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
~CJS_RuntimeFactory()30 CJS_RuntimeFactory::~CJS_RuntimeFactory()
31 {
32 }
33
NewJSRuntime(CPDFDoc_Environment * pApp)34 IFXJS_Runtime* CJS_RuntimeFactory::NewJSRuntime(CPDFDoc_Environment* pApp)
35 {
36 if (!m_bInit)
37 {
38 JS_Initial();
39
40 m_bInit = TRUE;
41 }
42 return new CJS_Runtime(pApp);
43 }
AddRef()44 void CJS_RuntimeFactory::AddRef()
45 {
46 //to do.Should be implemented as atom manipulation.
47 m_nRef++;
48 }
Release()49 void CJS_RuntimeFactory::Release()
50 {
51 if(m_bInit)
52 {
53 //to do.Should be implemented as atom manipulation.
54 if (--m_nRef == 0)
55 {
56 JS_Release();
57 ReleaseGlobalData();
58 m_bInit = FALSE;
59 }
60 }
61 }
62
DeleteJSRuntime(IFXJS_Runtime * pRuntime)63 void CJS_RuntimeFactory::DeleteJSRuntime(IFXJS_Runtime* pRuntime)
64 {
65 if(pRuntime)
66 delete (CJS_Runtime*)pRuntime;
67 }
68
NewGlobalData(CPDFDoc_Environment * pApp)69 CJS_GlobalData* CJS_RuntimeFactory::NewGlobalData(CPDFDoc_Environment* pApp)
70 {
71 if (m_pGlobalData)
72 {
73 m_nGlobalDataCount++;
74 return m_pGlobalData;
75 }
76 else
77 {
78 m_nGlobalDataCount = 1;
79 m_pGlobalData = new CJS_GlobalData(pApp);
80 return m_pGlobalData;
81 }
82 }
83
ReleaseGlobalData()84 void CJS_RuntimeFactory::ReleaseGlobalData()
85 {
86 m_nGlobalDataCount--;
87
88 if (m_nGlobalDataCount <= 0)
89 {
90 delete m_pGlobalData;
91 m_pGlobalData = NULL;
92 }
93 }
94
95 /* ------------------------------ CJS_Runtime ------------------------------ */
96
CJS_Runtime(CPDFDoc_Environment * pApp)97 CJS_Runtime::CJS_Runtime(CPDFDoc_Environment * pApp) :
98 m_pApp(pApp),
99 m_pDocument(NULL),
100 m_pFieldEventPath(NULL),
101 m_bBlocking(FALSE),
102 m_bRegistered(FALSE)
103 {
104 m_isolate = v8::Isolate::New();
105 //m_isolate->Enter();
106
107 InitJSObjects();
108
109 CJS_Context * pContext = (CJS_Context*)NewContext();
110 JS_InitialRuntime(*this, this, pContext, m_context);
111 ReleaseContext(pContext);
112 }
113
~CJS_Runtime()114 CJS_Runtime::~CJS_Runtime()
115 {
116 for (int i=0, sz=m_ContextArray.GetSize(); i<sz; i++)
117 delete m_ContextArray.GetAt(i);
118
119 m_ContextArray.RemoveAll();
120
121 JS_ReleaseRuntime(*this, m_context);
122
123 RemoveEventsInLoop(m_pFieldEventPath);
124
125 m_pApp = NULL;
126 m_pDocument = NULL;
127 m_pFieldEventPath = NULL;
128 m_context.Reset();
129
130 //m_isolate->Exit();
131 m_isolate->Dispose();
132 }
133
InitJSObjects()134 FX_BOOL CJS_Runtime::InitJSObjects()
135 {
136 v8::Isolate::Scope isolate_scope(GetIsolate());
137 v8::HandleScope handle_scope(GetIsolate());
138 v8::Handle<v8::Context> context = v8::Context::New(GetIsolate());
139 v8::Context::Scope context_scope(context);
140 //0 - 8
141 if (CJS_Border::Init(*this, JS_STATIC) < 0) return FALSE;
142 if (CJS_Display::Init(*this, JS_STATIC) < 0) return FALSE;
143 if (CJS_Font::Init(*this, JS_STATIC) < 0) return FALSE;
144 if (CJS_Highlight::Init(*this, JS_STATIC) < 0) return FALSE;
145 if (CJS_Position::Init(*this, JS_STATIC) < 0) return FALSE;
146 if (CJS_ScaleHow::Init(*this, JS_STATIC) < 0) return FALSE;
147 if (CJS_ScaleWhen::Init(*this, JS_STATIC) < 0) return FALSE;
148 if (CJS_Style::Init(*this, JS_STATIC) < 0) return FALSE;
149 if (CJS_Zoomtype::Init(*this, JS_STATIC) < 0) return FALSE;
150
151 //9 - 11
