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// 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 "chrome/browser/extensions/api/audio/audio_api.h"
#include "base/lazy_instance.h"
#include "base/values.h"
#include "chrome/browser/extensions/event_router.h"
#include "chrome/browser/extensions/extension_system.h"
#include "chrome/common/extensions/api/audio.h"
namespace extensions {
namespace audio = api::audio;
static base::LazyInstance<ProfileKeyedAPIFactory<AudioAPI> >
g_factory = LAZY_INSTANCE_INITIALIZER;
// static
ProfileKeyedAPIFactory<AudioAPI>* AudioAPI::GetFactoryInstance() {
return &g_factory.Get();
}
AudioAPI::AudioAPI(Profile* profile)
: profile_(profile),
service_(AudioService::CreateInstance()) {
service_->AddObserver(this);
}
AudioAPI::~AudioAPI() {
service_->RemoveObserver(this);
delete service_;
service_ = NULL;
}
AudioService* AudioAPI::GetService() const {
return service_;
}
void AudioAPI::OnDeviceChanged() {
if (profile_ && ExtensionSystem::Get(profile_)->event_router()) {
scoped_ptr<Event> event(new Event(
audio::OnDeviceChanged::kEventName,
scoped_ptr<base::ListValue>(new base::ListValue())));
ExtensionSystem::Get(profile_)->event_router()->BroadcastEvent(
event.Pass());
}
}
bool AudioGetInfoFunction::RunImpl() {
AudioService* service =
AudioAPI::GetFactoryInstance()->GetForProfile(profile())->GetService();
DCHECK(service);
service->StartGetInfo(base::Bind(&AudioGetInfoFunction::OnGetInfoCompleted,
this));
return true;
}
void AudioGetInfoFunction::OnGetInfoCompleted(const OutputInfo& output_info,
const InputInfo& input_info,
bool success) {
if (success)
results_ = api::audio::GetInfo::Results::Create(output_info, input_info);
else
SetError("Error occurred when querying audio device information.");
SendResponse(success);
}
bool AudioSetActiveDevicesFunction::RunImpl() {
scoped_ptr<api::audio::SetActiveDevices::Params> params(
api::audio::SetActiveDevices::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
AudioService* service =
AudioAPI::GetFactoryInstance()->GetForProfile(profile())->GetService();
DCHECK(service);
service->SetActiveDevices(params->ids);
return true;
}
bool AudioSetPropertiesFunction::RunImpl() {
scoped_ptr<api::audio::SetProperties::Params> params(
api::audio::SetProperties::Params::Create(*args_));
EXTENSION_FUNCTION_VALIDATE(params.get());
AudioService* service =
AudioAPI::GetFactoryInstance()->GetForProfile(profile())->GetService();
DCHECK(service);
int volume_value = params->properties.volume.get() ?
*params->properties.volume : -1;
int gain_value = params->properties.gain.get() ?
*params->properties.gain : -1;
if (!service->SetDeviceProperties(params->id,
params->properties.is_muted,
volume_value,
gain_value))
return false;
else
return true;
}
} // namespace extensions
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