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