSelector** m_ppSelector; int32_t m_iSelectors; }; class CFDE_CSSMediaRule : public IFDE_CSSMediaRule, public CFX_Target { public: CFDE_CSSMediaRule(uint32_t dwMediaList) : m_dwMediaList(dwMediaList) {} ~CFDE_CSSMediaRule(); virtual uint32_t GetMediaList() const { return m_dwMediaList; } virtual int32_t CountRules() const { return m_RuleArray.GetSize(); } virtual IFDE_CSSRule* GetRule(int32_t index) { return m_RuleArray.GetAt(index); } CFDE_CSSRuleArray& GetArray() { return m_RuleArray; } protected: uint32_t m_dwMediaList; CFDE_CSSRuleArray m_RuleArray; }; class CFDE_CSSFontFaceRule : public IFDE_CSSFontFaceRule, public CFX_Target { public: CFDE_CSSDeclaration* GetDeclaration() override { return &m_Declaration; } CFDE_CSSDeclaration& GetDeclImp() { return m_Declaration; } protected: CFDE_CSSDeclaration m_Declaration; }; #define FDE_CSSSWITCHDEFAULTS() \ case FDE_CSSSYNTAXSTATUS_EOS: \ return FDE_CSSSYNTAXSTATUS_EOS; \ case FDE_CSSSYNTAXSTATUS_Error: \ default: \ return FDE_CSSSYNTAXSTATUS_Error; class CFDE_CSSStyleSheet : public IFDE_CSSStyleSheet, public CFX_Target { public: CFDE_CSSStyleSheet(uint32_t dwMediaList); ~CFDE_CSSStyleSheet() override; // IFX_Retainable: uint32_t Retain() override; uint32_t Release() override; // IFDE_CSSStyleSheet: FX_BOOL GetUrl(CFX_WideString& szUrl) override { szUrl = m_szUrl; return szUrl.GetLength() > 0; } uint32_t GetMediaList() const override { return m_dwMediaList; } uint16_t GetCodePage() const override { return m_wCodePage; } int32_t CountRules() const override; IFDE_CSSRule* GetRule(int32_t index) override; FX_BOOL LoadFromStream(const CFX_WideString& szUrl, IFX_Stream* pStream, uint16_t wCodePage); FX_BOOL LoadFromBuffer(const CFX_WideString& szUrl, const FX_WCHAR* pBuffer, int32_t iBufSize, uint16_t wCodePage); protected: void Reset(); FX_BOOL LoadFromSyntax(CFDE_CSSSyntaxParser* pSyntax); FDE_CSSSYNTAXSTATUS LoadStyleRule(CFDE_CSSSyntaxParser* pSyntax, CFDE_CSSRuleArray& ruleArray); FDE_CSSSYNTAXSTATUS LoadImportRule(CFDE_CSSSyntaxParser* pSyntax); FDE_CSSSYNTAXSTATUS LoadPageRule(CFDE_CSSSyntaxParser* pSyntax); FDE_CSSSYNTAXSTATUS LoadMediaRule(CFDE_CSSSyntaxParser* pSyntax); FDE_CSSSYNTAXSTATUS LoadFontFaceRule(CFDE_CSSSyntaxParser* pSyntax, CFDE_CSSRuleArray& ruleArray); FDE_CSSSYNTAXSTATUS SkipRuleSet(CFDE_CSSSyntaxParser* pSyntax); uint16_t m_wCodePage; uint16_t m_wRefCount; uint32_t m_dwMediaList; IFX_MemoryAllocator* m_pAllocator; CFDE_CSSRuleArray m_RuleArray; CFX_WideString m_szUrl; CFDE_CSSSelectorArray m_Selectors; std::unordered_map<uint32_t, FX_WCHAR*> m_StringCache; }; #endif // XFA_FDE_CSS_FDE_CSSSTYLESHEET_H_