OLD | NEW |
(Empty) | |
| 1 // Copyright (c) 2012 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 CHROME_BROWSER_MEDIA_AUDIO_STREAM_INDICATOR_H_ |
| 6 #define CHROME_BROWSER_MEDIA_AUDIO_STREAM_INDICATOR_H_ |
| 7 |
| 8 #include <map> |
| 9 #include <set> |
| 10 |
| 11 #include "base/memory/ref_counted.h" |
| 12 |
| 13 namespace content { |
| 14 class WebContents; |
| 15 } |
| 16 |
| 17 class AudioStreamIndicator |
| 18 : public base::RefCountedThreadSafe<AudioStreamIndicator> { |
| 19 public: |
| 20 AudioStreamIndicator(); |
| 21 |
| 22 // This method should be called on the IO thread. |
| 23 void UpdateWebContentsStatus(int render_process_id, |
| 24 int render_view_id, |
| 25 int stream_id, |
| 26 bool playing); |
| 27 |
| 28 // This method should be called on the IO thread. |
| 29 bool IsPlayingAudio(content::WebContents* contents); |
| 30 |
| 31 private: |
| 32 struct RenderViewId { |
| 33 RenderViewId(int render_process_id, |
| 34 int render_view_id); |
| 35 |
| 36 // Required to use this struct in the std::multiset below. |
| 37 bool operator<(const RenderViewId& other) const; |
| 38 |
| 39 int render_process_id; |
| 40 int render_view_id; |
| 41 }; |
| 42 |
| 43 friend class base::RefCountedThreadSafe<AudioStreamIndicator>; |
| 44 virtual ~AudioStreamIndicator(); |
| 45 |
| 46 void UpdateWebContentsStatusOnUIThread(int render_process_id, |
| 47 int render_view_id, |
| 48 int stream_id, |
| 49 bool playing); |
| 50 |
| 51 // A map from RenderViews to sets of streams playing in them (each RenderView |
| 52 // might have more than one stream). |
| 53 std::map<RenderViewId, std::set<int> > audio_streams_; |
| 54 }; |
| 55 |
| 56 #endif // CHROME_BROWSER_MEDIA_AUDIO_STREAM_INDICATOR_H_ |
OLD | NEW |