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// Copyright 2016 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_IJS_RUNTIME_H_
#define FXJS_IJS_RUNTIME_H_
#include <memory>
#include "core/fxcrt/fx_string.h"
#include "core/fxcrt/fx_system.h"
#include "core/fxcrt/unowned_ptr.h"
#include "third_party/base/optional.h"
#ifdef PDF_ENABLE_XFA
#include "fxjs/fxjse.h"
#endif // PDF_ENABLE_XFA
class CJS_Runtime;
class CPDFSDK_FormFillEnvironment;
class IJS_EventContext;
// Owns the FJXS objects needed to actually execute JS, if possible. This
// virtual interface is backed by either an actual JS runtime, or a stub,
// when JS is not present.
class IJS_Runtime {
public:
struct JS_Error {
int line;
int column;
WideString exception;
JS_Error(int line, int column, const WideString& exception);
};
class ScopedEventContext {
public:
explicit ScopedEventContext(IJS_Runtime* pRuntime);
~ScopedEventContext();
IJS_EventContext* Get() const { return m_pContext.Get(); }
IJS_EventContext* operator->() const { return m_pContext.Get(); }
private:
UnownedPtr<IJS_Runtime> m_pRuntime;
UnownedPtr<IJS_EventContext> m_pContext;
};
static void Initialize(unsigned int slot, void* isolate);
static void Destroy();
static std::unique_ptr<IJS_Runtime> Create(
CPDFSDK_FormFillEnvironment* pFormFillEnv);
virtual ~IJS_Runtime();
virtual CJS_Runtime* AsCJSRuntime() = 0;
virtual IJS_EventContext* NewEventContext() = 0;
virtual void ReleaseEventContext(IJS_EventContext* pContext) = 0;
virtual CPDFSDK_FormFillEnvironment* GetFormFillEnv() const = 0;
virtual Optional<JS_Error> ExecuteScript(const WideString& script) = 0;
#ifdef PDF_ENABLE_XFA
virtual bool GetValueByNameFromGlobalObject(const ByteStringView& utf8Name,
CFXJSE_Value* pValue) = 0;
virtual bool SetValueByNameInGlobalObject(const ByteStringView& utf8Name,
CFXJSE_Value* pValue) = 0;
#endif // PDF_ENABLE_XFA
protected:
IJS_Runtime() = default;
};
#endif // FXJS_IJS_RUNTIME_H_
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