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| 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/JS_Runtime.h" | |
| 8 | |
| 9 #include <algorithm> | |
| 10 | |
| 11 #include "fpdfsdk/include/fsdk_mgr.h" // For CPDFDoc_Environment. | |
| 12 #include "fpdfsdk/include/javascript/IJavaScript.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_Context.h" | |
| 18 #include "fpdfsdk/javascript/JS_Define.h" | |
| 19 #include "fpdfsdk/javascript/JS_EventHandler.h" | |
| 20 #include "fpdfsdk/javascript/JS_GlobalData.h" | |
| 21 #include "fpdfsdk/javascript/JS_Object.h" | |
| 22 #include "fpdfsdk/javascript/JS_Value.h" | |
| 23 #include "fpdfsdk/javascript/PublicMethods.h" | |
| 24 #include "fpdfsdk/javascript/app.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 "third_party/base/stl_util.h" | |
| 32 | |
| 33 #ifdef PDF_ENABLE_XFA | |
| 34 #include "fpdfsdk/include/fpdfxfa/fpdfxfa_app.h" | |
| 35 #include "xfa/fxjse/value.h" | |
| 36 #endif // PDF_ENABLE_XFA | |
| 37 | |
| 38 // static | |
| 39 void IJS_Runtime::Initialize(unsigned int slot, void* isolate) { | |
| 40 FXJS_Initialize(slot, reinterpret_cast<v8::Isolate*>(isolate)); | |
| 41 } | |
| 42 | |
| 43 // static | |
| 44 IJS_Runtime* IJS_Runtime::Create(CPDFDoc_Environment* pEnv) { | |
| 45 return new CJS_Runtime(pEnv); | |
| 46 } | |
| 47 | |
| 48 // static | |
| 49 CJS_Runtime* CJS_Runtime::FromContext(const IJS_Context* cc) { | |
| 50 const CJS_Context* pContext = static_cast<const CJS_Context*>(cc); | |
| 51 return pContext->GetJSRuntime(); | |
| 52 } | |
| 53 | |
| 54 CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp) | |
| 55 : m_pApp(pApp), | |
| 56 m_pDocument(NULL), | |
| 57 m_bBlocking(FALSE), | |
| 58 m_isolate(NULL), | |
| 59 m_isolateManaged(false) { | |
| 60 #ifndef PDF_ENABLE_XFA | |
| 61 IPDF_JSPLATFORM* pPlatform = m_pApp->GetFormFillInfo()->m_pJsPlatform; | |
| 62 if (pPlatform->version <= 2) { | |
| 63 unsigned int embedderDataSlot = 0; | |
| 64 v8::Isolate* pExternalIsolate = nullptr; | |
| 65 if (pPlatform->version == 2) { | |
| 66 pExternalIsolate = reinterpret_cast<v8::Isolate*>(pPlatform->m_isolate); | |
| 67 embedderDataSlot = pPlatform->m_v8EmbedderSlot; | |
| 68 #else | |
| 69 if (CPDFXFA_App::GetInstance()->GetJSERuntime()) { | |
| 70 // TODO(tsepez): CPDFXFA_App should also use the embedder provided isolate. | |
| 71 m_isolate = (v8::Isolate*)CPDFXFA_App::GetInstance()->GetJSERuntime(); | |
| 72 } else { | |
| 73 IPDF_JSPLATFORM* pPlatform = m_pApp->GetFormFillInfo()->m_pJsPlatform; | |
| 74 if (pPlatform->version <= 2) { | |
| 75 unsigned int embedderDataSlot = 0; | |
| 76 v8::Isolate* pExternalIsolate = nullptr; | |
| 77 if (pPlatform->version == 2) { | |
| 78 pExternalIsolate = reinterpret_cast<v8::Isolate*>(pPlatform->m_isolate); | |
| 79 embedderDataSlot = pPlatform->m_v8EmbedderSlot; | |
| 80 } | |
| 81 FXJS_Initialize(embedderDataSlot, pExternalIsolate); | |
| 82 #endif | |
| 83 } | |
| 84 #ifndef PDF_ENABLE_XFA | |
| 85 FXJS_Initialize(embedderDataSlot, pExternalIsolate); | |
| 86 #else | |
| 87 m_isolateManaged = FXJS_GetIsolate(&m_isolate); | |
| 88 } | |
| 89 | |
| 90 v8::Isolate* isolate = m_isolate; | |
| 91 v8::Isolate::Scope isolate_scope(isolate); | |
| 92 v8::Locker locker(isolate); | |
| 93 v8::HandleScope handle_scope(isolate); | |
| 94 if (CPDFXFA_App::GetInstance()->IsJavaScriptInitialized()) { | |
