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| 1 // Copyright 2014 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 #include <memory> |
| 6 |
| 7 #include "base/macros.h" |
| 8 #include "content/browser/geolocation/geolocation_provider_impl.h" |
| 9 #include "mojo/public/cpp/bindings/binding.h" |
| 10 #include "third_party/WebKit/public/platform/modules/geolocation/geolocation.moj
om.h" |
| 11 |
| 12 #ifndef CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_ |
| 13 #define CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_ |
| 14 |
| 15 namespace content { |
| 16 |
| 17 class GeolocationProvider; |
| 18 class GeolocationServiceContext; |
| 19 |
| 20 // Implements the GeolocationService Mojo interface. |
| 21 class GeolocationServiceImpl : public blink::mojom::GeolocationService { |
| 22 public: |
| 23 // |context| must outlive this object. |update_callback| will be called when |
| 24 // location updates are sent, allowing the client to know when the service |
| 25 // is being used. |
| 26 GeolocationServiceImpl( |
| 27 mojo::InterfaceRequest<blink::mojom::GeolocationService> request, |
| 28 GeolocationServiceContext* context, |
| 29 const base::Closure& update_callback); |
| 30 ~GeolocationServiceImpl() override; |
| 31 |
| 32 // Starts listening for updates. |
| 33 void StartListeningForUpdates(); |
| 34 |
| 35 // Pauses and resumes sending updates to the client of this instance. |
| 36 void PauseUpdates(); |
| 37 void ResumeUpdates(); |
| 38 |
| 39 // Enables and disables geolocation override. |
| 40 void SetOverride(const Geoposition& position); |
| 41 void ClearOverride(); |
| 42 |
| 43 private: |
| 44 // blink::mojom::GeolocationService: |
| 45 void SetHighAccuracy(bool high_accuracy) override; |
| 46 void QueryNextPosition(const QueryNextPositionCallback& callback) override; |
| 47 |
| 48 void OnConnectionError(); |
| 49 |
| 50 void OnLocationUpdate(const Geoposition& position); |
| 51 void ReportCurrentPosition(); |
| 52 |
| 53 // The binding between this object and the other end of the pipe. |
| 54 mojo::Binding<blink::mojom::GeolocationService> binding_; |
| 55 |
| 56 // Owns this object. |
| 57 GeolocationServiceContext* context_; |
| 58 std::unique_ptr<GeolocationProvider::Subscription> geolocation_subscription_; |
| 59 |
| 60 // Callback that allows the instantiator of this class to be notified on |
| 61 // position updates. |
| 62 base::Closure update_callback_; |
| 63 |
| 64 // The callback passed to QueryNextPosition. |
| 65 QueryNextPositionCallback position_callback_; |
| 66 |
| 67 // Valid iff SetOverride() has been called and ClearOverride() has not |
| 68 // subsequently been called. |
| 69 Geoposition position_override_; |
| 70 |
| 71 blink::mojom::Geoposition current_position_; |
| 72 |
| 73 // Whether this instance is currently observing location updates with high |
| 74 // accuracy. |
| 75 bool high_accuracy_; |
| 76 |
| 77 bool has_position_to_report_; |
| 78 |
| 79 DISALLOW_COPY_AND_ASSIGN(GeolocationServiceImpl); |
| 80 }; |
| 81 |
| 82 } // namespace content |
| 83 |
| 84 #endif // CONTENT_BROWSER_GEOLOCATION_GEOLOCATION_SERVICE_IMPL_H_ |
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