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// Copyright 2020 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/power/auto_screen_brightness/als_reader.h"
#include <utility>
#include "base/command_line.h"
#include "base/files/file_util.h"
#include "base/logging.h"
#include "base/metrics/histogram_macros.h"
#include "base/process/launch.h"
#include "base/strings/string_number_conversions.h"
#include "base/strings/string_util.h"
#include "base/task/thread_pool.h"
#include "chrome/browser/ash/power/auto_screen_brightness/light_provider_mojo.h"
#include "content/public/browser/browser_thread.h"
namespace ash {
namespace power {
namespace auto_screen_brightness {
AlsReader::AlsReader() = default;
AlsReader::~AlsReader() = default;
void AlsReader::Init() {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(!blocking_task_runner_);
provider_ = std::make_unique<LightProviderMojo>(this);
}
void AlsReader::AddObserver(Observer* const observer) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(observer);
observers_.AddObserver(observer);
if (status_ != AlsInitStatus::kInProgress)
observer->OnAlsReaderInitialized(status_);
}
void AlsReader::RemoveObserver(Observer* const observer) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK(observer);
observers_.RemoveObserver(observer);
}
void AlsReader::SetLux(int lux) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
for (auto& observer : observers_)
observer.OnAmbientLightUpdated(lux);
}
void AlsReader::SetAlsInitStatus(AlsInitStatus status) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
DCHECK_NE(status, AlsInitStatus::kInProgress);
status_ = status;
for (auto& observer : observers_)
observer.OnAlsReaderInitialized(status_);
UMA_HISTOGRAM_ENUMERATION("AutoScreenBrightness.AlsReaderStatus", status_);
}
void AlsReader::SetAlsInitStatusForTesting(AlsInitStatus status) {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
status_ = status;
}
LightProviderInterface::LightProviderInterface(AlsReader* als_reader)
: als_reader_(als_reader) {}
LightProviderInterface::~LightProviderInterface() = default;
} // namespace auto_screen_brightness
} // namespace power
} // namespace ash
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