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// Copyright 2017 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_CFDE_CSSSTYLESELECTOR_H_
#define XFA_FDE_CSS_CFDE_CSSSTYLESELECTOR_H_
#include <memory>
#include <vector>
#include "core/fxcrt/fx_basic.h"
#include "core/fxcrt/fx_system.h"
#include "xfa/fde/css/cfde_cssrulecollection.h"
#include "xfa/fde/css/fde_css.h"
class CFDE_CSSAccelerator;
class CFDE_CSSComputedStyle;
class CFDE_CSSDeclaration;
class CFDE_CSSSelector;
class CFDE_CSSStyleSheet;
class CFDE_CSSTagCache;
class CFDE_CSSValue;
class CFDE_CSSValueList;
class CFGAS_FontMgr;
class CXFA_CSSTagProvider;
class CFDE_CSSStyleSelector {
public:
explicit CFDE_CSSStyleSelector(CFGAS_FontMgr* pFontMgr);
~CFDE_CSSStyleSelector();
void SetDefFontSize(FX_FLOAT fFontSize);
void SetUAStyleSheet(std::unique_ptr<CFDE_CSSStyleSheet> pSheet);
void UpdateStyleIndex();
CFDE_CSSAccelerator* InitAccelerator();
CFDE_CSSComputedStyle* CreateComputedStyle(
CFDE_CSSComputedStyle* pParentStyle);
int32_t MatchDeclarations(
CXFA_CSSTagProvider* pTag,
CFX_ArrayTemplate<CFDE_CSSDeclaration*>& matchedDecls);
void ComputeStyle(CXFA_CSSTagProvider* pTag,
const CFDE_CSSDeclaration** ppDeclArray,
int32_t iDeclCount,
CFDE_CSSComputedStyle* pDestStyle);
private:
void MatchRules(CFDE_CSSTagCache* pCache,
CFDE_CSSRuleCollection::Data* pList);
bool MatchSelector(CFDE_CSSTagCache* pCache, CFDE_CSSSelector* pSel);
void AppendInlineStyle(CFDE_CSSDeclaration* pDecl,
const FX_WCHAR* psz,
int32_t iLen);
void ApplyDeclarations(bool bPriority,
const CFDE_CSSDeclaration** ppDeclArray,
int32_t iDeclCount,
CFDE_CSSComputedStyle* pDestStyle);
void ApplyProperty(FDE_CSSProperty eProperty,
CFDE_CSSValue* pValue,
CFDE_CSSComputedStyle* pComputedStyle);
bool SetLengthWithPercent(FDE_CSSLength& width,
FDE_CSSPrimitiveType eType,
CFDE_CSSValue* pValue,
FX_FLOAT fFontSize);
FX_FLOAT ToFontSize(FDE_CSSPropertyValue eValue, FX_FLOAT fCurFontSize);
FDE_CSSDisplay ToDisplay(FDE_CSSPropertyValue eValue);
FDE_CSSTextAlign ToTextAlign(FDE_CSSPropertyValue eValue);
uint16_t ToFontWeight(FDE_CSSPropertyValue eValue);
FDE_CSSFontStyle ToFontStyle(FDE_CSSPropertyValue eValue);
FDE_CSSVerticalAlign ToVerticalAlign(FDE_CSSPropertyValue eValue);
uint32_t ToTextDecoration(CFDE_CSSValueList* pList);
FDE_CSSFontVariant ToFontVariant(FDE_CSSPropertyValue eValue);
CFGAS_FontMgr* const m_pFontMgr;
FX_FLOAT m_fDefFontSize;
std::unique_ptr<CFDE_CSSStyleSheet> m_UAStyles;
CFDE_CSSRuleCollection m_UARules;
std::unique_ptr<CFDE_CSSAccelerator> m_pAccelerator;
std::vector<CFDE_CSSRuleCollection::Data*> m_MatchedRules;
};
#endif // XFA_FDE_CSS_CFDE_CSSSTYLESELECTOR_H_
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