fpdfsdk/src/javascript/JS_Runtime.cpp

   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 "../../include/javascript/JavaScript.h"
   8 #include "../../include/javascript/IJavaScript.h"
   9 #include "../../include/javascript/JS_EventHandler.h"
  10 #include "../../include/javascript/JS_Runtime.h"
  11 #include "../../include/javascript/JS_Context.h"
  12 #include "../../include/javascript/JS_Define.h"
  13 #include "../../include/javascript/JS_Object.h"
  14 #include "../../include/javascript/JS_Value.h"
  15 #include "../../include/javascript/Document.h"
  16 #include "../../include/javascript/app.h"
  17 #include "../../include/javascript/color.h"
  18 #include "../../include/javascript/Consts.h"
  19 #include "../../include/javascript/Document.h"
  20 #include "../../include/javascript/event.h"
  21 #include "../../include/javascript/Field.h"
  22 #include "../../include/javascript/Icon.h"
  23 #include "../../include/javascript/PublicMethods.h"
  24 #include "../../include/javascript/report.h"
  25 #include "../../include/javascript/util.h"
  26 #include "../../include/javascript/JS_GlobalData.h"
  27 #include "../../include/javascript/global.h"
  28 #include "../../include/javascript/console.h"
  29 #include "../../include/fpdfxfa/fpdfxfa_app.h"
  30 #ifndef FOXIT_CHROME_BUILD
  31 #include "../../../fxjse/value.h"
  32 #else
  33 #include "../../../xfa/src/fxjse/src/value.h"
  34 #endif
  35
  36 #include <libplatform/libplatform.h>
  37
  38 CJS_RuntimeFactory::~CJS_RuntimeFactory()
  39 {
  40 }
  41
  42 IFXJS_Runtime*                                  CJS_RuntimeFactory::NewJSRuntime(CPDFDoc_Environment* pApp)
  43 {
  44         if (!m_bInit)
  45         {
  46                 JS_Initial();
  47                 m_platform = v8::platform::CreateDefaultPlatform();
  48                 v8::V8::InitializePlatform(m_platform);
  49                 v8::V8::Initialize();
  50
  51                 m_bInit = TRUE;
  52         }
  53         return new CJS_Runtime(pApp);
  54 }
  55 void                                                    CJS_RuntimeFactory::AddRef()
  56 {
  57         //to do.Should be implemented as atom manipulation.
  58         m_nRef++;
  59 }
  60 void                                                    CJS_RuntimeFactory::Release()
  61 {
  62         if(m_bInit)
  63         {
  64                 //to do.Should be implemented as atom manipulation.
  65                 if (--m_nRef == 0)
  66                 {
  67                         JS_Release();
  68                         ReleaseGlobalData();
  69                         v8::V8::ShutdownPlatform();
  70                         delete m_platform;
  71                         m_platform = NULL;
  72                         m_bInit = FALSE;
  73                 }
  74         }
  75 }
  76
  77 void                                                    CJS_RuntimeFactory::DeleteJSRuntime(IFXJS_Runtime* pRuntime)
  78 {
  79         if(pRuntime)
  80                 delete (CJS_Runtime*)pRuntime;
  81 }
  82
  83 CJS_GlobalData* CJS_RuntimeFactory::NewGlobalData(CPDFDoc_Environment* pApp)
  84 {
  85         if (m_pGlobalData)
  86         {
  87                 m_nGlobalDataCount++;
  88                 return m_pGlobalData;
  89         }
  90         else
  91         {
  92                 m_nGlobalDataCount = 1;
  93                 m_pGlobalData = new CJS_GlobalData(pApp);
  94                 return m_pGlobalData;
  95         }
  96 }
  97
  98 void CJS_RuntimeFactory::ReleaseGlobalData()
