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// 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.
// MediaFileSystemRegistry registers pictures directories as File API
// filesystems and keeps track of the path to filesystem ID mappings.
// In the near future, MediaFileSystemRegistry will also support media devices.
#ifndef CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
#define CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
#pragma once
#include <map>
#include <string>
#include <utility>
#include <vector>
#include "base/basictypes.h"
#include "base/lazy_instance.h"
class FilePath;
namespace fileapi {
class IsolatedContext;
}
namespace chrome {
class MediaFileSystemRegistry {
public:
// (Filesystem ID, path)
typedef std::pair<std::string, FilePath> MediaFSIDAndPath;
// The instance is lazily created per browser process.
static MediaFileSystemRegistry* GetInstance();
// Returns the list of media filesystem IDs and paths.
// Called on the UI thread.
std::vector<MediaFSIDAndPath> GetMediaFileSystems() const;
private:
friend struct base::DefaultLazyInstanceTraits<MediaFileSystemRegistry>;
// Mapping of media directories to filesystem IDs.
typedef std::map<FilePath, std::string> MediaPathToFSIDMap;
// Obtain an instance of this class via GetInstance().
MediaFileSystemRegistry();
virtual ~MediaFileSystemRegistry();
// Registers a path as a media file system.
void RegisterPathAsFileSystem(const FilePath& path);
// Only accessed on the UI thread.
MediaPathToFSIDMap media_fs_map_;
DISALLOW_COPY_AND_ASSIGN(MediaFileSystemRegistry);
};
} // namespace chrome
#endif // CHROME_BROWSER_MEDIA_GALLERY_MEDIA_FILE_SYSTEM_REGISTRY_H_
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