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Side by Side Diff: content/browser/geolocation/location_arbitrator.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_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/location_provider.h" 12 #include "content/browser/geolocation/location_provider.h"
13 #include "content/browser/geolocation/geolocation_observer.h" 13 #include "content/browser/geolocation/geolocation_observer.h"
14 #include "content/common/content_export.h" 14 #include "content/common/content_export.h"
15 #include "content/common/geoposition.h"
16 #include "content/public/browser/access_token_store.h" 15 #include "content/public/browser/access_token_store.h"
16 #include "content/public/common/geoposition.h"
17 #include "net/url_request/url_request_context_getter.h" 17 #include "net/url_request/url_request_context_getter.h"
18 18
19 class GeolocationArbitratorDependencyFactory; 19 class GeolocationArbitratorDependencyFactory;
20 class LocationProviderBase; 20 class LocationProviderBase;
21 21
22 namespace content { 22 namespace content {
23 class AccessTokenStore; 23 class AccessTokenStore;
24 } 24 }
25 25
26 namespace net { 26 namespace net {
27 class URLRequestContextGetter; 27 class URLRequestContextGetter;
28 } 28 }
29 29
30 struct Geoposition;
31
32 // This class is responsible for handling updates from multiple underlying 30 // This class is responsible for handling updates from multiple underlying
33 // providers and resolving them to a single 'best' location fix at any given 31 // providers and resolving them to a single 'best' location fix at any given
34 // moment. 32 // moment.
35 class CONTENT_EXPORT GeolocationArbitrator 33 class CONTENT_EXPORT GeolocationArbitrator
36 : public LocationProviderBase::ListenerInterface { 34 : public LocationProviderBase::ListenerInterface {
37 public: 35 public:
38 // Number of milliseconds newer a location provider has to be that it's worth 36 // Number of milliseconds newer a location provider has to be that it's worth
39 // switching to this location provider on the basis of it being fresher 37 // switching to this location provider on the basis of it being fresher
40 // (regardles of relative accuracy). Public for tests. 38 // (regardles of relative accuracy). Public for tests.
41 static const int64 kFixStaleTimeoutMilliseconds; 39 static const int64 kFixStaleTimeoutMilliseconds;
(...skipping 35 matching lines...) Expand 10 before | Expand all | Expand 10 after
77 // Takes ownership of |provider| on entry; it will either be added to 75 // Takes ownership of |provider| on entry; it will either be added to
78 // |providers_| or deleted on error (e.g. it fails to start). 76 // |providers_| or deleted on error (e.g. it fails to start).
79 void RegisterProvider(LocationProviderBase* provider); 77 void RegisterProvider(LocationProviderBase* provider);
80 void OnAccessTokenStoresLoaded( 78 void OnAccessTokenStoresLoaded(
81 content::AccessTokenStore::AccessTokenSet access_token_store, 79 content::AccessTokenStore::AccessTokenSet access_token_store,
82 net::URLRequestContextGetter* context_getter); 80 net::URLRequestContextGetter* context_getter);
83 void DoStartProviders(); 81 void DoStartProviders();
84 // Returns true if |new_position| is an improvement over |old_position|. 82 // Returns true if |new_position| is an improvement over |old_position|.
85 // Set |from_same_provider| to true if both the positions came from the same 83 // Set |from_same_provider| to true if both the positions came from the same
86 // provider. 84 // provider.
87 bool IsNewPositionBetter(const Geoposition& old_position, 85 bool IsNewPositionBetter(const content::Geoposition& old_position,
88 const Geoposition& new_position, 86 const content::Geoposition& new_position,
89 bool from_same_provider) const; 87 bool from_same_provider) const;
90 88
91 scoped_refptr<GeolocationArbitratorDependencyFactory> dependency_factory_; 89 scoped_refptr<GeolocationArbitratorDependencyFactory> dependency_factory_;
92 scoped_refptr<content::AccessTokenStore> access_token_store_; 90 scoped_refptr<content::AccessTokenStore> access_token_store_;
93 GetTimeNow get_time_now_; 91 GetTimeNow get_time_now_;
94 GeolocationObserver* observer_; 92 GeolocationObserver* observer_;
95 ScopedVector<LocationProviderBase> providers_; 93 ScopedVector<LocationProviderBase> providers_;
96 GeolocationObserverOptions current_provider_options_; 94 GeolocationObserverOptions current_provider_options_;
97 // The provider which supplied the current |position_| 95 // The provider which supplied the current |position_|
98 const LocationProviderBase* position_provider_; 96 const LocationProviderBase* position_provider_;
99 bool is_permission_granted_; 97 bool is_permission_granted_;
100 // The current best estimate of our position. 98 // The current best estimate of our position.
101 Geoposition position_; 99 content::Geoposition position_;
102 100
103 DISALLOW_COPY_AND_ASSIGN(GeolocationArbitrator); 101 DISALLOW_COPY_AND_ASSIGN(GeolocationArbitrator);
104 }; 102 };
105 103
106 #endif // CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_ 104 #endif // CONTENT_BROWSER_GEOLOCATION_LOCATION_ARBITRATOR_H_
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