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 "../../../core/include/fxcrt/fx_basic.h" 8 #include "../../../core/include/fxcrt/fx_ext.h" 9 #include "../../include/jsapi/fxjs_v8.h" 10 #include "../../include/fsdk_define.h" 11 #include "time.h" 12 #include <cmath> 13 #include <limits> 14 15 #define VALUE_NAME_STRING L"string" 16 #define VALUE_NAME_NUMBER L"number" 17 #define VALUE_NAME_BOOLEAN L"boolean" 18 #define VALUE_NAME_DATE L"date" 19 #define VALUE_NAME_OBJECT L"object" 20 #define VALUE_NAME_FXOBJ L"fxobj" 21 #define VALUE_NAME_NULL L"null" 22 #define VALUE_NAME_UNDEFINED L"undefined" 23 24 const static FX_DWORD g_nan[2] = {0,0x7FF80000 }; 25 static double GetNan() 26 { 27 return *(double*)g_nan; 28 } 29 30 31 class CJS_PrivateData 32 { 33 public: 34 CJS_PrivateData():ObjDefID(-1), pPrivate(NULL) {} 35 int ObjDefID; 36 FX_LPVOID pPrivate; 37 }; 38 39 40 class CJS_ObjDefintion 41 { 42 public: 43 CJS_ObjDefintion(v8::Isolate* isolate, const wchar_t* sObjName, FXJSOBJTYPE eObjType, LP_CONSTRUCTOR pConstructor, LP_DESTRUCTOR pDestructor, unsigned bApplyNew): 44 objName(sObjName), objType(eObjType), m_pConstructor(pConstructor), m_pDestructor(pDestructor),m_bApplyNew(bApplyNew),m_bSetAsGlobalObject(FALSE) 45 { 46 v8::Isolate::Scope isolate_scope(isolate); 47 v8::HandleScope handle_scope(isolate); 48 49 v8::Local<v8::ObjectTemplate> objTemplate = v8::ObjectTemplate::New(isolate); 50 objTemplate->SetInternalFieldCount(2); 51 m_objTemplate.Reset(isolate, objTemplate); 52 53 //Document as the global object. 54 if(FXSYS_wcscmp(sObjName, L"Document") == 0) 55 { 56 m_bSetAsGlobalObject = TRUE; 57 } 58 59 } 60 ~CJS_ObjDefintion() 61 { 62 m_objTemplate.Reset(); 63 m_StaticObj.Reset(); 64 } 65 public: 66 const wchar_t* objName; 67 FXJSOBJTYPE objType; 68 LP_CONSTRUCTOR m_pConstructor; 69 LP_DESTRUCTOR m_pDestructor; 70 unsigned m_bApplyNew; 71 FX_BOOL m_bSetAsGlobalObject; 72 73 v8::Global<v8::ObjectTemplate> m_objTemplate; 74 v8::Global<v8::Object> m_StaticObj; 75 }; 76 77 int JS_DefineObj(IJS_Runtime* pJSRuntime, const wchar_t* sObjName, FXJSOBJTYPE eObjType, LP_CONSTRUCTOR pConstructor, LP_DESTRUCTOR pDestructor, unsigned bApplyNew) 78 { 79 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 80 v8::Isolate::Scope isolate_scope(isolate); 81 v8::HandleScope handle_scope(isolate); 82 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 83 if(!pArray) 84 { 85 pArray = new CFX_PtrArray(); 86 isolate->SetData(0, pArray); 87 } 88 CJS_ObjDefintion* pObjDef = new CJS_ObjDefintion(isolate, sObjName, eObjType, pConstructor, pDestructor, bApplyNew); 89 pArray->Add(pObjDef); 90 return pArray->GetSize()-1; 91 } 92 93 int JS_DefineObjMethod(IJS_Runtime* pJSRuntime, int nObjDefnID, const wchar_t* sMethodName, v8::FunctionCallback pMethodCall) 94 { 95 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 96 v8::Isolate::Scope isolate_scope(isolate); 97 v8::HandleScope handle_scope(isolate); 98 99 CFX_WideString ws = CFX_WideString(sMethodName); 100 CFX_ByteString bsMethodName = ws.UTF8Encode(); 101 102 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 103 if(!pArray) return 0; 104 105 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return 0; 106 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 107 v8::Local<v8::ObjectTemplate> objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate); 108 objTemp->Set(v8::String::NewFromUtf8(isolate, FX_LPCSTR(bsMethodName), v8::NewStringType::kNormal).ToLocalChecked(), v8::FunctionTemplate::New(isolate, pMethodCall), v8::ReadOnly); 109 pObjDef->m_objTemplate.Reset(isolate,objTemp); 110 return 0; 111 } 112 113 int JS_DefineObjProperty(IJS_Runtime* pJSRuntime, int nObjDefnID, const wchar_t* sPropName, v8::AccessorGetterCallback pPropGet, v8::AccessorSetterCallback pPropPut) 114 { 115 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 116 v8::Isolate::Scope isolate_scope(isolate); 117 v8::HandleScope handle_scope(isolate); 118 119 CFX_WideString ws = CFX_WideString(sPropName); 120 CFX_ByteString bsPropertyName = ws.UTF8Encode(); 121 122 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 123 if(!pArray) return 0; 124 125 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return 0; 126 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 127 v8::Local<v8::ObjectTemplate> objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate); 128 