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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_GDATA_GDATA_FILE_SYSTEM_PROXY_H_
#define CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_PROXY_H_
#pragma once
#include "webkit/chromeos/fileapi/remote_file_system_proxy.h"
class Profile;
namespace gdata {
class GDataEntry;
class GDataEntryProto;
class GDataDirectoryProto;
class GDataFileSystemInterface;
// The interface class for remote file system proxy.
class GDataFileSystemProxy : public fileapi::RemoteFileSystemProxyInterface {
public:
// |profile| is used to create GDataFileSystem, which is a per-profile
// instance.
explicit GDataFileSystemProxy(GDataFileSystemInterface* file_system);
virtual ~GDataFileSystemProxy();
// fileapi::RemoteFileSystemProxyInterface overrides.
virtual void GetFileInfo(const GURL& path,
const fileapi::FileSystemOperationInterface::GetMetadataCallback&
callback) OVERRIDE;
virtual void Copy(const GURL& src_path, const GURL& dest_path,
const fileapi::FileSystemOperationInterface::StatusCallback& callback)
OVERRIDE;
virtual void Move(const GURL& src_path, const GURL& dest_path,
const fileapi::FileSystemOperationInterface::StatusCallback& callback)
OVERRIDE;
virtual void ReadDirectory(const GURL& path,
const fileapi::FileSystemOperationInterface::ReadDirectoryCallback&
callback) OVERRIDE;
virtual void Remove(const GURL& path, bool recursive,
const fileapi::FileSystemOperationInterface::StatusCallback& callback)
OVERRIDE;
virtual void CreateDirectory(
const GURL& file_url,
bool exclusive,
bool recursive,
const fileapi::FileSystemOperationInterface::StatusCallback& callback)
OVERRIDE;
virtual void Truncate(const GURL& file_url, int64 length,
const fileapi::FileSystemOperationInterface::StatusCallback& callback)
OVERRIDE;
virtual void CreateSnapshotFile(
const GURL& path,
const fileapi::FileSystemOperationInterface::SnapshotFileCallback&
callback) OVERRIDE;
virtual void CreateWritableSnapshotFile(
const GURL& path,
const fileapi::WritableSnapshotFile& callback) OVERRIDE;
virtual void OpenFile(
const GURL& path,
int file_flags,
base::ProcessHandle peer_handle,
const fileapi::FileSystemOperationInterface::OpenFileCallback&
callback) OVERRIDE;
// TODO(zelidrag): More methods to follow as we implement other parts of FSO.
private:
// Checks if a given |url| belongs to this file system. If it does,
// the call will return true and fill in |file_path| with a file path of
// a corresponding element within this file system.
static bool ValidateUrl(const GURL& url, FilePath* file_path);
// Helper callback for relaying reply for metadata retrieval request to the
// calling thread.
void OnGetMetadata(
const FilePath& file_path,
const fileapi::FileSystemOperationInterface::GetMetadataCallback&
callback,
base::PlatformFileError error,
const FilePath& entry_path,
scoped_ptr<gdata::GDataEntryProto> entry_proto);
// Helper callback for relaying reply for GetEntryInfoByPath() to the
// calling thread.
void OnGetEntryInfoByPath(
const fileapi::FileSystemOperationInterface::SnapshotFileCallback&
callback,
base::PlatformFileError error,
const FilePath& entry_path,
scoped_ptr<GDataEntryProto> entry_proto);
// Helper callback for relaying reply for ReadDirectory() to the calling
// thread.
void OnReadDirectory(
const fileapi::FileSystemOperationInterface::ReadDirectoryCallback&
callback,
base::PlatformFileError error,
bool hide_hosted_documents,
scoped_ptr<GDataDirectoryProto> directory_proto);
// Helper callback for relaying reply for CreateWritableSnapshotFile() to
// the calling thread.
void OnCreateWritableSnapshotFile(
const FilePath& virtual_path,
const fileapi::WritableSnapshotFile& callback,
base::PlatformFileError result,
const FilePath& local_path);
// Helper callback for closing the local cache file and committing the dirty
// flag. This is triggered when the callback for CreateWritableSnapshotFile
// released the refcounted reference to the file.
void CloseWritableSnapshotFile(
const FilePath& virtual_path,
const FilePath& local_path);
// Invoked during Truncate() operation. This is called when a local modifiable
// cache is ready for truncation.
void OnFileOpenedForTruncate(
const FilePath& virtual_path,
int64 length,
const fileapi::FileSystemOperationInterface::StatusCallback& callback,
base::PlatformFileError open_result,
const FilePath& local_cache_path);
// Invoked during Truncate() operation. This is called when the truncation of
// a local cache file is finished on FILE thread.
void DidTruncate(
const FilePath& virtual_path,
const fileapi::FileSystemOperationInterface::StatusCallback& callback,
base::PlatformFileError* truncate_result);
// GDataFileSystemProxy is owned by Profile, which outlives
// GDataFileSystemProxy, which is owned by CrosMountPointProvider (i.e. by
// the time Profile is removed, the file manager is already gone). Hence
// it's safe to use this as a raw pointer.
GDataFileSystemInterface* file_system_;
};
} // namespace chromeos
#endif // CHROME_BROWSER_CHROMEOS_GDATA_GDATA_FILE_SYSTEM_PROXY_H_
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