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// Copyright 2013 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 CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
#define CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
#include <set>
#include <string>
#include "base/basictypes.h"
#include "base/files/file_path.h"
#include "base/lazy_instance.h"
#include "base/memory/scoped_ptr.h"
namespace itunes {
class ITunesDataProvider;
class ITunesDataProviderTest;
}
namespace picasa {
class PicasaDataProvider;
}
namespace chrome {
// This class lives on the MediaTaskRunner thread. It has some static
// methods which are called on the UI thread.
//
// MediaTaskRunner is not guaranteed to be one thread, but it is guaranteed
// to be a series of sequential calls. See SequencedTaskRunner for details.
class ImportedMediaGalleryRegistry {
public:
static ImportedMediaGalleryRegistry* GetInstance();
// Should be called on the UI thread only.
std::string RegisterPicasaFilesystemOnUIThread(
const base::FilePath& database_path);
std::string RegisterITunesFilesystemOnUIThread(
const base::FilePath& xml_library_path);
bool RevokeImportedFilesystemOnUIThread(const std::string& fsid);
// Should be called on the MediaTaskRunner thread only.
#if defined(OS_WIN) || defined(OS_MACOSX)
static picasa::PicasaDataProvider* PicasaDataProvider();
static itunes::ITunesDataProvider* ITunesDataProvider();
#endif // defined(OS_WIN) || defined(OS_MACOSX)
private:
friend struct base::DefaultLazyInstanceTraits<ImportedMediaGalleryRegistry>;
friend class itunes::ITunesDataProviderTest;
ImportedMediaGalleryRegistry();
virtual ~ImportedMediaGalleryRegistry();
#if defined(OS_WIN) || defined(OS_MACOSX)
void RegisterPicasaFileSystem(const base::FilePath& database_path);
void RevokePicasaFileSystem();
void RegisterITunesFileSystem(const base::FilePath& xml_library_path);
void RevokeITunesFileSystem();
// The data providers are only set or accessed on the task runner thread.
scoped_ptr<picasa::PicasaDataProvider> picasa_data_provider_;
scoped_ptr<itunes::ITunesDataProvider> itunes_data_provider_;
// The remaining members are only accessed on the IO thread.
std::set<std::string> picasa_fsids_;
std::set<std::string> itunes_fsids_;
#ifndef NDEBUG
base::FilePath picasa_database_path_;
base::FilePath itunes_xml_library_path_;
#endif
#endif // defined(OS_WIN) || defined(OS_MACOSX)
DISALLOW_COPY_AND_ASSIGN(ImportedMediaGalleryRegistry);
};
} // namespace chrome
#endif // CHROME_BROWSER_MEDIA_GALLERIES_IMPORTED_MEDIA_GALLERY_REGISTRY_H_
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