| OLD | NEW |
|---|
| (Empty) |
| 1 // Copyright 2014 PDFium Authors. All rights reserved. | |
| 2 // Use of this source code is governed by a BSD-style license that can be | |
| 3 // found in the LICENSE file. | |
| 4 | |
| 5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com | |
| 6 | |
| 7 #include "core/fpdfapi/fpdf_parser/cfdf_document.h" | |
| 8 | |
| 9 #include "core/fpdfapi/edit/cpdf_creator.h" | |
| 10 #include "core/fpdfapi/fpdf_parser/cpdf_dictionary.h" | |
| 11 #include "core/fpdfapi/fpdf_parser/cpdf_syntax_parser.h" | |
| 12 #include "third_party/base/ptr_util.h" | |
| 13 | |
| 14 CFDF_Document::CFDF_Document() | |
| 15 : CPDF_IndirectObjectHolder(), | |
| 16 m_pRootDict(nullptr), | |
| 17 m_pFile(nullptr), | |
| 18 m_bOwnFile(FALSE), | |
| 19 m_pByteStringPool(pdfium::MakeUnique<CFX_ByteStringPool>()) {} | |
| 20 | |
| 21 CFDF_Document::~CFDF_Document() { | |
| 22 if (m_bOwnFile && m_pFile) | |
| 23 m_pFile->Release(); | |
| 24 m_pByteStringPool.DeleteObject(); // Make weak. | |
| 25 } | |
| 26 | |
| 27 CFDF_Document* CFDF_Document::CreateNewDoc() { | |
| 28 CFDF_Document* pDoc = new CFDF_Document; | |
| 29 pDoc->m_pRootDict = new CPDF_Dictionary(pDoc->GetByteStringPool()); | |
| 30 pDoc->AddIndirectObject(pDoc->m_pRootDict); | |
| 31 pDoc->m_pRootDict->SetFor("FDF", | |
| 32 new CPDF_Dictionary(pDoc->GetByteStringPool())); | |
| 33 return pDoc; | |
| 34 } | |
| 35 | |
| 36 CFDF_Document* CFDF_Document::ParseFile(IFX_FileRead* pFile, FX_BOOL bOwnFile) { | |
| 37 if (!pFile) | |
| 38 return nullptr; | |
| 39 | |
| 40 std::unique_ptr<CFDF_Document> pDoc(new CFDF_Document); | |
| 41 pDoc->ParseStream(pFile, bOwnFile); | |
| 42 return pDoc->m_pRootDict ? pDoc.release() : nullptr; | |
| 43 } | |
| 44 | |
| 45 CFDF_Document* CFDF_Document::ParseMemory(const uint8_t* pData, uint32_t size) { | |
| 46 return CFDF_Document::ParseFile(FX_CreateMemoryStream((uint8_t*)pData, size), | |
| 47 TRUE); | |
| 48 } | |
| 49 | |
| 50 void CFDF_Document::ParseStream(IFX_FileRead* pFile, FX_BOOL bOwnFile) { | |
| 51 m_pFile = pFile; | |
| 52 m_bOwnFile = bOwnFile; | |
| 53 CPDF_SyntaxParser parser; | |
| 54 parser.InitParser(m_pFile, 0); | |
| 55 while (1) { | |
| 56 bool bNumber; | |
| 57 CFX_ByteString word = parser.GetNextWord(&bNumber); | |
| 58 if (bNumber) { | |
| 59 uint32_t objnum = FXSYS_atoui(word.c_str()); | |
| 60 word = parser.GetNextWord(&bNumber); | |
| 61 if (!bNumber) | |
| 62 break; | |
| 63 | |
| 64 word = parser.GetNextWord(nullptr); | |
| 65 if (word != "obj") | |
| 66 break; | |
| 67 | |
| 68 CPDF_Object* pObj = parser.GetObject(this, objnum, 0, true); | |
| 69 if (!pObj) | |
| 70 break; | |
| 71 | |
| 72 ReplaceIndirectObjectIfHigherGeneration(objnum, pObj); | |
| 73 word = parser.GetNextWord(nullptr); | |
| 74 if (word != "endobj") | |
| 75 break; | |
| 76 } else { | |
| 77 if (word != "trailer") | |
| 78 break; | |
| 79 | |
| 80 if (CPDF_Dictionary* pMainDict = | |
| 81 ToDictionary(parser.GetObject(this, 0, 0, true))) { | |
| 82 m_pRootDict = pMainDict->GetDictFor("Root"); | |
| 83 pMainDict->Release(); | |
| 84 } | |
| 85 break; | |
| 86 } | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 FX_BOOL CFDF_Document::WriteBuf(CFX_ByteTextBuf& buf) const { | |
| 91 if (!m_pRootDict) | |
| 92 return FALSE; | |
| 93 | |
| 94 buf << "%FDF-1.2\r\n"; | |
| 95 for (const auto& pair : *this) | |
| 96 buf << pair.first << " 0 obj\r\n" | |
| 97 << pair.second.get() << "\r\nendobj\r\n\r\n"; | |
| 98 | |
| 99 buf << "trailer\r\n<</Root " << m_pRootDict->GetObjNum() | |
| 100 << " 0 R>>\r\n%%EOF\r\n"; | |
| 101 return TRUE; | |
| 102 } | |
| OLD | NEW |
|---|
Chromium Code Reviews
Issue 2392603004:
Move core/fpdfapi/fpdf_parser to core/fpdfapi/parser (Closed)
