1// Copyright 2017 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#ifndef FXJS_CJS_V8_H_
8#define FXJS_CJS_V8_H_
9
10#include <v8-util.h>
11#include <v8.h>
12
13#include <map>
14#include <vector>
15
16#include "core/fxcrt/bytestring.h"
17#include "core/fxcrt/fx_string.h"
18#include "core/fxcrt/widestring.h"
19
20#ifdef PDF_ENABLE_XFA
21class CXFA_Object;
22#endif  // PDF_ENABLE_XFA
23
24class CJS_V8 {
25 public:
26  explicit CJS_V8(v8::Isolate* pIsolate);
27  virtual ~CJS_V8();
28
29  v8::Isolate* GetIsolate() const { return m_isolate; }
30
31  v8::Local<v8::Context> NewLocalContext();
32  v8::Local<v8::Context> GetPersistentContext();
33
34  v8::Local<v8::Value> NewNull();
35  v8::Local<v8::Value> NewUndefined();
36  v8::Local<v8::Array> NewArray();
37  v8::Local<v8::Number> NewNumber(int number);
38  v8::Local<v8::Number> NewNumber(double number);
39  v8::Local<v8::Number> NewNumber(float number);
40  v8::Local<v8::Boolean> NewBoolean(bool b);
41  v8::Local<v8::String> NewString(const ByteStringView& str);
42  v8::Local<v8::String> NewString(const WideStringView& str);
43  v8::Local<v8::Date> NewDate(double d);
44
45  int ToInt32(v8::Local<v8::Value> pValue);
46  bool ToBoolean(v8::Local<v8::Value> pValue);
47  double ToDouble(v8::Local<v8::Value> pValue);
48  WideString ToWideString(v8::Local<v8::Value> pValue);
49  ByteString ToByteString(v8::Local<v8::Value> pValue);
50  v8::Local<v8::Object> ToObject(v8::Local<v8::Value> pValue);
51  v8::Local<v8::Array> ToArray(v8::Local<v8::Value> pValue);
52
53#ifdef PDF_ENABLE_XFA
54  CXFA_Object* ToXFAObject(v8::Local<v8::Value> obj);
55  v8::Local<v8::Value> NewXFAObject(CXFA_Object* obj,
56                                    v8::Global<v8::FunctionTemplate>& tmpl);
57#endif  // PDF_ENABLE_XFA
58
59  // Arrays.
60  unsigned GetArrayLength(v8::Local<v8::Array> pArray);
61  v8::Local<v8::Value> GetArrayElement(v8::Local<v8::Array> pArray,
62                                       unsigned index);
63  unsigned PutArrayElement(v8::Local<v8::Array> pArray,
64                           unsigned index,
65                           v8::Local<v8::Value> pValue);
66
67  void SetConstArray(const WideString& name, v8::Local<v8::Array> array);
68  v8::Local<v8::Array> GetConstArray(const WideString& name);
69
70  // Objects.
71  std::vector<WideString> GetObjectPropertyNames(v8::Local<v8::Object> pObj);
72  v8::Local<v8::Value> GetObjectProperty(v8::Local<v8::Object> pObj,
73                                         const WideString& PropertyName);
74  void PutObjectProperty(v8::Local<v8::Object> pObj,
75                         const WideString& PropertyName,
76                         v8::Local<v8::Value> pValue);
77
78 protected:
79  void SetIsolate(v8::Isolate* pIsolate) { m_isolate = pIsolate; }
80  void ClearConstArray() { m_ConstArrays.clear(); }
81
82  void ResetPersistentContext(v8::Local<v8::Context> context) {
83    m_V8PersistentContext.Reset(m_isolate, context);
84  }
85  void ReleasePersistentContext() { m_V8PersistentContext.Reset(); }
86
87 private:
88  v8::Isolate* m_isolate;
89  std::map<WideString, v8::Global<v8::Array>> m_ConstArrays;
90  v8::Global<v8::Context> m_V8PersistentContext;
91};
92
93#endif  // FXJS_CJS_V8_H_
94