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// Copyright (c) 2009 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 "chrome/browser/chromeos/power_library.h"
#include "base/message_loop.h"
#include "base/string_util.h"
#include "chrome/browser/chrome_thread.h"
#include "chrome/browser/chromeos/cros_library.h"
// Allows InvokeLater without adding refcounting. This class is a Singleton and
// won't be deleted until it's last InvokeLater is run.
template <>
struct RunnableMethodTraits<chromeos::PowerLibrary> {
void RetainCallee(chromeos::PowerLibrary* obj) {}
void ReleaseCallee(chromeos::PowerLibrary* obj) {}
};
namespace chromeos {
PowerLibrary::PowerLibrary() : status_(chromeos::PowerStatus()) {
if (CrosLibrary::loaded()) {
Init();
}
}
PowerLibrary::~PowerLibrary() {
if (CrosLibrary::loaded()) {
chromeos::DisconnectPowerStatus(power_status_connection_);
}
}
// static
PowerLibrary* PowerLibrary::Get() {
return Singleton<PowerLibrary>::get();
}
// static
bool PowerLibrary::loaded() {
return CrosLibrary::loaded();
}
void PowerLibrary::AddObserver(Observer* observer) {
observers_.AddObserver(observer);
}
void PowerLibrary::RemoveObserver(Observer* observer) {
observers_.RemoveObserver(observer);
}
bool PowerLibrary::line_power_on() const {
return status_.line_power_on;
}
bool PowerLibrary::battery_is_present() const {
return status_.battery_is_present;
}
bool PowerLibrary::battery_fully_charged() const {
return status_.battery_state == chromeos::BATTERY_STATE_FULLY_CHARGED;
}
double PowerLibrary::battery_percentage() const {
return status_.battery_percentage;
}
base::TimeDelta PowerLibrary::battery_time_to_empty() const {
return base::TimeDelta::FromSeconds(status_.battery_time_to_empty);
}
base::TimeDelta PowerLibrary::battery_time_to_full() const {
return base::TimeDelta::FromSeconds(status_.battery_time_to_full);
}
// static
void PowerLibrary::PowerStatusChangedHandler(void* object,
const chromeos::PowerStatus& status) {
PowerLibrary* power = static_cast<PowerLibrary*>(object);
power->UpdatePowerStatus(status);
}
void PowerLibrary::Init() {
power_status_connection_ = chromeos::MonitorPowerStatus(
&PowerStatusChangedHandler, this);
}
void PowerLibrary::UpdatePowerStatus(const chromeos::PowerStatus& status) {
// Make sure we run on UI thread.
if (!ChromeThread::CurrentlyOn(ChromeThread::UI)) {
ChromeThread::PostTask(
ChromeThread::UI, FROM_HERE,
NewRunnableMethod(this, &PowerLibrary::UpdatePowerStatus, status));
return;
}
DLOG(INFO) << "Power" <<
" lpo=" << status.line_power_on <<
" sta=" << status.battery_state <<
" per=" << status.battery_percentage <<
" tte=" << status.battery_time_to_empty <<
" ttf=" << status.battery_time_to_full;
status_ = status;
FOR_EACH_OBSERVER(Observer, observers_, PowerChanged(this));
}
} // namespace chromeos
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