Add ability to active multiple devices via the audio API.

chromeos/dbus/cras_audio_client.cc

 // Copyright (c) 2013 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 "chromeos/dbus/cras_audio_client.h"
 
 #include "base/bind.h"
 #include "base/format_macros.h"
 #include "base/strings/stringprintf.h"
 #include "chromeos/dbus/cras_audio_client_stub_impl.h"
@@ skipping 136 matching lines @@
     dbus::MethodCall method_call(cras::kCrasControlInterface,
                                  cras::kRemoveActiveInputNode);
     dbus::MessageWriter writer(&method_call);
     writer.AppendUint64(node_id);
     cras_proxy_->CallMethod(
         &method_call,
         dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
         dbus::ObjectProxy::EmptyResponseCallback());
   }
 
+  virtual void AddActiveOutputNode(uint64 node_id) OVERRIDE {
+    dbus::MethodCall method_call(cras::kCrasControlInterface,
+                                 cras::kAddActiveOutputNode);
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendUint64(node_id);
+    cras_proxy_->CallMethod(&method_call,
+                            dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+                            dbus::ObjectProxy::EmptyResponseCallback());
+  }
+
+  virtual void RemoveActiveOutputNode(uint64 node_id) OVERRIDE {
+    dbus::MethodCall method_call(cras::kCrasControlInterface,
+                                 cras::kRemoveActiveOutputNode);
+    dbus::MessageWriter writer(&method_call);
+    writer.AppendUint64(node_id);
+    cras_proxy_->CallMethod(&method_call,
+                            dbus::ObjectProxy::TIMEOUT_USE_DEFAULT,
+                            dbus::ObjectProxy::EmptyResponseCallback());
+  }
+
  protected:
   virtual void Init(dbus::Bus* bus) OVERRIDE {
     cras_proxy_ = bus->GetObjectProxy(cras::kCrasServiceName,
                                       dbus::ObjectPath(cras::kCrasServicePath));
 
     // Monitor NameOwnerChanged signal.
     cras_proxy_->SetNameOwnerChangedCallback(
         base::Bind(&CrasAudioClientImpl::NameOwnerChangedReceived,
                    weak_ptr_factory_.GetWeakPtr()));
 
@@ skipping 254 matching lines @@
 
 CrasAudioClient::~CrasAudioClient() {
 }
 
 // static
 CrasAudioClient* CrasAudioClient::Create() {
   return new CrasAudioClientImpl();
 }
 
 }  // namespace chromeos