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 // This file declares a CoreLocation data provider class that allows the 6 // CoreLocation framework to run on the UI thread, since the Geolocation API's 7 // providers all live on the IO thread 8 9 #ifndef CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_ 10 #define CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_ 11 12 #include "base/mac/scoped_nsobject.h" 13 #include "base/memory/ref_counted.h" 14 #include "content/public/browser/browser_thread.h" 15 #include "content/public/common/geoposition.h" 16 17 #import <Foundation/Foundation.h> 18 19 @class CoreLocationWrapperMac; 20 21 namespace content { 22 class CoreLocationProviderMac; 23 24 // Data provider class that allows CoreLocation to run in Chrome's UI thread 25 // while existing on any of Chrome's threads (in this case the IO thread) 26 class CoreLocationDataProviderMac 27 : public base::RefCountedThreadSafe<CoreLocationDataProviderMac> { 28 public: 29 CoreLocationDataProviderMac(); 30 31 bool StartUpdating(CoreLocationProviderMac* provider); 32 void StopUpdating(); 33 34 void UpdatePosition(Geoposition* position); 35 36 private: 37 friend class base::RefCountedThreadSafe<CoreLocationDataProviderMac>; 38 ~CoreLocationDataProviderMac(); 39 40 // These must execute in BrowserThread::UI 41 void StartUpdatingTask(); 42 void StopUpdatingTask(); 43 // This must execute in the origin thread (IO thread) 44 void PositionUpdated(Geoposition position); 45 46 // The wrapper class that supplies this class with position data 47 base::scoped_nsobject<CoreLocationWrapperMac> wrapper_; 48 // The LocationProvider class that should receive position data 49 CoreLocationProviderMac* provider_; 50 }; 51 52 } // namespace content 53 54 #endif // CONTENT_BROWSER_GEOLOCATION_CORE_LOCATION_DATA_PROVIDER_H_ 55
