power_manager/powerd/system/display/display_power_setter_stub.h

// Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef POWER_MANAGER_POWERD_SYSTEM_DISPLAY_DISPLAY_POWER_SETTER_STUB_H_
#define POWER_MANAGER_POWERD_SYSTEM_DISPLAY_DISPLAY_POWER_SETTER_STUB_H_

#include <base/time/time.h>
#include <chromeos/dbus/service_constants.h>

#include "power_manager/common/clock.h"
#include "power_manager/powerd/system/display/display_power_setter.h"

namespace power_manager {
namespace system {

// Stub DisplayPowerSetterInterface implementation for tests that just
// keeps track of the most-recently-requested change.
class DisplayPowerSetterStub : public DisplayPowerSetterInterface {
 public:
  DisplayPowerSetterStub();
  DisplayPowerSetterStub(const DisplayPowerSetterStub&) = delete;
  DisplayPowerSetterStub& operator=(const DisplayPowerSetterStub&) = delete;

  ~DisplayPowerSetterStub() override;

  chromeos::DisplayPowerState state() const { return state_; }
  base::TimeDelta delay() const { return delay_; }
  int num_power_calls() const { return num_power_calls_; }
  void reset_num_power_calls() { num_power_calls_ = 0; }
  bool dimmed() const { return dimmed_; }
  base::TimeTicks last_set_display_power_time() const {
    return last_set_display_power_time_;
  }
  void set_clock(Clock* clock) { clock_ = clock; }

  // DisplayPowerSetterInterface implementation:
  void SetDisplayPower(chromeos::DisplayPowerState state,
                       base::TimeDelta delay) override;
  void SetDisplaySoftwareDimming(bool dimmed) override;

 private:
  // Not owned and may be null. Used to update |last_set_display_power_time_|.
  Clock* clock_;

  // Arguments passed to most-recent SetDisplayPower() call.
  chromeos::DisplayPowerState state_;
  base::TimeDelta delay_;

  // Number of times that SetDisplayPower() has been called.
  int num_power_calls_;

  // Last time at which SetDisplayPower() was called.
  base::TimeTicks last_set_display_power_time_;

  // Value of most-recent SetDisplaySoftwareDimming() call.
  bool dimmed_;
};

}  // namespace system
}  // namespace power_manager

#endif  // POWER_MANAGER_POWERD_SYSTEM_DISPLAY_DISPLAY_POWER_SETTER_STUB_H_