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| 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 #include "chrome/browser/media/audio_stream_indicator.h" |
| 6 |
| 7 #include "base/bind.h" |
| 8 #include "chrome/browser/tab_contents/tab_util.h" |
| 9 #include "content/public/browser/browser_thread.h" |
| 10 #include "content/public/browser/invalidate_type.h" |
| 11 #include "content/public/browser/render_process_host.h" |
| 12 #include "content/public/browser/render_view_host.h" |
| 13 #include "content/public/browser/web_contents.h" |
| 14 |
| 15 using content::BrowserThread; |
| 16 using content::WebContents; |
| 17 |
| 18 AudioStreamIndicator::AudioStreamIndicator() {} |
| 19 AudioStreamIndicator::~AudioStreamIndicator() {} |
| 20 |
| 21 void AudioStreamIndicator::UpdateWebContentsStatus(int render_process_id, |
| 22 int render_view_id, |
| 23 bool playing) { |
| 24 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
| 25 |
| 26 BrowserThread::PostTask( |
| 27 BrowserThread::UI, FROM_HERE, |
| 28 base::Bind(&AudioStreamIndicator::UpdateWebContentsStatusOnUIThread, |
| 29 this, render_process_id, render_view_id, playing)); |
| 30 } |
| 31 |
| 32 bool AudioStreamIndicator::IsPlayingAudio(WebContents* contents) { |
| 33 DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
| 34 |
| 35 RenderViewId id(contents->GetRenderProcessHost()->GetID(), |
| 36 contents->GetRenderViewHost()->GetRoutingID()); |
| 37 return audio_streams_.find(id) != audio_streams_.end(); |
| 38 } |
| 39 |
| 40 AudioStreamIndicator::RenderViewId::RenderViewId(int render_process_id, |
| 41 int render_view_id) |
| 42 : render_process_id(render_process_id), |
| 43 render_view_id(render_view_id) { |
| 44 } |
| 45 |
| 46 bool AudioStreamIndicator::RenderViewId::operator<( |
| 47 const RenderViewId& other) const { |
| 48 if (render_process_id != other.render_process_id) |
| 49 return render_process_id < other.render_process_id; |
| 50 |
| 51 return render_view_id < other.render_view_id; |
| 52 } |
| 53 |
| 54 void AudioStreamIndicator::UpdateWebContentsStatusOnUIThread( |
| 55 int render_process_id, |
| 56 int render_view_id, |
| 57 bool playing) { |
| 58 RenderViewId id(render_process_id, render_view_id); |
| 59 if (playing) { |
| 60 audio_streams_.insert(id); |
| 61 } else { |
| 62 std::multiset<RenderViewId>::iterator it = audio_streams_.find(id); |
| 63 DCHECK(it != audio_streams_.end()); |
| 64 audio_streams_.erase(it); |
| 65 } |
| 66 |
| 67 WebContents* web_contents = tab_util::GetWebContentsByID(render_process_id, |
| 68 render_view_id); |
| 69 if (web_contents) |
| 70 web_contents->NotifyNavigationStateChanged(content::INVALIDATE_TYPE_TAB); |
| 71 } |
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