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1 // Copyright (c) 2012 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 CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ | |
6 #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ | |
7 | |
8 #include <memory> | |
9 | |
10 #include "base/callback.h" | |
11 #include "base/macros.h" | |
12 #include "base/memory/ref_counted.h" | |
13 #include "base/strings/string16.h" | |
14 #include "content/browser/geolocation/wifi_data_provider.h" | |
15 #include "content/common/content_export.h" | |
16 #include "net/url_request/url_fetcher_delegate.h" | |
17 #include "url/gurl.h" | |
18 | |
19 namespace net { | |
20 class URLFetcher; | |
21 class URLRequestContextGetter; | |
22 } | |
23 | |
24 namespace content { | |
25 struct Geoposition; | |
26 | |
27 // Takes wifi data and sends it to a server to get a position fix. | |
28 // It performs formatting of the request and interpretation of the response. | |
29 class NetworkLocationRequest : private net::URLFetcherDelegate { | |
30 public: | |
31 // ID passed to URLFetcher::Create(). Used for testing. | |
32 CONTENT_EXPORT static int url_fetcher_id_for_tests; | |
33 | |
34 // Called when a new geo position is available. The second argument indicates | |
35 // whether there was a server error or not. It is true when there was a | |
36 // server or network error - either no response or a 500 error code. | |
37 typedef base::Callback<void(const Geoposition& /* position */, | |
38 bool /* server_error */, | |
39 const base::string16& /* access_token */, | |
40 const WifiData& /* wifi_data */)> | |
41 LocationResponseCallback; | |
42 | |
43 // |url| is the server address to which the request wil be sent. | |
44 NetworkLocationRequest( | |
45 const scoped_refptr<net::URLRequestContextGetter>& context, | |
46 const GURL& url, | |
47 LocationResponseCallback callback); | |
48 ~NetworkLocationRequest() override; | |
49 | |
50 // Makes a new request. Returns true if the new request was successfully | |
51 // started. In all cases, any currently pending request will be canceled. | |
52 bool MakeRequest(const base::string16& access_token, | |
53 const WifiData& wifi_data, | |
54 const base::Time& wifi_timestamp); | |
55 | |
56 bool is_request_pending() const { return url_fetcher_ != NULL; } | |
57 const GURL& url() const { return url_; } | |
58 | |
59 private: | |
60 // net::URLFetcherDelegate | |
61 void OnURLFetchComplete(const net::URLFetcher* source) override; | |
62 | |
63 const scoped_refptr<net::URLRequestContextGetter> url_context_; | |
64 const LocationResponseCallback location_response_callback_; | |
65 const GURL url_; | |
66 std::unique_ptr<net::URLFetcher> url_fetcher_; | |
67 | |
68 // Keep a copy of the data sent in the request, so we can refer back to it | |
69 // when the response arrives. | |
70 WifiData wifi_data_; | |
71 base::Time wifi_timestamp_; | |
72 | |
73 // The start time for the request. | |
74 base::TimeTicks request_start_time_; | |
75 | |
76 DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest); | |
77 }; | |
78 | |
79 } // namespace content | |
80 | |
81 #endif // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_ | |
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