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comparison: widget/windows/nsIdleServiceWin.h
widget/windows/nsIdleServiceWin.h
- changeset 0
- 6474c204b198
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| -1:000000000000 | 0:7da222e94bff |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ | |
| 2 /* vim:expandtab:shiftwidth=4:tabstop=4: | |
| 3 */ | |
| 4 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 5 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 6 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 7 | |
| 8 #ifndef nsIdleServiceWin_h__ | |
| 9 #define nsIdleServiceWin_h__ | |
| 10 | |
| 11 #include "nsIdleService.h" | |
| 12 | |
| 13 | |
| 14 /* NOTE: Compare of GetTickCount() could overflow. This corrects for | |
| 15 * overflow situations. | |
| 16 ***/ | |
| 17 #ifndef SAFE_COMPARE_EVEN_WITH_WRAPPING | |
| 18 #define SAFE_COMPARE_EVEN_WITH_WRAPPING(A, B) (((int)((long)A - (long)B) & 0xFFFFFFFF)) | |
| 19 #endif | |
| 20 | |
| 21 | |
| 22 class nsIdleServiceWin : public nsIdleService | |
| 23 { | |
| 24 public: | |
| 25 NS_DECL_ISUPPORTS_INHERITED | |
| 26 | |
| 27 bool PollIdleTime(uint32_t* aIdleTime); | |
| 28 | |
| 29 static already_AddRefed<nsIdleServiceWin> GetInstance() | |
| 30 { | |
| 31 nsRefPtr<nsIdleServiceWin> idleService = | |
| 32 nsIdleService::GetInstance().downcast<nsIdleServiceWin>(); | |
| 33 if (!idleService) { | |
| 34 idleService = new nsIdleServiceWin(); | |
| 35 } | |
| 36 | |
| 37 return idleService.forget(); | |
| 38 } | |
| 39 | |
| 40 protected: | |
| 41 nsIdleServiceWin() { } | |
| 42 virtual ~nsIdleServiceWin() { } | |
| 43 bool UsePollMode(); | |
| 44 }; | |
| 45 | |
| 46 #endif // nsIdleServiceWin_h__ |
