gecko/dom/battery/BatteryManager.h

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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_dom_battery_BatteryManager_h
#define mozilla_dom_battery_BatteryManager_h
#include "nsDOMEventTargetHelper.h"
#include "nsCycleCollectionParticipant.h"
#include "mozilla/Observer.h"
#include "Types.h"
#include "nsDOMEventTargetHelper.h"
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class nsPIDOMWindow;
class nsIScriptContext;
namespace mozilla {
namespace hal {
class BatteryInformation;
} // namespace hal
namespace dom {
namespace battery {
class BatteryManager : public nsDOMEventTargetHelper
, public BatteryObserver
{
public:
BatteryManager();
void Init(nsPIDOMWindow *aWindow);
void Shutdown();
// For IObserver.
void Notify(const hal::BatteryInformation& aBatteryInfo);
/**
* Returns whether the battery api is supported (ie. not disabled by the user)
* @return whether the battery api is supported.
*/
static bool HasSupport();
/**
* WebIDL Interface
*/
nsPIDOMWindow* GetParentObject() const
{
return GetOwner();
}
virtual JSObject* WrapObject(JSContext* aCx, JSObject* aScope) MOZ_OVERRIDE;
bool Charging() const
{
return mCharging;
}
double ChargingTime() const;
double DischargingTime() const;
double Level() const
{
return mLevel;
}
IMPL_EVENT_HANDLER(chargingchange)
IMPL_EVENT_HANDLER(chargingtimechange)
IMPL_EVENT_HANDLER(dischargingtimechange)
IMPL_EVENT_HANDLER(levelchange)
private:
/**
* Update the battery information stored in the battery manager object using
* a battery information object.
*/
void UpdateFromBatteryInfo(const hal::BatteryInformation& aBatteryInfo);
double mLevel;
bool mCharging;
/**
* Represents the discharging time or the charging time, dpending on the
* current battery status (charging or not).
*/
double mRemainingTime;
};
} // namespace battery
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_battery_BatteryManager_h