kdeconnect-kde/plugins/battery/batteryplugin.cpp
2020-08-17 09:48:10 +00:00

140 lines
5.2 KiB
C++

/**
* SPDX-FileCopyrightText: 2013 Albert Vaca <albertvaka@gmail.com>
*
* SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only OR LicenseRef-KDE-Accepted-GPL
*/
#include "batteryplugin.h"
#include <KLocalizedString>
#include <KPluginFactory>
#include <Solid/Device>
#include <Solid/Battery>
#include <Solid/Predicate>
#include <core/daemon.h>
#include "batterydbusinterface.h"
#include "plugin_battery_debug.h"
K_PLUGIN_CLASS_WITH_JSON(BatteryPlugin, "kdeconnect_battery.json")
BatteryPlugin::BatteryPlugin(QObject* parent, const QVariantList& args)
: KdeConnectPlugin(parent, args)
, batteryDbusInterface(new BatteryDbusInterface(device()))
{
//TODO: Our protocol should support a dynamic number of batteries.
//Solid::DeviceNotifier *notifier = Solid::DeviceNotifier::instance();
}
void BatteryPlugin::connected()
{
NetworkPacket np(PACKET_TYPE_BATTERY_REQUEST, {{QStringLiteral("request"),true}});
sendPacket(np);
const auto batteryDevice = Solid::DeviceInterface::Type::Battery;
const auto primary = Solid::Battery::BatteryType::PrimaryBattery;
QList<Solid::Device> batteries = Solid::Device::listFromQuery(Solid::Predicate(batteryDevice, QStringLiteral("type"), primary));
if (batteries.isEmpty()) {
qCWarning(KDECONNECT_PLUGIN_BATTERY) << "No Primary Battery detected on this system. This may be a bug.";
QList<Solid::Device> allBatteries = Solid::Device::listFromType(batteryDevice);
qCWarning(KDECONNECT_PLUGIN_BATTERY) << "Total quantity of batteries found: " << allBatteries.size();
return;
}
const Solid::Battery* chosen = batteries.first().as<Solid::Battery>();
connect(chosen, &Solid::Battery::chargeStateChanged, this, &BatteryPlugin::chargeChanged);
connect(chosen, &Solid::Battery::chargePercentChanged, this, &BatteryPlugin::chargeChanged);
// Explicitly send the current charge
chargeChanged();
}
void BatteryPlugin::chargeChanged()
{
bool isAnyBatteryCharging = false;
int batteryQuantity = 0;
int cumulativeCharge = 0;
const auto batteryDevice = Solid::DeviceInterface::Type::Battery;
const auto primary = Solid::Battery::BatteryType::PrimaryBattery;
QList<Solid::Device> batteries = Solid::Device::listFromQuery(Solid::Predicate(batteryDevice, QStringLiteral("type"), primary));
for (auto device : batteries) {
const Solid::Battery* battery = device.as<Solid::Battery>();
// Don't look at batteries that have been detached
if (battery->isPresent()) {
batteryQuantity++;
cumulativeCharge += battery->chargePercent();
if (battery->chargeState() == Solid::Battery::ChargeState::Charging) {
isAnyBatteryCharging = true;
}
}
}
if (batteryQuantity == 0) {
qCWarning(KDECONNECT_PLUGIN_BATTERY) << "Primary Battery seems to have been removed. Suspending packets until it is reconnected.";
return;
}
// Load a new Battery object to represent the first device in the list
Solid::Battery* chosen = batteries.first().as<Solid::Battery>();
// Prepare an outgoing network packet
NetworkPacket status(PACKET_TYPE_BATTERY, {{}});
status.set(QStringLiteral("isCharging"), isAnyBatteryCharging);
status.set(QStringLiteral("currentCharge"), cumulativeCharge / batteryQuantity);
// FIXME: In future, we should consider sending an array of battery objects
status.set(QStringLiteral("batteryQuantity"), batteryQuantity);
// We consider primary battery to be low if it will only last for 5 minutes or
// less. This doesn't necessarily work if (for example) Solid finds multiple
// batteries.
if (chosen->remainingTime() < 600 && chosen->chargeState() == Solid::Battery::ChargeState::Discharging) {
status.set(QStringLiteral("thresholdEvent"), (int)ThresholdBatteryLow);
} else {
status.set(QStringLiteral("thresholdEvent"), (int)ThresholdNone);
}
sendPacket(status);
}
BatteryPlugin::~BatteryPlugin()
{
//FIXME: Qt dbus does not allow to remove an adaptor! (it causes a crash in
// the next dbus access to its parent). The implication of not deleting this
// is that disabling the plugin does not remove the interface (that will
// return outdated values) and that enabling it again instantiates a second
// adaptor. This is also a memory leak until the entire device is destroyed.
//batteryDbusInterface->deleteLater();
}
bool BatteryPlugin::receivePacket(const NetworkPacket& np)
{
bool isCharging = np.get<bool>(QStringLiteral("isCharging"), false);
int currentCharge = np.get<int>(QStringLiteral("currentCharge"), -1);
int thresholdEvent = np.get<int>(QStringLiteral("thresholdEvent"), (int)ThresholdNone);
if (batteryDbusInterface->charge() != currentCharge
|| batteryDbusInterface->isCharging() != isCharging
) {
batteryDbusInterface->updateValues(isCharging, currentCharge);
}
if ( thresholdEvent == ThresholdBatteryLow && !isCharging ) {
Daemon::instance()->sendSimpleNotification(QStringLiteral("batteryLow"), i18nc("device name: low battery", "%1: Low Battery", device()->name()), i18n("Battery at %1%", currentCharge), QStringLiteral("battery-040"));
}
return true;
}
#include "batteryplugin.moc"