  99 {
 100         m_nGlobalDataCount--;
 101
 102         if (m_nGlobalDataCount <= 0)
 103         {
 104                 delete m_pGlobalData;
 105                 m_pGlobalData = NULL;
 106         }
 107 }
 108
 109 /* ------------------------------ CJS_Runtime ------------------------------ */
 110 extern v8::Persistent<v8::ObjectTemplate>& _getGlobalObjectTemplate(IJS_Runtime* pJSRuntime);
 111 CJS_Runtime::CJS_Runtime(CPDFDoc_Environment* pApp) :
 112         m_pApp(pApp),
 113         m_pDocument(NULL),
 114         m_bBlocking(FALSE),
 115         m_pFieldEventPath(NULL),
 116         m_bRegistered(FALSE)
 117 {
 118         m_isolate = FPDFXFA_GetApp()->GetJSERuntime()?(v8::Isolate*)FPDFXFA_GetApp()->GetJSERuntime():v8::Isolate::New();
 119         //m_isolate->Enter();
 120         v8::Isolate* isolate = m_isolate;
 121         v8::Isolate::Scope isolate_scope(isolate);
 122         v8::Locker locker(isolate);
 123         v8::HandleScope handle_scope(isolate);
 124         if (FPDFXFA_GetApp()->InitRuntime(FALSE)) {
 125                 CJS_Context * pContext = (CJS_Context*)NewContext();
 126                 JS_InitialRuntime(*this, this, pContext, m_context);
 127                 ReleaseContext(pContext);
 128                 return;
 129         }
 130
 131         InitJSObjects();
 132
 133         CJS_Context * pContext = (CJS_Context*)NewContext();
 134         JS_InitialRuntime(*this, this, pContext, m_context);
 135         ReleaseContext(pContext);
 136 }
 137
 138 CJS_Runtime::~CJS_Runtime()
 139 {
 140         int size = m_ContextArray.GetSize();
 141         for (int i=0;i < size; i++)
 142                 delete m_ContextArray.GetAt(i);
 143
 144         m_ContextArray.RemoveAll();
 145
 146         //JS_ReleaseRuntime(*this, m_context);
 147
 148         RemoveEventsInLoop(m_pFieldEventPath);
 149
 150         m_pApp = NULL;
 151         m_pDocument = NULL;
 152         m_pFieldEventPath = NULL;
 153         m_context.Reset();
 154
 155         //m_isolate->Exit();
 156         //m_isolate->Dispose();
 157         m_isolate = NULL;
 158 }
 159
 160 FX_BOOL CJS_Runtime::InitJSObjects()
 161 {
 162         v8::Isolate::Scope isolate_scope(GetIsolate());
 163         v8::Locker locker(GetIsolate());
 164         v8::HandleScope handle_scope(GetIsolate());
 165         v8::Handle<v8::Context> context = v8::Context::New(GetIsolate());
 166         v8::Context::Scope context_scope(context);
 167         //0 - 8
 168         if (CJS_Border::Init(*this, JS_STATIC) < 0) return FALSE;
 169         if (CJS_Display::Init(*this, JS_STATIC) < 0) return FALSE;
 170         if (CJS_Font::Init(*this, JS_STATIC) < 0) return FALSE;
 171         if (CJS_Highlight::Init(*this, JS_STATIC) < 0) return FALSE;
 172         if (CJS_Position::Init(*this, JS_STATIC) < 0) return FALSE;
 173         if (CJS_ScaleHow::Init(*this, JS_STATIC) < 0) return FALSE;
 174         if (CJS_ScaleWhen::Init(*this, JS_STATIC) < 0) return FALSE;
 175         if (CJS_Style::Init(*this, JS_STATIC) < 0) return FALSE;
 176         if (CJS_Zoomtype::Init(*this, JS_STATIC) < 0) return FALSE;
 177
 178         //9 - 11
 179         if (CJS_App::Init(*this, JS_STATIC) < 0) return FALSE;
 180         if (CJS_Color::Init(*this, JS_STATIC) < 0) return FALSE;
 181         if (CJS_Console::Init(*this, JS_STATIC) < 0) return FALSE;
 182
 183         //12 - 14
 184         if (CJS_Document::Init(*this, JS_DYNAMIC) < 0) return FALSE;
 185         if (CJS_Event::Init(*this, JS_STATIC) < 0) return FALSE;
