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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 COMPONENTS_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_LINUX_H_
#define COMPONENTS_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_LINUX_H_
#include "base/memory/scoped_refptr.h"
#include "base/memory/weak_ptr.h"
#include "base/power_monitor/power_monitor_source.h"
#include <string>
namespace dbus {
class Bus;
class Signal;
} // namespace dbus
// A PowerMonitorSource that observes sleep/resume signals issued by systemd on
// Linux systems.
class PowerMonitorDeviceSourceLinux : public base::PowerMonitorSource {
public:
PowerMonitorDeviceSourceLinux();
PowerMonitorDeviceSourceLinux(const PowerMonitorDeviceSourceLinux&) = delete;
PowerMonitorDeviceSourceLinux& operator=(
const PowerMonitorDeviceSourceLinux&) = delete;
~PowerMonitorDeviceSourceLinux() override;
// base::PowerMonitorSource:
bool IsOnBatteryPower() override;
private:
void ShutdownBus();
void OnSignalConnected(const std::string& interface_name,
const std::string& signal_name,
bool connected);
void OnPrepareForSleep(dbus::Signal* signal);
scoped_refptr<dbus::Bus> bus_;
base::WeakPtrFactory<PowerMonitorDeviceSourceLinux> weak_ptr_factory_{this};
};
#endif // COMPONENTS_POWER_MONITOR_POWER_MONITOR_DEVICE_SOURCE_LINUX_H_
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