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