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| 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 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_LOCATION_ARBITRATOR_H_ | 5 #ifndef CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ |
| 6 #define CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ | 6 #define CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ |
| 7 #pragma once | 7 #pragma once |
| 8 | 8 |
| 9 #include "base/memory/scoped_vector.h" | 9 #include "base/memory/scoped_vector.h" |
| 10 #include "base/string16.h" | 10 #include "base/string16.h" |
| 11 #include "base/time.h" | 11 #include "base/time.h" |
| 12 #include "content/browser/geolocation/access_token_store.h" | |
| 13 #include "content/browser/geolocation/location_provider.h" | 12 #include "content/browser/geolocation/location_provider.h" |
| 14 #include "content/browser/geolocation/geolocation_observer.h" | 13 #include "content/browser/geolocation/geolocation_observer.h" |
| 15 #include "content/common/content_export.h" | 14 #include "content/common/content_export.h" |
| 16 #include "content/common/geoposition.h" | 15 #include "content/common/geoposition.h" |
| 16 #include "content/public/browser/access_token_store.h" |
| 17 #include "googleurl/src/gurl.h" | 17 #include "googleurl/src/gurl.h" |
| 18 #include "net/url_request/url_request_context_getter.h" | 18 #include "net/url_request/url_request_context_getter.h" |
| 19 | 19 |
| 20 class AccessTokenStore; | |
| 21 class GeolocationArbitratorDependencyFactory; | 20 class GeolocationArbitratorDependencyFactory; |
| 22 class GURL; | 21 class GURL; |
| 23 class LocationProviderBase; | 22 class LocationProviderBase; |
| 24 | 23 |
| 24 namespace content { |
| 25 class AccessTokenStore; |
| 26 } |
| 27 |
| 25 namespace net { | 28 namespace net { |
| 26 class URLRequestContextGetter; | 29 class URLRequestContextGetter; |
| 27 } | 30 } |
| 28 | 31 |
| 29 struct Geoposition; | 32 struct Geoposition; |
| 30 | 33 |
| 31 // This class is responsible for handling updates from multiple underlying | 34 // This class is responsible for handling updates from multiple underlying |
| 32 // providers and resolving them to a single 'best' location fix at any given | 35 // providers and resolving them to a single 'best' location fix at any given |
| 33 // moment. | 36 // moment. |
| 34 class CONTENT_EXPORT GeolocationArbitrator | 37 class CONTENT_EXPORT GeolocationArbitrator |
| (...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 70 virtual void LocationUpdateAvailable(LocationProviderBase* provider) OVERRIDE; | 73 virtual void LocationUpdateAvailable(LocationProviderBase* provider) OVERRIDE; |
| 71 | 74 |
| 72 private: | 75 private: |
| 73 GeolocationArbitrator( | 76 GeolocationArbitrator( |
| 74 GeolocationArbitratorDependencyFactory* dependency_factory, | 77 GeolocationArbitratorDependencyFactory* dependency_factory, |
| 75 GeolocationObserver* observer); | 78 GeolocationObserver* observer); |
| 76 // Takes ownership of |provider| on entry; it will either be added to | 79 // Takes ownership of |provider| on entry; it will either be added to |
| 77 // |providers_| or deleted on error (e.g. it fails to start). | 80 // |providers_| or deleted on error (e.g. it fails to start). |
| 78 void RegisterProvider(LocationProviderBase* provider); | 81 void RegisterProvider(LocationProviderBase* provider); |
| 79 void OnAccessTokenStoresLoaded( | 82 void OnAccessTokenStoresLoaded( |
| 80 AccessTokenStore::AccessTokenSet access_token_store, | 83 content::AccessTokenStore::AccessTokenSet access_token_store, |
| 81 net::URLRequestContextGetter* context_getter); | 84 net::URLRequestContextGetter* context_getter); |
| 82 void DoStartProviders(); | 85 void DoStartProviders(); |
| 83 // Returns true if |new_position| is an improvement over |old_position|. | 86 // Returns true if |new_position| is an improvement over |old_position|. |
| 84 // Set |from_same_provider| to true if both the positions came from the same | 87 // Set |from_same_provider| to true if both the positions came from the same |
| 85 // provider. | 88 // provider. |
| 86 bool IsNewPositionBetter(const Geoposition& old_position, | 89 bool IsNewPositionBetter(const Geoposition& old_position, |
| 87 const Geoposition& new_position, | 90 const Geoposition& new_position, |
| 88 bool from_same_provider) const; | 91 bool from_same_provider) const; |
| 89 | 92 |
| 90 scoped_refptr<GeolocationArbitratorDependencyFactory> dependency_factory_; | 93 scoped_refptr<GeolocationArbitratorDependencyFactory> dependency_factory_; |
| 91 scoped_refptr<AccessTokenStore> access_token_store_; | 94 scoped_refptr<content::AccessTokenStore> access_token_store_; |
| 92 GetTimeNow get_time_now_; | 95 GetTimeNow get_time_now_; |
| 93 GeolocationObserver* observer_; | 96 GeolocationObserver* observer_; |
| 94 ScopedVector<LocationProviderBase> providers_; | 97 ScopedVector<LocationProviderBase> providers_; |
| 95 GeolocationObserverOptions current_provider_options_; | 98 GeolocationObserverOptions current_provider_options_; |
| 96 // The provider which supplied the current |position_| | 99 // The provider which supplied the current |position_| |
| 97 const LocationProviderBase* position_provider_; | 100 const LocationProviderBase* position_provider_; |
| 98 GURL most_recent_authorized_frame_; | 101 GURL most_recent_authorized_frame_; |
| 99 // The current best estimate of our position. | 102 // The current best estimate of our position. |
| 100 Geoposition position_; | 103 Geoposition position_; |
| 101 | 104 |
| 102 DISALLOW_COPY_AND_ASSIGN(GeolocationArbitrator); | 105 DISALLOW_COPY_AND_ASSIGN(GeolocationArbitrator); |
| 103 }; | 106 }; |
| 104 | 107 |
| 105 #endif // CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ | 108 #endif // CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ |
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