152 if (CJS_App::Init(*this, JS_STATIC) < 0) return FALSE;
153 if (CJS_Color::Init(*this, JS_STATIC) < 0) return FALSE;
154 if (CJS_Console::Init(*this, JS_STATIC) < 0) return FALSE;
155
156 //12 - 14
157 if (CJS_Document::Init(*this, JS_DYNAMIC) < 0) return FALSE;
158 if (CJS_Event::Init(*this, JS_STATIC) < 0) return FALSE;
159 if (CJS_Field::Init(*this, JS_DYNAMIC) < 0) return FALSE;
160
161 //15 - 17
162 if (CJS_Global::Init(*this, JS_STATIC) < 0) return FALSE;
163 if (CJS_Icon::Init(*this, JS_DYNAMIC) < 0) return FALSE;
164 if (CJS_Util::Init(*this, JS_STATIC) < 0) return FALSE;
165
166 if (CJS_PublicMethods::Init(*this) < 0) return FALSE;
167 if (CJS_GlobalConsts::Init(*this) < 0) return FALSE;
168 if (CJS_GlobalArrays::Init(*this) < 0) return FALSE;
169
170 if (CJS_TimerObj::Init(*this, JS_DYNAMIC) < 0) return FALSE;
171 if (CJS_PrintParamsObj::Init(*this, JS_DYNAMIC) <0) return FALSE;
172
173 return TRUE;
174 }
175
NewContext()176 IFXJS_Context* CJS_Runtime::NewContext()
177 {
178 CJS_Context * p = new CJS_Context(this);
179 m_ContextArray.Add(p);
180 return p;
181 }
182
ReleaseContext(IFXJS_Context * pContext)183 void CJS_Runtime::ReleaseContext(IFXJS_Context * pContext)
184 {
185 CJS_Context* pJSContext = (CJS_Context*)pContext;
186
187 for (int i=0, sz=m_ContextArray.GetSize(); i<sz; i++)
188 {
189 if (pJSContext == m_ContextArray.GetAt(i))
190 {
191 delete pJSContext;
192 m_ContextArray.RemoveAt(i);
193 break;
194 }
195 }
196 }
197
GetCurrentContext()198 IFXJS_Context* CJS_Runtime::GetCurrentContext()
199 {
200 if(!m_ContextArray.GetSize())
201 return NULL;
202 return m_ContextArray.GetAt(m_ContextArray.GetSize()-1);
203 }
204
SetReaderDocument(CPDFSDK_Document * pReaderDoc)205 void CJS_Runtime::SetReaderDocument(CPDFSDK_Document* pReaderDoc)
206 {
207 if (m_pDocument != pReaderDoc)
208 {
209 v8::Isolate::Scope isolate_scope(m_isolate);
210 v8::HandleScope handle_scope(m_isolate);
211 v8::Local<v8::Context> context =v8::Local<v8::Context>::New(m_isolate, m_context);
212 v8::Context::Scope context_scope(context);
213
214 m_pDocument = pReaderDoc;
215
216 if (pReaderDoc)
217 {
218 JSObject pThis = JS_GetThisObj(*this);
219 if(!pThis.IsEmpty())
220 {
221 if (JS_GetObjDefnID(pThis) == JS_GetObjDefnID(*this, L"Document"))
222 {
223 if (CJS_Document* pJSDocument = (CJS_Document*)JS_GetPrivate(pThis))
224 {
225 if (Document * pDocument = (Document*)pJSDocument->GetEmbedObject())
226 pDocument->AttachDoc(pReaderDoc);
227 }
228 }
229 }
230 JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"Document"));
231 }
232 else
233 {
234 JS_SetThisObj(*this, JS_GetObjDefnID(*this, L"app"));
235 }
236 }
237 }
238
AddEventToLoop(const CFX_WideString & sTargetName,JS_EVENT_T eEventType)239 FX_BOOL CJS_Runtime::AddEventToLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType)
240 {
241 if (m_pFieldEventPath == NULL)
242 {
243 m_pFieldEventPath = new CJS_FieldEvent;
244 m_pFieldEventPath->sTargetName = sTargetName;
245 m_pFieldEventPath->eEventType = eEventType;
246 m_pFieldEventPath->pNext = NULL;
247
248 return TRUE;
249 }
250
251 //to search
252 CJS_FieldEvent* p = m_pFieldEventPath;
253 CJS_FieldEvent* pLast = m_pFieldEventPath;
254 while (p)
255 {
256 if (p->eEventType == eEventType && p->sTargetName == sTargetName)
257 return FALSE;
258
