cjs_runtime.cpp revision 5ae9d0c6fd838a2967cca72aa5751b51dadc2769 
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 "fpdfsdk/javascript/cjs_runtime.h"
8
9#include <algorithm>
10
11#include "fpdfsdk/cpdfsdk_formfillenvironment.h"
12#include "fpdfsdk/javascript/Annot.h"
13#include "fpdfsdk/javascript/Consts.h"
14#include "fpdfsdk/javascript/Document.h"
15#include "fpdfsdk/javascript/Field.h"
16#include "fpdfsdk/javascript/Icon.h"
17#include "fpdfsdk/javascript/JS_Define.h"
18#include "fpdfsdk/javascript/JS_EventHandler.h"
19#include "fpdfsdk/javascript/JS_GlobalData.h"
20#include "fpdfsdk/javascript/JS_Object.h"
21#include "fpdfsdk/javascript/JS_Value.h"
22#include "fpdfsdk/javascript/PublicMethods.h"
23#include "fpdfsdk/javascript/app.h"
24#include "fpdfsdk/javascript/cjs_event_context.h"
25#include "fpdfsdk/javascript/color.h"
26#include "fpdfsdk/javascript/console.h"
27#include "fpdfsdk/javascript/event.h"
28#include "fpdfsdk/javascript/global.h"
29#include "fpdfsdk/javascript/report.h"
30#include "fpdfsdk/javascript/util.h"
31#include "public/fpdf_formfill.h"
32#include "third_party/base/stl_util.h"
33
34#ifdef PDF_ENABLE_XFA
35#include "fxjs/cfxjse_value.h"
36#endif  // PDF_ENABLE_XFA
37
38// static
39void IJS_Runtime::Initialize(unsigned int slot, void* isolate) {
40  FXJS_Initialize(slot, reinterpret_cast<v8::Isolate*>(isolate));
41}
42
43// static
44void IJS_Runtime::Destroy() {
45  FXJS_Release();
46}
47
48// static
49IJS_Runtime* IJS_Runtime::Create(CPDFSDK_FormFillEnvironment* pFormFillEnv) {
50  return new CJS_Runtime(pFormFillEnv);
51}
52
53// static
54CJS_Runtime* CJS_Runtime::CurrentRuntimeFromIsolate(v8::Isolate* pIsolate) {
55  return static_cast<CJS_Runtime*>(
56      CFXJS_Engine::CurrentEngineFromIsolate(pIsolate));
57}
58
59CJS_Runtime::CJS_Runtime(CPDFSDK_FormFillEnvironment* pFormFillEnv)
60    : m_pFormFillEnv(pFormFillEnv),
61      m_bBlocking(false),
62      m_isolateManaged(false) {
63  v8::Isolate* pIsolate = nullptr;
64
65  IPDF_JSPLATFORM* pPlatform = m_pFormFillEnv->GetFormFillInfo()->m_pJsPlatform;
66  if (pPlatform->version <= 2) {
67    unsigned int embedderDataSlot = 0;
68    v8::Isolate* pExternalIsolate = nullptr;
69    if (pPlatform->version == 2) {
70      pExternalIsolate = reinterpret_cast<v8::Isolate*>(pPlatform->m_isolate);
71      embedderDataSlot = pPlatform->m_v8EmbedderSlot;
72    }
73    FXJS_Initialize(embedderDataSlot, pExternalIsolate);
74  }
75  m_isolateManaged = FXJS_GetIsolate(&pIsolate);
76  SetIsolate(pIsolate);
77
78#ifdef PDF_ENABLE_XFA
79  v8::Isolate::Scope isolate_scope(pIsolate);
80  v8::HandleScope handle_scope(pIsolate);
81#endif
82
83  if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0)
84    DefineJSObjects();
85
86  IJS_EventContext* pContext = NewEventContext();
87  InitializeEngine();
88  ReleaseEventContext(pContext);
89  SetFormFillEnvToDocument();
90}
91
92CJS_Runtime::~CJS_Runtime() {
93  NotifyObservedPtrs();
94  ReleaseEngine();
95  if (m_isolateManaged) {
96    GetIsolate()->Dispose();
97    SetIsolate(nullptr);
98  }
99}
100
101void CJS_Runtime::DefineJSObjects() {
102  v8::Isolate::Scope isolate_scope(GetIsolate());
103  v8::HandleScope handle_scope(GetIsolate());
104  v8::Local<v8::Context> context = v8::Context::New(GetIsolate());
105  v8::Context::Scope context_scope(context);
106
107  // The call order determines the "ObjDefID" assigned to each class.
108  // ObjDefIDs 0 - 2
109  CJS_Border::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
110  CJS_Display::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
111  CJS_Font::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
112
113  // ObjDefIDs 3 - 5
114  CJS_Highlight::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
115  CJS_Position::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
116  CJS_ScaleHow::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
117
118  // ObjDefIDs 6 - 8
119  CJS_ScaleWhen::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
120  CJS_Style::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
121  CJS_Zoomtype::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
122
123  // ObjDefIDs 9 - 11
124  CJS_App::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
125  CJS_Color::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
126  CJS_Console::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
127
128  // ObjDefIDs 12 - 14
129  CJS_Document::DefineJSObjects(this, FXJSOBJTYPE_GLOBAL);
130  CJS_Event::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
131  CJS_Field::DefineJSObjects(this, FXJSOBJTYPE_DYNAMIC);
132
133  // ObjDefIDs 15 - 17
134  CJS_Global::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
135  CJS_Icon::DefineJSObjects(this, FXJSOBJTYPE_DYNAMIC);
136  CJS_Util::DefineJSObjects(this, FXJSOBJTYPE_STATIC);
137
138  // ObjDefIDs 18 - 20 (these can't fail, return void).
