| // Copyright 2014 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_CFX_GLOBALDATA_H_ |
| #define FXJS_CFX_GLOBALDATA_H_ |
| |
| #include <memory> |
| #include <vector> |
| |
| #include "core/fxcrt/binary_buffer.h" |
| #include "core/fxcrt/unowned_ptr.h" |
| #include "fxjs/cfx_keyvalue.h" |
| #include "third_party/abseil-cpp/absl/types/optional.h" |
| #include "third_party/base/span.h" |
| |
| class CFX_GlobalData { |
| public: |
| class Delegate { |
| public: |
| virtual ~Delegate() = default; |
| |
| virtual bool StoreBuffer(pdfium::span<const uint8_t> pBuffer) = 0; |
| virtual absl::optional<pdfium::span<uint8_t>> LoadBuffer() = 0; |
| virtual void BufferDone() = 0; |
| }; |
| |
| class Element { |
| public: |
| Element(); |
| ~Element(); |
| |
| CFX_KeyValue data; |
| bool bPersistent = false; |
| }; |
| |
| static CFX_GlobalData* GetRetainedInstance(Delegate* pDelegate); |
| bool Release(); |
| |
| void SetGlobalVariableNumber(ByteString propname, double dData); |
| void SetGlobalVariableBoolean(ByteString propname, bool bData); |
| void SetGlobalVariableString(ByteString propname, const ByteString& sData); |
| void SetGlobalVariableObject( |
| ByteString propname, |
| std::vector<std::unique_ptr<CFX_KeyValue>> array); |
| void SetGlobalVariableNull(ByteString propname); |
| bool SetGlobalVariablePersistent(ByteString propname, bool bPersistent); |
| bool DeleteGlobalVariable(ByteString propname); |
| |
| int32_t GetSize() const; |
| Element* GetAt(int index); |
| |
| // Exposed for testing. |
| Element* GetGlobalVariable(const ByteString& sPropname); |
| |
| private: |
| using iterator = std::vector<std::unique_ptr<Element>>::iterator; |
| |
| explicit CFX_GlobalData(Delegate* pDelegate); |
| ~CFX_GlobalData(); |
| |
| bool LoadGlobalPersistentVariables(); |
| bool LoadGlobalPersistentVariablesFromBuffer(pdfium::span<uint8_t> buffer); |
| bool SaveGlobalPersisitentVariables(); |
| iterator FindGlobalVariable(const ByteString& sPropname); |
| |
| size_t m_RefCount = 0; |
| UnownedPtr<Delegate> const m_pDelegate; |
| std::vector<std::unique_ptr<Element>> m_arrayGlobalData; |
| }; |
| |
| #endif // FXJS_CFX_GLOBALDATA_H_ |