Cleanup the fx_extension code.

This CL cleans up the fx_extension file. The stream code was moved to
fx_stream. IFX_FileAccess was removed and CFX_CRTFileAccess split to its
own file. Code shuffled from header to cpp file.

Change-Id: I700fdfcc9797cf4e8050cd9ba010ad8854feefbf
Reviewed-on: https://pdfium-review.googlesource.com/4371
Reviewed-by: Nicolás Peña <npm@chromium.org>
Commit-Queue: dsinclair <dsinclair@chromium.org>

1 files changed, 37 insertions, 0 deletions

diff --git a/core/fxcrt/ifxcrt_fileaccess.h b/core/fxcrt/ifxcrt_fileaccess.h
new file mode 100644
index 0000000000..9528b3b377
--- /dev/null
+++ b/core/fxcrt/ifxcrt_fileaccess.h
@@ -0,0 +1,37 @@
+// 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 CORE_FXCRT_IFXCRT_FILEACCESS_H_
+#define CORE_FXCRT_IFXCRT_FILEACCESS_H_
+
+#include <algorithm>
+#include <memory>
+
+#include "core/fxcrt/fx_basic.h"
+#include "core/fxcrt/fx_safe_types.h"
+
+class IFXCRT_FileAccess {
+ public:
+  static IFXCRT_FileAccess* Create();
+  virtual ~IFXCRT_FileAccess() {}
+
+  virtual bool Open(const CFX_ByteStringC& fileName, uint32_t dwMode) = 0;
+  virtual bool Open(const CFX_WideStringC& fileName, uint32_t dwMode) = 0;
+  virtual void Close() = 0;
+  virtual FX_FILESIZE GetSize() const = 0;
+  virtual FX_FILESIZE GetPosition() const = 0;
+  virtual FX_FILESIZE SetPosition(FX_FILESIZE pos) = 0;
+  virtual size_t Read(void* pBuffer, size_t szBuffer) = 0;
+  virtual size_t Write(const void* pBuffer, size_t szBuffer) = 0;
+  virtual size_t ReadPos(void* pBuffer, size_t szBuffer, FX_FILESIZE pos) = 0;
+  virtual size_t WritePos(const void* pBuffer,
+                          size_t szBuffer,
+                          FX_FILESIZE pos) = 0;
+  virtual bool Flush() = 0;
+  virtual bool Truncate(FX_FILESIZE szFile) = 0;
+};
+
+#endif  // CORE_FXCRT_IFXCRT_FILEACCESS_H_