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// Copyright (c) 2012 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.
#ifndef ASH_SYSTEM_POWER_TRAY_POWER_H_
#define ASH_SYSTEM_POWER_TRAY_POWER_H_
#include "ash/system/power/power_status_observer.h"
#include "ash/system/tray/system_tray_item.h"
class SkBitmap;
namespace gfx {
class ImageSkia;
}
namespace ash {
namespace internal {
namespace tray {
class PowerNotificationView;
class PowerTrayView;
}
enum IconSet {
ICON_LIGHT,
ICON_DARK
};
class TrayPower : public SystemTrayItem,
public PowerStatusObserver {
public:
explicit TrayPower(SystemTray* system_tray);
virtual ~TrayPower();
// Gets whether battery charging is unreliable for |supply_status|.
// When a non-standard power supply is connected, the battery may
// change from being charged to discharged frequently depending on the
// charger power and power consumption, i.e usage. In this case we
// do not want to show either a charging or discharging state.
static bool IsBatteryChargingUnreliable(
const PowerSupplyStatus& supply_status);
// Gets the icon index in the battery icon array image based on
// |supply_status|. If |supply_status| is uncertain about the power state,
// returns -1.
static int GetBatteryImageIndex(const PowerSupplyStatus& supply_status);
// Gets the horizontal offset in the battery icon array image based on
// |supply_status|.
static int GetBatteryImageOffset(const PowerSupplyStatus& supply_status);
// Looks up the actual icon in the icon array image for |image_index|.
static gfx::ImageSkia GetBatteryImage(int image_index,
int image_offset,
bool charging_unreliable,
IconSet icon_set);
// Gets the battery accessible string for |supply_status|.
static base::string16 GetAccessibleNameString(
const PowerSupplyStatus& supply_status);
// Gets rounded battery percentage for |battery_percentage|.
static int GetRoundedBatteryPercentage(double battery_percentage);
private:
enum NotificationState {
NOTIFICATION_NONE,
NOTIFICATION_LOW_POWER,
NOTIFICATION_CRITICAL
};
// Overridden from SystemTrayItem.
virtual views::View* CreateTrayView(user::LoginStatus status) OVERRIDE;
virtual views::View* CreateDefaultView(user::LoginStatus status) OVERRIDE;
virtual views::View* CreateNotificationView(
user::LoginStatus status) OVERRIDE;
virtual void DestroyTrayView() OVERRIDE;
virtual void DestroyDefaultView() OVERRIDE;
virtual void DestroyNotificationView() OVERRIDE;
virtual void UpdateAfterLoginStatusChange(user::LoginStatus status) OVERRIDE;
virtual void UpdateAfterShelfAlignmentChange(
ShelfAlignment alignment) OVERRIDE;
// Overridden from PowerStatusObserver.
virtual void OnPowerStatusChanged(const PowerSupplyStatus& status) OVERRIDE;
// Sets |notification_state_|. Returns true if a notification should be shown.
bool UpdateNotificationState(const PowerSupplyStatus& status);
bool UpdateNotificationStateForRemainingTime(int remaining_seconds);
bool UpdateNotificationStateForRemainingPercentage(
double remaining_percentage);
tray::PowerTrayView* power_tray_;
tray::PowerNotificationView* notification_view_;
NotificationState notification_state_;
DISALLOW_COPY_AND_ASSIGN(TrayPower);
};
} // namespace internal
} // namespace ash
#endif // ASH_SYSTEM_POWER_TRAY_POWER_H_
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