259 pLast = p;
260 p = p->pNext;
261 }
262
263 //to add
264 CJS_FieldEvent* pNew = new CJS_FieldEvent;
265 pNew->sTargetName = sTargetName;
266 pNew->eEventType = eEventType;
267 pNew->pNext = NULL;
268
269 pLast->pNext = pNew;
270
271 return TRUE;
272 }
273
RemoveEventInLoop(const CFX_WideString & sTargetName,JS_EVENT_T eEventType)274 void CJS_Runtime::RemoveEventInLoop(const CFX_WideString& sTargetName, JS_EVENT_T eEventType)
275 {
276 FX_BOOL bFind = FALSE;
277
278 CJS_FieldEvent* p = m_pFieldEventPath;
279 CJS_FieldEvent* pLast = NULL;
280 while (p)
281 {
282 if (p->eEventType == eEventType && p->sTargetName == sTargetName)
283 {
284 bFind = TRUE;
285 break;
286 }
287
288 pLast = p;
289 p = p->pNext;
290 }
291
292 if (bFind)
293 {
294 RemoveEventsInLoop(p);
295
296 if (p == m_pFieldEventPath)
297 m_pFieldEventPath = NULL;
298
299 if (pLast)
300 pLast->pNext = NULL;
301 }
302 }
303
RemoveEventsInLoop(CJS_FieldEvent * pStart)304 void CJS_Runtime::RemoveEventsInLoop(CJS_FieldEvent* pStart)
305 {
306 CJS_FieldEvent* p = pStart;
307
308 while (p)
309 {
310 CJS_FieldEvent* pOld = p;
311 p = pOld->pNext;
312
313 delete pOld;
314 }
315 }
316
NewJSContext()317 v8::Handle<v8::Context> CJS_Runtime::NewJSContext()
318 {
319 return v8::Local<v8::Context>::New(m_isolate, m_context);
320 }
321
ChangeObjName(const CFX_WideString & str)322 CFX_WideString ChangeObjName(const CFX_WideString& str)
323 {
324 CFX_WideString sRet = str;
325 sRet.Replace((FX_LPCWSTR)L"_", (FX_LPCWSTR)L".");
326 return sRet;
327 }
328
GetObjectNames(CFX_WideStringArray & array)329 void CJS_Runtime::GetObjectNames(CFX_WideStringArray& array)
330 {
331 array.RemoveAll();
332
333 array.Add(CJS_Border::m_pClassName);
334 array.Add(CJS_Display::m_pClassName);
335 array.Add(CJS_Font::m_pClassName);
336 array.Add(CJS_Highlight::m_pClassName);
337 array.Add(CJS_Position::m_pClassName);
338 array.Add(CJS_ScaleHow::m_pClassName);
339 array.Add(CJS_ScaleWhen::m_pClassName);
340 array.Add(CJS_Style::m_pClassName);
341 array.Add(CJS_Zoomtype::m_pClassName);
342
343 array.Add(CJS_App::m_pClassName);
344 array.Add((FX_LPCWSTR)"this");
345 array.Add(CJS_Event::m_pClassName);
346
347 array.Add(CJS_Global::m_pClassName);
348 array.Add(CJS_Util::m_pClassName);
349 }
350
GetObjectConsts(const CFX_WideString & sObjName,CFX_WideStringArray & array)351 void CJS_Runtime::GetObjectConsts(const CFX_WideString& sObjName, CFX_WideStringArray& array)
352 {
353 JSConstSpec* pConsts = NULL;
354 int nSize = 0;
355
356 if (sObjName == CJS_Border::m_pClassName)
357 CJS_Border::GetConsts(pConsts, nSize);
358 else if (sObjName == CJS_Display::m_pClassName)
359 CJS_Display::GetConsts(pConsts, nSize);
360 else if (sObjName == CJS_Font::m_pClassName)
361 CJS_Font::GetConsts(pConsts, nSize);
362 else if (sObjName == CJS_Highlight::m_pClassName)
363 CJS_Highlight::GetConsts(pConsts, nSize);
364 else if (sObjName == CJS_Position::m_pClassName)
365 CJS_Position::GetConsts(pConsts, nSize);
366 else if (sObjName == CJS_ScaleHow::m_pClassName)
367 CJS_ScaleHow::GetConsts(pConsts, nSize);
368 else if (sObjName == CJS_ScaleWhen::m_pClassName)
369 CJS_ScaleWhen::GetConsts(pConsts, nSize);
370 else if (sObjName == CJS_Style::m_pClassName)
371 CJS_Style::GetConsts(pConsts, nSize);
372 else if (sObjName == CJS_Zoomtype::m_pClassName)
