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// Copyright 2017 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/policy/remote_commands/device_command_set_volume_job.h"
#include <memory>
#include <optional>
#include <utility>
#include "base/check_deref.h"
#include "base/functional/bind.h"
#include "base/json/json_reader.h"
#include "base/syslog_logging.h"
#include "base/task/single_thread_task_runner.h"
#include "base/values.h"
#include "chromeos/ash/components/audio/cras_audio_handler.h"
#include "components/policy/proto/device_management_backend.pb.h"
namespace policy {
namespace {
bool ShouldMute(const ash::CrasAudioHandler& audio_handler,
int new_output_volume) {
// Note that the new output volume only takes effect asynchronously,
// so we can not use `CrasAudioHandler::IsOutputVolumeBelowDefaultMuteLevel()`
// as it will return an answer based on the old output volume.
return new_output_volume <
audio_handler.GetOutputDefaultVolumeMuteThreshold();
}
} // namespace
constexpr char DeviceCommandSetVolumeJob::kVolumeFieldName[] = "volume";
DeviceCommandSetVolumeJob::DeviceCommandSetVolumeJob() = default;
DeviceCommandSetVolumeJob::~DeviceCommandSetVolumeJob() = default;
enterprise_management::RemoteCommand_Type DeviceCommandSetVolumeJob::GetType()
const {
return enterprise_management::RemoteCommand_Type_DEVICE_SET_VOLUME;
}
bool DeviceCommandSetVolumeJob::ParseCommandPayload(
const std::string& command_payload) {
std::optional<base::Value::Dict> root =
base::JSONReader::ReadDict(command_payload);
if (!root) {
return false;
}
std::optional<int> maybe_volume;
maybe_volume = root->FindInt(kVolumeFieldName);
if (!maybe_volume) {
return false;
}
volume_ = *maybe_volume;
if (volume_ < 0 || volume_ > 100) {
return false;
}
return true;
}
void DeviceCommandSetVolumeJob::RunImpl(CallbackWithResult result_callback) {
SYSLOG(INFO) << "Running set volume command, volume = " << volume_;
auto& audio_handler = CHECK_DEREF(ash::CrasAudioHandler::Get());
audio_handler.SetOutputVolumePercent(volume_);
audio_handler.SetOutputMute(ShouldMute(audio_handler, volume_));
base::SingleThreadTaskRunner::GetCurrentDefault()->PostTask(
FROM_HERE, base::BindOnce(std::move(result_callback),
ResultType::kSuccess, std::nullopt));
}
} // namespace policy
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