139  CJS_PublicMethods::DefineJSObjects(this);
140  CJS_GlobalConsts::DefineJSObjects(this);
141  CJS_GlobalArrays::DefineJSObjects(this);
142
143  // ObjDefIDs 21 - 23.
144  CJS_TimerObj::DefineJSObjects(this, FXJSOBJTYPE_DYNAMIC);
145  CJS_PrintParamsObj::DefineJSObjects(this, FXJSOBJTYPE_DYNAMIC);
146  CJS_Annot::DefineJSObjects(this, FXJSOBJTYPE_DYNAMIC);
147}
148
149IJS_EventContext* CJS_Runtime::NewEventContext() {
150  m_EventContextArray.push_back(
151      std::unique_ptr<CJS_EventContext>(new CJS_EventContext(this)));
152  return m_EventContextArray.back().get();
153}
154
155void CJS_Runtime::ReleaseEventContext(IJS_EventContext* pContext) {
156  auto it = std::find(m_EventContextArray.begin(), m_EventContextArray.end(),
157                      pdfium::FakeUniquePtr<CJS_EventContext>(
158                          static_cast<CJS_EventContext*>(pContext)));
159  if (it != m_EventContextArray.end())
160    m_EventContextArray.erase(it);
161}
162
163CJS_EventContext* CJS_Runtime::GetCurrentEventContext() const {
164  return m_EventContextArray.empty() ? nullptr
165                                     : m_EventContextArray.back().get();
166}
167
168void CJS_Runtime::SetFormFillEnvToDocument() {
169  v8::Isolate::Scope isolate_scope(GetIsolate());
170  v8::HandleScope handle_scope(GetIsolate());
171  v8::Local<v8::Context> context = NewLocalContext();
172  v8::Context::Scope context_scope(context);
173
174  v8::Local<v8::Object> pThis = GetThisObj();
175  if (pThis.IsEmpty())
176    return;
177
178  if (CFXJS_Engine::GetObjDefnID(pThis) != CJS_Document::g_nObjDefnID)
179    return;
180
181  CJS_Document* pJSDocument =
182      static_cast<CJS_Document*>(GetObjectPrivate(pThis));
183  if (!pJSDocument)
184    return;
185
186  Document* pDocument = static_cast<Document*>(pJSDocument->GetEmbedObject());
187  if (!pDocument)
188    return;
189
190  pDocument->SetFormFillEnv(m_pFormFillEnv.Get());
191}
192
193CPDFSDK_FormFillEnvironment* CJS_Runtime::GetFormFillEnv() const {
194  return m_pFormFillEnv.Get();
195}
196
197int CJS_Runtime::ExecuteScript(const CFX_WideString& script,
198                               CFX_WideString* info) {
199  FXJSErr error = {};
200  int nRet = Execute(script, &error);
201  if (nRet < 0) {
202    info->Format(L"[ Line: %05d { %s } ] : %s", error.linnum - 1, error.srcline,
203                 error.message);
204  }
205  return nRet;
206}
207
208bool CJS_Runtime::AddEventToSet(const FieldEvent& event) {
209  return m_FieldEventSet.insert(event).second;
210}
211
212void CJS_Runtime::RemoveEventFromSet(const FieldEvent& event) {
213  m_FieldEventSet.erase(event);
214}
215
216#ifdef PDF_ENABLE_XFA
217CFX_WideString ChangeObjName(const CFX_WideString& str) {
218  CFX_WideString sRet = str;
219  sRet.Replace(L"_", L".");
220  return sRet;
221}
222bool CJS_Runtime::GetValueByName(const CFX_ByteStringC& utf8Name,
223                                 CFXJSE_Value* pValue) {
224  const FX_CHAR* name = utf8Name.c_str();
225
226  v8::Isolate::Scope isolate_scope(GetIsolate());
227  v8::HandleScope handle_scope(GetIsolate());
228  v8::Local<v8::Context> context = NewLocalContext();
229  v8::Context::Scope context_scope(context);
230
231  v8::Local<v8::Value> propvalue =
232      context->Global()->Get(v8::String::NewFromUtf8(
233          GetIsolate(), name, v8::String::kNormalString, utf8Name.GetLength()));
234
235  if (propvalue.IsEmpty()) {
236    pValue->SetUndefined();
237    return false;
238  }
239  pValue->ForceSetValue(propvalue);
240  return true;
241}
242bool CJS_Runtime::SetValueByName(const CFX_ByteStringC& utf8Name,
243                                 CFXJSE_Value* pValue) {
244  if (utf8Name.IsEmpty() || !pValue)
245    return false;
246  const FX_CHAR* name = utf8Name.c_str();
247  v8::Isolate* pIsolate = GetIsolate();
248  v8::Isolate::Scope isolate_scope(pIsolate);
249  v8::HandleScope handle_scope(pIsolate);
250  v8::Local<v8::Context> context = NewLocalContext();
251  v8::Context::Scope context_scope(context);
252
253  // v8::Local<v8::Context> tmpCotext =
254  // v8::Local<v8::Context>::New(GetIsolate(), m_context);
255  v8::Local<v8::Value> propvalue =
256      v8::Local<v8::Value>::New(GetIsolate(), pValue->DirectGetValue());
257  context->Global()->Set(
258      v8::String::NewFromUtf8(pIsolate, name, v8::String::kNormalString,
259                              utf8Name.GetLength()),
260      propvalue);
261  return true;
262}
263#endif
264