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1 // Copyright 2016 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 BLIMP_CLIENT_CORE_GEOLOCATION_GEOLOCATION_FEATURE_H_ | |
6 #define BLIMP_CLIENT_CORE_GEOLOCATION_GEOLOCATION_FEATURE_H_ | |
7 | |
8 #include <memory> | |
9 #include <string> | |
10 | |
11 #include "blimp/common/proto/geolocation.pb.h" | |
12 #include "blimp/net/blimp_message_processor.h" | |
13 #include "device/geolocation/geoposition.h" | |
14 #include "device/geolocation/location_provider.h" | |
15 | |
16 namespace blimp { | |
17 namespace client { | |
18 | |
19 // Client-side feature handling geolocation messages. | |
20 class GeolocationFeature : public BlimpMessageProcessor { | |
21 public: | |
22 explicit GeolocationFeature( | |
23 std::unique_ptr<device::LocationProvider> location_provider); | |
24 ~GeolocationFeature() override; | |
25 | |
26 // Sets the BlimpMessageProcessor that will be used to send | |
27 // BlimpMessage::GEOLOCATION messages to the engine. | |
28 void set_outgoing_message_processor( | |
29 std::unique_ptr<BlimpMessageProcessor> processor); | |
30 | |
31 // BlimpMessageProcessor implementation. | |
32 void ProcessMessage(std::unique_ptr<BlimpMessage> message, | |
33 const net::CompletionCallback& callback) override; | |
34 | |
35 private: | |
36 // Sends engine an update of the client's geoposition. | |
37 void OnLocationUpdate(const device::LocationProvider* location_provider, | |
38 const device::Geoposition& position); | |
39 | |
40 // Handles a request from the Engine to change the accuracy level of the | |
41 // Geolocation information reported to it. | |
42 void SetInterestLevel(GeolocationSetInterestLevelMessage::Level level); | |
43 | |
44 // Sends a GeolocationPositionMessage that reflects the given | |
45 // geoposition. | |
46 void SendGeolocationPositionMessage(const device::Geoposition& position); | |
47 | |
48 // Sends a GeolocationErrorMessage. | |
49 void SendGeolocationErrorMessage( | |
50 GeolocationErrorMessage::ErrorCode error_code, | |
51 const std::string& error_message); | |
52 | |
53 // Called when a message send completes. | |
54 void OnSendComplete(int result); | |
55 | |
56 // Used to obtain the client's location. | |
57 std::unique_ptr<device::LocationProvider> location_provider_; | |
58 | |
59 // Used to send BlimpMessage::GEOLOCATION message to the engine. | |
60 std::unique_ptr<BlimpMessageProcessor> outgoing_message_processor_; | |
61 | |
62 // True if a message is in the process of being sent. | |
63 bool am_sending_message_ = false; | |
64 | |
65 // True if location has been updated but a message cannot be sent at the | |
66 // moment. | |
67 bool need_to_send_message_ = false; | |
68 | |
69 DISALLOW_COPY_AND_ASSIGN(GeolocationFeature); | |
70 }; | |
71 | |
72 } // namespace client | |
73 } // namespace blimp | |
74 | |
75 #endif // BLIMP_CLIENT_CORE_GEOLOCATION_GEOLOCATION_FEATURE_H_ | |
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