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
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
|
// 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_annotlist.h"
#include <algorithm>
#include <memory>
#include <utility>
#include "core/fpdfapi/page/cpdf_page.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "core/fpdfapi/parser/cpdf_name.h"
#include "core/fpdfapi/parser/cpdf_number.h"
#include "core/fpdfapi/parser/cpdf_reference.h"
#include "core/fpdfapi/parser/cpdf_string.h"
#include "core/fpdfapi/render/cpdf_renderoptions.h"
#include "core/fpdfdoc/cpdf_annot.h"
#include "core/fpdfdoc/cpdf_formfield.h"
#include "core/fpdfdoc/cpdf_interform.h"
#include "core/fpdfdoc/cpdf_occontext.h"
#include "core/fpdfdoc/cpvt_generateap.h"
#include "core/fxge/cfx_renderdevice.h"
#include "third_party/base/ptr_util.h"
namespace {
std::unique_ptr<CPDF_Annot> CreatePopupAnnot(CPDF_Annot* pAnnot,
CPDF_Document* pDocument,
CPDF_Page* pPage) {
CPDF_Dictionary* pParentDict = pAnnot->GetAnnotDict();
if (!pParentDict)
return nullptr;
// TODO(jaepark): We shouldn't strip BOM for some strings and not for others.
// See pdfium:593.
WideString sContents = pParentDict->GetUnicodeTextFor("Contents");
if (sContents.IsEmpty())
return nullptr;
auto pAnnotDict =
pdfium::MakeUnique<CPDF_Dictionary>(pDocument->GetByteStringPool());
pAnnotDict->SetNewFor<CPDF_Name>("Type", "Annot");
pAnnotDict->SetNewFor<CPDF_Name>("Subtype", "Popup");
pAnnotDict->SetNewFor<CPDF_String>("T", pParentDict->GetStringFor("T"),
false);
pAnnotDict->SetNewFor<CPDF_String>("Contents", sContents.UTF8Encode(), false);
CFX_FloatRect rect = pParentDict->GetRectFor("Rect");
rect.Normalize();
CFX_FloatRect popupRect(0, 0, 200, 200);
// Note that if the popup can set its own dimensions, then we will need to
// make sure that it isn't larger than the page size.
if (rect.left + popupRect.Width() > pPage->GetPageWidth() &&
rect.bottom - popupRect.Height() < 0) {
// If the annotation is on the bottom-right corner of the page, then place
// the popup above and to the left of the annotation.
popupRect.Translate(rect.right - popupRect.Width(), rect.top);
} else {
// Place the popup below and to the right of the annotation without getting
// clipped by page edges.
popupRect.Translate(
std::min(rect.left, pPage->GetPageWidth() - popupRect.Width()),
std::max(rect.bottom - popupRect.Height(), 0.f));
}
pAnnotDict->SetRectFor("Rect", popupRect);
pAnnotDict->SetNewFor<CPDF_Number>("F", 0);
auto pPopupAnnot =
pdfium::MakeUnique<CPDF_Annot>(std::move(pAnnotDict), pDocument);
pAnnot->SetPopupAnnot(pPopupAnnot.get());
return pPopupAnnot;
}
void GenerateAP(CPDF_Document* pDoc, CPDF_Dictionary* pAnnotDict) {
if (!pAnnotDict || pAnnotDict->GetStringFor("Subtype") != "Widget")
return;
CPDF_Object* pFieldTypeObj = FPDF_GetFieldAttr(pAnnotDict, "FT");
if (!pFieldTypeObj)
return;
ByteString field_type = pFieldTypeObj->GetString();
if (field_type == "Tx") {
CPVT_GenerateAP::GenerateFormAP(CPVT_GenerateAP::kTextField, pDoc,
pAnnotDict);
return;
}
CPDF_Object* pFieldFlagsObj = FPDF_GetFieldAttr(pAnnotDict, "Ff");
uint32_t flags = pFieldFlagsObj ? pFieldFlagsObj->GetInteger() : 0;
if (field_type == "Ch") {
CPVT_GenerateAP::GenerateFormAP((flags & (1 << 17))
? CPVT_GenerateAP::kComboBox
: CPVT_GenerateAP::kListBox,
pDoc, pAnnotDict);
return;
}
if (field_type != "Btn")
return;
if (flags & (1 << 16))
return;
if (pAnnotDict->KeyExist("AS"))
return;
CPDF_Dictionary* pParentDict = pAnnotDict->GetDictFor("Parent");
if (!pParentDict || !pParentDict->KeyExist("AS"))
return;
pAnnotDict->SetNewFor<CPDF_String>("AS", pParentDict->GetStringFor("AS"),
false);
return;
}
} // namespace
CPDF_AnnotList::CPDF_AnnotList(CPDF_Page* pPage)
: m_pDocument(pPage->GetDocument()) {
if (!pPage->GetDict())
return;
CPDF_Array* pAnnots = pPage->GetDict()->GetArrayFor("Annots");
if (!pAnnots)
return;
const CPDF_Dictionary* pRoot = m_pDocument->GetRoot();
const CPDF_Dictionary* pAcroForm = pRoot->GetDictFor("AcroForm");
bool bRegenerateAP = pAcroForm && pAcroForm->GetBooleanFor("NeedAppearances");
for (size_t i = 0; i < pAnnots->GetCount(); ++i) {
CPDF_Dictionary* pDict = ToDictionary(pAnnots->GetDirectObjectAt(i));
if (!pDict)
continue;
const ByteString subtype = pDict->GetStringFor("Subtype");
if (subtype == "Popup") {
// Skip creating Popup annotations in the PDF document since PDFium
// provides its own Popup annotations.
