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// Copyright 2016 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 "components/arc/audio/arc_audio_bridge.h"
#include <utility>
#include "ash/system/audio/tray_audio.h"
#include "base/logging.h"
#include "base/memory/singleton.h"
#include "chromeos/audio/audio_device.h"
#include "components/arc/arc_bridge_service.h"
#include "components/arc/arc_browser_context_keyed_service_factory_base.h"
namespace arc {
namespace {
// Singleton factory for ArcAccessibilityHelperBridge.
class ArcAudioBridgeFactory
: public internal::ArcBrowserContextKeyedServiceFactoryBase<
ArcAudioBridge,
ArcAudioBridgeFactory> {
public:
// Factory name used by ArcBrowserContextKeyedServiceFactoryBase.
static constexpr const char* kName = "ArcAudioBridgeFactory";
static ArcAudioBridgeFactory* GetInstance() {
return base::Singleton<ArcAudioBridgeFactory>::get();
}
private:
friend base::DefaultSingletonTraits<ArcAudioBridgeFactory>;
ArcAudioBridgeFactory() = default;
~ArcAudioBridgeFactory() override = default;
};
} // namespace
// static
ArcAudioBridge* ArcAudioBridge::GetForBrowserContext(
content::BrowserContext* context) {
return ArcAudioBridgeFactory::GetForBrowserContext(context);
}
ArcAudioBridge::ArcAudioBridge(content::BrowserContext* context,
ArcBridgeService* bridge_service)
: arc_bridge_service_(bridge_service), binding_(this) {
arc_bridge_service_->audio()->AddObserver(this);
if (chromeos::CrasAudioHandler::IsInitialized()) {
cras_audio_handler_ = chromeos::CrasAudioHandler::Get();
cras_audio_handler_->AddAudioObserver(this);
}
}
ArcAudioBridge::~ArcAudioBridge() {
if (cras_audio_handler_)
cras_audio_handler_->RemoveAudioObserver(this);
arc_bridge_service_->audio()->RemoveObserver(this);
}
void ArcAudioBridge::OnInstanceReady() {
mojom::AudioInstance* audio_instance =
ARC_GET_INSTANCE_FOR_METHOD(arc_bridge_service_->audio(), Init);
DCHECK(audio_instance); // the instance on ARC side is too old.
mojom::AudioHostPtr host_proxy;
binding_.Bind(mojo::MakeRequest(&host_proxy));
audio_instance->Init(std::move(host_proxy));
available_ = true;
}
void ArcAudioBridge::OnInstanceClosed() {
available_ = false;
}
void ArcAudioBridge::ShowVolumeControls() {
DVLOG(2) << "ArcAudioBridge::ShowVolumeControls";
ash::TrayAudio::ShowPopUpVolumeView();
}
void ArcAudioBridge::OnSystemVolumeUpdateRequest(int32_t percent) {
if (percent < 0 || percent > 100)
return;
cras_audio_handler_->SetOutputVolumePercent(percent);
bool is_muted =
percent <= cras_audio_handler_->GetOutputDefaultVolumeMuteThreshold();
if (cras_audio_handler_->IsOutputMuted() != is_muted)
cras_audio_handler_->SetOutputMute(is_muted);
}
void ArcAudioBridge::OnAudioNodesChanged() {
uint64_t output_id = cras_audio_handler_->GetPrimaryActiveOutputNode();
const chromeos::AudioDevice* output_device =
cras_audio_handler_->GetDeviceFromId(output_id);
bool headphone_inserted =
(output_device &&
output_device->type == chromeos::AudioDeviceType::AUDIO_TYPE_HEADPHONE);
uint64_t input_id = cras_audio_handler_->GetPrimaryActiveInputNode();
const chromeos::AudioDevice* input_device =
cras_audio_handler_->GetDeviceFromId(input_id);
bool microphone_inserted =
(input_device &&
input_device->type == chromeos::AudioDeviceType::AUDIO_TYPE_MIC);
DVLOG(1) << "HEADPHONE " << headphone_inserted << " MICROPHONE "
<< microphone_inserted;
SendSwitchState(headphone_inserted, microphone_inserted);
}
void ArcAudioBridge::OnOutputNodeVolumeChanged(uint64_t node_id, int volume) {
DVLOG(1) << "Output node " << node_id << " volume " << volume;
volume_ = volume;
SendVolumeState();
}
void ArcAudioBridge::OnOutputMuteChanged(bool mute_on, bool system_adjust) {
DVLOG(1) << "Output mute " << mute_on << " by system " << system_adjust;
muted_ = mute_on;
SendVolumeState();
}
void ArcAudioBridge::SendSwitchState(bool headphone_inserted,
bool microphone_inserted) {
uint32_t switch_state = 0;
if (headphone_inserted) {
switch_state |=
(1 << static_cast<uint32_t>(mojom::AudioSwitch::SW_HEADPHONE_INSERT));
}
if (microphone_inserted) {
switch_state |=
(1 << static_cast<uint32_t>(mojom::AudioSwitch::SW_MICROPHONE_INSERT));
}
DVLOG(1) << "Send switch state " << switch_state;
if (!available_)
return;
mojom::AudioInstance* audio_instance = ARC_GET_INSTANCE_FOR_METHOD(
arc_bridge_service_->audio(), NotifySwitchState);
if (audio_instance)
audio_instance->NotifySwitchState(switch_state);
}
void ArcAudioBridge::SendVolumeState() {
DVLOG(1) << "Send volume " << volume_ << " muted " << muted_;
if (!available_)
return;
mojom::AudioInstance* audio_instance = ARC_GET_INSTANCE_FOR_METHOD(
arc_bridge_service_->audio(), NotifyVolumeState);
if (audio_instance)
audio_instance->NotifyVolumeState(volume_, muted_);
}
} // namespace arc
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