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 "xfa/fxfa/xfa_ffapp.h"
8
9 #include <algorithm>
10 #include <memory>
11 #include <utility>
12 #include <vector>
13
14 #include "third_party/base/ptr_util.h"
15 #include "third_party/base/stl_util.h"
16 #include "xfa/fgas/font/cfgas_fontmgr.h"
17 #include "xfa/fwl/cfwl_notedriver.h"
18 #include "xfa/fwl/cfwl_widgetmgr.h"
19 #include "xfa/fxfa/app/xfa_fwladapter.h"
20 #include "xfa/fxfa/app/xfa_fwltheme.h"
21 #include "xfa/fxfa/xfa_ffdoc.h"
22 #include "xfa/fxfa/xfa_ffdochandler.h"
23 #include "xfa/fxfa/xfa_ffwidgethandler.h"
24 #include "xfa/fxfa/xfa_fontmgr.h"
25
26 namespace {
27
28 class CXFA_FileRead : public IFX_SeekableReadStream {
29 public:
30 explicit CXFA_FileRead(const std::vector<CPDF_Stream*>& streams);
31 ~CXFA_FileRead() override;
32
33 // IFX_SeekableReadStream
34 FX_FILESIZE GetSize() override;
35 bool ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) override;
36
37 private:
38 std::vector<std::unique_ptr<CPDF_StreamAcc>> m_Data;
39 };
40
CXFA_FileRead(const std::vector<CPDF_Stream * > & streams)41 CXFA_FileRead::CXFA_FileRead(const std::vector<CPDF_Stream*>& streams) {
42 for (CPDF_Stream* pStream : streams) {
43 m_Data.push_back(pdfium::MakeUnique<CPDF_StreamAcc>());
44 m_Data.back()->LoadAllData(pStream);
45 }
46 }
47
~CXFA_FileRead()48 CXFA_FileRead::~CXFA_FileRead() {}
49
GetSize()50 FX_FILESIZE CXFA_FileRead::GetSize() {
51 uint32_t dwSize = 0;
52 for (const auto& acc : m_Data)
53 dwSize += acc->GetSize();
54 return dwSize;
55 }
56
ReadBlock(void * buffer,FX_FILESIZE offset,size_t size)57 bool CXFA_FileRead::ReadBlock(void* buffer, FX_FILESIZE offset, size_t size) {
58 int32_t iCount = pdfium::CollectionSize<int32_t>(m_Data);
59 int32_t index = 0;
60 while (index < iCount) {
61 const auto& acc = m_Data[index];
62 FX_FILESIZE dwSize = acc->GetSize();
63 if (offset < dwSize)
64 break;
65
66 offset -= dwSize;
67 index++;
68 }
69 while (index < iCount) {
70 const auto& acc = m_Data[index];
71 uint32_t dwSize = acc->GetSize();
72 size_t dwRead = std::min(size, static_cast<size_t>(dwSize - offset));
73 FXSYS_memcpy(buffer, acc->GetData() + offset, dwRead);
74 size -= dwRead;
75 if (size == 0)
76 return true;
77
78 buffer = (uint8_t*)buffer + dwRead;
79 offset = 0;
80 index++;
81 }
82 return false;
83 }
84
85 } // namespace
86
MakeSeekableReadStream(const std::vector<CPDF_Stream * > & streams)87 CFX_RetainPtr<IFX_SeekableReadStream> MakeSeekableReadStream(
88 const std::vector<CPDF_Stream*>& streams) {
89 return CFX_RetainPtr<IFX_SeekableReadStream>(new CXFA_FileRead(streams));
90 }
91
CXFA_FFApp(IXFA_AppProvider * pProvider)92 CXFA_FFApp::CXFA_FFApp(IXFA_AppProvider* pProvider)
93 : m_pProvider(pProvider),
94 m_pWidgetMgrDelegate(nullptr),
95 m_pFWLApp(new CFWL_App(this)) {}
96
~CXFA_FFApp()97 CXFA_FFApp::~CXFA_FFApp() {}
98
GetDocHandler()99 CXFA_FFDocHandler* CXFA_FFApp::GetDocHandler() {
100 if (!m_pDocHandler)
101 m_pDocHandler = pdfium::MakeUnique<CXFA_FFDocHandler>();
102 return m_pDocHandler.get();
103 }
104
CreateDoc(IXFA_DocEnvironment * pDocEnvironment,CPDF_Document * pPDFDoc)105 std::unique_ptr<CXFA_FFDoc> CXFA_FFApp::CreateDoc(
106 IXFA_DocEnvironment* pDocEnvironment,
107 CPDF_Document* pPDFDoc) {
108 if (!pPDFDoc)
109 return nullptr;
110
111 auto pDoc = pdfium::MakeUnique<CXFA_FFDoc>(this, pDocEnvironment);
112 if (!pDoc->OpenDoc(pPDFDoc))
113 return nullptr;
114
115 return pDoc;
116 }
117
SetDefaultFontMgr(std::unique_ptr<CXFA_DefFontMgr> pFontMgr)118 void CXFA_FFApp::SetDefaultFontMgr(std::unique_ptr<CXFA_DefFontMgr> pFontMgr) {
119 if (!m_pFontMgr)
120 m_pFontMgr = pdfium::MakeUnique<CXFA_FontMgr>();
121 m_pFontMgr->SetDefFontMgr(std::move(pFontMgr));
122 }
123
GetXFAFontMgr() const124 CXFA_FontMgr* CXFA_FFApp::GetXFAFontMgr() const {
125 return m_pFontMgr.get();
126 }
127
GetFDEFontMgr()128 CFGAS_FontMgr* CXFA_FFApp::GetFDEFontMgr() {
129 if (!m_pFDEFontMgr) {
130 #if _FXM_PLATFORM_ == _FXM_PLATFORM_WINDOWS_
131 m_pFDEFontMgr = CFGAS_FontMgr::Create(FX_GetDefFontEnumerator());
132 #else
133 m_pFontSource = pdfium::MakeUnique<CFX_FontSourceEnum_File>();
134 m_pFDEFontMgr = CFGAS_FontMgr::Create(m_pFontSource.get());
135 #endif
136 }
137 return m_pFDEFontMgr.get();
138 }
139
GetFWLTheme()140 CXFA_FWLTheme* CXFA_FFApp::GetFWLTheme() {
141 if (!m_pFWLTheme)
142 m_pFWLTheme = pdfium::MakeUnique<CXFA_FWLTheme>(this);
143 return m_pFWLTheme.get();
144 }
145
GetWidgetMgr(CFWL_WidgetMgrDelegate * pDelegate)146 CXFA_FWLAdapterWidgetMgr* CXFA_FFApp::GetWidgetMgr(
147 CFWL_WidgetMgrDelegate* pDelegate) {
148 if (!m_pAdapterWidgetMgr) {
149 m_pAdapterWidgetMgr = pdfium::MakeUnique<CXFA_FWLAdapterWidgetMgr>();
150 pDelegate->OnSetCapability(FWL_WGTMGR_DisableForm);
151 m_pWidgetMgrDelegate = pDelegate;
152 }
153 return m_pAdapterWidgetMgr.get();
154 }
155
GetTimerMgr() const156 IFWL_AdapterTimerMgr* CXFA_FFApp::GetTimerMgr() const {
157 return m_pProvider->GetTimerMgr();
158 }
159
ClearEventTargets()160 void CXFA_FFApp::ClearEventTargets() {
161 m_pFWLApp->GetNoteDriver()->ClearEventTargets(false);
162 }
163