Isolated FS for media devices.

webkit/fileapi/media_file_system_proxy_win.h

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef WEBKIT_FILEAPI_MEDIA_FILE_SYSTEM_PROXY_WIN_H_
+#define WEBKIT_FILEAPI_MEDIA_FILE_SYSTEM_PROXY_WIN_H_
+
+#include <map>
+#include <vector>
+
+#include <PortableDeviceApi.h>  // Include this header for Windows Portable Device API interfaces
+#include <PortableDevice.h>     // Include this header for Windows Portable Device definitions
+
+#include "base/callback.h"
+#include "base/file_path.h"
+#include "base/file_util_proxy.h"
+#include "base/platform_file.h"
+#include "webkit/fileapi/media_file_system_proxy.h"
+#include "base/win/scoped_comptr.h"
+
+
+class GURL;
+
+using base::PlatformFileError;
+
+namespace fileapi {
+
+class FileSystemOperationContext;
+
+// The interface class for media file system proxy.
+class MediaFileSystemProxyWin : public fileapi::MediaFileSystemProxyInterface {
+ public:
+  // Some of the proxy routines are just wrapping around the FileUtilProxy's
+  // relay methods, so we use the same types as FileUtilProxy for them.
+  typedef base::FileUtilProxy::Entry Entry;
+  typedef base::Callback<void(PlatformFileError,
+                              const std::vector<Entry>&,
+                              bool has_more)> ReadDirectoryCallback;
+
+  MediaFileSystemProxyWin(const FilePath::StringType& device_id);
+  ~MediaFileSystemProxyWin();
+
+  // Gets the file or directory info for given|path|.
+  virtual void GetFileInfo(const FileSystemURL& url,
+      const FileSystemOperationInterface::GetMetadataCallback& callback);
+
+  // Copies a file or directory from |src_url| to |dest_url|. If
+  // |src_url| is a directory, the contents of |src_url| are copied to
+  // |dest_url| recursively. A new file or directory is created at
+  // |dest_url| as needed.
+  virtual void Copy(
+      const FileSystemURL& src_url,
+      const FileSystemURL& dest_url,
+      const FileSystemOperationInterface::StatusCallback& callback);
+
+  // Moves a file or directory from |src_url| to |dest_url|. A new file
+  // or directory is created at |dest_url| as needed.
+  virtual void Move(
+      const FileSystemURL& src_url,
+      const FileSystemURL& dest_url,
+      const FileSystemOperationInterface::StatusCallback& callback);
+
+  // Reads contents of a directory at |url|.
+  virtual void ReadDirectory(
+      FileSystemOperationContext* context,
+      const FileSystemURL& url,
+      const FileSystemOperationInterface::ReadDirectoryCallback& callback);
+
+  // Removes a file or directory at |url|. If |recursive| is true, remove
+  // all files and directories under the directory at |url| recursively.
+  virtual void Remove(const FileSystemURL& url, bool recursive,
+      const FileSystemOperationInterface::StatusCallback& callback);
+
+  // Creates a directory at |url|. If |exclusive| is true, an error is
+  // raised in case a directory is already present at the URL. If
+  // |recursive| is true, create parent directories as needed just like
+  // mkdir -p does.
+  virtual void CreateDirectory(
+      const FileSystemURL& url,
+      bool exclusive,
+      bool recursive,
+      const FileSystemOperationInterface::StatusCallback& callback);
+
+  // Creates a file at |url|. If the flag |is_exclusive| is true, an
+  // error is raised when a file already exists at the path. It is
+  // an error if a directory or a hosted document is already present at the
+  // path, or the parent directory of the path is not present yet.
+  virtual void CreateFile(
+      const FileSystemURL& url,
+      bool exclusive,
+      const FileSystemOperationInterface::StatusCallback& callback);
+
+  // Opens file for a give |url| with specified |flags| (see
+  // base::PlatformFileFlags for details).
+  virtual void OpenFile(
+      const FileSystemURL& url,
+      int flags,
+      base::ProcessHandle peer_handle,
+      const FileSystemOperationInterface::OpenFileCallback& callback);
+
+  // Notifies that a file opened by OpenFile (at |path|) is closed.
+  virtual void NotifyCloseFile(const FileSystemURL& url);
+
+private:
+  // Store a map of entry full path with the corresponding object id in the device.
+  // Key: Entry.FullPath
+  // Value: Object identifier specified by the device. 
+  typedef std::map<std::string, std::string> ObjectIdMap;
+
+  // MTP Device identifier.
+  FilePath::StringType device_id_;
+
+  ObjectIdMap object_id_map_;
+  base::win::ScopedComPtr<IPortableDevice> portable_device_;
+};
+
+}  // namespace fileapi
+
+#endif  // WEBKIT_FILEAPI_MEDIA_FILE_SYSTEM_PROXY_H_