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Side by Side Diff: content/browser/geolocation/network_location_provider.h

Issue 10316007: Make the Geoposition helper class public (Closed) Base URL: http://git.chromium.org/chromium/src.git@master
Patch Set: Fix forward-declaration of struct as class. Created 8 years, 7 months ago
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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. 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 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_ 5 #ifndef CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
6 #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_ 6 #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
7 #pragma once 7 #pragma once
8 8
9 #include <list> 9 #include <list>
10 10
11 #include "base/basictypes.h" 11 #include "base/basictypes.h"
12 #include "base/memory/ref_counted.h" 12 #include "base/memory/ref_counted.h"
13 #include "base/memory/scoped_ptr.h" 13 #include "base/memory/scoped_ptr.h"
14 #include "base/memory/weak_ptr.h" 14 #include "base/memory/weak_ptr.h"
15 #include "base/string16.h" 15 #include "base/string16.h"
16 #include "base/threading/thread.h" 16 #include "base/threading/thread.h"
17 #include "content/browser/geolocation/device_data_provider.h" 17 #include "content/browser/geolocation/device_data_provider.h"
18 #include "content/browser/geolocation/location_provider.h" 18 #include "content/browser/geolocation/location_provider.h"
19 #include "content/browser/geolocation/network_location_request.h" 19 #include "content/browser/geolocation/network_location_request.h"
20 #include "content/common/content_export.h" 20 #include "content/common/content_export.h"
21 #include "content/common/geoposition.h" 21 #include "content/public/common/geoposition.h"
22 22
23 namespace content { 23 namespace content {
24 class AccessTokenStore; 24 class AccessTokenStore;
25 } 25 }
26 26
27 class NetworkLocationProvider 27 class NetworkLocationProvider
28 : public LocationProviderBase, 28 : public LocationProviderBase,
29 public RadioDataProvider::ListenerInterface, 29 public RadioDataProvider::ListenerInterface,
30 public WifiDataProvider::ListenerInterface, 30 public WifiDataProvider::ListenerInterface,
31 public NetworkLocationRequest::ListenerInterface { 31 public NetworkLocationRequest::ListenerInterface {
32 public: 32 public:
33 // Cache of recently resolved locations. Public for tests. 33 // Cache of recently resolved locations. Public for tests.
34 class CONTENT_EXPORT PositionCache { 34 class CONTENT_EXPORT PositionCache {
35 public: 35 public:
36 // The maximum size of the cache of positions for previously requested 36 // The maximum size of the cache of positions for previously requested
37 // device data. 37 // device data.
38 static const size_t kMaximumSize; 38 static const size_t kMaximumSize;
39 39
40 PositionCache(); 40 PositionCache();
41 ~PositionCache(); 41 ~PositionCache();
42 42
43 // Caches the current position response for the current set of cell ID and 43 // Caches the current position response for the current set of cell ID and
44 // WiFi data. In the case of the cache exceeding kMaximumSize this will 44 // WiFi data. In the case of the cache exceeding kMaximumSize this will
45 // evict old entries in FIFO orderer of being added. 45 // evict old entries in FIFO orderer of being added.
46 // Returns true on success, false otherwise. 46 // Returns true on success, false otherwise.
47 bool CachePosition(const WifiData& wifi_data, 47 bool CachePosition(const WifiData& wifi_data,
48 const Geoposition& position); 48 const content::Geoposition& position);
49 49
50 // Searches for a cached position response for the current set of device 50 // Searches for a cached position response for the current set of device
51 // data. Returns NULL if the position is not in the cache, or the cached 51 // data. Returns NULL if the position is not in the cache, or the cached
52 // position if available. Ownership remains with the cache. 52 // position if available. Ownership remains with the cache.
53 const Geoposition* FindPosition(const WifiData& wifi_data); 53 const content::Geoposition* FindPosition(const WifiData& wifi_data);
54 54
55 private: 55 private:
56 // Makes the key for the map of cached positions, using a set of 56 // Makes the key for the map of cached positions, using a set of
57 // device data. Returns true if a good key was generated, false otherwise. 57 // device data. Returns true if a good key was generated, false otherwise.
58 static bool MakeKey(const WifiData& wifi_data, 58 static bool MakeKey(const WifiData& wifi_data,
59 string16* key); 59 string16* key);
60 60
61 // The cache of positions. This is stored as a map keyed on a string that 61 // The cache of positions. This is stored as a map keyed on a string that
62 // represents a set of device data, and a list to provide 62 // represents a set of device data, and a list to provide
63 // least-recently-added eviction. 63 // least-recently-added eviction.
