1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/widget/windows/nsIdleServiceWin.h Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,46 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
1.5 +/* vim:expandtab:shiftwidth=4:tabstop=4:
1.6 + */
1.7 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.8 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.9 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.10 +
1.11 +#ifndef nsIdleServiceWin_h__
1.12 +#define nsIdleServiceWin_h__
1.13 +
1.14 +#include "nsIdleService.h"
1.15 +
1.16 +
1.17 +/* NOTE: Compare of GetTickCount() could overflow. This corrects for
1.18 +* overflow situations.
1.19 +***/
1.20 +#ifndef SAFE_COMPARE_EVEN_WITH_WRAPPING
1.21 +#define SAFE_COMPARE_EVEN_WITH_WRAPPING(A, B) (((int)((long)A - (long)B) & 0xFFFFFFFF))
1.22 +#endif
1.23 +
1.24 +
1.25 +class nsIdleServiceWin : public nsIdleService
1.26 +{
1.27 +public:
1.28 + NS_DECL_ISUPPORTS_INHERITED
1.29 +
1.30 + bool PollIdleTime(uint32_t* aIdleTime);
1.31 +
1.32 + static already_AddRefed<nsIdleServiceWin> GetInstance()
1.33 + {
1.34 + nsRefPtr<nsIdleServiceWin> idleService =
1.35 + nsIdleService::GetInstance().downcast<nsIdleServiceWin>();
1.36 + if (!idleService) {
1.37 + idleService = new nsIdleServiceWin();
1.38 + }
1.39 +
1.40 + return idleService.forget();
1.41 + }
1.42 +
1.43 +protected:
1.44 + nsIdleServiceWin() { }
1.45 + virtual ~nsIdleServiceWin() { }
1.46 + bool UsePollMode();
1.47 +};
1.48 +
1.49 +#endif // nsIdleServiceWin_h__
