dom/power/PowerManagerService.h
author Norisz Fay <nfay@mozilla.com>
Wed, 20 Oct 2021 12:24:14 +0300
changeset 596404 e45ba61007d1f8771179c0cc258166930acd75a5
parent 569445 ea82d6881480c6f1423b1b0de20ed032cec83745
permissions -rw-r--r--
Backed out 2 changesets (bug 1732674) for line iterator crashes (bug 1733047) a=backout Backed out changeset 730555699380 (bug 1732674) Backed out changeset f529288a6dde (bug 1732674)

/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set ts=8 sts=2 et sw=2 tw=80: */
/* 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_power_PowerManagerService_h
#define mozilla_dom_power_PowerManagerService_h

#include "nsCOMPtr.h"
#include "nsHashKeys.h"
#include "nsTArray.h"
#include "nsIDOMWakeLockListener.h"
#include "nsIPowerManagerService.h"
#include "mozilla/HalWakeLockInformation.h"
#include "mozilla/StaticPtr.h"
#include "mozilla/dom/WakeLock.h"

namespace mozilla {
namespace dom {

class ContentParent;

namespace power {

class PowerManagerService : public nsIPowerManagerService,
                            public hal::WakeLockObserver {
 public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIPOWERMANAGERSERVICE

  PowerManagerService() = default;

  static already_AddRefed<PowerManagerService> GetInstance();

  void Init();

  // Implement WakeLockObserver
  void Notify(const hal::WakeLockInformation& aWakeLockInfo) override;

  already_AddRefed<WakeLock> NewWakeLock(const nsAString& aTopic,
                                         nsPIDOMWindowInner* aWindow,
                                         mozilla::ErrorResult& aRv);

 private:
  ~PowerManagerService();

  void ComputeWakeLockState(const hal::WakeLockInformation& aWakeLockInfo,
                            nsAString& aState);

  static StaticRefPtr<PowerManagerService> sSingleton;

  nsTArray<nsCOMPtr<nsIDOMMozWakeLockListener>> mWakeLockListeners;
};

}  // namespace power
}  // namespace dom
}  // namespace mozilla

#endif  // mozilla_dom_power_PowerManagerService_h