objTemp->SetAccessor(v8::String::NewFromUtf8(isolate, FX_LPCSTR(bsPropertyName), v8::NewStringType::kNormal).ToLocalChecked(), pPropGet, pPropPut); 129 pObjDef->m_objTemplate.Reset(isolate,objTemp); 130 return 0; 131 } 132 133 int JS_DefineObjAllProperties(IJS_Runtime* pJSRuntime, int nObjDefnID, v8::NamedPropertyQueryCallback pPropQurey, v8::NamedPropertyGetterCallback pPropGet, v8::NamedPropertySetterCallback pPropPut, v8::NamedPropertyDeleterCallback pPropDel) 134 { 135 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 136 v8::Isolate::Scope isolate_scope(isolate); 137 v8::HandleScope handle_scope(isolate); 138 139 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 140 if(!pArray) return 0; 141 142 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return 0; 143 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 144 v8::Local<v8::ObjectTemplate> objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate); 145 objTemp->SetNamedPropertyHandler(pPropGet, pPropPut, pPropQurey, pPropDel); 146 pObjDef->m_objTemplate.Reset(isolate,objTemp); 147 return 0; 148 } 149 150 int JS_DefineObjConst(IJS_Runtime* pJSRuntime, int nObjDefnID, const wchar_t* sConstName, v8::Local<v8::Value> pDefault) 151 { 152 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 153 v8::Isolate::Scope isolate_scope(isolate); 154 v8::HandleScope handle_scope(isolate); 155 156 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 157 if(!pArray) return 0; 158 159 CFX_WideString ws = CFX_WideString(sConstName); 160 CFX_ByteString bsConstName = ws.UTF8Encode(); 161 162 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return 0; 163 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 164 v8::Local<v8::ObjectTemplate> objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate); 165 objTemp->Set(isolate, FX_LPCSTR(bsConstName), pDefault); 166 pObjDef->m_objTemplate.Reset(isolate,objTemp); 167 return 0; 168 } 169 170 static v8::Global<v8::ObjectTemplate>& _getGlobalObjectTemplate(IJS_Runtime* pJSRuntime) 171 { 172 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 173 v8::Isolate::Scope isolate_scope(isolate); 174 v8::HandleScope handle_scope(isolate); 175 176 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 177 ASSERT(pArray != NULL); 178 for(int i=0; i<pArray->GetSize(); i++) 179 { 180 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i); 181 if(pObjDef->m_bSetAsGlobalObject) 182 return pObjDef->m_objTemplate; 183 } 184 static v8::Global<v8::ObjectTemplate> gloabalObjectTemplate; 185 return gloabalObjectTemplate; 186 } 187 188 int JS_DefineGlobalMethod(IJS_Runtime* pJSRuntime, const wchar_t* sMethodName, v8::FunctionCallback pMethodCall) 189 { 190 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 191 v8::Isolate::Scope isolate_scope(isolate); 192 v8::HandleScope handle_scope(isolate); 193 194 CFX_WideString ws = CFX_WideString(sMethodName); 195 CFX_ByteString bsMethodName = ws.UTF8Encode(); 196 197 v8::Local<v8::FunctionTemplate> funTempl = v8::FunctionTemplate::New(isolate, pMethodCall); 198 v8::Local<v8::ObjectTemplate> objTemp; 199 200 v8::Global<v8::ObjectTemplate>& globalObjTemp = _getGlobalObjectTemplate(pJSRuntime); 201 if(globalObjTemp.IsEmpty()) 202 objTemp = v8::ObjectTemplate::New(isolate); 203 else 204 objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp); 205 objTemp->Set(v8::String::NewFromUtf8(isolate, FX_LPCSTR(bsMethodName), v8::NewStringType::kNormal).ToLocalChecked(), funTempl, v8::ReadOnly); 206 207 globalObjTemp.Reset(isolate,objTemp); 208 209 return 0; 210 } 211 212 int JS_DefineGlobalConst(IJS_Runtime* pJSRuntime, const wchar_t* sConstName, v8::Local<v8::Value> pDefault) 213 { 214 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 215 v8::Isolate::Scope isolate_scope(isolate); 216 v8::HandleScope handle_scope(isolate); 217 218 CFX_WideString ws = CFX_WideString(sConstName); 219 CFX_ByteString bsConst= ws.UTF8Encode(); 220 221 v8::Local<v8::ObjectTemplate> objTemp; 222 223 v8::Global<v8::ObjectTemplate>& globalObjTemp = _getGlobalObjectTemplate(pJSRuntime); 224 if(globalObjTemp.IsEmpty()) 225 objTemp = v8::ObjectTemplate::New(isolate); 226 else 227 objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp); 228 objTemp->Set(v8::String::NewFromUtf8(isolate, FX_LPCSTR(bsConst), v8::NewStringType::kNormal).ToLocalChecked(), pDefault, v8::ReadOnly); 229 230 globalObjTemp.Reset(isolate,objTemp); 231 232 return 0; 233 } 234 235 236 void