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// Copyright (c) 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_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_
#define CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_
#include <stdint.h>
#include <string>
#include "base/callback.h"
#include "base/files/file_path.h"
#include "base/macros.h"
#include "base/memory/ref_counted.h"
#include "base/memory/scoped_ptr.h"
#include "build/build_config.h"
#include "chrome/browser/media_galleries/media_galleries_preferences.h"
#include "storage/browser/fileapi/file_system_backend.h"
#include "storage/browser/fileapi/task_runner_bound_observer_list.h"
namespace base {
class SequencedTaskRunner;
}
namespace storage {
class FileSystemURL;
}
namespace net {
class URLRequest;
}
class MediaPathFilter;
class DeviceMediaAsyncFileUtil;
class MediaFileSystemBackend : public storage::FileSystemBackend {
public:
static const char kMediaTaskRunnerName[];
MediaFileSystemBackend(
const base::FilePath& profile_path,
base::SequencedTaskRunner* media_task_runner);
~MediaFileSystemBackend() override;
static bool CurrentlyOnMediaTaskRunnerThread();
static scoped_refptr<base::SequencedTaskRunner> MediaTaskRunner();
// Construct the mount point for the gallery specified by |pref_id| in
// the profile located in |profile_path|.
static std::string ConstructMountName(const base::FilePath& profile_path,
const std::string& extension_id,
MediaGalleryPrefId pref_id);
static bool AttemptAutoMountForURLRequest(
const net::URLRequest* url_request,
const storage::FileSystemURL& filesystem_url,
const std::string& storage_domain,
const base::Callback<void(base::File::Error result)>& callback);
// FileSystemBackend implementation.
bool CanHandleType(storage::FileSystemType type) const override;
void Initialize(storage::FileSystemContext* context) override;
void ResolveURL(const storage::FileSystemURL& url,
storage::OpenFileSystemMode mode,
const OpenFileSystemCallback& callback) override;
storage::AsyncFileUtil* GetAsyncFileUtil(
storage::FileSystemType type) override;
storage::WatcherManager* GetWatcherManager(
storage::FileSystemType type) override;
storage::CopyOrMoveFileValidatorFactory* GetCopyOrMoveFileValidatorFactory(
storage::FileSystemType type,
base::File::Error* error_code) override;
storage::FileSystemOperation* CreateFileSystemOperation(
const storage::FileSystemURL& url,
storage::FileSystemContext* context,
base::File::Error* error_code) const override;
bool SupportsStreaming(const storage::FileSystemURL& url) const override;
bool HasInplaceCopyImplementation(
storage::FileSystemType type) const override;
scoped_ptr<storage::FileStreamReader> CreateFileStreamReader(
const storage::FileSystemURL& url,
int64_t offset,
int64_t max_bytes_to_read,
const base::Time& expected_modification_time,
storage::FileSystemContext* context) const override;
scoped_ptr<storage::FileStreamWriter> CreateFileStreamWriter(
const storage::FileSystemURL& url,
int64_t offset,
storage::FileSystemContext* context) const override;
storage::FileSystemQuotaUtil* GetQuotaUtil() override;
const storage::UpdateObserverList* GetUpdateObservers(
storage::FileSystemType type) const override;
const storage::ChangeObserverList* GetChangeObservers(
storage::FileSystemType type) const override;
const storage::AccessObserverList* GetAccessObservers(
storage::FileSystemType type) const override;
private:
// Store the profile path. We need this to create temporary snapshot files.
const base::FilePath profile_path_;
scoped_refptr<base::SequencedTaskRunner> media_task_runner_;
scoped_ptr<MediaPathFilter> media_path_filter_;
scoped_ptr<storage::CopyOrMoveFileValidatorFactory>
media_copy_or_move_file_validator_factory_;
scoped_ptr<storage::AsyncFileUtil> native_media_file_util_;
scoped_ptr<DeviceMediaAsyncFileUtil> device_media_async_file_util_;
#if defined(OS_WIN) || defined(OS_MACOSX)
scoped_ptr<storage::AsyncFileUtil> picasa_file_util_;
scoped_ptr<storage::AsyncFileUtil> itunes_file_util_;
// Used for usage UMA tracking.
bool picasa_file_util_used_;
bool itunes_file_util_used_;
#endif // defined(OS_WIN) || defined(OS_MACOSX)
#if defined(OS_MACOSX)
scoped_ptr<storage::AsyncFileUtil> iphoto_file_util_;
// Used for usage UMA tracking.
bool iphoto_file_util_used_;
#endif // defined(OS_MACOSX)
DISALLOW_COPY_AND_ASSIGN(MediaFileSystemBackend);
};
#endif // CHROME_BROWSER_MEDIA_GALLERIES_FILEAPI_MEDIA_FILE_SYSTEM_BACKEND_H_
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