base/power_monitor/power_monitor_device_source_chromeos.cc

   1 // Copyright 2014 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/power_monitor/power_monitor.h"
   6 #include "base/power_monitor/power_monitor_device_source.h"
   7 #include "base/power_monitor/power_monitor_source.h"
   8
   9 namespace base {
  10
  11 namespace {
  12
  13 // The most-recently-seen power source.
  14 bool g_on_battery = false;
  15
  16 }  // namespace
  17
  18 // static
  19 void PowerMonitorDeviceSource::SetPowerSource(bool on_battery) {
  20   if (on_battery != g_on_battery) {
  21     g_on_battery = on_battery;
  22     ProcessPowerEvent(POWER_STATE_EVENT);
  23   }
  24 }
  25
  26 // static
  27 void PowerMonitorDeviceSource::HandleSystemSuspending() {
  28   ProcessPowerEvent(SUSPEND_EVENT);
  29 }
  30
  31 // static
  32 void PowerMonitorDeviceSource::HandleSystemResumed() {
  33   ProcessPowerEvent(RESUME_EVENT);
  34 }
  35
  36 bool PowerMonitorDeviceSource::IsOnBatteryPowerImpl() {
  37   return g_on_battery;
  38 }
  39
  40 }  // namespace base