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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 #ifndef DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_CONTEXT_H_ | |
6 #define DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_CONTEXT_H_ | |
7 | |
8 #include "base/macros.h" | |
9 #include "base/memory/scoped_vector.h" | |
10 #include "device/geolocation/geolocation_export.h" | |
11 #include "third_party/WebKit/public/platform/modules/geolocation/geolocation.moj
om.h" | |
12 | |
13 namespace device { | |
14 | |
15 class GeolocationServiceImpl; | |
16 struct Geoposition; | |
17 | |
18 // Provides information to a set of GeolocationServiceImpl instances that are | |
19 // associated with a given context. Notably, allows pausing and resuming | |
20 // geolocation on these instances. | |
21 class DEVICE_GEOLOCATION_EXPORT GeolocationServiceContext { | |
22 public: | |
23 GeolocationServiceContext(); | |
24 virtual ~GeolocationServiceContext(); | |
25 | |
26 // Creates a GeolocationServiceImpl that is weakly bound to |request|. | |
27 // |update_callback| will be called when services send | |
28 // location updates to their clients. | |
29 void CreateService( | |
30 const base::Closure& update_callback, | |
31 mojo::InterfaceRequest<blink::mojom::GeolocationService> request); | |
32 | |
33 // Called when a service has a connection error. After this call, it is no | |
34 // longer safe to access |service|. | |
35 void ServiceHadConnectionError(GeolocationServiceImpl* service); | |
36 | |
37 // Pauses and resumes geolocation. Resuming when nothing is paused is a | |
38 // no-op. If a service is added while geolocation is paused, that service | |
39 // will not get geolocation updates until geolocation is resumed. | |
40 void PauseUpdates(); | |
41 void ResumeUpdates(); | |
42 | |
43 // Returns whether geolocation updates are currently paused. | |
44 bool paused() { return paused_; } | |
45 | |
46 // Enables geolocation override. This method can be used to trigger possible | |
47 // location-specific behavior in a particular context. | |
48 void SetOverride(std::unique_ptr<Geoposition> geoposition); | |
49 | |
50 // Disables geolocation override. | |
51 void ClearOverride(); | |
52 | |
53 private: | |
54 ScopedVector<GeolocationServiceImpl> services_; | |
55 bool paused_; | |
56 | |
57 std::unique_ptr<Geoposition> geoposition_override_; | |
58 | |
59 DISALLOW_COPY_AND_ASSIGN(GeolocationServiceContext); | |
60 }; | |
61 | |
62 } // namespace device | |
63 | |
64 #endif // DEVICE_GEOLOCATION_GEOLOCATION_SERVICE_CONTEXT_H_ | |
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