void BatteryManager::Init() {
hal::RegisterBatteryObserver(this);
hal::BatteryInformation batteryInfo;
hal::GetCurrentBatteryInformation(&batteryInfo);
UpdateFromBatteryInfo(batteryInfo);
}
void
BatteryManager::Init(nsPIDOMWindow *aWindow)
{
BindToOwner(aWindow);
hal::RegisterBatteryObserver(this);
hal::BatteryInformation batteryInfo;
hal::GetCurrentBatteryInformation(&batteryInfo);
UpdateFromBatteryInfo(batteryInfo);
}
void
BatteryManager::Notify(const hal::BatteryInformation& aBatteryInfo)
{
double previousLevel = mLevel;
bool previousCharging = mCharging;
double previousRemainingTime = mRemainingTime;
UpdateFromBatteryInfo(aBatteryInfo);
if (previousCharging != mCharging) {
DispatchTrustedEvent(CHARGINGCHANGE_EVENT_NAME);
}
if (previousLevel != mLevel) {
DispatchTrustedEvent(LEVELCHANGE_EVENT_NAME);
nsCOMPtr<nsIObserverService> os = mozilla::services::GetObserverService();
nsAutoString data;
data.AppendInt((int)floor(mLevel * 100));
if (NS_FAILED(os->NotifyObservers(nullptr,
BATTERY_LEVEL_CHANGED,
data.get()))) {
NS_WARNING("Failed to notify battery-level-changed observsers!");
}
}
/*
* There are a few situations that could happen here:
* 1. Charging state changed:
* a. Previous remaining time wasn't unkwonw, we have to fire an event for
* the change.
* b. New remaining time isn't unkwonw, we have to fire an event for it.
* 2. Charging state didn't change but remainingTime did, we have to fire
* the event that correspond to the current charging state.
*/
if (mCharging != previousCharging) {
if (previousRemainingTime != kUnknownRemainingTime) {
DispatchTrustedEvent(previousCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
if (mRemainingTime != kUnknownRemainingTime) {
DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
} else if (previousRemainingTime != mRemainingTime) {
DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
}
void
BatteryManager::Notify(const hal::BatteryInformation& aBatteryInfo)
{
double previousLevel = mLevel;
bool previousCharging = mCharging;
double previousRemainingTime = mRemainingTime;
UpdateFromBatteryInfo(aBatteryInfo);
if (previousCharging != mCharging) {
DispatchTrustedEvent(CHARGINGCHANGE_EVENT_NAME);
}
if (previousLevel != mLevel) {
DispatchTrustedEvent(LEVELCHANGE_EVENT_NAME);
}
/*
* There are a few situations that could happen here:
* 1. Charging state changed:
* a. Previous remaining time wasn't unkwonw, we have to fire an event for
* the change.
* b. New remaining time isn't unkwonw, we have to fire an event for it.
* 2. Charging state didn't change but remainingTime did, we have to fire
* the event that correspond to the current charging state.
*/
if (mCharging != previousCharging) {
if (previousRemainingTime != kUnknownRemainingTime) {
DispatchTrustedEvent(previousCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
if (mRemainingTime != kUnknownRemainingTime) {
DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
} else if (previousRemainingTime != mRemainingTime) {
DispatchTrustedEvent(mCharging ? CHARGINGTIMECHANGE_EVENT_NAME
: DISCHARGINGTIMECHANGE_EVENT_NAME);
}
}