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| 1 // Copyright 2016 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/fpdfdoc/include/cpdf_actionfields.h" |
| 8 |
| 9 #include "core/fpdfapi/fpdf_parser/include/cpdf_array.h" |
| 10 #include "core/fpdfapi/fpdf_parser/include/cpdf_dictionary.h" |
| 11 #include "core/fpdfdoc/include/cpdf_action.h" |
| 12 |
| 13 size_t CPDF_ActionFields::GetFieldsCount() const { |
| 14 if (!m_pAction) |
| 15 return 0; |
| 16 |
| 17 CPDF_Dictionary* pDict = m_pAction->GetDict(); |
| 18 if (!pDict) |
| 19 return 0; |
| 20 |
| 21 CFX_ByteString csType = pDict->GetStringBy("S"); |
| 22 CPDF_Object* pFields = nullptr; |
| 23 if (csType == "Hide") |
| 24 pFields = pDict->GetDirectObjectBy("T"); |
| 25 else |
| 26 pFields = pDict->GetArrayBy("Fields"); |
| 27 |
| 28 if (!pFields) |
| 29 return 0; |
| 30 if (pFields->IsDictionary()) |
| 31 return 1; |
| 32 if (pFields->IsString()) |
| 33 return 1; |
| 34 if (CPDF_Array* pArray = pFields->AsArray()) |
| 35 return pArray->GetCount(); |
| 36 return 0; |
| 37 } |
| 38 |
| 39 std::vector<CPDF_Object*> CPDF_ActionFields::GetAllFields() const { |
| 40 std::vector<CPDF_Object*> fields; |
| 41 if (!m_pAction) |
| 42 return fields; |
| 43 |
| 44 CPDF_Dictionary* pDict = m_pAction->GetDict(); |
| 45 if (!pDict) |
| 46 return fields; |
| 47 |
| 48 CFX_ByteString csType = pDict->GetStringBy("S"); |
| 49 CPDF_Object* pFields; |
| 50 if (csType == "Hide") |
| 51 pFields = pDict->GetDirectObjectBy("T"); |
| 52 else |
| 53 pFields = pDict->GetArrayBy("Fields"); |
| 54 |
| 55 if (!pFields) |
| 56 return fields; |
| 57 |
| 58 if (pFields->IsDictionary() || pFields->IsString()) { |
| 59 fields.push_back(pFields); |
| 60 } else if (CPDF_Array* pArray = pFields->AsArray()) { |
| 61 for (size_t i = 0; i < pArray->GetCount(); ++i) { |
| 62 CPDF_Object* pObj = pArray->GetDirectObjectAt(i); |
| 63 if (pObj) |
| 64 fields.push_back(pObj); |
| 65 } |
| 66 } |
| 67 return fields; |
| 68 } |
| 69 |
| 70 CPDF_Object* CPDF_ActionFields::GetField(size_t iIndex) const { |
| 71 if (!m_pAction) |
| 72 return nullptr; |
| 73 |
| 74 CPDF_Dictionary* pDict = m_pAction->GetDict(); |
| 75 if (!pDict) |
| 76 return nullptr; |
| 77 |
| 78 CFX_ByteString csType = pDict->GetStringBy("S"); |
| 79 CPDF_Object* pFields = nullptr; |
| 80 if (csType == "Hide") |
| 81 pFields = pDict->GetDirectObjectBy("T"); |
| 82 else |
| 83 pFields = pDict->GetArrayBy("Fields"); |
| 84 |
| 85 if (!pFields) |
| 86 return nullptr; |
| 87 |
| 88 CPDF_Object* pFindObj = nullptr; |
| 89 if (pFields->IsDictionary() || pFields->IsString()) { |
| 90 if (iIndex == 0) |
| 91 pFindObj = pFields; |
| 92 } else if (CPDF_Array* pArray = pFields->AsArray()) { |
| 93 pFindObj = pArray->GetDirectObjectAt(iIndex); |
| 94 } |
| 95 return pFindObj; |
| 96 } |
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