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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. |
2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
4 | 4 |
5 #include "base/system_monitor/system_monitor.h" | 5 #include "base/system_monitor/system_monitor.h" |
6 | 6 |
7 namespace base { | 7 namespace base { |
8 | 8 |
9 void SystemMonitor::ProcessWmPowerBroadcastMessage(int event_id) { | |
10 PowerEvent power_event; | |
11 switch (event_id) { | |
12 case PBT_APMPOWERSTATUSCHANGE: // The power status changed. | |
13 power_event = POWER_STATE_EVENT; | |
14 break; | |
15 case PBT_APMRESUMEAUTOMATIC: // Resume from suspend. | |
16 //case PBT_APMRESUMESUSPEND: // User-initiated resume from suspend. | |
17 // We don't notify for this latter event | |
18 // because if it occurs it is always sent as a | |
19 // second event after PBT_APMRESUMEAUTOMATIC. | |
20 power_event = RESUME_EVENT; | |
21 break; | |
22 case PBT_APMSUSPEND: // System has been suspended. | |
23 power_event = SUSPEND_EVENT; | |
24 break; | |
25 default: | |
26 return; | |
27 | |
28 // Other Power Events: | |
29 // PBT_APMBATTERYLOW - removed in Vista. | |
30 // PBT_APMOEMEVENT - removed in Vista. | |
31 // PBT_APMQUERYSUSPEND - removed in Vista. | |
32 // PBT_APMQUERYSUSPENDFAILED - removed in Vista. | |
33 // PBT_APMRESUMECRITICAL - removed in Vista. | |
34 // PBT_POWERSETTINGCHANGE - user changed the power settings. | |
35 } | |
36 ProcessPowerMessage(power_event); | |
37 } | |
38 | |
39 // Function to query the system to see if it is currently running on | 9 // Function to query the system to see if it is currently running on |
40 // battery power. Returns true if running on battery. | 10 // battery power. Returns true if running on battery. |
41 bool SystemMonitor::IsBatteryPower() { | 11 bool SystemMonitor::IsBatteryPower() { |
42 SYSTEM_POWER_STATUS status; | 12 SYSTEM_POWER_STATUS status; |
43 if (!GetSystemPowerStatus(&status)) { | 13 if (!GetSystemPowerStatus(&status)) { |
44 DLOG_GETLASTERROR(ERROR) << "GetSystemPowerStatus failed"; | 14 DLOG_GETLASTERROR(ERROR) << "GetSystemPowerStatus failed"; |
45 return false; | 15 return false; |
46 } | 16 } |
47 return (status.ACLineStatus == 0); | 17 return (status.ACLineStatus == 0); |
48 } | 18 } |
49 | 19 |
50 } // namespace base | 20 } // namespace base |
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