 186         if (CJS_Field::Init(*this, JS_DYNAMIC) < 0) return FALSE;
 187
 188         //15 - 17
 189         if (CJS_Global::Init(*this, JS_STATIC) < 0) return FALSE;
 190         if (CJS_Icon::Init(*this, JS_DYNAMIC) < 0) return FALSE;
 191         if (CJS_Util::Init(*this, JS_STATIC) < 0) return FALSE;
 192
 193         if (CJS_PublicMethods::Init(*this) < 0) return FALSE;
 194         if (CJS_GlobalConsts::Init(*this) < 0) return FALSE;
 195         if (CJS_GlobalArrays::Init(*this) < 0) return FALSE;
 196
 197         if (CJS_TimerObj::Init(*this, JS_DYNAMIC) < 0) return FALSE;
 198         if (CJS_PrintParamsObj::Init(*this, JS_DYNAMIC) <0) return FALSE;
 199
 200         return TRUE;
 201 }
 202
 203 IFXJS_Context* CJS_Runtime::NewContext()
 204 {
 205         CJS_Context * p = new CJS_Context(this);
 206         m_ContextArray.Add(p);
 207         return p;
 208 }
 209
 210 void CJS_Runtime::ReleaseContext(IFXJS_Context * pContext)
 211 {
 212         CJS_Context* pJSContext = (CJS_Context*)pContext;
 213
 214         for (int i=0, sz=m_ContextArray.GetSize(); i<sz; i++)
 215         {
 216                 if (pJSContext == m_ContextArray.GetAt(i))
 217                 {
 218                         delete pJSContext;
 219                         m_ContextArray.RemoveAt(i);
 220                         break;
 221                 }
 222         }
 223 }
 224
 225 IFXJS_Context*  CJS_Runtime::GetCurrentContext()
 226 {
 227         if(!m_ContextArray.GetSize())
 228                 return NULL;
 229         return m_ContextArray.GetAt(m_ContextArray.GetSize()-1);
 230 }
 231
 232 void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc)
 233 {
 234         if (m_pDocument != pReaderDoc)
 235         {
 236                 v8::Isolate::Scope isolate_scope(m_isolate);
 237                 v8::Locker locker(m_isolate);
 238                 v8::HandleScope handle_scope(m_isolate);
 239                 v8::Local<v8::Context> context =v8::Local<v8::Context>::New(m_isolate, m_context);
 240                 v8::Context::Scope context_scope(context);
 241
 242                 m_pDocument = pReaderDoc;
 243
 244                 if (pReaderDoc)
 245                 {
 246                         JSObject pThis = JS_GetThisObj(*this);
 247                         if(!pThis.IsEmpty())
 248                         {
 249                                 if (JS_GetObjDefnID(pThis) == JS_GetObjDefnID(*this, L"Document"))
 250                                 {
 251                                         if (CJS_Document* pJSDocument = (CJS_Document*)JS_GetPrivate(pThis))
 252                                         {
 253                                                 if (Document * pDocument = (Document*)pJSDocument->GetEmbedObject())
 254                                                         pDocument->AttachDoc(pReaderDoc);
 255                                         }
 256                                 }
 257                         }
 258                         JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"Document"));
 259                 }
 260                 else
 261                 {
 262                         JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"app"));
 263                 }
 264         }
 265 }
 266
 267 FX_BOOL CJS_Runtime::AddEventToLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType)
 268 {
 269         if (m_pFieldEventPath == NULL)
 270         {
 271                 m_pFieldEventPath = new CJS_FieldEvent;
