Show a notification when the battery is present, not absent.

debian/changelog

@@ -2,6 +2,7 @@ lxqt-powermanagement (1.4.0-0ubuntu1) UNRELEASED; urgency=medium
 
   * New upstream release.
   * Bump build dependencies.
+  * Show a notification when the battery is present, not absent.
 
  -- Simon Quigley <tsimonq2@ubuntu.com>  Mon, 13 Nov 2023 11:39:49 -0600
 

debian/patches/battery-ux.patch

@@ -0,0 +1,114 @@
+Description: Show a notification when the battery is present, not absent
+ In virtual machines especially, it is odd to see a message about the battery not being present. This commit moves that message to only display when there is a battery present.
+Author: Simon Quigley <tsimonq2@lubuntu.me>
+Origin: upstream
+Forwarded: https://github.com/lxqt/lxqt-powermanagement/pull/382
+Last-Update: 2023-10-03
+---
+This patch header follows DEP-3: http://dep.debian.net/deps/dep3/
+--- a/src/batterywatcher.cpp
++++ b/src/batterywatcher.cpp
+@@ -43,13 +43,6 @@ BatteryWatcher::BatteryWatcher(QObject *
+ {
+     const QList<Solid::Device> devices = Solid::Device::listFromType(Solid::DeviceInterface::Battery, QString());
+ 
+-    if (devices.isEmpty())
+-    {
+-        LXQt::Notification::notify(tr("No battery!"),
+-                tr("LXQt could not find data about any battery - monitoring disabled"),
+-                QSL("lxqt-powermanagement"));
+-    }
+-
+     for (Solid::Device device : devices)
+     {
+         Solid::Battery *battery = device.as<Solid::Battery>();
+@@ -57,11 +50,24 @@ BatteryWatcher::BatteryWatcher(QObject *
+         {
+             continue;
+         }
++
+         mBatteries << battery;
+         connect(battery, &Solid::Battery::energyChanged, this, &BatteryWatcher::batteryChanged);
+         connect(battery, &Solid::Battery::chargeStateChanged, this, &BatteryWatcher::batteryChanged);
+     }
+ 
++    bool discharging;
++    double chargeLevel;
++    chargeLevelAndStatus(discharging, chargeLevel);
++
++    if (!devices.isEmpty()) {
++        QString status = discharging ? QStringLiteral("Discharging") : QStringLiteral("Charging");
++        QString message = tr("%1 (%2%)").arg(status).arg(chargeLevel);
++        LXQt::Notification::notify(tr("Battery Present"),
++                message,
++                QSL("lxqt-powermanagement"));
++    }
++
+     mBatteryInfoDialog = new BatteryInfoDialog(mBatteries);
+ 
+     connect(&mSettings, &PowerManagementSettings::settingsChanged, this, &BatteryWatcher::settingsChanged);
+@@ -85,19 +91,10 @@ void BatteryWatcher::batteryChanged()
+     static QTime actionTime;
+     static LXQt::Notification *notification = nullptr;
+ 
+-    double totalEnergyFull = 0;
+-    double totalEnergyNow = 0;
+-    bool discharging = true;
++    bool discharging;
+     double chargeLevel;
+ 
+-    for (const Solid::Battery *battery : qAsConst(mBatteries))
+-    {
+-        totalEnergyFull += battery->energyFull();
+-        totalEnergyNow += battery->energy();
+-        discharging &= (battery->chargeState() == Solid::Battery::Discharging);
+-    }
+-
+-    chargeLevel = 100 * totalEnergyNow / totalEnergyFull;
++    chargeLevelAndStatus(discharging, chargeLevel);
+ 
+     qDebug() <<  "BatteryChanged"
+              <<  "discharging:" << discharging
+@@ -160,6 +157,31 @@ void BatteryWatcher::batteryChanged()
+     }
+ }
+ 
++void BatteryWatcher::chargeLevelAndStatus(bool &discharging, double &chargeLevel)
++{
++    double totalEnergyFull = 0;
++    double totalEnergyNow = 0;
++    bool batteries = false;
++    discharging = true;
++
++    for (const Solid::Battery *battery : qAsConst(mBatteries))
++    {
++        batteries = true;
++
++        totalEnergyFull += battery->energyFull();
++        totalEnergyNow += battery->energy();
++        discharging &= (battery->chargeState() == Solid::Battery::Discharging);
++    }
++
++    if (!batteries) {
++        discharging = false;
++        chargeLevel = 0;
++    }
++    else {
++        chargeLevel = 100 * totalEnergyNow / totalEnergyFull;
++    }
++}
++
+ void BatteryWatcher::settingsChanged()
+ {
+     if (!mSettings.isShowIcon())
+--- a/src/batterywatcher.h
++++ b/src/batterywatcher.h
+@@ -51,6 +51,8 @@ private slots:
+     void setPause(TrayIcon::PAUSE duration);
+ 
+ private:
++    void chargeLevelAndStatus(bool &discharging, double &chargeLevel);
++
+     QList<Solid::Battery*> mBatteries;
+     QList<TrayIcon*> mTrayIcons;
+     QTimer mPauseTimer;

debian/patches/series

@@ -0,0 +1 @@
+battery-ux.patch