JS_InitialRuntime(IJS_Runtime* pJSRuntime,IFXJS_Runtime* pFXRuntime, IFXJS_Context* context, v8::Global<v8::Context>& v8PersistentContext) 237 { 238 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 239 v8::Isolate::Scope isolate_scope(isolate); 240 v8::HandleScope handle_scope(isolate); 241 242 v8::Global<v8::ObjectTemplate>& globalObjTemp = _getGlobalObjectTemplate(pJSRuntime); 243 v8::Local<v8::Context> v8Context = v8::Context::New(isolate, NULL, v8::Local<v8::ObjectTemplate>::New(isolate, globalObjTemp)); 244 v8::Context::Scope context_scope(v8Context); 245 246 v8::Local<v8::External> ptr = v8::External::New(isolate, pFXRuntime); 247 v8Context->SetEmbedderData(1, ptr); 248 249 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 250 if(!pArray) return; 251 252 for(int i=0; i<pArray->GetSize(); i++) 253 { 254 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i); 255 CFX_WideString ws = CFX_WideString(pObjDef->objName); 256 CFX_ByteString bs = ws.UTF8Encode(); 257 v8::Local<v8::String> objName = v8::String::NewFromUtf8(isolate, bs.c_str(), v8::NewStringType::kNormal, bs.GetLength()).ToLocalChecked(); 258 259 260 if(pObjDef->objType == JS_DYNAMIC) 261 { 262 //Document is set as global object, need to construct it first. 263 if(ws.Equal(L"Document")) 264 { 265 266 CJS_PrivateData* pPrivateData = new CJS_PrivateData; 267 pPrivateData->ObjDefID = i; 268 269 v8Context->Global()->GetPrototype()->ToObject(v8Context).ToLocalChecked()->SetAlignedPointerInInternalField(0, pPrivateData); 270 271 if(pObjDef->m_pConstructor) 272 pObjDef->m_pConstructor(context, v8Context->Global()->GetPrototype()->ToObject(v8Context).ToLocalChecked(), v8Context->Global()->GetPrototype()->ToObject(v8Context).ToLocalChecked()); 273 } 274 } 275 else 276 { 277 v8::Local<v8::Object> obj = JS_NewFxDynamicObj(pJSRuntime, context, i); 278 v8Context->Global()->Set(v8Context, objName, obj).FromJust(); 279 pObjDef->m_StaticObj.Reset(isolate, obj); 280 } 281 } 282 v8PersistentContext.Reset(isolate, v8Context); 283 } 284 285 void JS_ReleaseRuntime(IJS_Runtime* pJSRuntime, v8::Global<v8::Context>& v8PersistentContext) 286 { 287 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 288 v8::Isolate::Scope isolate_scope(isolate); 289 v8::HandleScope handle_scope(isolate); 290 v8::Local<v8::Context> context = v8::Local<v8::Context>::New(isolate, v8PersistentContext); 291 v8::Context::Scope context_scope(context); 292 293 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 294 if(!pArray) return ; 295 296 for(int i=0; i<pArray->GetSize(); i++) 297 { 298 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i); 299 if(!pObjDef->m_StaticObj.IsEmpty()) 300 { 301 v8::Local<v8::Object> pObj = v8::Local<v8::Object>::New(isolate, pObjDef->m_StaticObj); 302 if(pObjDef->m_pDestructor) 303 pObjDef->m_pDestructor(pObj); 304 JS_FreePrivate(pObj); 305 } 306 delete pObjDef; 307 } 308 delete pArray; 309 isolate->SetData(0,NULL); 310 } 311 312 void JS_Initial() 313 { 314 } 315 void JS_Release() 316 { 317 318 } 319 int JS_Parse(IJS_Runtime* pJSRuntime, IFXJS_Context* pJSContext, const wchar_t* script, long length, FXJSErr* perror) 320 { 321 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 322 v8::Isolate::Scope isolate_scope(isolate); 323 v8::TryCatch try_catch(isolate); 324 325 CFX_WideString wsScript(script); 326 CFX_ByteString bsScript = wsScript.UTF8Encode(); 327 328 329 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 330 v8::Local<v8::Script> compiled_script; 331 if (!v8::Script::Compile(context, v8::String::NewFromUtf8(isolate, bsScript.c_str(), v8::NewStringType::kNormal, bsScript.GetLength()).ToLocalChecked()).ToLocal(&compiled_script)) { 332 v8::String::Utf8Value error(try_catch.Exception()); 333 return -1; 334 } 335 return 0; 336 } 337 338 int JS_Execute(IJS_Runtime* pJSRuntime, IFXJS_Context* pJSContext, const wchar_t* script, long length, FXJSErr* perror) 339 { 340 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 341 v8::Isolate::Scope isolate_scope(isolate); 342 v8::TryCatch try_catch(isolate); 343 344 CFX_WideString wsScript(script); 345 CFX_ByteString bsScript = wsScript.UTF8Encode(); 346 347 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 348 v8::Local<v8::Script> compiled_script; 349 if (!v8::Script::Compile(context, v8::String::NewFromUtf8(isolate, bsScript.c_str(), v8::NewStringType::kNormal, bsScript.GetLength()).ToLocalChecked()).ToLocal(&compiled_script)) { 350 v8::String::Utf8Value error(try_catch.Exception()); 351 return -1; 