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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_FXJSE_H_
      8 #define FXJS_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 class CFXJSE_Arguments;
     15 class CFXJSE_Value;
     16 class CJS_Return;
     17 
     18 // C++ object which is retrieved from v8 object's slot.
     19 class CFXJSE_HostObject {
     20  public:
     21   virtual ~CFXJSE_HostObject() {}
     22 
     23   // Small layering violation here, but we need to distinguish between the
     24   // two kinds of subclasses.
     25   enum Type { kXFA, kFM2JS };
     26   Type type() const { return type_; }
     27 
     28  protected:
     29   explicit CFXJSE_HostObject(Type type) { type_ = type; }
     30 
     31   Type type_;
     32 };
     33 
     34 typedef CJS_Return (*FXJSE_MethodCallback)(
     35     const v8::FunctionCallbackInfo<v8::Value>& info,
     36     const WideString& functionName);
     37 typedef void (*FXJSE_FuncCallback)(CFXJSE_Value* pThis,
     38                                    const ByteStringView& szFuncName,
     39                                    CFXJSE_Arguments& args);
     40 typedef void (*FXJSE_PropAccessor)(CFXJSE_Value* pObject,
     41                                    const ByteStringView& szPropName,
     42                                    CFXJSE_Value* pValue);
     43 typedef int32_t (*FXJSE_PropTypeGetter)(CFXJSE_Value* pObject,
     44                                         const ByteStringView& szPropName,
     45                                         bool bQueryIn);
     46 
     47 enum FXJSE_ClassPropTypes {
     48   FXJSE_ClassPropType_None,
     49   FXJSE_ClassPropType_Property,
     50   FXJSE_ClassPropType_Method
     51 };
     52 
     53 struct FXJSE_FUNCTION_DESCRIPTOR {
     54   const char* name;
     55   FXJSE_FuncCallback callbackProc;
     56 };
     57 
     58 struct FXJSE_CLASS_DESCRIPTOR {
     59   const char* name;
     60   const FXJSE_FUNCTION_DESCRIPTOR* methods;
     61   int32_t methNum;
     62   FXJSE_PropTypeGetter dynPropTypeGetter;
     63   FXJSE_PropAccessor dynPropGetter;
     64   FXJSE_PropAccessor dynPropSetter;
     65   FXJSE_MethodCallback dynMethodCall;
     66 };
     67 
     68 void FXJSE_ThrowMessage(const ByteStringView& utf8Message);
     69 
     70 #endif  // FXJS_FXJSE_H_
     71