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// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/browser/ash/arc/instance_throttle/arc_active_audio_throttle_observer.h"
#include "ash/public/cpp/app_types_util.h"
namespace arc {
ArcActiveAudioThrottleObserver::ArcActiveAudioThrottleObserver()
: ThrottleObserver(kArcActiveAudioThrottleObserverName) {}
void ArcActiveAudioThrottleObserver::StartObserving(
content::BrowserContext* context,
const ObserverStateChangedCallback& callback) {
ThrottleObserver::StartObserving(context, callback);
// CrasAudioHandler can be null in unit tests
if (ash::CrasAudioHandler::Get()) {
ash::CrasAudioHandler::Get()->AddAudioObserver(this);
UpdateActive(ash::CrasAudioHandler::Get()->NumberOfArcStreams());
}
}
void ArcActiveAudioThrottleObserver::StopObserving() {
// CrasAudioHandler can be null in unit tests
if (ash::CrasAudioHandler::Get()) {
ash::CrasAudioHandler::Get()->RemoveAudioObserver(this);
}
ThrottleObserver::StopObserving();
}
void ArcActiveAudioThrottleObserver::OnNumberOfArcStreamsChanged(int32_t num) {
UpdateActive(num);
}
void ArcActiveAudioThrottleObserver::UpdateActive(int32_t num_arc_streams) {
SetActive(num_arc_streams > 0);
}
} // namespace arc
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