Move chrome://media-internals to content. This allows us to hide implementation details from the pu…

chrome/browser/media/media_capture_devices_dispatcher.cc

 // 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/media_capture_devices_dispatcher.h"
 
+#include "chrome/browser/media/media_stream_capture_indicator.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
+#include "chrome/browser/profiles/profile.h"
 #include "chrome/common/pref_names.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/media_devices_monitor.h"
 #include "content/public/common/media_stream_request.h"
 
 using content::BrowserThread;
 using content::MediaStreamDevices;
 
+namespace {
+
+const content::MediaStreamDevice* FindDefaultDeviceWithId(
+    const content::MediaStreamDevices& devices,
+    const std::string& device_id) {
+  if (devices.empty())
+    return NULL;
+
+  content::MediaStreamDevices::const_iterator iter = devices.begin();
+  for (; iter != devices.end(); ++iter) {
+    if (iter->id == device_id) {
+      return &(*iter);
+    }
+  }
+
+  return &(*devices.begin());
+};
+
+}  // namespace
+
+
+MediaCaptureDevicesDispatcher* MediaCaptureDevicesDispatcher::GetInstance() {
+  return Singleton<MediaCaptureDevicesDispatcher>::get();
+}
+
 MediaCaptureDevicesDispatcher::MediaCaptureDevicesDispatcher()
-    : devices_enumerated_(false) {}
+    : devices_enumerated_(false),
+      media_stream_capture_indicator_(new MediaStreamCaptureIndicator()) {}
 
 MediaCaptureDevicesDispatcher::~MediaCaptureDevicesDispatcher() {}
 
 void MediaCaptureDevicesDispatcher::RegisterUserPrefs(
     PrefServiceSyncable* user_prefs) {
   if (!user_prefs->FindPreference(prefs::kDefaultAudioCaptureDevice)) {
     user_prefs->RegisterStringPref(prefs::kDefaultAudioCaptureDevice,
                                    std::string(),
                                    PrefServiceSyncable::UNSYNCABLE_PREF);
   }
   if (!user_prefs->FindPreference(prefs::kDefaultVideoCaptureDevice)) {
     user_prefs->RegisterStringPref(prefs::kDefaultVideoCaptureDevice,
                                    std::string(),
                                    PrefServiceSyncable::UNSYNCABLE_PREF);
   }
 }
 
-void MediaCaptureDevicesDispatcher::AudioCaptureDevicesChanged(
-    const MediaStreamDevices& devices) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&MediaCaptureDevicesDispatcher::UpdateAudioDevicesOnUIThread,
-                 this, devices));
-}
-
-void MediaCaptureDevicesDispatcher::VideoCaptureDevicesChanged(
-    const MediaStreamDevices& devices) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
-
-  BrowserThread::PostTask(
-      BrowserThread::UI, FROM_HERE,
-      base::Bind(&MediaCaptureDevicesDispatcher::UpdateVideoDevicesOnUIThread,
-                 this, devices));
-}
-
 void MediaCaptureDevicesDispatcher::AddObserver(Observer* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!observers_.HasObserver(observer))
     observers_.AddObserver(observer);
 }
 
 void MediaCaptureDevicesDispatcher::RemoveObserver(Observer* observer) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   observers_.RemoveObserver(observer);
 }
@@ skipping 15 matching lines @@
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   if (!devices_enumerated_) {
     BrowserThread::PostTask(
         BrowserThread::IO, FROM_HERE,
         base::Bind(&content::EnsureMonitorCaptureDevices));
     devices_enumerated_ = true;
   }
   return video_devices_;
 }
 
