// 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_FXFA_CXFA_TEXTPARSER_H_ #define XFA_FXFA_CXFA_TEXTPARSER_H_ #include <map> #include <memory> #include "core/fxcrt/fx_string.h" #include "core/fxcrt/fx_system.h" #include "core/fxcrt/retain_ptr.h" #include "core/fxge/fx_dib.h" #include "xfa/fgas/font/cfgas_gefont.h" #include "xfa/fxfa/fxfa_basic.h" class CFX_CSSComputedStyle; class CFX_CSSStyleSelector; class CFX_CSSStyleSheet; class CFX_XMLNode; class CXFA_TextParseContext; class CXFA_TextProvider; class CXFA_TextTabstopsContext; class CXFA_TextParser { public: CXFA_TextParser(); virtual ~CXFA_TextParser(); void Reset(); void DoParse(CFX_XMLNode* pXMLContainer, CXFA_TextProvider* pTextProvider); RetainPtr<CFX_CSSComputedStyle> CreateRootStyle( CXFA_TextProvider* pTextProvider); RetainPtr<CFX_CSSComputedStyle> ComputeStyle( CFX_XMLNode* pXMLNode, CFX_CSSComputedStyle* pParentStyle); bool IsParsed() const { return m_bParsed; } XFA_AttributeEnum GetVAlign(CXFA_TextProvider* pTextProvider) const; float GetTabInterval(CFX_CSSComputedStyle* pStyle) const; int32_t CountTabs(CFX_CSSComputedStyle* pStyle) const; bool IsSpaceRun(CFX_CSSComputedStyle* pStyle) const; bool GetTabstops(CFX_CSSComputedStyle* pStyle, CXFA_TextTabstopsContext* pTabstopContext); RetainPtr<CFGAS_GEFont> GetFont(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle) const; float GetFontSize(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle) const; int32_t GetHorScale(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle, CFX_XMLNode* pXMLNode) const; int32_t GetVerScale(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle) const; void GetUnderline(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle, int32_t& iUnderline, XFA_AttributeEnum& iPeriod) const; void GetLinethrough(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle, int32_t& iLinethrough) const; FX_ARGB GetColor(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle) const; float GetBaseline(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle) const; float GetLineHeight(CXFA_TextProvider* pTextProvider, CFX_CSSComputedStyle* pStyle, bool bFirst, float fVerScale) const; bool GetEmbbedObj(CXFA_TextProvider* pTextProvider, CFX_XMLNode* pXMLNode, WideString& wsValue); CXFA_TextParseContext* GetParseContextFromMap(CFX_XMLNode* pXMLNode); protected: bool TagValidate(const WideString& str) const; private: class TagProvider { public: TagProvider(); ~TagProvider(); WideString GetTagName() { return m_wsTagName; } void SetTagName(const WideString& wsName) { m_wsTagName = wsName; } void SetAttribute(const WideString& wsAttr, const WideString& wsValue) { m_Attributes.insert({wsAttr, wsValue}); } WideString GetAttribute(const WideString& wsAttr) { return m_Attributes[wsAttr]; } bool m_bTagAvailable; bool m_bContent; private: WideString m_wsTagName; std::map<WideString, WideString> m_Attributes; }; void InitCSSData(CXFA_TextProvider* pTextProvider); void ParseRichText(CFX_XMLNode* pXMLNode, CFX_CSSComputedStyle* pParentStyle); std::unique_ptr<TagProvider> ParseTagInfo(CFX_XMLNode* pXMLNode); std::unique_ptr<CFX_CSSStyleSheet> LoadDefaultSheetStyle(); RetainPtr<CFX_CSSComputedStyle> CreateStyle( CFX_CSSComputedStyle* pParentStyle); bool m_bParsed; bool m_cssInitialized; std::unique_ptr<CFX_CSSStyleSelector> m_pSelector; std::map<CFX_XMLNode*, std::unique_ptr<CXFA_TextParseContext>> m_mapXMLNodeToParseContext; }; #endif // XFA_FXFA_CXFA_TEXTPARSER_H_