continue;
}
pAnnots->ConvertToIndirectObjectAt(i, m_pDocument);
m_AnnotList.push_back(pdfium::MakeUnique<CPDF_Annot>(pDict, m_pDocument));
if (bRegenerateAP && subtype == "Widget" &&
CPDF_InterForm::IsUpdateAPEnabled() && !pDict->GetDictFor("AP")) {
GenerateAP(m_pDocument, pDict);
}
}
size_t nAnnotListSize = m_AnnotList.size();
for (size_t i = 0; i < nAnnotListSize; ++i) {
std::unique_ptr<CPDF_Annot> pPopupAnnot(
CreatePopupAnnot(m_AnnotList[i].get(), m_pDocument, pPage));
if (pPopupAnnot)
m_AnnotList.push_back(std::move(pPopupAnnot));
}
}
CPDF_AnnotList::~CPDF_AnnotList() {}
void CPDF_AnnotList::DisplayPass(CPDF_Page* pPage,
CFX_RenderDevice* pDevice,
CPDF_RenderContext* pContext,
bool bPrinting,
const CFX_Matrix* pMatrix,
bool bWidgetPass,
CPDF_RenderOptions* pOptions,
FX_RECT* clip_rect) {
for (const auto& pAnnot : m_AnnotList) {
bool bWidget = pAnnot->GetSubtype() == CPDF_Annot::Subtype::WIDGET;
if ((bWidgetPass && !bWidget) || (!bWidgetPass && bWidget))
continue;
uint32_t annot_flags = pAnnot->GetFlags();
if (annot_flags & ANNOTFLAG_HIDDEN)
continue;
if (bPrinting && (annot_flags & ANNOTFLAG_PRINT) == 0)
continue;
if (!bPrinting && (annot_flags & ANNOTFLAG_NOVIEW))
continue;
if (pOptions) {
CPDF_Dictionary* pAnnotDict = pAnnot->GetAnnotDict();
if (pOptions->GetOCContext() && pAnnotDict &&
!pOptions->GetOCContext()->CheckOCGVisible(
pAnnotDict->GetDictFor("OC"))) {
continue;
}
}
CFX_Matrix matrix = *pMatrix;
if (clip_rect) {
FX_RECT annot_rect =
matrix.TransformRect(pAnnot->GetRect()).GetOuterRect();
annot_rect.Intersect(*clip_rect);
if (annot_rect.IsEmpty())
continue;
}
if (pContext) {
pAnnot->DrawInContext(pPage, pContext, &matrix, CPDF_Annot::Normal);
} else if (!pAnnot->DrawAppearance(pPage, pDevice, matrix,
CPDF_Annot::Normal, pOptions)) {
pAnnot->DrawBorder(pDevice, &matrix, pOptions);
}
}
}
void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
CFX_RenderDevice* pDevice,
CPDF_RenderContext* pContext,
bool bPrinting,
const CFX_Matrix* pUser2Device,
uint32_t dwAnnotFlags,
CPDF_RenderOptions* pOptions,
FX_RECT* pClipRect) {
if (dwAnnotFlags & ANNOTFLAG_INVISIBLE) {
DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, false,
pOptions, pClipRect);
}
if (dwAnnotFlags & ANNOTFLAG_HIDDEN) {
DisplayPass(pPage, pDevice, pContext, bPrinting, pUser2Device, true,
pOptions, pClipRect);
}
}
void CPDF_AnnotList::DisplayAnnots(CPDF_Page* pPage,
CPDF_RenderContext* pContext,
bool bPrinting,
const CFX_Matrix* pMatrix,
bool bShowWidget,
CPDF_RenderOptions* pOptions) {
uint32_t dwAnnotFlags = bShowWidget ? ANNOTFLAG_INVISIBLE | ANNOTFLAG_HIDDEN
: ANNOTFLAG_INVISIBLE;
DisplayAnnots(pPage, nullptr, pContext, bPrinting, pMatrix, dwAnnotFlags,
pOptions, nullptr);
}
|
