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
26namespace {
27
28class 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
41CXFA_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
48CXFA_FileRead::~CXFA_FileRead() {}
49
50FX_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
57bool 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
87CFX_RetainPtr<IFX_SeekableReadStream> MakeSeekableReadStream(
88    const std::vector<CPDF_Stream*>& streams) {
89  return CFX_RetainPtr<IFX_SeekableReadStream>(new CXFA_FileRead(streams));
90}
91
92CXFA_FFApp::CXFA_FFApp(IXFA_AppProvider* pProvider)
93    : m_pProvider(pProvider),
94      m_pWidgetMgrDelegate(nullptr),
95      m_pFWLApp(new CFWL_App(this)) {}
96
97CXFA_FFApp::~CXFA_FFApp() {}
98
99CXFA_FFDocHandler* CXFA_FFApp::GetDocHandler() {
100  if (!m_pDocHandler)
101    m_pDocHandler = pdfium::MakeUnique<CXFA_FFDocHandler>();
102  return m_pDocHandler.get();
103}
104
105std::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
118void 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
124CXFA_FontMgr* CXFA_FFApp::GetXFAFontMgr() const {
125  return m_pFontMgr.get();
126}
127
128CFGAS_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
140CXFA_FWLTheme* CXFA_FFApp::GetFWLTheme() {
141  if (!m_pFWLTheme)
142    m_pFWLTheme = pdfium::MakeUnique<CXFA_FWLTheme>(this);
143  return m_pFWLTheme.get();
144}
145
146CXFA_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
156IFWL_AdapterTimerMgr* CXFA_FFApp::GetTimerMgr() const {
157  return m_pProvider->GetTimerMgr();
158}
159
160void CXFA_FFApp::ClearEventTargets() {
161  m_pFWLApp->GetNoteDriver()->ClearEventTargets(false);
162}
163