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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_UI_WEBUI_ASH_AUDIO_AUDIO_HANDLER_H_
#define CHROME_BROWSER_UI_WEBUI_ASH_AUDIO_AUDIO_HANDLER_H_
#include <tuple>
#include "base/scoped_observation.h"
#include "chrome/browser/ui/webui/ash/audio/audio.mojom.h"
#include "chromeos/ash/components/audio/audio_device.h"
#include "chromeos/ash/components/audio/cras_audio_handler.h"
#include "mojo/public/cpp/bindings/pending_receiver.h"
#include "mojo/public/cpp/bindings/pending_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "mojo/public/cpp/bindings/remote.h"
namespace ash {
class AudioHandler : public audio::mojom::PageHandler,
public CrasAudioHandler::AudioObserver {
public:
AudioHandler(mojo::PendingReceiver<audio::mojom::PageHandler> receiver,
mojo::PendingRemote<audio::mojom::Page> page);
AudioHandler(const AudioHandler&) = delete;
AudioHandler& operator=(const AudioHandler&) = delete;
~AudioHandler() override;
void GetAudioDeviceInfo() override;
void GetActiveOutputDeviceName(
GetActiveOutputDeviceNameCallback callback) override;
void GetActiveInputDeviceName(
GetActiveInputDeviceNameCallback callback) override;
void OpenFeedbackDialog() override;
void OnAudioNodesChanged() override;
void OnOutputNodeVolumeChanged(uint64_t node_id, int volume) override;
void OnInputNodeGainChanged(uint64_t node_id, int gain) override;
void OnOutputMuteChanged(bool mute) override;
void OnInputMuteChanged(
bool mute_on,
CrasAudioHandler::InputMuteChangeMethod method) override;
void OnInputMutedByMicrophoneMuteSwitchChanged(bool mute) override;
void OnActiveOutputNodeChanged() override;
void OnActiveInputNodeChanged() override;
private:
void UpdateAudioDeviceInfo();
base::ScopedObservation<CrasAudioHandler, AudioObserver> observation_{this};
audio::mojom::DeviceDataPtr CreateDeviceData(const AudioDevice* item) const;
std::tuple<int, bool> GetDeviceVolGain(uint64_t id, bool is_input) const;
mojo::Remote<audio::mojom::Page> page_;
mojo::Receiver<audio::mojom::PageHandler> receiver_;
};
} // namespace ash
#endif // CHROME_BROWSER_UI_WEBUI_ASH_AUDIO_AUDIO_HANDLER_H_
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