| // Copyright 2016 The PDFium Authors |
| // 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 <optional> |
| |
| #include "core/fxcrt/fx_memory.h" |
| #include "core/fxcrt/unowned_ptr.h" |
| #include "core/fxcrt/widestring.h" |
| |
| 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: |
| FX_STACK_ALLOCATED(); |
| |
| explicit ScopedEventContext(IJS_Runtime* pRuntime); |
| ~ScopedEventContext(); |
| |
| IJS_EventContext* Get() const { return m_pContext; } |
| IJS_EventContext* operator->() const { return m_pContext; } |
| |
| private: |
| UnownedPtr<IJS_Runtime> const m_pRuntime; |
| UnownedPtr<IJS_EventContext> m_pContext; |
| }; |
| |
| static void Initialize(unsigned int slot, void* isolate, void* platform); |
| 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 std::optional<JS_Error> ExecuteScript(const WideString& script) = 0; |
| |
| protected: |
| IJS_Runtime() = default; |
| }; |
| |
| #endif // FXJS_IJS_RUNTIME_H_ |