 272                 m_pFieldEventPath->sTargetName = sTargetName;
 273                 m_pFieldEventPath->eEventType = eEventType;
 274                 m_pFieldEventPath->pNext = NULL;
 275
 276                 return TRUE;
 277         }
 278
 279         //to search
 280         CJS_FieldEvent* p = m_pFieldEventPath;
 281         CJS_FieldEvent* pLast = m_pFieldEventPath;
 282         while (p)
 283         {
 284                 if (p->eEventType == eEventType && p->sTargetName == sTargetName)
 285                         return FALSE;
 286
 287                 pLast = p;
 288                 p = p->pNext;
 289         }
 290
 291         //to add
 292         CJS_FieldEvent* pNew = new CJS_FieldEvent;
 293         pNew->sTargetName = sTargetName;
 294         pNew->eEventType = eEventType;
 295         pNew->pNext = NULL;
 296
 297         pLast->pNext = pNew;
 298
 299         return TRUE;
 300 }
 301
 302 void CJS_Runtime::RemoveEventInLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType)
 303 {
 304         FX_BOOL bFind = FALSE;
 305
 306         CJS_FieldEvent* p = m_pFieldEventPath;
 307         CJS_FieldEvent* pLast = NULL;
 308         while (p)
 309         {
 310                 if (p->eEventType == eEventType && p->sTargetName == sTargetName)
 311                 {
 312                         bFind = TRUE;
 313                         break;
 314                 }
 315
 316                 pLast = p;
 317                 p = p->pNext;
 318         }
 319
 320         if (bFind)
 321         {
 322                 RemoveEventsInLoop(p);
 323
 324                 if (p == m_pFieldEventPath)
 325                         m_pFieldEventPath = NULL;
 326
 327                 if (pLast)
 328                         pLast->pNext = NULL;
 329         }
 330 }
 331
 332 void CJS_Runtime::RemoveEventsInLoop(CJS_FieldEvent* pStart)
 333 {
 334         CJS_FieldEvent* p = pStart;
 335
 336         while (p)
 337         {
 338                 CJS_FieldEvent* pOld = p;
 339                 p = pOld->pNext;
 340
 341                 delete pOld;
 342         }
 343 }
 344
 345 v8::Handle<v8::Context> CJS_Runtime::NewJSContext()
 346 {
 347         return v8::Local<v8::Context>::New(m_isolate, m_context);
 348 }
 349
 350 CFX_WideString ChangeObjName(const CFX_WideString& str)
 351 {
 352         CFX_WideString sRet = str;
 353         sRet.Replace((FX_LPCWSTR)L"_", (FX_LPCWSTR)L".");
 354         return sRet;
 355 }
 356
 357 void CJS_Runtime::GetObjectNames(CFX_WideStringArray& array)
 358 {
 359         array.RemoveAll();
 360
 361         array.Add(CJS_Border::m_pClassName);
 362         array.Add(CJS_Display::m_pClassName);
 363         array.Add(CJS_Font::m_pClassName);
 364         array.Add(CJS_Highlight::m_pClassName);
 365         array.Add(CJS_Position::m_pClassName);
 366         array.Add(CJS_ScaleHow::m_pClassName);
 367         array.Add(CJS_ScaleWhen::m_pClassName);
 368         array.Add(CJS_Style::m_pClassName);
 369         array.Add(CJS_Zoomtype::m_pClassName);
 370
 371         array.Add(CJS_App::m_pClassName);
 372         array.Add((FX_LPCWSTR)"this");
 373         array.Add(CJS_Event::m_pClassName);
 374
 375         array.Add(CJS_Global::m_pClassName);
 376         array.Add(CJS_Util::m_pClassName);
 377 }
 378
 379 void CJS_Runtime::GetObjectConsts(const CFX_WideString& sObjName, CFX_WideStringArray& array)
 380 {
 381         JSConstSpec* pConsts = NULL;
 382         int nSize = 0;
 383
 384         if (sObjName == CJS_Border::m_pClassName)
