Index: chrome/browser/media/router/media_sink_service.h |
diff --git a/chrome/browser/media/router/media_sink_service.h b/chrome/browser/media/router/media_sink_service.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..67dbcc7162135f2ed9103025bfe7800f960a9ba5 |
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+++ b/chrome/browser/media/router/media_sink_service.h |
@@ -0,0 +1,46 @@ |
+// Copyright 2017 The Chromium Authors. All rights reserved. |
+// Use of this source code is governed by a BSD-style license that can be |
+// found in the LICENSE file. |
+ |
+#ifndef CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ |
+#define CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ |
+ |
+#include <memory> |
+ |
+#include "base/callback_list.h" |
imcheng
2017/02/07 00:48:14
Did you mean to include base/callback.h ?
zhaobin
2017/02/07 02:38:50
Done.
|
+#include "chrome/browser/media/router/media_sink.h" |
+ |
+namespace media_router { |
+ |
+class MediaSinksObserver; |
+ |
+// MediaSinkService defines an interface which can be implemented by DIAL, Cast |
imcheng
2017/02/07 00:48:13
Comment suggestion:
A service which can be used t
zhaobin
2017/02/07 02:38:50
Done.
|
+// or future protocols to produce MediaSinks from device discovery/resolution. |
+// The service is also responsible for answering MediaSink queries. |
imcheng
2017/02/07 00:48:13
Can you also document threading assumptions? e.g.,
zhaobin
2017/02/07 02:38:50
Done.
|
+class MediaSinkService { |
imcheng
2017/02/07 00:48:14
Please also define a virtual destructor.
zhaobin
2017/02/07 02:38:50
Done.
|
+ public: |
+ // Callback used for |Start()|. |
+ // Arg 0: |this| |
+ // Arg 1: Sinks discovered and resolved by the service. |
+ using OnSinksDiscoveredCallback = |
+ base::Callback<void(const const MediaSinkService*, |
imcheng
2017/02/07 00:48:13
Hmm, not quite sure if we still need to pass |this
zhaobin
2017/02/07 02:38:50
Done.
|
+ const std::vector<MediaSink>&)>; |
+ |
+ // Starts sink discovery. No-ops if already started. |
+ // Sinks discovered and resolved are continuously passed to |
+ // |callback|. |
+ virtual void Start(const OnSinksDiscoveredCallback& callback) = 0; |
+ |
+ // Adds a sink query to observe for MediaSink updates. |
+ // Only one observer can be added for a given MediaSource. |
+ // Start() must be called first. This class does not take |
+ // ownership of |observer|. |
+ virtual void AddSinkQuery(MediaSinksObserver* observer) = 0; |
+ |
+ // Removes a sink query and stop observing for MediaSink updates. |
+ virtual void RemoveSinkQuery(MediaSinksObserver* observer) = 0; |
+}; |
+ |
+} // namespace media_router |
+ |
+#endif // CHROME_BROWSER_MEDIA_ROUTER_MEDIA_SINK_SERVICE_H_ |