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diff --git a/fpdfsdk/javascript/JS_GlobalData.h b/fpdfsdk/javascript/JS_GlobalData.h
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+// Copyright 2014 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 FPDFSDK_JAVASCRIPT_JS_GLOBALDATA_H_
+#define FPDFSDK_JAVASCRIPT_JS_GLOBALDATA_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+#define JS_GLOBALDATA_TYPE_NUMBER 0
+#define JS_GLOBALDATA_TYPE_BOOLEAN 1
+#define JS_GLOBALDATA_TYPE_STRING 2
+#define JS_GLOBALDATA_TYPE_OBJECT 3
+#define JS_GLOBALDATA_TYPE_NULL 4
+
+class CJS_KeyValue;
+class CPDFDoc_Environment;
+
+class CJS_GlobalVariableArray {
+ public:
+ CJS_GlobalVariableArray();
+ virtual ~CJS_GlobalVariableArray();
+
+ void Add(CJS_KeyValue* p);
+ int Count() const;
+ CJS_KeyValue* GetAt(int index) const;
+ void Copy(const CJS_GlobalVariableArray& array);
+
+ void Empty();
+
+ private:
+ CFX_ArrayTemplate<CJS_KeyValue*> array;
+};
+
+class CJS_KeyValue {
+ public:
+ CJS_KeyValue() {}
+ virtual ~CJS_KeyValue() {}
+
+ CFX_ByteString sKey;
+ int nType; // 0:int 1:bool 2:string 3:obj
+ double dData;
+ bool bData;
+ CFX_ByteString sData;
+ CJS_GlobalVariableArray objData;
+};
+
+class CJS_GlobalData_Element {
+ public:
+ CJS_GlobalData_Element() {}
+ virtual ~CJS_GlobalData_Element() {}
+
+ CJS_KeyValue data;
+ FX_BOOL bPersistent;
+};
+
+class CJS_GlobalData {
+ public:
+ static CJS_GlobalData* GetRetainedInstance(CPDFDoc_Environment* pApp);
+ void Release();
+
+ void SetGlobalVariableNumber(const FX_CHAR* propname, double dData);
+ void SetGlobalVariableBoolean(const FX_CHAR* propname, bool bData);
+ void SetGlobalVariableString(const FX_CHAR* propname,
+ const CFX_ByteString& sData);
+ void SetGlobalVariableObject(const FX_CHAR* propname,
+ const CJS_GlobalVariableArray& array);
+ void SetGlobalVariableNull(const FX_CHAR* propname);
+
+ FX_BOOL SetGlobalVariablePersistent(const FX_CHAR* propname,
+ FX_BOOL bPersistent);
+ FX_BOOL DeleteGlobalVariable(const FX_CHAR* propname);
+
+ int32_t GetSize() const;
+ CJS_GlobalData_Element* GetAt(int index) const;
+
+ private:
+ static CJS_GlobalData* g_Instance;
+
+ CJS_GlobalData();
+ ~CJS_GlobalData();
+
+ void LoadGlobalPersistentVariables();
+ void SaveGlobalPersisitentVariables();
+
+ CJS_GlobalData_Element* GetGlobalVariable(const FX_CHAR* propname);
+ int FindGlobalVariable(const FX_CHAR* propname);
+
+ void LoadFileBuffer(const FX_WCHAR* sFilePath,
+ uint8_t*& pBuffer,
+ int32_t& nLength);
+ void WriteFileBuffer(const FX_WCHAR* sFilePath,
+ const FX_CHAR* pBuffer,
+ int32_t nLength);
+ void MakeByteString(const CFX_ByteString& name,
+ CJS_KeyValue* pData,
+ CFX_BinaryBuf& sData);
+
+ size_t m_RefCount;
+ CFX_ArrayTemplate<CJS_GlobalData_Element*> m_arrayGlobalData;
+ CFX_WideString m_sFilePath;
+};
+
+#endif // FPDFSDK_JAVASCRIPT_JS_GLOBALDATA_H_