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1 // Copyright 2017 The Chromium Authors. All rights reserved. | 1 // Copyright 2017 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ | 5 #ifndef CHROME_COMMON_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_SERVICE_H_ |
6 #define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ | 6 #define CHROME_COMMON_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_SERVICE_H_ |
7 | 7 |
8 #include <memory> | 8 #include <memory> |
9 #include <vector> | 9 #include <vector> |
10 | 10 |
11 #include "base/callback.h" | 11 #include "base/callback.h" |
| 12 #include "chrome/common/media_router/discovery/media_sink_internal.h" |
12 #include "chrome/common/media_router/media_sink.h" | 13 #include "chrome/common/media_router/media_sink.h" |
13 | 14 |
14 namespace media_router { | 15 namespace media_router { |
15 | 16 |
16 class MediaSinksObserver; | |
17 | |
18 // A service which can be used to start background discovery and resolution of | 17 // A service which can be used to start background discovery and resolution of |
19 // MediaSinks. Often these are remote devices, like Chromecast. In addition, the | 18 // MediaSinks. Often these are remote devices, like Chromecast. In addition, the |
20 // service is capable of answering MediaSink queries using the sinks that it | 19 // service is capable of answering MediaSink queries using the sinks that it |
21 // generated. | 20 // generated. |
22 // This class is not thread safe. All methods must be called from the IO thread. | 21 // This class is not thread safe. All methods must be called from the IO thread. |
23 class MediaSinkService { | 22 class MediaSinkService { |
24 public: | 23 public: |
25 // Callback to be invoked when this class finishes sink discovering. | 24 // Callback to be invoked when this class finishes sink discovering. |
26 // Arg 0: Sinks discovered and resolved by the service. | 25 // Arg 0: Sinks discovered and resolved by the service. |
27 using OnSinksDiscoveredCallback = | 26 using OnSinksDiscoveredCallback = |
28 base::Callback<void(const std::vector<MediaSink>&)>; | 27 base::Callback<void(const std::vector<MediaSinkInternal>&)>; |
29 | 28 |
30 explicit MediaSinkService( | 29 explicit MediaSinkService( |
31 const OnSinksDiscoveredCallback& sinks_discovered_callback); | 30 const OnSinksDiscoveredCallback& sink_discovery_callback); |
32 | 31 |
33 virtual ~MediaSinkService(); | 32 virtual ~MediaSinkService(); |
34 | 33 |
35 // Starts sink discovery. No-ops if already started. | 34 // Starts sink discovery. No-ops if already started. |
36 // Sinks discovered and resolved are continuously passed to | 35 // Sinks discovered and resolved are continuously passed to |
37 // |callback|. | 36 // |callback|. |
38 virtual void Start() = 0; | 37 virtual void Start() = 0; |
39 | 38 |
40 // Adds a sink query to observe for MediaSink updates. | |
41 // Multiple observers can be added for a given MediaSource. | |
42 // Start() must be called first. This class does not take | |
43 // ownership of |observer|. | |
44 virtual void AddSinkQuery(MediaSinksObserver* observer) = 0; | |
45 | |
46 // Removes a sink query and stops observing MediaSink updates. No-op if | |
47 // |observer| is not registered with this class. | |
48 virtual void RemoveSinkQuery(MediaSinksObserver* observer) = 0; | |
49 | |
50 protected: | 39 protected: |
51 OnSinksDiscoveredCallback sinks_discovered_callback_; | 40 OnSinksDiscoveredCallback sink_discovery_callback_; |
52 | 41 |
53 DISALLOW_COPY_AND_ASSIGN(MediaSinkService); | 42 DISALLOW_COPY_AND_ASSIGN(MediaSinkService); |
54 }; | 43 }; |
55 | 44 |
56 } // namespace media_router | 45 } // namespace media_router |
57 | 46 |
58 #endif // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ | 47 #endif // CHROME_COMMON_MEDIA_ROUTER_DISCOVERY_MEDIA_SINK_SERVICE_H_ |
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