mirror of
https://github.com/klzgrad/naiveproxy.git
synced 2024-12-01 01:36:09 +03:00
70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
|
// Copyright 2013 The Chromium Authors. All rights reserved.
|
||
|
|
// Use of this source code is governed by a BSD-style license that can be
|
||
|
|
// found in the LICENSE file.
|
||
|
|
|
||
|
|
#include "base/power_monitor/power_monitor_source.h"
|
||
|
|
|
||
|
|
#include "base/power_monitor/power_monitor.h"
|
||
|
|
#include "build/build_config.h"
|
||
|
|
|
||
|
|
namespace base {
|
||
|
|
|
||
|
|
PowerMonitorSource::PowerMonitorSource() = default;
|
||
|
|
PowerMonitorSource::~PowerMonitorSource() = default;
|
||
|
|
|
||
|
|
bool PowerMonitorSource::IsOnBatteryPower() {
|
||
|
|
AutoLock auto_lock(battery_lock_);
|
||
|
|
return on_battery_power_;
|
||
|
|
}
|
||
|
|
|
||
|
|
void PowerMonitorSource::ProcessPowerEvent(PowerEvent event_id) {
|
||
|
|
PowerMonitor* monitor = PowerMonitor::Get();
|
||
|
|
if (!monitor)
|
||
|
|
return;
|
||
|
|
|
||
|
|
PowerMonitorSource* source = monitor->Source();
|
||
|
|
|
||
|
|
// Suppress duplicate notifications. Some platforms may
|
||
|
|
// send multiple notifications of the same event.
|
||
|
|
switch (event_id) {
|
||
|
|
case POWER_STATE_EVENT:
|
||
|
|
{
|
||
|
|
bool new_on_battery_power = source->IsOnBatteryPowerImpl();
|
||
|
|
bool changed = false;
|
||
|
|
|
||
|
|
{
|
||
|
|
AutoLock auto_lock(source->battery_lock_);
|
||
|
|
if (source->on_battery_power_ != new_on_battery_power) {
|
||
|
|
changed = true;
|
||
|
|
source->on_battery_power_ = new_on_battery_power;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
if (changed)
|
||
|
|
monitor->NotifyPowerStateChange(new_on_battery_power);
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case RESUME_EVENT:
|
||
|
|
if (source->suspended_) {
|
||
|
|
source->suspended_ = false;
|
||
|
|
monitor->NotifyResume();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
case SUSPEND_EVENT:
|
||
|
|
if (!source->suspended_) {
|
||
|
|
source->suspended_ = true;
|
||
|
|
monitor->NotifySuspend();
|
||
|
|
}
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
void PowerMonitorSource::SetInitialOnBatteryPowerState(bool on_battery_power) {
|
||
|
|
// Must only be called before a monitor exists, otherwise the caller should
|
||
|
|
// have just used a normal ProcessPowerEvent(POWER_STATE_EVENT) call.
|
||
|
|
DCHECK(!PowerMonitor::Get());
|
||
|
|
on_battery_power_ = on_battery_power;
|
||
|
|
}
|
||
|
|
|
||
|
|
} // namespace base
|