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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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