Convert all line endings to LF.
[pdfium.git] / 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
30 CJS_RuntimeFactory::~CJS_RuntimeFactory()
31 {
32 }
33
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 }
44 void                                                    CJS_RuntimeFactory::AddRef()
45 {
46         //to do.Should be implemented as atom manipulation.
47         m_nRef++;
48 }
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
63 void                                                    CJS_RuntimeFactory::DeleteJSRuntime(IFXJS_Runtime* pRuntime)
64 {
65         if(pRuntime)
66                 delete (CJS_Runtime*)pRuntime;
67 }
68
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
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
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
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
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
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
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
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
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
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
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
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
317 v8::Handle<v8::Context> CJS_Runtime::NewJSContext()
318 {
319         return v8::Local<v8::Context>::New(m_isolate, m_context);
320 }
321
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
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
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
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
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
459 FX_BOOL  CJS_Runtime::IsEntered()
460 {
461         return v8::Isolate::GetCurrent() == m_isolate;
462 }
463 void    CJS_Runtime::Exit()
464 {
465         if(m_isolate) m_isolate->Exit();
466 }
467 void    CJS_Runtime::Enter()
468 {
469         if(m_isolate) m_isolate->Enter();
470 }