// 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 _XFA_BASIC_IMP
#define _XFA_BASIC_IMP
typedef struct _XFA_NOTSUREATTRIBUTE {
    XFA_ELEMENT				eElement;
    XFA_ATTRIBUTE			eAttribute;
    XFA_ATTRIBUTETYPE		eType;
    void*				pValue;
} XFA_NOTSUREATTRIBUTE, * XFA_LPNOTSUREATTRIBUTE;
typedef XFA_NOTSUREATTRIBUTE const * XFA_LPCNOTSUREATTRIBUTE;
XFA_LPCNOTSUREATTRIBUTE XFA_GetNotsureAttribute(XFA_ELEMENT eElement, XFA_ATTRIBUTE eAttribute, XFA_ATTRIBUTETYPE eType = XFA_ATTRIBUTETYPE_NOTSURE);
class CXFA_WideTextRead : public IFX_Stream
{
public:
    CXFA_WideTextRead(const CFX_WideString &wsBuffer);
    virtual void				Release();
    virtual IFX_Stream*		Retain();

    virtual FX_DWORD			GetAccessModes() const;
    virtual int32_t			GetLength() const;
    virtual int32_t			Seek(FX_STREAMSEEK eSeek, int32_t iOffset);
    virtual int32_t			GetPosition();
    virtual FX_BOOL				IsEOF() const;

    virtual int32_t			ReadData(uint8_t* pBuffer, int32_t iBufferSize)
    {
        return 0;
    }
    virtual int32_t			ReadString(FX_WCHAR* pStr, int32_t iMaxLength, FX_BOOL &bEOS, int32_t const *pByteSize = NULL);
    virtual int32_t			WriteData(const uint8_t* pBuffer, int32_t iBufferSize)
    {
        return 0;
    }
    virtual int32_t			WriteString(const FX_WCHAR* pStr, int32_t iLength)
    {
        return 0;
    }
    virtual void				Flush() {}
    virtual FX_BOOL				SetLength(int32_t iLength)
    {
        return FALSE;
    }

    virtual int32_t			GetBOM(uint8_t bom[4]) const
    {
        return 0;
    }
    virtual FX_WORD				GetCodePage() const;
    virtual FX_WORD				SetCodePage(FX_WORD wCodePage);

    virtual void				Lock() {}
    virtual void				Unlock() {}

    virtual IFX_Stream*		CreateSharedStream(FX_DWORD dwAccess, int32_t iOffset, int32_t iLength)
    {
        return NULL;
    }

    CFX_WideString				GetSrcText() const
    {
        return m_wsBuffer;
    }
protected:
    CFX_WideString				m_wsBuffer;
    int32_t					m_iPosition;
    int32_t					m_iRefCount;
};
#endif