352 } 353 354 v8::Local<v8::Value> result; 355 if (!compiled_script->Run(context).ToLocal(&result)) { 356 v8::String::Utf8Value error(try_catch.Exception()); 357 return -1; 358 } 359 return 0; 360 } 361 362 v8::Local<v8::Object> JS_NewFxDynamicObj(IJS_Runtime* pJSRuntime, IFXJS_Context* pJSContext, int nObjDefnID) 363 { 364 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 365 v8::Isolate::Scope isolate_scope(isolate); 366 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 367 if(-1 == nObjDefnID) 368 { 369 v8::Local<v8::ObjectTemplate> objTempl = v8::ObjectTemplate::New(isolate); 370 v8::Local<v8::Object> obj; 371 if (objTempl->NewInstance(context).ToLocal(&obj)) return obj; 372 return v8::Local<v8::Object>(); 373 } 374 375 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 376 if(!pArray) return v8::Local<v8::Object>(); 377 378 379 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return v8::Local<v8::Object>(); 380 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 381 382 v8::Local<v8::ObjectTemplate> objTemp = v8::Local<v8::ObjectTemplate>::New(isolate, pObjDef->m_objTemplate); 383 v8::Local<v8::Object> obj; 384 if (!objTemp->NewInstance(context).ToLocal(&obj)) return v8::Local<v8::Object>(); 385 386 CJS_PrivateData* pPrivateData = new CJS_PrivateData; 387 pPrivateData->ObjDefID = nObjDefnID; 388 389 obj->SetAlignedPointerInInternalField(0, pPrivateData); 390 if(pObjDef->m_pConstructor) 391 pObjDef->m_pConstructor(pJSContext, obj, context->Global()->GetPrototype()->ToObject(context).ToLocalChecked()); 392 393 return obj; 394 } 395 396 v8::Local<v8::Object> JS_GetStaticObj(IJS_Runtime* pJSRuntime, int nObjDefnID) 397 { 398 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 399 v8::Isolate::Scope isolate_scope(isolate); 400 401 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 402 if(!pArray) return v8::Local<v8::Object>(); 403 404 if(nObjDefnID<0 || nObjDefnID>= pArray->GetSize()) return v8::Local<v8::Object>(); 405 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(nObjDefnID); 406 v8::Local<v8::Object> obj = v8::Local<v8::Object>::New(isolate,pObjDef->m_StaticObj); 407 return obj; 408 } 409 410 void JS_SetThisObj(IJS_Runtime* pJSRuntime, int nThisObjID) 411 { 412 //Do nothing. 413 } 414 v8::Local<v8::Object> JS_GetThisObj(IJS_Runtime * pJSRuntime) 415 { 416 //Return the global object. 417 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 418 v8::Isolate::Scope isolate_scope(isolate); 419 420 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 421 if(!pArray) return v8::Local<v8::Object>(); 422 423 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 424 return context->Global()->GetPrototype()->ToObject(context).ToLocalChecked(); 425 } 426 427 int JS_GetObjDefnID(v8::Local<v8::Object> pObj) 428 { 429 if(pObj.IsEmpty() || !pObj->InternalFieldCount()) return -1; 430 CJS_PrivateData* pPrivateData = (CJS_PrivateData*)pObj->GetAlignedPointerFromInternalField(0); 431 if(pPrivateData) 432 return pPrivateData->ObjDefID; 433 return -1; 434 } 435 436 IJS_Runtime* JS_GetRuntime(v8::Local<v8::Object> pObj) 437 { 438 if(pObj.IsEmpty()) return NULL; 439 v8::Local<v8::Context> context = pObj->CreationContext(); 440 if(context.IsEmpty()) return NULL; 441 return context->GetIsolate(); 442 } 443 444 int JS_GetObjDefnID(IJS_Runtime * pJSRuntime, const wchar_t* pObjName) 445 { 446 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 447 v8::Isolate::Scope isolate_scope(isolate); 448 449 CFX_PtrArray* pArray = (CFX_PtrArray*)isolate->GetData(0); 450 if(!pArray) return -1; 451 452 for(int i=0; i<pArray->GetSize(); i++) 453 { 454 CJS_ObjDefintion* pObjDef = (CJS_ObjDefintion*)pArray->GetAt(i); 455 if(FXSYS_wcscmp(pObjDef->objName, pObjName) == 0) 456 return i; 457 } 458 return -1; 459 } 460 461 void JS_Error(v8::Isolate* isolate, const CFX_WideString& message) 462 { 463 // Conversion from pdfium's wchar_t wide-strings to v8's uint16_t 464 // wide-strings isn't handled by v8, so use UTF8 as a common 465 // intermediate format. 