1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
|
// 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
#include "core/fpdfdoc/cpdf_action.h"
#include "constants/stream_dict_common.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_dictionary.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfdoc/cpdf_filespec.h"
#include "core/fpdfdoc/cpdf_nametree.h"
namespace {
const char* const g_sATypes[] = {
"Unknown", "GoTo", "GoToR", "GoToE", "Launch",
"Thread", "URI", "Sound", "Movie", "Hide",
"Named", "SubmitForm", "ResetForm", "ImportData", "JavaScript",
"SetOCGState", "Rendition", "Trans", "GoTo3DView", nullptr};
} // namespace
CPDF_Action::CPDF_Action(const CPDF_Dictionary* pDict) : m_pDict(pDict) {}
CPDF_Action::CPDF_Action(const CPDF_Action& that) = default;
CPDF_Action::~CPDF_Action() = default;
CPDF_Action::ActionType CPDF_Action::GetType() const {
if (!m_pDict)
return Unknown;
ByteString csType = m_pDict->GetStringFor("S");
if (csType.IsEmpty())
return Unknown;
for (int i = 0; g_sATypes[i]; ++i) {
if (csType == g_sATypes[i])
return static_cast<ActionType>(i);
}
return Unknown;
}
CPDF_Dest CPDF_Action::GetDest(CPDF_Document* pDoc) const {
ActionType type = GetType();
if (type != GoTo && type != GoToR)
return CPDF_Dest();
const CPDF_Object* pDest = m_pDict->GetDirectObjectFor("D");
if (!pDest)
return CPDF_Dest();
if (pDest->IsString() || pDest->IsName()) {
CPDF_NameTree name_tree(pDoc, "Dests");
return CPDF_Dest(name_tree.LookupNamedDest(pDoc, pDest->GetUnicodeText()));
}
if (const CPDF_Array* pArray = pDest->AsArray())
return CPDF_Dest(pArray);
return CPDF_Dest();
}
WideString CPDF_Action::GetFilePath() const {
ActionType type = GetType();
if (type != GoToR && type != Launch && type != SubmitForm &&
type != ImportData) {
return WideString();
}
const CPDF_Object* pFile = m_pDict->GetDirectObjectFor(pdfium::stream::kF);
if (pFile)
return CPDF_FileSpec(pFile).GetFileName();
if (type != Launch)
return WideString();
const CPDF_Dictionary* pWinDict = m_pDict->GetDictFor("Win");
if (!pWinDict)
return WideString();
return WideString::FromLocal(
pWinDict->GetStringFor(pdfium::stream::kF).AsStringView());
}
ByteString CPDF_Action::GetURI(const CPDF_Document* pDoc) const {
ActionType type = GetType();
if (type != URI)
return ByteString();
ByteString csURI = m_pDict->GetStringFor("URI");
const CPDF_Dictionary* pRoot = pDoc->GetRoot();
const CPDF_Dictionary* pURI = pRoot->GetDictFor("URI");
if (pURI) {
auto result = csURI.Find(":");
if (!result.has_value() || result.value() == 0)
csURI = pURI->GetStringFor("Base") + csURI;
}
return csURI;
}
bool CPDF_Action::GetHideStatus() const {
return m_pDict->GetBooleanFor("H", true);
}
ByteString CPDF_Action::GetNamedAction() const {
return m_pDict->GetStringFor("N");
}
uint32_t CPDF_Action::GetFlags() const {
return m_pDict->GetIntegerFor("Flags");
}
WideString CPDF_Action::GetJavaScript() const {
WideString csJS;
if (!m_pDict)
return csJS;
const CPDF_Object* pJS = m_pDict->GetDirectObjectFor("JS");
return pJS ? pJS->GetUnicodeText() : csJS;
}
size_t CPDF_Action::GetSubActionsCount() const {
if (!m_pDict || !m_pDict->KeyExist("Next"))
return 0;
const CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
if (!pNext)
return 0;
if (pNext->IsDictionary())
return 1;
const CPDF_Array* pArray = pNext->AsArray();
return pArray ? pArray->GetCount() : 0;
}
CPDF_Action CPDF_Action::GetSubAction(size_t iIndex) const {
if (!m_pDict || !m_pDict->KeyExist("Next"))
return CPDF_Action(nullptr);
const CPDF_Object* pNext = m_pDict->GetDirectObjectFor("Next");
if (const CPDF_Array* pArray = ToArray(pNext))
return CPDF_Action(pArray->GetDictAt(iIndex));
if (const CPDF_Dictionary* pDict = ToDictionary(pNext)) {
if (iIndex == 0)
return CPDF_Action(pDict);
}
return CPDF_Action(nullptr);
}
|