| 95 CJS_Context* pContext = (CJS_Context*)NewContext(); | |
| 96 FXJS_InitializeRuntime(GetIsolate(), this, &m_context, &m_StaticObjects); | |
| 97 ReleaseContext(pContext); | |
| 98 return; | |
| 99 #endif | |
| 100 } | |
| 101 #ifndef PDF_ENABLE_XFA | |
| 102 m_isolateManaged = FXJS_GetIsolate(&m_isolate); | |
| 103 #else | |
| 104 | |
| 105 #endif | |
| 106 if (m_isolateManaged || FXJS_GlobalIsolateRefCount() == 0) | |
| 107 DefineJSObjects(); | |
| 108 | |
| 109 #ifdef PDF_ENABLE_XFA | |
| 110 CPDFXFA_App::GetInstance()->SetJavaScriptInitialized(TRUE); | |
| 111 | |
| 112 #endif | |
| 113 CJS_Context* pContext = (CJS_Context*)NewContext(); | |
| 114 FXJS_InitializeRuntime(GetIsolate(), this, &m_context, &m_StaticObjects); | |
| 115 ReleaseContext(pContext); | |
| 116 } | |
| 117 | |
| 118 CJS_Runtime::~CJS_Runtime() { | |
| 119 for (auto* obs : m_observers) | |
| 120 obs->OnDestroyed(); | |
| 121 | |
| 122 m_ContextArray.clear(); | |
| 123 m_ConstArrays.clear(); | |
| 124 FXJS_ReleaseRuntime(GetIsolate(), &m_context, &m_StaticObjects); | |
| 125 m_context.Reset(); | |
| 126 if (m_isolateManaged) | |
| 127 m_isolate->Dispose(); | |
| 128 } | |
| 129 | |
| 130 void CJS_Runtime::DefineJSObjects() { | |
| 131 v8::Isolate::Scope isolate_scope(GetIsolate()); | |
| 132 #ifdef PDF_ENABLE_XFA | |
| 133 v8::Locker locker(GetIsolate()); | |
| 134 #endif | |
| 135 v8::HandleScope handle_scope(GetIsolate()); | |
| 136 v8::Local<v8::Context> context = v8::Context::New(GetIsolate()); | |
| 137 v8::Context::Scope context_scope(context); | |
| 138 | |
| 139 // The call order determines the "ObjDefID" assigned to each class. | |
| 140 // ObjDefIDs 0 - 2 | |
| 141 CJS_Border::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 142 CJS_Display::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 143 CJS_Font::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 144 | |
| 145 // ObjDefIDs 3 - 5 | |
| 146 CJS_Highlight::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 147 CJS_Position::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 148 CJS_ScaleHow::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 149 | |
| 150 // ObjDefIDs 6 - 8 | |
| 151 CJS_ScaleWhen::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 152 CJS_Style::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 153 CJS_Zoomtype::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 154 | |
| 155 // ObjDefIDs 9 - 11 | |
| 156 CJS_App::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 157 CJS_Color::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 158 CJS_Console::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 159 | |
| 160 // ObjDefIDs 12 - 14 | |
| 161 CJS_Document::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_GLOBAL); | |
| 162 CJS_Event::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 163 CJS_Field::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); | |
| 164 | |
| 165 // ObjDefIDs 15 - 17 | |
| 166 CJS_Global::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 167 CJS_Icon::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); | |
| 168 CJS_Util::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_STATIC); | |
| 169 | |
| 170 // ObjDefIDs 18 - 20 (these can't fail, return void). | |
| 171 CJS_PublicMethods::DefineJSObjects(GetIsolate()); | |
| 172 CJS_GlobalConsts::DefineJSObjects(this); | |
