gecko-dev/dom/battery/BatteryManager.h

118 lines
3.8 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is mozilla.org code.
*
* The Initial Developer of the Original Code is Mozilla Foundation
* Portions created by the Initial Developer are Copyright (C) 2011
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Mounir Lamouri <mounir.lamouri@mozilla.com> (Original Author)
*
* Alternatively, the contents of this file may be used under the terms of
* either of the GNU General Public License Version 2 or later (the "GPL"),
* or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#ifndef mozilla_dom_battery_BatteryManager_h
#define mozilla_dom_battery_BatteryManager_h
#include "nsIDOMBatteryManager.h"
#include "nsDOMEventTargetHelper.h"
#include "nsCycleCollectionParticipant.h"
#include "mozilla/Observer.h"
#include "Types.h"
#include "nsDOMEventTargetHelper.h"
class nsPIDOMWindow;
class nsIScriptContext;
namespace mozilla {
namespace hal {
class BatteryInformation;
} // namespace hal
namespace dom {
namespace battery {
class BatteryManager : public nsDOMEventTargetHelper
, public nsIDOMMozBatteryManager
, public BatteryObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIDOMMOZBATTERYMANAGER
NS_FORWARD_NSIDOMEVENTTARGET(nsDOMEventTargetHelper::)
BatteryManager();
void Init(nsPIDOMWindow *aWindow);
void Shutdown();
// For IObserver.
void Notify(const hal::BatteryInformation& aBatteryInfo);
NS_DECL_CYCLE_COLLECTION_CLASS_INHERITED(BatteryManager,
nsDOMEventTargetHelper)
/**
* Returns whether the battery api is supported (ie. not disabled by the user)
* @return whether the battery api is supported.
*/
static bool HasSupport();
private:
/**
* Dispatch a trusted non-cancellable and non-bubbling event to itself.
*/
nsresult DispatchTrustedEventToSelf(const nsAString& aEventName);
/**
* 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;
NS_DECL_EVENT_HANDLER(levelchange)
NS_DECL_EVENT_HANDLER(chargingchange)
NS_DECL_EVENT_HANDLER(chargingtimechange)
NS_DECL_EVENT_HANDLER(dischargingtimechange)
};
} // namespace battery
} // namespace dom
} // namespace mozilla
#endif // mozilla_dom_battery_BatteryManager_h