64 typedef std::map<string16, Geoposition> CacheMap; 64 typedef std::map<string16, content::Geoposition> CacheMap;
65 CacheMap cache_; 65 CacheMap cache_;
66 typedef std::list<CacheMap::iterator> CacheAgeList; 66 typedef std::list<CacheMap::iterator> CacheAgeList;
67 CacheAgeList cache_age_list_; // Oldest first. 67 CacheAgeList cache_age_list_; // Oldest first.
68 }; 68 };
69 69
70 NetworkLocationProvider(content::AccessTokenStore* access_token_store, 70 NetworkLocationProvider(content::AccessTokenStore* access_token_store,
71 net::URLRequestContextGetter* context, 71 net::URLRequestContextGetter* context,
72 const GURL& url, 72 const GURL& url,
73 const string16& access_token); 73 const string16& access_token);
74 virtual ~NetworkLocationProvider(); 74 virtual ~NetworkLocationProvider();
75 75
76 // LocationProviderBase implementation 76 // LocationProviderBase implementation
77 virtual bool StartProvider(bool high_accuracy) OVERRIDE; 77 virtual bool StartProvider(bool high_accuracy) OVERRIDE;
78 virtual void StopProvider() OVERRIDE; 78 virtual void StopProvider() OVERRIDE;
79 virtual void GetPosition(Geoposition *position) OVERRIDE; 79 virtual void GetPosition(content::Geoposition *position) OVERRIDE;
80 virtual void UpdatePosition() OVERRIDE; 80 virtual void UpdatePosition() OVERRIDE;
81 virtual void OnPermissionGranted() OVERRIDE; 81 virtual void OnPermissionGranted() OVERRIDE;
82 82
83 private: 83 private:
84 // Satisfies a position request from cache or network. 84 // Satisfies a position request from cache or network.
85 void RequestPosition(); 85 void RequestPosition();
86 86
87 // Internal helper used by DeviceDataUpdateAvailable 87 // Internal helper used by DeviceDataUpdateAvailable
88 void OnDeviceDataUpdated(); 88 void OnDeviceDataUpdated();
89 89
90 bool IsStarted() const; 90 bool IsStarted() const;
91 91
92 // DeviceDataProvider::ListenerInterface implementation. 92 // DeviceDataProvider::ListenerInterface implementation.
93 virtual void DeviceDataUpdateAvailable(RadioDataProvider* provider) OVERRIDE; 93 virtual void DeviceDataUpdateAvailable(RadioDataProvider* provider) OVERRIDE;
94 virtual void DeviceDataUpdateAvailable(WifiDataProvider* provider) OVERRIDE; 94 virtual void DeviceDataUpdateAvailable(WifiDataProvider* provider) OVERRIDE;
95 95
96 // NetworkLocationRequest::ListenerInterface implementation. 96 // NetworkLocationRequest::ListenerInterface implementation.
97 virtual void LocationResponseAvailable(const Geoposition& position, 97 virtual void LocationResponseAvailable(const content::Geoposition& position,
98 bool server_error, 98 bool server_error,
99 const string16& access_token, 99 const string16& access_token,
100 const RadioData& radio_data, 100 const RadioData& radio_data,
101 const WifiData& wifi_data) OVERRIDE; 101 const WifiData& wifi_data) OVERRIDE;
102 102
103 scoped_refptr<content::AccessTokenStore> access_token_store_; 103 scoped_refptr<content::AccessTokenStore> access_token_store_;
104 104
105 // The device data providers, acquired via global factories. 105 // The device data providers, acquired via global factories.
106 RadioDataProvider* radio_data_provider_; 106 RadioDataProvider* radio_data_provider_;
107 WifiDataProvider* wifi_data_provider_; 107 WifiDataProvider* wifi_data_provider_;
108 108
109 // The radio and wifi data, flags to indicate if each data set is complete. 109 // The radio and wifi data, flags to indicate if each data set is complete.
110 RadioData radio_data_; 110 RadioData radio_data_;
111 WifiData wifi_data_; 111 WifiData wifi_data_;
112 bool is_radio_data_complete_; 112 bool is_radio_data_complete_;
113 bool is_wifi_data_complete_; 113 bool is_wifi_data_complete_;
114 114
115 // The timestamp for the latest device data update. 115 // The timestamp for the latest device data update.
116 base::Time device_data_updated_timestamp_; 116 base::Time device_data_updated_timestamp_;
117 117
118 // Cached value loaded from the token store or set by a previous server 118 // Cached value loaded from the token store or set by a previous server
119 // response, and sent in each subsequent network request. 119 // response, and sent in each subsequent network request.
120 string16 access_token_; 120 string16 access_token_;
121 121
122 // The current best position estimate. 122 // The current best position estimate.
123 Geoposition position_; 123 content::Geoposition position_;
124 124
125 // Whether permission has been granted for the provider to operate. 125 // Whether permission has been granted for the provider to operate.
126 bool is_permission_granted_; 126 bool is_permission_granted_;
127 127
128 bool is_new_data_available_; 128 bool is_new_data_available_;
129 129
130 // The network location request object, and the url it uses. 130 // The network location request object, and the url it uses.
131 scoped_ptr<NetworkLocationRequest> request_; 131 scoped_ptr<NetworkLocationRequest> request_;
132 132
133 base::WeakPtrFactory<NetworkLocationProvider> weak_factory_; 133 base::WeakPtrFactory<NetworkLocationProvider> weak_factory_;
134 // The cache of positions. 134 // The cache of positions.
135 scoped_ptr<PositionCache> position_cache_; 135 scoped_ptr<PositionCache> position_cache_;
136 136
137 DISALLOW_COPY_AND_ASSIGN(NetworkLocationProvider); 137 DISALLOW_COPY_AND_ASSIGN(NetworkLocationProvider);
138 }; 138 };
139 139
140 #endif // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_ 140 #endif // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_PROVIDER_H_
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