+void MediaCaptureDevicesDispatcher::GetDefaultDevicesForProfile(
+    Profile* profile,
+    bool audio,
+    bool video,
+    content::MediaStreamDevices* devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(audio || video);
+
+  PrefService* prefs = profile->GetPrefs();
+  std::string default_device;
+  if (audio) {
+    default_device = prefs->GetString(prefs::kDefaultAudioCaptureDevice);
+    GetRequestedDevice(default_device, true, false, devices);
+  }
+
+  if (video) {
+    default_device = prefs->GetString(prefs::kDefaultVideoCaptureDevice);
+    GetRequestedDevice(default_device, false, true, devices);
+  }
+}
+
+void MediaCaptureDevicesDispatcher::GetRequestedDevice(
+    const std::string& requested_device_id,
+    bool audio,
+    bool video,
+    content::MediaStreamDevices* devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
+  DCHECK(audio || video);
+
+  if (audio) {
+    const content::MediaStreamDevices& audio_devices = GetAudioCaptureDevices();
+    const content::MediaStreamDevice* const device =
+        FindDefaultDeviceWithId(audio_devices, requested_device_id);
+    if (device)
+      devices->push_back(*device);
+  }
+  if (video) {
+    const content::MediaStreamDevices& video_devices = GetVideoCaptureDevices();
+    const content::MediaStreamDevice* const device =
+        FindDefaultDeviceWithId(video_devices, requested_device_id);
+    if (device)
+      devices->push_back(*device);
+  }
+}
+
+scoped_refptr<MediaStreamCaptureIndicator>
+    MediaCaptureDevicesDispatcher::GetMediaStreamCaptureIndicator() {
+  return media_stream_capture_indicator_;
+}
+
+void MediaCaptureDevicesDispatcher::OnCaptureDevicesOpened(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  media_stream_capture_indicator_->CaptureDevicesOpened(render_process_id,
+                                                        render_view_id,
+                                                        devices);
+}
+
+void MediaCaptureDevicesDispatcher::OnCaptureDevicesClosed(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  media_stream_capture_indicator_->CaptureDevicesClosed(render_process_id,
+                                                        render_view_id,
+                                                        devices);
+}
+
+void MediaCaptureDevicesDispatcher::OnAudioCaptureDevicesChanged(
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&MediaCaptureDevicesDispatcher::UpdateAudioDevicesOnUIThread,
+                 base::Unretained(this), devices));
+}
+
+void MediaCaptureDevicesDispatcher::OnVideoCaptureDevicesChanged(
+    const content::MediaStreamDevices& devices) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(&MediaCaptureDevicesDispatcher::UpdateVideoDevicesOnUIThread,
+                 base::Unretained(this), devices));
+}
+
+void MediaCaptureDevicesDispatcher::OnMediaRequestStateChanged(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevice& device,
+    content::MediaRequestState state) {
+  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO));
+  BrowserThread::PostTask(
+      BrowserThread::UI, FROM_HERE,
+      base::Bind(
+          &MediaCaptureDevicesDispatcher::UpdateMediaRequestStateOnUIThread,
+          base::Unretained(this), render_process_id, render_view_id, device,
+          state));
+
+}
+
 void MediaCaptureDevicesDispatcher::UpdateAudioDevicesOnUIThread(
     const content::MediaStreamDevices& devices) {
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   devices_enumerated_ = true;
   audio_devices_ = devices;
   FOR_EACH_OBSERVER(Observer, observers_,
                     OnUpdateAudioDevices(audio_devices_));
 }
 
 void MediaCaptureDevicesDispatcher::UpdateVideoDevicesOnUIThread(
     const content::MediaStreamDevices& devices){
   DCHECK(BrowserThread::CurrentlyOn(BrowserThread::UI));
   devices_enumerated_ = true;
   video_devices_ = devices;
   FOR_EACH_OBSERVER(Observer, observers_,
                     OnUpdateVideoDevices(video_devices_));
 }
+
+void MediaCaptureDevicesDispatcher::UpdateMediaRequestStateOnUIThread(
+    int render_process_id,
+    int render_view_id,
+    const content::MediaStreamDevice& device,
+    content::MediaRequestState state) {
+  FOR_EACH_OBSERVER(Observer, observers_,
+                    OnRequestUpdate(render_process_id,
+                                    render_view_id,
+                                    device,
+                                    state));
+}