373 CJS_Zoomtype::GetConsts(pConsts, nSize);
374
375 else if (sObjName == CJS_App::m_pClassName)
376 CJS_App::GetConsts(pConsts, nSize);
377 else if (sObjName == CJS_Color::m_pClassName)
378 CJS_Color::GetConsts(pConsts, nSize);
379
380 else if (sObjName == L"this")
381 {
382 if (GetReaderDocument())
383 CJS_Document::GetConsts(pConsts, nSize);
384 else
385 CJS_App::GetConsts(pConsts, nSize);
386 }
387
388 if (sObjName == CJS_Event::m_pClassName)
389 CJS_Event::GetConsts(pConsts, nSize);
390 else if (sObjName == CJS_Field::m_pClassName)
391 CJS_Field::GetConsts(pConsts, nSize);
392 else if (sObjName == CJS_Global::m_pClassName)
393 CJS_Global::GetConsts(pConsts, nSize);
394 else if (sObjName == CJS_Util::m_pClassName)
395 CJS_Util::GetConsts(pConsts, nSize);
396
397 for (int i=0; i<nSize; i++)
398 array.Add(pConsts[i].pName);
399 }
400
GetObjectProps(const CFX_WideString & sObjName,CFX_WideStringArray & array)401 void CJS_Runtime::GetObjectProps(const CFX_WideString& sObjName, CFX_WideStringArray& array)
402 {
403 JSPropertySpec* pProperties = NULL;
404 int nSize = 0;
405
406 if (sObjName == CJS_App::m_pClassName)
407 CJS_App::GetProperties(pProperties, nSize);
408 else if (sObjName == CJS_Color::m_pClassName)
409 CJS_Color::GetProperties(pProperties, nSize);
410 else if (sObjName == L"this")
411 {
412 if (GetReaderDocument())
413 CJS_Document::GetProperties(pProperties, nSize);
414 else
415 CJS_App::GetProperties(pProperties, nSize);
416 }
417 else if (sObjName == CJS_Event::m_pClassName)
418 CJS_Event::GetProperties(pProperties, nSize);
419 else if (sObjName == CJS_Field::m_pClassName)
420 CJS_Field::GetProperties(pProperties, nSize);
421 else if (sObjName == CJS_Global::m_pClassName)
422 CJS_Global::GetProperties(pProperties, nSize);
423 else if (sObjName == CJS_Util::m_pClassName)
424 CJS_Util::GetProperties(pProperties, nSize);
425
426 for (int i=0; i<nSize; i++)
427 array.Add(pProperties[i].pName);
428 }
429
GetObjectMethods(const CFX_WideString & sObjName,CFX_WideStringArray & array)430 void CJS_Runtime::GetObjectMethods(const CFX_WideString& sObjName, CFX_WideStringArray& array)
431 {
432 JSMethodSpec* pMethods = NULL;
433 int nSize = 0;
434
435 if (sObjName == CJS_App::m_pClassName)
436 CJS_App::GetMethods(pMethods, nSize);
437 else if (sObjName == CJS_Color::m_pClassName)
438 CJS_Color::GetMethods(pMethods, nSize);
439 else if (sObjName == L"this")
440 {
441 if (GetReaderDocument())
442 CJS_Document::GetMethods(pMethods, nSize);
443 else
444 CJS_App::GetMethods(pMethods, nSize);
445 }
446 else if (sObjName == CJS_Event::m_pClassName)
447 CJS_Event::GetMethods(pMethods, nSize);
448 else if (sObjName == CJS_Field::m_pClassName)
449 CJS_Field::GetMethods(pMethods, nSize);
450 else if (sObjName == CJS_Global::m_pClassName)
451 CJS_Global::GetMethods(pMethods, nSize);
452 else if (sObjName == CJS_Util::m_pClassName)
453 CJS_Util::GetMethods(pMethods, nSize);
454
455 for (int i=0; i<nSize; i++)
456 array.Add(pMethods[i].pName);
457 }
458
IsEntered()459 FX_BOOL CJS_Runtime::IsEntered()
460 {
461 return v8::Isolate::GetCurrent() == m_isolate;
462 }
Exit()463 void CJS_Runtime::Exit()
464 {
465 if(m_isolate) m_isolate->Exit();
466 }
Enter()467 void CJS_Runtime::Enter()
468 {
469 if(m_isolate) m_isolate->Enter();
470 }
471