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// Copyright (c) 2010 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_DOWNLOAD_BASE_FILE_H_
#define CHROME_BROWSER_DOWNLOAD_BASE_FILE_H_
#pragma once
#include <string>
#include "base/file_path.h"
#include "base/linked_ptr.h"
#include "chrome/browser/power_save_blocker.h"
#include "googleurl/src/gurl.h"
namespace net {
class FileStream;
}
// File being downloaded and saved to disk. This is a base class
// for DownloadFile and SaveFile, which keep more state information.
class BaseFile {
public:
BaseFile(const FilePath& full_path,
const GURL& source_url,
const GURL& referrer_url,
int64 received_bytes,
const linked_ptr<net::FileStream>& file_stream);
~BaseFile();
bool Initialize();
// Write a new chunk of data to the file. Returns true on success (all bytes
// written to the file).
bool AppendDataToFile(const char* data, size_t data_len);
// Rename the download file. Returns true on success.
// |path_renamed_| is set to true only if |is_final_rename| is true.
// Marked virtual for testing.
virtual bool Rename(const FilePath& full_path, bool is_final_rename);
// Abort the download and automatically close the file.
void Cancel();
// Indicate that the download has finished. No new data will be received.
void Finish();
// Informs the OS that this file came from the internet.
void AnnotateWithSourceInformation();
FilePath full_path() const { return full_path_; }
bool path_renamed() const { return path_renamed_; }
bool in_progress() const { return file_stream_ != NULL; }
int64 bytes_so_far() const { return bytes_so_far_; }
virtual std::string DebugString() const;
protected:
bool Open();
void Close();
// Full path to the file including the file name.
FilePath full_path_;
// Whether the download is still using its initial temporary path.
bool path_renamed_;
private:
// Source URL for the file being downloaded.
GURL source_url_;
// The URL where the download was initiated.
GURL referrer_url_;
// OS file stream for writing
linked_ptr<net::FileStream> file_stream_;
// Amount of data received up so far, in bytes.
int64 bytes_so_far_;
// RAII handle to keep the system from sleeping while we're downloading.
PowerSaveBlocker power_save_blocker_;
DISALLOW_COPY_AND_ASSIGN(BaseFile);
};
#endif // CHROME_BROWSER_DOWNLOAD_BASE_FILE_H_
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