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/cpdf_action.h"
8
9 #include "core/fpdfapi/parser/cpdf_array.h"
10 #include "core/fpdfapi/parser/cpdf_document.h"
11 #include "core/fpdfdoc/cpdf_filespec.h"
12 #include "core/fpdfdoc/cpdf_nametree.h"
13
14 namespace {
15
16 const FX_CHAR* const g_sATypes[] = {
17 "Unknown", "GoTo", "GoToR", "GoToE", "Launch",
18 "Thread", "URI", "Sound", "Movie", "Hide",
19 "Named", "SubmitForm", "ResetForm", "ImportData", "JavaScript",
20 "SetOCGState", "Rendition", "Trans", "GoTo3DView", nullptr};
21
22 } // namespace
23
GetDest(CPDF_Document * pDoc) const24 CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
25 if (!m_pDict)
26 return CPDF_Dest();
27
28 CFX_ByteString type = m_pDict->GetStringFor("S");
29 if (type != "GoTo" && type != "GoToR")
30 return CPDF_Dest();
31
32 CPDF_Object* pDest = m_pDict->GetDirectObjectFor("D");
33 if (!pDest)
34 return CPDF_Dest();
35 if (pDest->IsString() || pDest->IsName()) {
36 CPDF_NameTree name_tree(pDoc, "Dests");
37 return CPDF_Dest(name_tree.LookupNamedDest(pDoc, pDest->GetString()));
38 }
39 if (CPDF_Array* pArray = pDest->AsArray())
40 return CPDF_Dest(pArray);
41
42 return CPDF_Dest();
43 }
44
GetType() const45 CPDF_Action::ActionType CPDF_Action::GetType() const {
46 if (!m_pDict)
47 return Unknown;
48
49 CFX_ByteString csType = m_pDict->GetStringFor("S");
50 if (csType.IsEmpty())
51 return Unknown;
52
53 for (int i = 0; g_sATypes[i]; ++i) {
54 if (csType == g_sATypes[i])
55 return static_cast<ActionType>(i);
56 }
57 return Unknown;
58 }
59
GetFilePath() const60 CFX_WideString CPDF_Action::GetFilePath() const {
61 CFX_ByteString type = m_pDict->GetStringFor("S");
62 if (type != "GoToR" && type != "Launch" && type != "SubmitForm" &&
63 type != "ImportData") {
64 return CFX_WideString();
65 }
66
67 CPDF_Object* pFile = m_pDict->GetDirectObjectFor("F");
68 CFX_WideString path;
69 if (!pFile) {
70 if (type == "Launch") {
71 CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
72 if (pWinDict) {
73 return CFX_WideString::FromLocal(
74 pWinDict->GetStringFor("F").AsStringC());
75 }
76 }
77 return path;
78 }
79
80 CPDF_FileSpec filespec(pFile);
81 filespec.GetFileName(&path);
82 return path;
83 }
84
GetURI(CPDF_Document * pDoc) const85 CFX_ByteString CPDF_Action::GetURI(CPDF_Document* pDoc) const {
86 CFX_ByteString csURI;
87 if (!m_pDict)
88 return csURI;
89 if (m_pDict->GetStringFor("S") != "URI")
90 return csURI;
91
92 csURI = m_pDict->GetStringFor("URI");
93 CPDF_Dictionary* pRoot = pDoc->GetRoot();
94 CPDF_Dictionary* pURI = pRoot->GetDictFor("URI");
95 if (pURI) {
96 if (csURI.Find(":", 0) < 1)
97 csURI = pURI->GetStringFor("Base") + csURI;
98 }
99 return csURI;
100 }
101
GetJavaScript() const102 CFX_WideString CPDF_Action::GetJavaScript() const {
103 CFX_WideString csJS;
104 if (!m_pDict)
105 return csJS;
106
107 CPDF_Object* pJS = m_pDict->GetDirectObjectFor("JS");
108 return pJS ? pJS->GetUnicodeText() : csJS;
109 }
110
GetSubActionsCount() const111 size_t CPDF_Action::GetSubActionsCount() const {
112 if (!m_pDict || !m_pDict->KeyExist("Next"))
113 return 0;
114
115 CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
116 if (!pNext)
117 return 0;
118 if (pNext->IsDictionary())
119 return 1;
120 if (CPDF_Array* pArray = pNext->AsArray())
121 return pArray->GetCount();
122 return 0;
123 }
124
GetSubAction(size_t iIndex) const125 CPDF_Action CPDF_Action::GetSubAction(size_t iIndex) const {
126 if (!m_pDict || !m_pDict->KeyExist("Next"))
127 return CPDF_Action();
128
129 CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
130 if (CPDF_Dictionary* pDict = ToDictionary(pNext)) {
131 if (iIndex == 0)
132 return CPDF_Action(pDict);
133 } else if (CPDF_Array* pArray = ToArray(pNext)) {
134 return CPDF_Action(pArray->GetDictAt(iIndex));
135 }
136 return CPDF_Action();
137 }
138