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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.
#ifndef CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_MOVE_OPERATION_H_
#define CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_MOVE_OPERATION_H_
#include "base/basictypes.h"
#include "base/memory/scoped_ptr.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/chromeos/drive/drive_resource_metadata.h"
#include "chrome/browser/google_apis/gdata_errorcode.h"
class FilePath;
class GURL;
namespace drive {
class DriveCache;
class DriveEntryProto;
class DriveResourceMetadata;
class DriveServiceInterface;
namespace file_system {
class OperationObserver;
// This class encapsulates the drive Move function. It is resposible for
// sending the request to the drive API, then updating the local state and
// metadata to reflect the new state.
class MoveOperation {
public:
MoveOperation(DriveServiceInterface* drive_service,
DriveResourceMetadata* metadata,
OperationObserver* observer);
virtual ~MoveOperation();
// Performs the move operation on the file at drive path |src_file_path|
// with a target of |dest_file_path|. Invokes |callback| when finished with
// the result of the operation.
void Move(const FilePath& src_file_path,
const FilePath& dest_file_path,
const FileOperationCallback& callback);
private:
// Part of Move(). Called after GetEntryInfoPairByPaths() is
// complete. |callback| must not be null.
void MoveAfterGetEntryInfoPair(
const FilePath& dest_file_path,
const FileOperationCallback& callback,
scoped_ptr<EntryInfoPairResult> result);
// A pass-through callback used for bridging from
// FileMoveCallback to FileOperationCallback.
void OnFilePathUpdated(const FileOperationCallback& cllback,
DriveFileError error,
const FilePath& file_path);
// Renames a file or directory at |file_path| to |new_name| in the same
// directory. |callback| will receive the new file path if the operation is
// successful. If the new name already exists in the same directory, the file
// name is uniquified by adding a parenthesized serial number like
// "foo (2).txt"
//
// Can be called from UI thread. |callback| is run on the calling thread.
// |callback| must not be null.
void Rename(const FilePath& file_path,
const FilePath::StringType& new_name,
const FileMoveCallback& callback);
// Part of Rename(). Called after GetEntryInfoByPath() is complete.
// |callback| must not be null.
void RenameAfterGetEntryInfo(const FilePath& file_path,
const FilePath::StringType& new_name,
const FileMoveCallback& callback,
DriveFileError error,
scoped_ptr<DriveEntryProto> entry_proto);
// Callback for handling resource rename attempt. Renames a file or
// directory at |file_path| on the client side.
// |callback| must not be null.
void RenameEntryLocally(const FilePath& file_path,
const FilePath::StringType& new_name,
const FileMoveCallback& callback,
google_apis::GDataErrorCode status,
const GURL& document_url);
// Removes a file or directory at |file_path| from the current directory if
// it's not in the root directory. This essentially moves an entry to the
// root directory on the server side.
//
// Can be called from UI thread. |callback| is run on the calling thread.
// |callback| must not be null.
void RemoveEntryFromNonRootDirectory(const FileMoveCallback& callback,
DriveFileError error,
const FilePath& file_path);
// Part of RemoveEntryFromNonRootDirectory(). Called after
// GetEntryInfoPairByPaths() is complete. |callback| must not be null.
void RemoveEntryFromNonRootDirectoryAfterEntryInfoPair(
const FileMoveCallback& callback,
scoped_ptr<EntryInfoPairResult> result);
// Moves a file or directory at |file_path| in the root directory to
// another directory at |dir_path|. This function does nothing if
// |dir_path| points to the root directory.
//
// Can be called from UI thread. |callback| is run on the calling thread.
// |callback| must not be null.
void MoveEntryFromRootDirectory(const FilePath& directory_path,
const FileOperationCallback& callback,
DriveFileError error,
const FilePath& file_path);
// Part of MoveEntryFromRootDirectory(). Called after
// GetEntryInfoPairByPaths() is complete. |callback| must not be null.
void MoveEntryFromRootDirectoryAfterGetEntryInfoPair(
const FileOperationCallback& callback,
scoped_ptr<EntryInfoPairResult> result);
// Moves entry specified by |file_path| to the directory specified by
// |dir_path| and calls |callback| asynchronously.
// |callback| must not be null.
void MoveEntryToDirectory(const FilePath& file_path,
const FilePath& directory_path,
const FileMoveCallback& callback,
google_apis::GDataErrorCode status,
const GURL& document_url);
// Callback when an entry is moved to another directory on the client side.
// Notifies the directory change and runs |callback|.
// |callback| must not be null.
void NotifyAndRunFileOperationCallback(
const FileOperationCallback& callback,
DriveFileError error,
const FilePath& moved_file_path);
// Callback when an entry is moved to another directory on the client side.
// Notifies the directory change and runs |callback|.
// |callback| must not be null.
void NotifyAndRunFileMoveCallback(
const FileMoveCallback& callback,
DriveFileError error,
const FilePath& moved_file_path);
DriveServiceInterface* drive_service_;
DriveResourceMetadata* metadata_;
OperationObserver* observer_;
// WeakPtrFactory bound to the UI thread.
// Note: This should remain the last member so it'll be destroyed and
// invalidate the weak pointers before any other members are destroyed.
base::WeakPtrFactory<MoveOperation> weak_ptr_factory_;
DISALLOW_COPY_AND_ASSIGN(MoveOperation);
};
} // namespace file_system
} // namespace drive
#endif // CHROME_BROWSER_CHROMEOS_DRIVE_FILE_SYSTEM_MOVE_OPERATION_H_
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