| 173 CJS_GlobalArrays::DefineJSObjects(this); | |
| 174 | |
| 175 // ObjDefIDs 21 - 22. | |
| 176 CJS_TimerObj::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); | |
| 177 CJS_PrintParamsObj::DefineJSObjects(GetIsolate(), FXJSOBJTYPE_DYNAMIC); | |
| 178 } | |
| 179 | |
| 180 IJS_Context* CJS_Runtime::NewContext() { | |
| 181 m_ContextArray.push_back(std::unique_ptr<CJS_Context>(new CJS_Context(this))); | |
| 182 return m_ContextArray.back().get(); | |
| 183 } | |
| 184 | |
| 185 void CJS_Runtime::ReleaseContext(IJS_Context* pContext) { | |
| 186 for (auto it = m_ContextArray.begin(); it != m_ContextArray.end(); ++it) { | |
| 187 if (it->get() == static_cast<CJS_Context*>(pContext)) { | |
| 188 m_ContextArray.erase(it); | |
| 189 return; | |
| 190 } | |
| 191 } | |
| 192 } | |
| 193 | |
| 194 IJS_Context* CJS_Runtime::GetCurrentContext() { | |
| 195 return m_ContextArray.empty() ? nullptr : m_ContextArray.back().get(); | |
| 196 } | |
| 197 | |
| 198 void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc) { | |
| 199 if (m_pDocument != pReaderDoc) { | |
| 200 v8::Isolate::Scope isolate_scope(m_isolate); | |
| 201 #ifdef PDF_ENABLE_XFA | |
| 202 v8::Locker locker(m_isolate); | |
| 203 #endif | |
| 204 v8::HandleScope handle_scope(m_isolate); | |
| 205 v8::Local<v8::Context> context = | |
| 206 v8::Local<v8::Context>::New(m_isolate, m_context); | |
| 207 v8::Context::Scope context_scope(context); | |
| 208 | |
| 209 m_pDocument = pReaderDoc; | |
| 210 if (pReaderDoc) { | |
| 211 v8::Local<v8::Object> pThis = FXJS_GetThisObj(GetIsolate()); | |
| 212 if (!pThis.IsEmpty()) { | |
| 213 if (FXJS_GetObjDefnID(pThis) == CJS_Document::g_nObjDefnID) { | |
| 214 if (CJS_Document* pJSDocument = | |
| 215 (CJS_Document*)FXJS_GetPrivate(GetIsolate(), pThis)) { | |
| 216 if (Document* pDocument = (Document*)pJSDocument->GetEmbedObject()) | |
| 217 pDocument->AttachDoc(pReaderDoc); | |
| 218 } | |
| 219 } | |
| 220 } | |
| 221 } | |
| 222 } | |
| 223 } | |
| 224 | |
| 225 int CJS_Runtime::Execute(IJS_Context* cc, | |
| 226 const wchar_t* script, | |
| 227 CFX_WideString* info) { | |
| 228 FXJSErr error = {}; | |
| 229 int nRet = FXJS_Execute(m_isolate, cc, script, &error); | |
| 230 if (nRet < 0) { | |
| 231 info->Format(L"[ Line: %05d { %s } ] : %s", error.linnum - 1, error.srcline, | |
| 232 error.message); | |
| 233 } | |
| 234 return nRet; | |
| 235 } | |
| 236 | |
| 237 bool CJS_Runtime::AddEventToSet(const FieldEvent& event) { | |
| 238 return m_FieldEventSet.insert(event).second; | |
| 239 } | |
| 240 | |
| 241 void CJS_Runtime::RemoveEventFromSet(const FieldEvent& event) { | |
| 242 m_FieldEventSet.erase(event); | |
| 243 } | |
| 244 | |
| 245 v8::Local<v8::Context> CJS_Runtime::NewJSContext() { | |
| 246 return v8::Local<v8::Context>::New(m_isolate, m_context); | |
| 247 } | |
| 248 | |
| 249 void CJS_Runtime::SetConstArray(const CFX_WideString& name, | |
| 250 v8::Local<v8::Array> array) { | |
| 251 m_ConstArrays[name] = v8::Global<v8::Array>(m_isolate, array); | |
| 252 } | |
| 253 | |
| 254 v8::Local<v8::Array> CJS_Runtime::GetConstArray(const CFX_WideString& name) { | |
| 255 return v8::Local<v8::Array>::New(m_isolate, m_ConstArrays[name]); | |
| 256 } | |
| 257 | |
| 258 #ifdef PDF_ENABLE_XFA | |
| 259 CFX_WideString ChangeObjName(const CFX_WideString& str) { | |
| 260 CFX_WideString sRet = str; | |