 385                 CJS_Border::GetConsts(pConsts, nSize);
 386         else if (sObjName == CJS_Display::m_pClassName)
 387                 CJS_Display::GetConsts(pConsts, nSize);
 388         else if (sObjName == CJS_Font::m_pClassName)
 389                 CJS_Font::GetConsts(pConsts, nSize);
 390         else if (sObjName == CJS_Highlight::m_pClassName)
 391                 CJS_Highlight::GetConsts(pConsts, nSize);
 392         else if (sObjName == CJS_Position::m_pClassName)
 393                 CJS_Position::GetConsts(pConsts, nSize);
 394         else if (sObjName == CJS_ScaleHow::m_pClassName)
 395                 CJS_ScaleHow::GetConsts(pConsts, nSize);
 396         else if (sObjName == CJS_ScaleWhen::m_pClassName)
 397                 CJS_ScaleWhen::GetConsts(pConsts, nSize);
 398         else if (sObjName == CJS_Style::m_pClassName)
 399                 CJS_Style::GetConsts(pConsts, nSize);
 400         else if (sObjName == CJS_Zoomtype::m_pClassName)
 401                 CJS_Zoomtype::GetConsts(pConsts, nSize);
 402
 403         else if (sObjName == CJS_App::m_pClassName)
 404                 CJS_App::GetConsts(pConsts, nSize);
 405         else if (sObjName == CJS_Color::m_pClassName)
 406                 CJS_Color::GetConsts(pConsts, nSize);
 407
 408         else if (sObjName == L"this")
 409         {
 410                 if (GetReaderDocument())
 411                         CJS_Document::GetConsts(pConsts, nSize);
 412                 else
 413                         CJS_App::GetConsts(pConsts, nSize);
 414         }
 415
 416         if (sObjName == CJS_Event::m_pClassName)
 417                 CJS_Event::GetConsts(pConsts, nSize);
 418         else if (sObjName == CJS_Field::m_pClassName)
 419                 CJS_Field::GetConsts(pConsts, nSize);
 420         else if (sObjName == CJS_Global::m_pClassName)
 421                 CJS_Global::GetConsts(pConsts, nSize);
 422         else if (sObjName == CJS_Util::m_pClassName)
 423                 CJS_Util::GetConsts(pConsts, nSize);
 424
 425         for (int i=0; i<nSize; i++)
 426                 array.Add(pConsts[i].pName);
 427 }
 428
 429 void CJS_Runtime::GetObjectProps(const CFX_WideString& sObjName, CFX_WideStringArray& array)
 430 {
 431         JSPropertySpec* pProperties = NULL;
 432         int nSize = 0;
 433
 434         if (sObjName == CJS_App::m_pClassName)
 435                 CJS_App::GetProperties(pProperties, nSize);
 436         else if (sObjName == CJS_Color::m_pClassName)
 437                 CJS_Color::GetProperties(pProperties, nSize);
 438         else if (sObjName == L"this")
 439         {
 440                 if (GetReaderDocument())
 441                         CJS_Document::GetProperties(pProperties, nSize);
 442                 else
 443                         CJS_App::GetProperties(pProperties, nSize);
 444         }
 445         else if (sObjName == CJS_Event::m_pClassName)
 446                 CJS_Event::GetProperties(pProperties, nSize);
 447         else if (sObjName == CJS_Field::m_pClassName)
 448                 CJS_Field::GetProperties(pProperties, nSize);
 449         else if (sObjName == CJS_Global::m_pClassName)
 450                 CJS_Global::GetProperties(pProperties, nSize);
 451         else if (sObjName == CJS_Util::m_pClassName)
 452                 CJS_Util::GetProperties(pProperties, nSize);
 453
 454         for (int i=0; i<nSize; i++)
 455                 array.Add(pProperties[i].pName);
 456 }
 457
