OLD | NEW |
(Empty) | |
| 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_WIFI_DATA_PROVIDER_COMMON_H_ |
| 6 #define CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_COMMON_H_ |
| 7 |
| 8 #include <assert.h> |
| 9 #include <stdint.h> |
| 10 |
| 11 #include <memory> |
| 12 |
| 13 #include "base/logging.h" |
| 14 #include "base/macros.h" |
| 15 #include "base/memory/weak_ptr.h" |
| 16 #include "base/strings/string16.h" |
| 17 #include "content/browser/geolocation/wifi_data_provider.h" |
| 18 #include "content/browser/geolocation/wifi_polling_policy.h" |
| 19 #include "content/common/content_export.h" |
| 20 |
| 21 namespace content { |
| 22 |
| 23 // Converts a MAC address stored as an array of uint8_t to a string. |
| 24 base::string16 MacAddressAsString16(const uint8_t mac_as_int[6]); |
| 25 |
| 26 // Base class to promote code sharing between platform specific wifi data |
| 27 // providers. It's optional for specific platforms to derive this, but if they |
| 28 // do polling behavior is taken care of by this base class, and all the platform |
| 29 // need do is provide the underlying WLAN access API and polling policy. |
| 30 // Also designed this way for ease of testing the cross-platform behavior. |
| 31 class CONTENT_EXPORT WifiDataProviderCommon : public WifiDataProvider { |
| 32 public: |
| 33 // Interface to abstract the low level data OS library call, and to allow |
| 34 // mocking (hence public). |
| 35 class WlanApiInterface { |
| 36 public: |
| 37 virtual ~WlanApiInterface() {} |
| 38 // Gets wifi data for all visible access points. |
| 39 virtual bool GetAccessPointData(WifiData::AccessPointDataSet* data) = 0; |
| 40 }; |
| 41 |
| 42 WifiDataProviderCommon(); |
| 43 |
| 44 // WifiDataProvider implementation |
| 45 void StartDataProvider() override; |
| 46 void StopDataProvider() override; |
| 47 bool GetData(WifiData* data) override; |
| 48 |
| 49 protected: |
| 50 ~WifiDataProviderCommon() override; |
| 51 |
| 52 // Returns ownership. |
| 53 virtual WlanApiInterface* NewWlanApi() = 0; |
| 54 |
| 55 // Returns ownership. |
| 56 virtual WifiPollingPolicy* NewPollingPolicy() = 0; |
| 57 |
| 58 private: |
| 59 // Runs a scan. Calls the callbacks if new data is found. |
| 60 void DoWifiScanTask(); |
| 61 |
| 62 // Will schedule a scan; i.e. enqueue DoWifiScanTask deferred task. |
| 63 void ScheduleNextScan(int interval); |
| 64 |
| 65 WifiData wifi_data_; |
| 66 |
| 67 // Whether we've successfully completed a scan for WiFi data. |
| 68 bool is_first_scan_complete_; |
| 69 |
| 70 // Underlying OS wifi API. |
| 71 std::unique_ptr<WlanApiInterface> wlan_api_; |
| 72 |
| 73 // Controls the polling update interval. |
| 74 std::unique_ptr<WifiPollingPolicy> polling_policy_; |
| 75 |
| 76 // Holder for delayed tasks; takes care of cleanup. |
| 77 base::WeakPtrFactory<WifiDataProviderCommon> weak_factory_; |
| 78 |
| 79 DISALLOW_COPY_AND_ASSIGN(WifiDataProviderCommon); |
| 80 }; |
| 81 |
| 82 } // namespace content |
| 83 |
| 84 #endif // CONTENT_BROWSER_GEOLOCATION_WIFI_DATA_PROVIDER_COMMON_H_ |
OLD | NEW |