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| 1 // Copyright (c) 2010 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 GPS providers that run on linux. Currently, just uses | |
| 6 // the libgps (gpsd) API. Public for testing only - for normal usage this | |
| 7 // header should not be required, as location_provider.h declares the needed | |
| 8 // factory function. | |
| 9 | |
| 10 #ifndef CONTENT_BROWSER_GEOLOCATION_GPS_LOCATION_PROVIDER_LINUX_H_ | |
| 11 #define CONTENT_BROWSER_GEOLOCATION_GPS_LOCATION_PROVIDER_LINUX_H_ | |
| 12 #pragma once | |
| 13 | |
| 14 #include "base/scoped_ptr.h" | |
| 15 #include "base/task.h" | |
| 16 #include "chrome/common/geoposition.h" | |
| 17 #include "content/browser/geolocation/location_provider.h" | |
| 18 | |
| 19 class LibGps; | |
| 20 | |
| 21 // Location provider for Linux, that uses libgps/gpsd to obtain position fixes. | |
| 22 // TODO(joth): Currently this runs entirely in the client thread (i.e. Chrome's | |
| 23 // IO thread). As the older libgps API is not designed to support polling, | |
| 24 // there's a chance it could block, so better move this into its own worker | |
| 25 // thread. | |
| 26 class GpsLocationProviderLinux : public LocationProviderBase { | |
| 27 public: | |
| 28 typedef LibGps* (*LibGpsFactory)(); | |
| 29 // |factory| will be used to create the gpsd client library wrapper. (Note | |
| 30 // NewSystemLocationProvider() will use the default factory). | |
| 31 explicit GpsLocationProviderLinux(LibGpsFactory libgps_factory); | |
| 32 virtual ~GpsLocationProviderLinux(); | |
| 33 | |
| 34 // LocationProvider | |
| 35 virtual bool StartProvider(bool high_accuracy); | |
| 36 virtual void StopProvider(); | |
| 37 virtual void GetPosition(Geoposition* position); | |
| 38 virtual void UpdatePosition(); | |
| 39 virtual void OnPermissionGranted(const GURL& requesting_frame); | |
| 40 | |
| 41 private: | |
| 42 // Task which run in the child thread. | |
| 43 void DoGpsPollTask(); | |
| 44 | |
| 45 // Will schedule a poll; i.e. enqueue DoGpsPollTask deferred task. | |
| 46 void ScheduleNextGpsPoll(int interval); | |
| 47 | |
| 48 const LibGpsFactory libgps_factory_; | |
| 49 scoped_ptr<LibGps> gps_; | |
| 50 Geoposition position_; | |
| 51 | |
| 52 // Holder for the tasks which run on the thread; takes care of cleanup. | |
| 53 ScopedRunnableMethodFactory<GpsLocationProviderLinux> task_factory_; | |
| 54 }; | |
| 55 | |
| 56 #endif // CONTENT_BROWSER_GEOLOCATION_GPS_LOCATION_PROVIDER_LINUX_H_ | |
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Chromium Code Reviews
Issue 6597044:
Revert 76228 - Move core pieces of geolocation from chrome to content.This is... (Closed)
Base URL: svn://svn.chromium.org/chrome/trunk/src/