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// 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_
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