1// Copyright 2014 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#ifndef COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_
6#define COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_
7
8#include <stdint.h>
9
10#include "base/macros.h"
11#include "base/memory/ref_counted.h"
12#include "base/memory/scoped_ptr.h"
13#include "base/threading/thread_checker.h"
14#include "base/time/time.h"
15#include "components/component_updater/crx_downloader.h"
16#include "net/url_request/url_fetcher_delegate.h"
17
18namespace net {
19class URLFetcher;
20class URLRequestContextGetter;
21}
22
23namespace component_updater {
24
25// Implements a CRX downloader in top of the URLFetcher.
26class UrlFetcherDownloader : public CrxDownloader,
27                             public net::URLFetcherDelegate {
28 protected:
29  friend class CrxDownloader;
30  UrlFetcherDownloader(scoped_ptr<CrxDownloader> successor,
31                       net::URLRequestContextGetter* context_getter,
32                       scoped_refptr<base::SequencedTaskRunner> task_runner);
33  virtual ~UrlFetcherDownloader();
34
35 private:
36  // Overrides for CrxDownloader.
37  virtual void DoStartDownload(const GURL& url) OVERRIDE;
38
39  // Overrides for URLFetcherDelegate.
40  virtual void OnURLFetchComplete(const net::URLFetcher* source) OVERRIDE;
41  virtual void OnURLFetchDownloadProgress(const net::URLFetcher* source,
42                                          int64_t current,
43                                          int64_t total) OVERRIDE;
44  scoped_ptr<net::URLFetcher> url_fetcher_;
45  net::URLRequestContextGetter* context_getter_;
46  scoped_refptr<base::SequencedTaskRunner> task_runner_;
47
48  base::Time download_start_time_;
49
50  int64_t downloaded_bytes_;
51  int64_t total_bytes_;
52
53  base::ThreadChecker thread_checker_;
54
55  DISALLOW_COPY_AND_ASSIGN(UrlFetcherDownloader);
56};
57
58}  // namespace component_updater
59
60#endif  // COMPONENTS_COMPONENT_UPDATER_URL_FETCHER_DOWNLOADER_H_
61