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// Copyright 2014 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#ifndef FXJS_XFA_FXJSE_H_
#define FXJS_XFA_FXJSE_H_
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "v8/include/v8.h"
namespace pdfium {
namespace fxjse {
// These are strings by design. With ASLR, their addresses should be random, so
// it should be very unlikely for an object to accidentally have the same tag.
extern const char kFuncTag[];
extern const char kClassTag[];
} // namespace fxjse
} // namespace pdfium
class CFXJSE_FormCalcContext;
class CFXJSE_Value;
class CJS_Result;
class CJX_Object;
// C++ object which is retrieved from v8 object's slot.
class CFXJSE_HostObject {
public:
static CFXJSE_HostObject* FromV8(v8::Local<v8::Value> arg);
virtual ~CFXJSE_HostObject();
// Two subclasses.
virtual CFXJSE_FormCalcContext* AsFormCalcContext();
virtual CJX_Object* AsCJXObject();
v8::Local<v8::Object> NewBoundV8Object(v8::Isolate* pIsolate,
v8::Local<v8::FunctionTemplate> tmpl);
protected:
CFXJSE_HostObject();
};
typedef CJS_Result (*FXJSE_MethodCallback)(
const v8::FunctionCallbackInfo<v8::Value>& info,
const WideString& functionName);
typedef void (*FXJSE_FuncCallback)(
CFXJSE_HostObject* pThis,
const v8::FunctionCallbackInfo<v8::Value>& info);
typedef v8::Local<v8::Value> (*FXJSE_PropGetter)(v8::Isolate* pIsolate,
v8::Local<v8::Object> pObject,
ByteStringView szPropName);
typedef void (*FXJSE_PropSetter)(v8::Isolate* pIsolate,
v8::Local<v8::Object> pObject,
ByteStringView szPropName,
v8::Local<v8::Value> pValue);
typedef int32_t (*FXJSE_PropTypeGetter)(v8::Isolate* pIsolate,
v8::Local<v8::Object> pObject,
ByteStringView szPropName,
bool bQueryIn);
enum FXJSE_ClassPropTypes {
FXJSE_ClassPropType_None,
FXJSE_ClassPropType_Property,
FXJSE_ClassPropType_Method
};
struct FXJSE_FUNCTION_DESCRIPTOR {
const char* tag; // `pdfium::fxjse::kFuncTag` always.
const char* name;
FXJSE_FuncCallback callbackProc;
};
struct FXJSE_CLASS_DESCRIPTOR {
const char* tag; // `pdfium::fxjse::kClassTag` always.
const char* name;
const FXJSE_FUNCTION_DESCRIPTOR* methods;
int32_t methNum;
FXJSE_PropTypeGetter dynPropTypeGetter;
FXJSE_PropGetter dynPropGetter;
FXJSE_PropSetter dynPropSetter;
FXJSE_MethodCallback dynMethodCall;
};
extern const FXJSE_CLASS_DESCRIPTOR GlobalClassDescriptor;
extern const FXJSE_CLASS_DESCRIPTOR NormalClassDescriptor;
extern const FXJSE_CLASS_DESCRIPTOR VariablesClassDescriptor;
extern const FXJSE_CLASS_DESCRIPTOR kFormCalcFM2JSDescriptor;
void FXJSE_ThrowMessage(ByteStringView utf8Message);
#endif // FXJS_XFA_FXJSE_H_