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// Copyright 2022 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_ASH_AUDIO_AUDIO_SURVEY_HANDLER_H_
#define CHROME_BROWSER_ASH_AUDIO_AUDIO_SURVEY_HANDLER_H_
#include "base/memory/weak_ptr.h"
#include "base/scoped_observation.h"
#include "base/scoped_observation_traits.h"
#include "base/system/sys_info.h"
#include "chromeos/ash/components/audio/cras_audio_handler.h"
namespace ash {
// Used to show a Happiness Tracking Survey when the audio server sends a
// trigger event.
class AudioSurveyHandler : public CrasAudioHandler::AudioObserver {
public:
class Delegate {
public:
virtual ~Delegate() = default;
// Adds the survey handler as an observer of AudioObserver.
virtual void AddAudioObserver(
CrasAudioHandler::AudioObserver* observer) = 0;
// Removes the survey handler as an observer of AudioObserver.
virtual void RemoveAudioObserver(
CrasAudioHandler::AudioObserver* observer) = 0;
// Checks whether the device met all conditions to participate the survey.
virtual bool ShouldShowSurvey(CrasAudioHandler::SurveyType type) const = 0;
// Triggers the survey invitation notification, in which when open will
// show the audio survey.
virtual void ShowSurvey(CrasAudioHandler::SurveyType type,
const CrasAudioHandler::AudioSurveyData& data) = 0;
};
AudioSurveyHandler();
// This is used for testing
explicit AudioSurveyHandler(std::unique_ptr<Delegate> delegate);
AudioSurveyHandler(const AudioSurveyHandler&) = delete;
AudioSurveyHandler& operator=(const AudioSurveyHandler&) = delete;
~AudioSurveyHandler() override;
// CrasAudioHandler::AudioObserver
void OnSurveyTriggered(const CrasAudioHandler::AudioSurvey& survey) override;
private:
const std::unique_ptr<Delegate> delegate_;
base::ScopedObservation<Delegate, CrasAudioHandler::AudioObserver>
audio_observer_{this};
base::WeakPtrFactory<AudioSurveyHandler> weak_ptr_factory_{this};
};
} // namespace ash
namespace base {
template <>
struct ScopedObservationTraits<ash::AudioSurveyHandler::Delegate,
ash::CrasAudioHandler::AudioObserver> {
static void AddObserver(ash::AudioSurveyHandler::Delegate* source,
ash::CrasAudioHandler::AudioObserver* observer) {
source->AddAudioObserver(observer);
}
static void RemoveObserver(ash::AudioSurveyHandler::Delegate* source,
ash::CrasAudioHandler::AudioObserver* observer) {
source->RemoveAudioObserver(observer);
}
};
} // namespace base
#endif // CHROME_BROWSER_ASH_AUDIO_AUDIO_SURVEY_HANDLER_H_
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