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1 // Copyright 2017 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 #ifndef TESTING_FAKE_FILE_ACCESS_H_
6 #define TESTING_FAKE_FILE_ACCESS_H_
7 
8 #include <memory>
9 
10 #include "core/fxcrt/unowned_ptr.h"
11 #include "public/fpdf_dataavail.h"
12 #include "public/fpdfview.h"
13 #include "testing/range_set.h"
14 
15 class FakeFileAccess {
16  public:
17   explicit FakeFileAccess(FPDF_FILEACCESS* file_access);
18   ~FakeFileAccess();
19 
GetFileAccess()20   FPDF_FILEACCESS* GetFileAccess() const { return file_access_wrapper_.get(); }
GetFileAvail()21   FX_FILEAVAIL* GetFileAvail() const { return file_avail_.get(); }
GetDownloadHints()22   FX_DOWNLOADHINTS* GetDownloadHints() const { return download_hints_.get(); }
23 
24   FPDF_BOOL IsDataAvail(size_t offset, size_t size) const;
25   void AddSegment(size_t offset, size_t size);
26 
27   unsigned long GetFileSize();
28 
29   int GetBlock(unsigned long position, unsigned char* pBuf, unsigned long size);
30   void SetRequestedDataAvailable();
31   void SetWholeFileAvailable();
32 
33  private:
34   fxcrt::UnownedPtr<FPDF_FILEACCESS> file_access_;
35   std::unique_ptr<FPDF_FILEACCESS> file_access_wrapper_;
36   std::unique_ptr<FX_FILEAVAIL> file_avail_;
37   std::unique_ptr<FX_DOWNLOADHINTS> download_hints_;
38   RangeSet available_data_;
39   RangeSet requested_data_;
40 };
41 
42 #endif  // TESTING_FAKE_FILE_ACCESS_H_
43