466 CFX_ByteString utf8_message = message.UTF8Encode(); 467 isolate->ThrowException(v8::String::NewFromUtf8(isolate, 468 utf8_message.c_str(), 469 v8::NewStringType::kNormal).ToLocalChecked()); 470 } 471 472 unsigned JS_CalcHash(const wchar_t* main, unsigned nLen) 473 { 474 return (unsigned)FX_HashCode_String_GetW(main, nLen); 475 } 476 477 unsigned JS_CalcHash(const wchar_t* main) 478 { 479 return (unsigned)FX_HashCode_String_GetW(main, FXSYS_wcslen(main)); 480 } 481 const wchar_t* JS_GetTypeof(v8::Local<v8::Value> pObj) 482 { 483 if(pObj.IsEmpty()) return NULL; 484 if(pObj->IsString()) 485 return VALUE_NAME_STRING; 486 if(pObj->IsNumber()) 487 return VALUE_NAME_NUMBER; 488 if(pObj->IsBoolean()) 489 return VALUE_NAME_BOOLEAN; 490 if(pObj->IsDate()) 491 return VALUE_NAME_DATE; 492 if(pObj->IsObject()) 493 return VALUE_NAME_OBJECT; 494 if(pObj->IsNull()) 495 return VALUE_NAME_NULL; 496 if(pObj->IsUndefined()) 497 return VALUE_NAME_UNDEFINED; 498 return NULL; 499 500 } 501 void JS_SetPrivate(v8::Local<v8::Object> pObj, void* p) 502 { 503 JS_SetPrivate(NULL, pObj, p); 504 } 505 506 void* JS_GetPrivate(v8::Local<v8::Object> pObj) 507 { 508 return JS_GetPrivate(NULL,pObj); 509 } 510 511 void JS_SetPrivate(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj, void* p) 512 { 513 if(pObj.IsEmpty() || !pObj->InternalFieldCount()) return; 514 CJS_PrivateData* pPrivateData = (CJS_PrivateData*)pObj->GetAlignedPointerFromInternalField(0); 515 if(!pPrivateData) return; 516 pPrivateData->pPrivate = p; 517 } 518 519 void* JS_GetPrivate(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj) 520 { 521 if(pObj.IsEmpty()) return NULL; 522 CJS_PrivateData* pPrivateData = NULL; 523 if(pObj->InternalFieldCount()) 524 pPrivateData = (CJS_PrivateData*)pObj->GetAlignedPointerFromInternalField(0); 525 else 526 { 527 //It could be a global proxy object. 528 v8::Local<v8::Value> v = pObj->GetPrototype(); 529 v8::Isolate* isolate = (v8::Isolate*)pJSRuntime; 530 v8::Local<v8::Context> context = isolate->GetCurrentContext(); 531 if(v->IsObject()) 532 pPrivateData = (CJS_PrivateData*)v->ToObject(context).ToLocalChecked()->GetAlignedPointerFromInternalField(0); 533 } 534 if(!pPrivateData) return NULL; 535 return pPrivateData->pPrivate; 536 } 537 538 void JS_FreePrivate(void* pPrivateData) 539 { 540 delete (CJS_PrivateData*)pPrivateData; 541 } 542 543 void JS_FreePrivate(v8::Local<v8::Object> pObj) 544 { 545 if(pObj.IsEmpty() || !pObj->InternalFieldCount()) return; 546 JS_FreePrivate(pObj->GetAlignedPointerFromInternalField(0)); 547 pObj->SetAlignedPointerInInternalField(0, NULL); 548 } 549 550 551 v8::Local<v8::Value> JS_GetObjectValue(v8::Local<v8::Object> pObj) 552 { 553 return pObj; 554 } 555 556 v8::Local<v8::String> WSToJSString(IJS_Runtime* pJSRuntime, const wchar_t* PropertyName, int Len = -1) 557 { 558 CFX_WideString ws = CFX_WideString(PropertyName,Len); 559 CFX_ByteString bs = ws.UTF8Encode(); 560 if(!pJSRuntime) pJSRuntime = v8::Isolate::GetCurrent(); 561 return v8::String::NewFromUtf8(pJSRuntime, bs.c_str(), v8::NewStringType::kNormal).ToLocalChecked(); 562 } 563 564 v8::Local<v8::Value> JS_GetObjectElement(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj,const wchar_t* PropertyName) 565 { 566 if(pObj.IsEmpty()) return v8::Local<v8::Value>(); 567 v8::Local<v8::Value> val; 568 if (!pObj->Get(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName)).ToLocal(&val)) return v8::Local<v8::Value>(); 569 return val; 570 } 571 572 v8::Local<v8::Array> JS_GetObjectElementNames(IJS_Runtime* pJSRuntime, v8::Local<v8::Object> pObj) 573 { 574 if(pObj.IsEmpty()) return v8::Local<v8::Array>(); 575 v8::Local<v8::Array> val; 576 if (!pObj->GetPropertyNames(pJSRuntime->GetCurrentContext()).ToLocal(&val)) return v8::Local<v8::Array>(); 577 return val; 578 } 579 580 void JS_PutObjectString(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, const wchar_t* sValue) //VT_string 581 { 582 if(pObj.IsEmpty()) return; 583 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime, PropertyName), WSToJSString(pJSRuntime, sValue)).FromJust(); 584 } 585 586 void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, int nValue) 587 { 588 if(pObj.IsEmpty()) return; 589 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),v8::Int32::New(pJSRuntime, nValue)).FromJust(); 590 } 591 592 void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, float fValue) 593 { 594 if(pObj.IsEmpty()) return; 595 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),v8::Number::New(pJSRuntime, (double)fValue)).FromJust(); 596 } 597 598 void JS_PutObjectNumber(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, double dValue) 599 { 600 if(pObj.IsEmpty()) return; 601 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),v8::Number::New(pJSRuntime, (double)dValue)).FromJust(); 602 } 603 604 void