| 261 sRet.Replace(L"_", L"."); | |
| 262 return sRet; | |
| 263 } | |
| 264 FX_BOOL CJS_Runtime::GetHValueByName(const CFX_ByteStringC& utf8Name, | |
| 265 FXJSE_HVALUE hValue) { | |
| 266 #ifdef PDF_ENABLE_XFA | |
| 267 const FX_CHAR* name = utf8Name.GetCStr(); | |
| 268 | |
| 269 v8::Locker lock(GetIsolate()); | |
| 270 v8::Isolate::Scope isolate_scope(GetIsolate()); | |
| 271 v8::HandleScope handle_scope(GetIsolate()); | |
| 272 v8::Local<v8::Context> old_context = GetIsolate()->GetCurrentContext(); | |
| 273 v8::Local<v8::Context> context = | |
| 274 v8::Local<v8::Context>::New(GetIsolate(), m_context); | |
| 275 v8::Context::Scope context_scope(context); | |
| 276 | |
| 277 // Caution: We're about to hand to XFA an object that in order to invoke | |
| 278 // methods will require that the current v8::Context always has a pointer | |
| 279 // to a CJS_Runtime in its embedder data slot. Unfortunately, XFA creates | |
| 280 // its own v8::Context which has not initialized the embedder data slot. | |
| 281 // Do so now. | |
| 282 // TODO(tsepez): redesign PDF-side objects to not rely on v8::Context's | |
| 283 // embedder data slots, and/or to always use the right context. | |
| 284 FXJS_SetRuntimeForV8Context(old_context, this); | |
| 285 | |
| 286 v8::Local<v8::Value> propvalue = | |
| 287 context->Global()->Get(v8::String::NewFromUtf8( | |
| 288 GetIsolate(), name, v8::String::kNormalString, utf8Name.GetLength())); | |
| 289 | |
| 290 if (propvalue.IsEmpty()) { | |
| 291 FXJSE_Value_SetUndefined(hValue); | |
| 292 return FALSE; | |
| 293 } | |
| 294 ((CFXJSE_Value*)hValue)->ForceSetValue(propvalue); | |
| 295 #endif | |
| 296 | |
| 297 return TRUE; | |
| 298 } | |
| 299 FX_BOOL CJS_Runtime::SetHValueByName(const CFX_ByteStringC& utf8Name, | |
| 300 FXJSE_HVALUE hValue) { | |
| 301 #ifdef PDF_ENABLE_XFA | |
| 302 if (utf8Name.IsEmpty() || hValue == NULL) | |
| 303 return FALSE; | |
| 304 const FX_CHAR* name = utf8Name.GetCStr(); | |
| 305 v8::Isolate* pIsolate = GetIsolate(); | |
| 306 v8::Locker lock(pIsolate); | |
| 307 v8::Isolate::Scope isolate_scope(pIsolate); | |
| 308 v8::HandleScope handle_scope(pIsolate); | |
| 309 v8::Local<v8::Context> context = | |
| 310 v8::Local<v8::Context>::New(pIsolate, m_context); | |
| 311 v8::Context::Scope context_scope(context); | |
| 312 | |
| 313 // v8::Local<v8::Context> tmpCotext = | |
| 314 // v8::Local<v8::Context>::New(GetIsolate(), m_context); | |
| 315 v8::Local<v8::Value> propvalue = v8::Local<v8::Value>::New( | |
| 316 GetIsolate(), ((CFXJSE_Value*)hValue)->DirectGetValue()); | |
| 317 context->Global()->Set( | |
| 318 v8::String::NewFromUtf8(pIsolate, name, v8::String::kNormalString, | |
| 319 utf8Name.GetLength()), | |
| 320 propvalue); | |
| 321 #endif | |
| 322 return TRUE; | |
| 323 } | |
| 324 | |
| 325 #endif | |
| 326 void CJS_Runtime::AddObserver(Observer* observer) { | |
| 327 ASSERT(!pdfium::ContainsKey(m_observers, observer)); | |
| 328 m_observers.insert(observer); | |
| 329 } | |
| 330 | |
| 331 void CJS_Runtime::RemoveObserver(Observer* observer) { | |
| 332 ASSERT(pdfium::ContainsKey(m_observers, observer)); | |
| 333 m_observers.erase(observer); | |
| 334 } | |
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Chromium Code Reviews
Issue 1847583004:
Move the fpdfsdk/include/javascript folder (Closed)
Base URL: https://pdfium.googlesource.com/pdfium.git@master