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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_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_
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