JS_PutObjectBoolean(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, bool bValue) 605 { 606 if(pObj.IsEmpty()) return; 607 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),v8::Boolean::New(pJSRuntime, bValue)).FromJust(); 608 } 609 610 void JS_PutObjectObject(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName, v8::Local<v8::Object> pPut) 611 { 612 if(pObj.IsEmpty()) return; 613 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),pPut).FromJust(); 614 } 615 616 void JS_PutObjectNull(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj, const wchar_t* PropertyName) 617 { 618 if(pObj.IsEmpty()) return; 619 pObj->Set(pJSRuntime->GetCurrentContext(), WSToJSString(pJSRuntime,PropertyName),v8::Local<v8::Object>()).FromJust(); 620 } 621 622 v8::Local<v8::Array> JS_NewArray(IJS_Runtime* pJSRuntime) 623 { 624 return v8::Array::New(pJSRuntime); 625 } 626 627 unsigned JS_PutArrayElement(IJS_Runtime* pJSRuntime, v8::Local<v8::Array> pArray,unsigned index,v8::Local<v8::Value> pValue,FXJSVALUETYPE eType) 628 { 629 if(pArray.IsEmpty()) return 0; 630 if (pArray->Set(pJSRuntime->GetCurrentContext(), index, pValue).IsNothing()) return 0; 631 return 1; 632 } 633 634 v8::Local<v8::Value> JS_GetArrayElement(IJS_Runtime* pJSRuntime, v8::Local<v8::Array> pArray,unsigned index) 635 { 636 if(pArray.IsEmpty()) return v8::Local<v8::Value>(); 637 v8::Local<v8::Value> val; 638 if (pArray->Get(pJSRuntime->GetCurrentContext(), index).ToLocal(&val)) return v8::Local<v8::Value>(); 639 return val; 640 } 641 642 unsigned JS_GetArrayLength(v8::Local<v8::Array> pArray) 643 { 644 if(pArray.IsEmpty()) return 0; 645 return pArray->Length(); 646 } 647 648 v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime,int number) 649 { 650 return v8::Int32::New(pJSRuntime, number); 651 } 652 653 v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime,double number) 654 { 655 return v8::Number::New(pJSRuntime, number); 656 } 657 658 v8::Local<v8::Value> JS_NewNumber(IJS_Runtime* pJSRuntime,float number) 659 { 660 return v8::Number::New(pJSRuntime, (float)number); 661 } 662 663 v8::Local<v8::Value> JS_NewBoolean(IJS_Runtime* pJSRuntime,bool b) 664 { 665 return v8::Boolean::New(pJSRuntime, b); 666 } 667 668 v8::Local<v8::Value> JS_NewObject(IJS_Runtime* pJSRuntime,v8::Local<v8::Object> pObj) 669 { 670 if(pObj.IsEmpty()) return v8::Local<v8::Value>(); 671 return pObj->Clone(); 672 } 673 674 v8::Local<v8::Value> JS_NewObject2(IJS_Runtime* pJSRuntime,v8::Local<v8::Array> pObj) 675 { 676 if(pObj.IsEmpty()) return v8::Local<v8::Value>(); 677 return pObj->Clone(); 678 } 679 680 681 v8::Local<v8::Value> JS_NewString(IJS_Runtime* pJSRuntime,const wchar_t* string) 682 { 683 return WSToJSString(pJSRuntime, string); 684 } 685 686 v8::Local<v8::Value> JS_NewString(IJS_Runtime* pJSRuntime,const wchar_t* string, unsigned nLen) 687 { 688 return WSToJSString(pJSRuntime, string, nLen); 689 } 690 691 v8::Local<v8::Value> JS_NewNull() 692 { 693 return v8::Local<v8::Value>(); 694 } 695 696 v8::Local<v8::Value> JS_NewDate(IJS_Runtime* pJSRuntime,double d) 697 { 698 return v8::Date::New(pJSRuntime->GetCurrentContext(), d).ToLocalChecked(); 699 } 700 701 v8::Local<v8::Value> JS_NewValue(IJS_Runtime* pJSRuntime) 702 { 703 return v8::Local<v8::Value>(); 704 } 705 706 v8::Local<v8::Value> JS_GetListValue(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pList, int index) 707 { 708 709 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 710 if(!pList.IsEmpty() && pList->IsObject()) 711 { 712 v8::Local<v8::Object> obj; 713 if (pList->ToObject(context).ToLocal(&obj)) 714 { 715 v8::Local<v8::Value> val; 716 if (obj->Get(context, index).ToLocal(&val)) return val; 717 } 718 } 719 return v8::Local<v8::Value>(); 720 } 721 722 int JS_ToInt32(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 723 { 724 if(pValue.IsEmpty()) return 0; 725 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 726 return pValue->ToInt32(context).ToLocalChecked()->Value(); 727 } 728 729 bool JS_ToBoolean(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 730 { 731 if(pValue.IsEmpty()) return false; 732 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 733 return pValue->ToBoolean(context).ToLocalChecked()->Value(); 734 } 735 736 double JS_ToNumber(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 737 { 738 if(pValue.IsEmpty()) return 0.0; 739 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 740 return pValue->ToNumber(context).ToLocalChecked()->Value(); 