blob: 125e98bc129ca0f5bd904c02a9e51b9c860bf774 [file] [log] [blame]
// Copyright 2018 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include <memory>
#include "ash/system/power/power_status.h"
#include "base/macros.h"
namespace message_center {
class MessageCenter;
} // namespace message_center
namespace ash {
class BatteryNotification;
class DualRoleNotification;
// Controller class to manage power/battery notifications.
class ASH_EXPORT PowerNotificationController : public PowerStatus::Observer {
enum NotificationState {
// Low battery charge.
// Critically low battery charge.
explicit PowerNotificationController(
message_center::MessageCenter* message_center);
~PowerNotificationController() override;
void NotifyUsbNotificationClosedByUser();
friend class PowerNotificationControllerTest;
// Overridden from PowerStatus::Observer.
void OnPowerStatusChanged() override;
// Shows a notification that a low-power USB charger has been connected.
// Returns true if a notification was shown or explicitly hidden.
bool MaybeShowUsbChargerNotification();
// Shows a notification when dual-role devices are connected.
void MaybeShowDualRoleNotification();
// Sets |notification_state_|. Returns true if a notification should be shown.
bool UpdateNotificationState();
bool UpdateNotificationStateForRemainingTime();
bool UpdateNotificationStateForRemainingPercentage();
// Time-based notification thresholds when on battery power.
static constexpr int kCriticalMinutes = 5;
static constexpr int kLowPowerMinutes = 15;
static constexpr int kNoWarningMinutes = 30;
// Percentage-based notification thresholds when using a low-power charger.
static constexpr int kCriticalPercentage = 5;
static constexpr int kLowPowerPercentage = 10;
static constexpr int kNoWarningPercentage = 15;
static const char kUsbNotificationId[];
message_center::MessageCenter* const message_center_; // Unowned.
std::unique_ptr<BatteryNotification> battery_notification_;
std::unique_ptr<DualRoleNotification> dual_role_notification_;
NotificationState notification_state_ = NOTIFICATION_NONE;
// Was the battery full the last time OnPowerStatusChanged() was called?
bool battery_was_full_ = false;
// Was a USB charger connected the last time OnPowerStatusChanged() was
// called?
bool usb_charger_was_connected_ = false;
// Was line power connected the last time onPowerStatusChanged() was called?
bool line_power_was_connected_ = false;
// Has the user already dismissed a low-power notification? Should be set
// back to false when all power sources are disconnected.
bool usb_notification_dismissed_ = false;
} // namespace ash