 458 void CJS_Runtime::GetObjectMethods(const CFX_WideString& sObjName, CFX_WideStringArray& array)
 459 {
 460         JSMethodSpec* pMethods = NULL;
 461         int nSize = 0;
 462
 463          if (sObjName == CJS_App::m_pClassName)
 464                 CJS_App::GetMethods(pMethods, nSize);
 465         else if (sObjName == CJS_Color::m_pClassName)
 466                 CJS_Color::GetMethods(pMethods, nSize);
 467         else if (sObjName == L"this")
 468         {
 469                 if (GetReaderDocument())
 470                         CJS_Document::GetMethods(pMethods, nSize);
 471                 else
 472                         CJS_App::GetMethods(pMethods, nSize);
 473         }
 474         else if (sObjName == CJS_Event::m_pClassName)
 475                 CJS_Event::GetMethods(pMethods, nSize);
 476         else if (sObjName == CJS_Field::m_pClassName)
 477                 CJS_Field::GetMethods(pMethods, nSize);
 478         else if (sObjName == CJS_Global::m_pClassName)
 479                 CJS_Global::GetMethods(pMethods, nSize);
 480         else if (sObjName == CJS_Util::m_pClassName)
 481                 CJS_Util::GetMethods(pMethods, nSize);
 482
 483         for (int i=0; i<nSize; i++)
 484                 array.Add(pMethods[i].pName);
 485 }
 486
 487 FX_BOOL  CJS_Runtime::IsEntered()
 488 {
 489         return v8::Isolate::GetCurrent() == m_isolate;
 490 }
 491 void    CJS_Runtime::Exit()
 492 {
 493         if(m_isolate) m_isolate->Exit();
 494 }
 495 void    CJS_Runtime::Enter()
 496 {
 497         if(m_isolate) m_isolate->Enter();
 498 }
 499 FX_BOOL CJS_Runtime::GetHValueByName(FX_BSTR utf8Name, FXJSE_HVALUE hValue)
 500 {
 501         FX_LPCSTR name = utf8Name.GetCStr();
 502
 503         v8::Locker lock(GetIsolate());
 504     v8::Isolate::Scope isolate_scope(GetIsolate());
 505     v8::HandleScope handle_scope(GetIsolate());
 506     v8::Local<v8::Context> context =
 507         v8::Local<v8::Context>::New(GetIsolate(), m_context);
 508     v8::Context::Scope context_scope(context);
 509
 510
 511         //v8::Local<v8::Context> tmpCotext = v8::Local<v8::Context>::New(GetIsolate(), m_context);
 512         v8::Local<v8::Value> propvalue = context->Global()->Get(v8::String::NewFromUtf8(GetIsolate(), name, v8::String::kNormalString, utf8Name.GetLength()));
 513
 514         if (propvalue.IsEmpty()) {
 515                 FXJSE_Value_SetUndefined(hValue);
 516                 return FALSE;
 517         }
 518         ((CFXJSE_Value*)hValue)->ForceSetValue(propvalue);
 519
 520         return TRUE;
 521 }
 522 FX_BOOL CJS_Runtime::SetHValueByName(FX_BSTR utf8Name, FXJSE_HVALUE hValue)
 523 {
 524         if (utf8Name.IsEmpty() || hValue == NULL)
 525                 return FALSE;
 526         FX_LPCSTR name = utf8Name.GetCStr();
 527         v8::Isolate* pIsolate = GetIsolate();
 528         v8::Locker lock(pIsolate);
 529     v8::Isolate::Scope isolate_scope(pIsolate);
 530     v8::HandleScope handle_scope(pIsolate);
 531     v8::Local<v8::Context> context =
 532         v8::Local<v8::Context>::New(pIsolate, m_context);
 533     v8::Context::Scope context_scope(context);
 534
 535         //v8::Local<v8::Context> tmpCotext = v8::Local<v8::Context>::New(GetIsolate(), m_context);
 536         v8::Local<v8::Value> propvalue = v8::Local<v8::Value>::New(GetIsolate(),((CFXJSE_Value*)hValue)->DirectGetValue());
 537         context->Global()->Set(v8::String::NewFromUtf8(pIsolate, name, v8::String::kNormalString, utf8Name.GetLength()), propvalue);
 538
 539         return TRUE;
 540 }