741 } 742 743 v8::Local<v8::Object> JS_ToObject(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 744 { 745 if(pValue.IsEmpty()) return v8::Local<v8::Object>(); 746 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 747 return pValue->ToObject(context).ToLocalChecked(); 748 } 749 750 CFX_WideString JS_ToString(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 751 { 752 if(pValue.IsEmpty()) return L""; 753 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 754 v8::String::Utf8Value s(pValue->ToString(context).ToLocalChecked()); 755 return CFX_WideString::FromUTF8(*s, s.length()); 756 } 757 758 v8::Local<v8::Array> JS_ToArray(IJS_Runtime* pJSRuntime, v8::Local<v8::Value> pValue) 759 { 760 if(pValue.IsEmpty()) return v8::Local<v8::Array>(); 761 v8::Local<v8::Context> context = pJSRuntime->GetCurrentContext(); 762 return v8::Local<v8::Array>::Cast(pValue->ToObject(context).ToLocalChecked()); 763 } 764 765 void JS_ValueCopy(v8::Local<v8::Value>& pTo, v8::Local<v8::Value> pFrom) 766 { 767 pTo = pFrom; 768 } 769 770 771 //JavaScript time implement begin. 772 773 double _getLocalTZA() 774 { 775 if(!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) 776 return 0; 777 time_t t = 0; 778 time(&t); 779 localtime(&t); 780 #if _MSC_VER >= 1900 781 // In gcc and in Visual Studio prior to VS 2015 'timezone' is a global 782 // variable declared in time.h. That variable was deprecated and in VS 2015 783 // is removed, with _get_timezone replacing it. 784 long timezone = 0; 785 _get_timezone(&timezone); 786 #endif 787 return (double)(-(timezone * 1000)); 788 } 789 790 int _getDaylightSavingTA(double d) 791 { 792 if(!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) 793 return 0; 794 time_t t = (time_t)(d/1000); 795 struct tm * tmp = localtime(&t); 796 if (tmp == NULL) 797 return 0; 798 if (tmp->tm_isdst > 0) 799 //One hour. 800 return (int)60*60*1000; 801 return 0; 802 } 803 804 double _Mod(double x, double y) 805 { 806 double r = fmod(x, y); 807 if (r < 0) r += y; 808 return r; 809 } 810 811 int _isfinite(double v) 812 { 813 #if _MSC_VER 814 return ::_finite(v); 815 #else 816 return std::fabs(v) < std::numeric_limits<double>::max(); 817 #endif 818 } 819 820 double _toInteger(double n) 821 { 822 return (n >= 0)? FXSYS_floor(n): -FXSYS_floor(-n); 823 } 824 825 bool _isLeapYear(int year) 826 { 827 return (year%4==0)&&((year%100!=0)||(year%400!=0)); 828 } 829 830 int _DayFromYear(int y) 831 { 832 return (int)(365*(y - 1970.0) + FXSYS_floor((y - 1969.0)/4) - FXSYS_floor((y - 1901.0)/100)+FXSYS_floor((y - 1601.0)/400)); 833 } 834 835 double _TimeFromYear(int y) 836 { 837 return ((double)86400000) * _DayFromYear(y); 838 } 839 840 double _TimeFromYearMonth(int y, int m) 841 { 842 static int daysMonth[12] ={ 0,31,59,90,120,151,181,212,243,273,304,334}; 843 static int leapDaysMonth[12] = { 0,31,60,91,121,152,182,213,244,274,305,335}; 844 int* pMonth = daysMonth; 845 if(_isLeapYear(y)) 846 pMonth = leapDaysMonth; 847 return _TimeFromYear(y) + ((double)pMonth[m])*86400000; 848 } 849 850 int _Day(double t) 851 { 852 return (int)FXSYS_floor(t / 86400000); 853 } 854 855 int _YearFromTime(double t) 856 { 857 //estimate the time. 858 int y = 1970 +(int)(t/(365.0*86400000)); 859 if (_TimeFromYear(y) <= t) 860 { 861 while(_TimeFromYear(y+1) <= t) y++; 862 } 863 else 864 while(_TimeFromYear(y-1) > t) y--; 865 return y; 866 } 867 868 int _DayWithinYear(double t) 869 { 870 int year = _YearFromTime(t); 871 int day = _Day(t); 872 return day-_DayFromYear(year); 873 } 874 875 int _MonthFromTime(double t) 876 { 877 int day = _DayWithinYear(t); 878 int year = _YearFromTime(t); 879 if(0<=day && day <31) 880 return 0; 881 if(31<=day && day< 59+_isLeapYear(year)) 882 return 1; 883 if((59+_isLeapYear(year))<=day && day<(90+_isLeapYear(year))) 884 return 2; 885 if((90+_isLeapYear(year))<=day && day<(120+_isLeapYear(year))) 886 return 3; 887 if((120+_isLeapYear(year))<=day && day<(151+_isLeapYear(year))) 888 return 4; 889 if((151+_isLeapYear(year))<=day && day<(181+_isLeapYear(year))) 890 return 5; 891 if((181+_isLeapYear(year))<=day && day<(212+_isLeapYear(year))) 892 return 6; 893 if((212+_isLeapYear(year))<=day && day<(243+_isLeapYear(year))) 894 return 7; 895 if((243+_isLeapYear(year))<=day && day<(273+_isLeapYear(year))) 896 return 8; 897 if((273+_isLeapYear(year))<=day && day<(304+_isLeapYear(year))) 898 return 9; 899 if((304+_isLeapYear(year))<=day && day<(334+_isLeapYear(year))) 900 return 10; 901 if((334+_isLeapYear(year))<=day && day<(365+_isLeapYear(year))) 902 return 11; 903 904 return -1; 905 } 906 907 int _DateFromTime(double t) 908 { 909 int day = _DayWithinYear(t); 910 int year = _YearFromTime(t); 911 bool leap = _isLeapYear(year); 912 int month = _MonthFromTime(t); 913 switch (month) 914 { 915 case 0: 916 return day+1; 917 case 1: 918 return day-30; 919 case 2: 920 return day-58-leap; 921 case 3: 922 return day-89-leap; 923 case 4: 924 return day-119-leap; 925 case 5: 926 return day-150-leap; 927 case 6: 928 return day-180-leap; 929 case 7: 930 return day-211-leap; 931 case 8: 932 return day-242-leap; 933 case 9: 934 return day-272-leap; 935 case 10: 936 return day-303-leap; 937 case 11: 938 return day-333-leap; 939 default: 940 return 0; 941 } 942 } 943 944 double JS_GetDateTime() 945 { 946 if(!FSDK_IsSandBoxPolicyEnabled(FPDF_POLICY_MACHINETIME_ACCESS)) 947 return 0; 948 time_t t = time(NULL); 949 struct tm* pTm = localtime(&t); 950 951 int year = pTm->tm_year+1900; 952 double t1 = _TimeFromYear(year); 953 954 return t1 + pTm->tm_yday*86400000.0 + pTm->tm_hour*3600000.0+pTm->tm_min*60000.0+pTm->tm_sec*1000.0; 955 } 956 957 int JS_GetYearFromTime(double dt) 958 { 959 return _YearFromTime(dt); 960 } 961 962 int JS_GetMonthFromTime(double dt) 963 { 964 return _MonthFromTime(dt); 965 } 966 967 int JS_GetDayFromTime(double dt) 968 { 969 return _DateFromTime(dt); 970 } 971 972 int JS_GetHourFromTime(double dt) 973 { 974 return (int)_Mod(FXSYS_floor((double)(dt/(60*60*1000))), 24); 975 } 976 977 int JS_GetMinFromTime(double dt) 978 { 979 return (int)_Mod(FXSYS_floor((double)(dt/(60*1000))), 60); 980 } 981 982 int JS_GetSecFromTime(double dt) 983 { 984 return (int)_Mod(FXSYS_floor((double)(dt/1000)), 60); 985 } 986 987 double JS_DateParse(const wchar_t* string) 988 { 989 v8::Isolate* pIsolate = v8::Isolate::GetCurrent(); 990 v8::Isolate::Scope isolate_scope(pIsolate); 991 v8::HandleScope scope(pIsolate); 992 993 v8::Local<v8::Context> context = pIsolate->GetCurrentContext(); 994 995 //Use the built-in object method. 996 v8::Local<v8::Value> v = context->Global()->Get(context, v8::String::NewFromUtf8(pIsolate, "Date", v8::NewStringType::kNormal).ToLocalChecked()).ToLocalChecked(); 997 if(v->IsObject()) 998 { 999 v8::Local<v8::Object> o = v->ToObject(context).ToLocalChecked(); 1000 v = o->Get(context,v8::String::NewFromUtf8(pIsolate, "parse", v8::NewStringType::kNormal).ToLocalChecked()).ToLocalChecked(); 1001 if(v->IsFunction()) 1002 { 1003 v8::Local<v8::Function> funC = v8::Local<v8::Function>::Cast(v); 1004 1005 const int argc = 1; 1006 v8::Local<v8::String> timeStr = WSToJSString(pIsolate, string); 1007 v8::Local<v8::Value> argv[argc] = {timeStr}; 1008 v = funC->Call(context, context->Global(), argc, argv).ToLocalChecked(); 1009 if(v->IsNumber()) 1010 { 1011 double date = v->ToNumber(context).ToLocalChecked()->Value(); 1012 if(!_isfinite(date)) return date; 1013 return date + _getLocalTZA() + _getDaylightSavingTA(date); 1014 } 1015 1016 } 1017 } 1018 return 0; 1019 } 1020 1021 double JS_MakeDay(int nYear, int nMonth, int nDate) 1022 { 1023 if (!_isfinite(nYear) || !_isfinite(nMonth) ||!_isfinite(nDate)) 1024 return GetNan(); 1025 double y = _toInteger(nYear); 1026 double m = _toInteger(nMonth); 1027 double dt = _toInteger(nDate); 1028 double ym = y + FXSYS_floor((double)m/12); 1029 double mn = _Mod(m ,12); 1030 1031 double t = _TimeFromYearMonth((int)ym,(int)mn); 1032 1033 if (_YearFromTime(t) != ym || _MonthFromTime(t) != mn ||_DateFromTime(t) != 1) 1034 return GetNan(); 1035 return _Day(t)+dt-1; 1036 } 1037 1038 double JS_MakeTime(int nHour, int nMin, int nSec, int nMs) 1039 { 1040 if (!_isfinite(nHour) ||!_isfinite(nMin) ||!_isfinite(nSec) ||!_isfinite(nMs)) 1041 return GetNan(); 1042 1043 double h = _toInteger(nHour); 1044 double m = _toInteger(nMin); 1045 double s = _toInteger(nSec); 1046 double milli = _toInteger(nMs); 1047 1048 return h * 3600000 + m * 60000 + s * 1000 + milli; 1049 } 1050 1051 double JS_MakeDate(double day, double time) 1052 { 1053 if (!_isfinite(day) ||!_isfinite(time)) 1054 return GetNan(); 1055 1056 return day * 86400000 + time; 1057 } 1058 1059 bool JS_PortIsNan(double d) 1060 { 1061 return d != d; 1062 } 1063 1064 double JS_LocalTime(double d) 1065 { 1066 return JS_GetDateTime() + _getDaylightSavingTA(d); 1067 } 1068 1069 //JavaScript time implement End. 1070
