1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
3 /* This Source Code Form is subject to the terms of the Mozilla Public
4 * License, v. 2.0. If a copy of the MPL was not distributed with this file,
5 * You can obtain one at http://mozilla.org/MPL/2.0/. */
7 #ifndef mozilla_dom_power_WakeLock_h
8 #define mozilla_dom_power_WakeLock_h
11 #include "nsIDOMEventListener.h"
12 #include "nsIWakeLock.h"
14 #include "nsWeakReference.h"
15 #include "nsWrapperCache.h"
17 class nsPIDOMWindowInner
;
25 class WakeLock final
: public nsIDOMEventListener
,
26 public nsSupportsWeakReference
,
29 NS_DECL_NSIDOMEVENTLISTENER
34 // Note: WakeLock lives for the lifetime of the document in order to avoid
35 // exposing GC behavior to pages. This means that
36 // |var foo = navigator.requestWakeLock('cpu'); foo = null;|
37 // doesn't unlock the 'cpu' resource.
41 // Initialize this wake lock on behalf of the given window. Null windows are
42 // allowed; a lock without an associated window is always considered
44 nsresult
Init(const nsAString
& aTopic
, nsPIDOMWindowInner
* aWindow
);
48 nsPIDOMWindowInner
* GetParentObject() const;
50 void GetTopic(nsAString
& aTopic
);
52 void Unlock(ErrorResult
& aRv
);
59 void AttachEventListener();
60 void DetachEventListener();
67 // window that this was created for. Weak reference.
72 } // namespace mozilla
74 #endif // mozilla_dom_power_WakeLock_h