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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 #ifndef FXJS_XFA_FXJSE_H_
8 #define FXJS_XFA_FXJSE_H_
9 
10 #include "core/fxcrt/fx_string.h"
11 #include "core/fxcrt/fx_system.h"
12 #include "v8/include/v8.h"
13 
14 namespace pdfium {
15 namespace fxjse {
16 
17 extern const char kFuncTag[];
18 extern const char kClassTag[];
19 
20 }  // namespace fxjse
21 }  // namespace pdfium
22 
23 class CFXJSE_Arguments;
24 class CFXJSE_FormCalcContext;
25 class CFXJSE_Value;
26 class CJS_Result;
27 class CXFA_Object;
28 
29 // C++ object which is retrieved from v8 object's slot.
30 class CFXJSE_HostObject {
31  public:
32   virtual ~CFXJSE_HostObject();
33 
34   // Two subclasses.
35   virtual CFXJSE_FormCalcContext* AsFormCalcContext();
36   virtual CXFA_Object* AsCXFAObject();
37 
38  protected:
39   CFXJSE_HostObject();
40 };
41 
42 typedef CJS_Result (*FXJSE_MethodCallback)(
43     const v8::FunctionCallbackInfo<v8::Value>& info,
44     const WideString& functionName);
45 typedef void (*FXJSE_FuncCallback)(CFXJSE_Value* pThis,
46                                    ByteStringView szFuncName,
47                                    CFXJSE_Arguments& args);
48 typedef void (*FXJSE_PropAccessor)(CFXJSE_Value* pObject,
49                                    ByteStringView szPropName,
50                                    CFXJSE_Value* pValue);
51 typedef int32_t (*FXJSE_PropTypeGetter)(CFXJSE_Value* pObject,
52                                         ByteStringView szPropName,
53                                         bool bQueryIn);
54 
55 enum FXJSE_ClassPropTypes {
56   FXJSE_ClassPropType_None,
57   FXJSE_ClassPropType_Property,
58   FXJSE_ClassPropType_Method
59 };
60 
61 struct FXJSE_FUNCTION_DESCRIPTOR {
62   const char* tag;  // pdfium::kFuncTag always.
63   const char* name;
64   FXJSE_FuncCallback callbackProc;
65 };
66 
67 struct FXJSE_CLASS_DESCRIPTOR {
68   const char* tag;  // pdfium::kClassTag always.
69   const char* name;
70   const FXJSE_FUNCTION_DESCRIPTOR* methods;
71   int32_t methNum;
72   FXJSE_PropTypeGetter dynPropTypeGetter;
73   FXJSE_PropAccessor dynPropGetter;
74   FXJSE_PropAccessor dynPropSetter;
75   FXJSE_MethodCallback dynMethodCall;
76 };
77 
78 extern const FXJSE_CLASS_DESCRIPTOR GlobalClassDescriptor;
79 extern const FXJSE_CLASS_DESCRIPTOR NormalClassDescriptor;
80 extern const FXJSE_CLASS_DESCRIPTOR VariablesClassDescriptor;
81 extern const FXJSE_CLASS_DESCRIPTOR kFormCalcFM2JSDescriptor;
82 
83 void FXJSE_ThrowMessage(ByteStringView utf8Message);
84 
85 #endif  // FXJS_XFA_FXJSE_H_
86