Index: chrome/browser/media/audio_stream_indicator.cc |
diff --git a/chrome/browser/media/audio_stream_indicator.cc b/chrome/browser/media/audio_stream_indicator.cc |
new file mode 100644 |
index 0000000000000000000000000000000000000000..8418a2c98601dc9688fa7927c20eaabe71de6b9b |
--- /dev/null |
+++ b/chrome/browser/media/audio_stream_indicator.cc |
@@ -0,0 +1,71 @@ |
+// Copyright (c) 2012 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. |
+ |
+#include "chrome/browser/media/audio_stream_indicator.h" |
+ |
+#include "base/bind.h" |
+#include "chrome/browser/tab_contents/tab_util.h" |
+#include "content/public/browser/browser_thread.h" |
+#include "content/public/browser/invalidate_type.h" |
+#include "content/public/browser/render_process_host.h" |
+#include "content/public/browser/render_view_host.h" |
+#include "content/public/browser/web_contents.h" |
+ |
+using content::BrowserThread; |
+using content::WebContents; |
+ |
+AudioStreamIndicator::AudioStreamIndicator() {} |
+AudioStreamIndicator::~AudioStreamIndicator() {} |
+ |
+void AudioStreamIndicator::UpdateWebContentsStatus(int render_process_id, |
+ int render_view_id, |
+ bool playing) { |
+ DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); |
+ |
+ BrowserThread::PostTask( |
+ BrowserThread::UI, FROM_HERE, |
+ base::Bind(&AudioStreamIndicator::UpdateWebContentsStatusOnUIThread, |
+ this, render_process_id, render_view_id, playing)); |
+} |
+ |
+bool AudioStreamIndicator::IsPlayingAudio(WebContents* contents) { |
+ DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI)); |
+ |
+ RenderViewId id(contents->GetRenderProcessHost()->GetID(), |
+ contents->GetRenderViewHost()->GetRoutingID()); |
+ return audio_streams_.find(id) != audio_streams_.end(); |
+} |
+ |
+AudioStreamIndicator::RenderViewId::RenderViewId(int render_process_id, |
+ int render_view_id) |
+ : render_process_id(render_process_id), |
+ render_view_id(render_view_id) { |
+} |
+ |
+bool AudioStreamIndicator::RenderViewId::operator<( |
+ const RenderViewId& other) const { |
+ if (render_process_id != other.render_process_id) |
+ return render_process_id < other.render_process_id; |
+ |
+ return render_view_id < other.render_view_id; |
+} |
+ |
+void AudioStreamIndicator::UpdateWebContentsStatusOnUIThread( |
+ int render_process_id, |
+ int render_view_id, |
+ bool playing) { |
+ RenderViewId id(render_process_id, render_view_id); |
+ if (playing) { |
+ audio_streams_.insert(id); |
+ } else { |
+ std::multiset<RenderViewId>::iterator it = audio_streams_.find(id); |
+ DCHECK(it != audio_streams_.end()); |
+ audio_streams_.erase(it); |
+ } |
+ |
+ WebContents* web_contents = tab_util::GetWebContentsByID(render_process_id, |
+ render_view_id); |
+ if (web_contents) |
+ web_contents->NotifyNavigationStateChanged(content::INVALIDATE_TYPE_TAB); |
+} |