1 // Copyright (c) 2013 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.
5 #include "chrome/browser/extensions/api/audio/audio_api.h"
7 #include "base/lazy_instance.h"
8 #include "base/values.h"
9 #include "chrome/browser/profiles/profile.h"
10 #include "chrome/common/extensions/api/audio.h"
11 #include "extensions/browser/event_router.h"
13 namespace extensions {
15 namespace audio = api::audio;
17 static base::LazyInstance<BrowserContextKeyedAPIFactory<AudioAPI> > g_factory =
18 LAZY_INSTANCE_INITIALIZER;
21 BrowserContextKeyedAPIFactory<AudioAPI>* AudioAPI::GetFactoryInstance() {
22 return g_factory.Pointer();
25 AudioAPI::AudioAPI(content::BrowserContext* context)
26 : browser_context_(context), service_(AudioService::CreateInstance()) {
27 service_->AddObserver(this);
30 AudioAPI::~AudioAPI() {
31 service_->RemoveObserver(this);
36 AudioService* AudioAPI::GetService() const {
40 void AudioAPI::OnDeviceChanged() {
41 if (browser_context_ && EventRouter::Get(browser_context_)) {
42 scoped_ptr<Event> event(new Event(
43 audio::OnDeviceChanged::kEventName,
44 scoped_ptr<base::ListValue>(new base::ListValue())));
45 EventRouter::Get(browser_context_)->BroadcastEvent(event.Pass());
49 bool AudioGetInfoFunction::RunAsync() {
50 AudioService* service =
51 AudioAPI::GetFactoryInstance()->Get(GetProfile())->GetService();
53 service->StartGetInfo(base::Bind(&AudioGetInfoFunction::OnGetInfoCompleted,
58 void AudioGetInfoFunction::OnGetInfoCompleted(const OutputInfo& output_info,
59 const InputInfo& input_info,
62 results_ = api::audio::GetInfo::Results::Create(output_info, input_info);
64 SetError("Error occurred when querying audio device information.");
65 SendResponse(success);
68 bool AudioSetActiveDevicesFunction::RunSync() {
69 scoped_ptr<api::audio::SetActiveDevices::Params> params(
70 api::audio::SetActiveDevices::Params::Create(*args_));
71 EXTENSION_FUNCTION_VALIDATE(params.get());
73 AudioService* service =
74 AudioAPI::GetFactoryInstance()->Get(GetProfile())->GetService();
77 service->SetActiveDevices(params->ids);
81 bool AudioSetPropertiesFunction::RunSync() {
82 scoped_ptr<api::audio::SetProperties::Params> params(
83 api::audio::SetProperties::Params::Create(*args_));
84 EXTENSION_FUNCTION_VALIDATE(params.get());
86 AudioService* service =
87 AudioAPI::GetFactoryInstance()->Get(GetProfile())->GetService();
90 int volume_value = params->properties.volume.get() ?
91 *params->properties.volume : -1;
93 int gain_value = params->properties.gain.get() ?
94 *params->properties.gain : -1;
96 if (!service->SetDeviceProperties(params->id,
97 params->properties.is_muted,
105 } // namespace extensions