1// Copyright 2016 PDFium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6
7#ifndef XFA_FXFA_PARSER_CXFA_WIDETEXTREAD_H_
8#define XFA_FXFA_PARSER_CXFA_WIDETEXTREAD_H_
9
10#include "core/fxcrt/cfx_retain_ptr.h"
11#include "xfa/fgas/crt/fgas_stream.h"
12
13class CXFA_WideTextRead : public IFGAS_Stream {
14 public:
15  template <typename T, typename... Args>
16  friend CFX_RetainPtr<T> pdfium::MakeRetain(Args&&... args);
17
18  // IFGAS_Stream
19  uint32_t GetAccessModes() const override;
20  int32_t GetLength() const override;
21  int32_t Seek(FX_STREAMSEEK eSeek, int32_t iOffset) override;
22  int32_t GetPosition() override;
23  bool IsEOF() const override;
24  int32_t ReadData(uint8_t* pBuffer, int32_t iBufferSize) override;
25  int32_t ReadString(FX_WCHAR* pStr, int32_t iMaxLength, bool& bEOS) override;
26  int32_t WriteData(const uint8_t* pBuffer, int32_t iBufferSize) override;
27  int32_t WriteString(const FX_WCHAR* pStr, int32_t iLength) override;
28  void Flush() override {}
29  bool SetLength(int32_t iLength) override;
30  int32_t GetBOM(uint8_t bom[4]) const override;
31  uint16_t GetCodePage() const override;
32  uint16_t SetCodePage(uint16_t wCodePage) override;
33  CFX_RetainPtr<IFGAS_Stream> CreateSharedStream(uint32_t dwAccess,
34                                                 int32_t iOffset,
35                                                 int32_t iLength) override;
36
37  CFX_WideString GetSrcText() const;
38
39 protected:
40  explicit CXFA_WideTextRead(const CFX_WideString& wsBuffer);
41  ~CXFA_WideTextRead() override;
42
43  CFX_WideString m_wsBuffer;
44  int32_t m_iPosition;
45};
46
47#endif  // XFA_FXFA_PARSER_CXFA_WIDETEXTREAD_H_
48