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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_SYNC_FILE_SYSTEM_LOCAL_ROOT_DELETE_HELPER_H_
#define CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_ROOT_DELETE_HELPER_H_
#include "base/basictypes.h"
#include "base/callback.h"
#include "base/files/file.h"
#include "base/memory/ref_counted.h"
#include "base/memory/weak_ptr.h"
#include "storage/browser/fileapi/file_system_url.h"
class GURL;
namespace storage {
class FileSystemContext;
}
namespace sync_file_system {
class LocalFileSyncStatus;
// A helper class to delete the root directory of a given Sync FileSystem.
// This could happen when AppRoot (or SyncRoot) is deleted by remote operation,
// and we want to delete all local files + all pending local changes in this
// case.
//
// Expected to be called on and will callback on IO thread.
class RootDeleteHelper {
public:
typedef base::Callback<void(base::File::Error)> FileStatusCallback;
RootDeleteHelper(storage::FileSystemContext* file_system_context,
LocalFileSyncStatus* sync_status,
const storage::FileSystemURL& url,
const FileStatusCallback& callback);
~RootDeleteHelper();
void Run();
private:
void DidDeleteFileSystem(base::File::Error error);
void DidResetFileChangeTracker();
void DidOpenFileSystem(const GURL& root,
const std::string& name,
base::File::Error error);
scoped_refptr<storage::FileSystemContext> file_system_context_;
const storage::FileSystemURL url_;
FileStatusCallback callback_;
// Not owned; owner of this instance owns it.
LocalFileSyncStatus* sync_status_;
base::WeakPtrFactory<RootDeleteHelper> weak_factory_;
DISALLOW_COPY_AND_ASSIGN(RootDeleteHelper);
};
} // namespace sync_file_system
#endif // CHROME_BROWSER_SYNC_FILE_SYSTEM_LOCAL_ROOT_DELETE_HELPER_H_
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