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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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