// Copyright 2016 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 CORE_FPDFAPI_PAGE_CPDF_CONTENTPARSER_H_ #define CORE_FPDFAPI_PAGE_CPDF_CONTENTPARSER_H_ #include <memory> #include <set> #include <vector> #include "core/fpdfapi/page/cpdf_pageobjectholder.h" #include "core/fpdfapi/page/cpdf_streamcontentparser.h" #include "core/fpdfapi/parser/cpdf_stream_acc.h" #include "core/fxcrt/unowned_ptr.h" class CPDF_AllStates; class CPDF_Form; class CPDF_Page; class CPDF_StreamAcc; class CPDF_Type3Char; class CPDF_ContentParser { public: enum ParseStatus { Ready, ToBeContinued, Done }; CPDF_ContentParser(); ~CPDF_ContentParser(); ParseStatus GetStatus() const { return m_Status; } const CPDF_AllStates* GetCurStates() const { return m_pParser ? m_pParser->GetCurStates() : nullptr; } void Start(CPDF_Page* pPage); void Start(CPDF_Form* pForm, CPDF_AllStates* pGraphicStates, const CFX_Matrix* pParentMatrix, CPDF_Type3Char* pType3Char, std::set<const uint8_t*>* parsedSet); void Continue(IFX_PauseIndicator* pPause); private: enum InternalStage { STAGE_GETCONTENT = 1, STAGE_PARSE, STAGE_CHECKCLIP, }; ParseStatus m_Status; InternalStage m_InternalStage; UnownedPtr<CPDF_PageObjectHolder> m_pObjectHolder; bool m_bForm; UnownedPtr<CPDF_Type3Char> m_pType3Char; uint32_t m_nStreams; RetainPtr<CPDF_StreamAcc> m_pSingleStream; std::vector<RetainPtr<CPDF_StreamAcc>> m_StreamArray; uint8_t* m_pData; uint32_t m_Size; uint32_t m_CurrentOffset; std::unique_ptr<std::set<const uint8_t*>> m_parsedSet; // m_pParser has a reference to m_parsedSet, so must be below and thus // destroyed first. std::unique_ptr<CPDF_StreamContentParser> m_pParser; }; #endif // CORE_FPDFAPI_PAGE_CPDF_CONTENTPARSER_H_