| // Copyright (c) 2013 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef CHROME_BROWSER_EXTENSIONS_API_LOCATION_LOCATION_MANAGER_H_ |
| #define CHROME_BROWSER_EXTENSIONS_API_LOCATION_LOCATION_MANAGER_H_ |
| |
| #include <string> |
| |
| #include "base/scoped_observer.h" |
| #include "extensions/browser/browser_context_keyed_api_factory.h" |
| #include "extensions/browser/extension_registry_observer.h" |
| |
| namespace content { |
| class BrowserContext; |
| struct Geoposition; |
| } // namespace content |
| |
| namespace extensions { |
| class ExtensionRegistry; |
| class LocationManager; |
| class LocationRequest; |
| |
| namespace api { |
| namespace location { |
| |
| struct Coordinates; |
| |
| } // namespace location |
| } // namespace api |
| |
| // BrowserContext's manager of all location watch requests created by |
| // chrome.location API. Lives in the UI thread. |
| class LocationManager : public BrowserContextKeyedAPI, |
| public ExtensionRegistryObserver { |
| public: |
| explicit LocationManager(content::BrowserContext* context); |
| ~LocationManager() override; |
| |
| // Adds location request for the given extension, and starts the location |
| // tracking. |
| void AddLocationRequest( |
| const std::string& extension_id, |
| const std::string& request_name, |
| const double* distance_update_threshold_meters, |
| const double* time_between_updates_ms); |
| |
| // Cancels and removes the request with the given |name| for the given |
| // extension. |
| void RemoveLocationRequest(const std::string& extension_id, |
| const std::string& name); |
| |
| // BrowserContextKeyedAPI implementation. |
| static BrowserContextKeyedAPIFactory<LocationManager>* GetFactoryInstance(); |
| |
| // Convenience method to get the LocationManager for a context. |
| static LocationManager* Get(content::BrowserContext* context); |
| |
| private: |
| friend class LocationRequest; |
| friend class BrowserContextKeyedAPIFactory<LocationManager>; |
| |
| typedef std::string ExtensionId; |
| typedef scoped_refptr<LocationRequest> LocationRequestPointer; |
| typedef std::multimap<ExtensionId, LocationRequestPointer> LocationRequestMap; |
| typedef LocationRequestMap::iterator LocationRequestIterator; |
| |
| // Converts |position| from GeolocationProvider to the location API |
| // |coordinates|. |
| static void GeopositionToApiCoordinates( |
| const content::Geoposition& position, |
| api::location::Coordinates* coordinates); |
| |
| // Sends a location update to the extension. |
| void SendLocationUpdate(const std::string& extension_id, |
| const std::string& request_name, |
| const content::Geoposition& position); |
| |
| // ExtensionRegistryObserver implementation. |
| void OnExtensionLoaded(content::BrowserContext* browser_context, |
| const Extension* extension) override; |
| void OnExtensionUnloaded(content::BrowserContext* browser_context, |
| const Extension* extension, |
| UnloadedExtensionInfo::Reason reason) override; |
| |
| // BrowserContextKeyedAPI implementation. |
| static const char* service_name() { return "LocationManager"; } |
| |
| content::BrowserContext* const browser_context_; |
| |
| // A map of our pending location requests, per extension. |
| // Invariant: None of the LocationRequestLists are empty. |
| LocationRequestMap location_requests_; |
| |
| ScopedObserver<ExtensionRegistry, ExtensionRegistryObserver> |
| extension_registry_observer_; |
| |
| DISALLOW_COPY_AND_ASSIGN(LocationManager); |
| }; |
| |
| } // namespace extensions |
| |
| #endif // CHROME_BROWSER_EXTENSIONS_API_LOCATION_LOCATION_MANAGER_H_ |