Const'ify variable + use QStringLiteral

libcolorcorrect/compositorcoloradaptor.cpp

@@ -105,7 +105,7 @@ void CompositorAdaptor::handlePropertiesChanged(const QString &interfaceName, co
 
 void CompositorAdaptor::sendAutoLocationUpdate(double latitude, double longitude)
 {
-    m_iface->call("nightColorAutoLocationUpdate", latitude, longitude);
+    m_iface->call(QStringLiteral("nightColorAutoLocationUpdate"), latitude, longitude);
 }
 
 }

libcolorcorrect/kded/locationupdater.cpp

@@ -15,8 +15,8 @@ K_PLUGIN_CLASS_WITH_JSON(LocationUpdater, "colorcorrectlocationupdater.json")
 
 LocationUpdater::LocationUpdater(QObject *parent, const QList<QVariant> &)
     : KDEDModule(parent)
+    , m_adaptor(new ColorCorrect::CompositorAdaptor(this))
 {
-    m_adaptor = new ColorCorrect::CompositorAdaptor(this);
     m_configWatcher = KConfigWatcher::create(KSharedConfig::openConfig(QStringLiteral("kwinrc")));
     connect(m_configWatcher.data(), &KConfigWatcher::configChanged, this, &LocationUpdater::resetLocator);
     connect(m_adaptor, &ColorCorrect::CompositorAdaptor::runningChanged, this, &LocationUpdater::resetLocator);

libcolorcorrect/kded/locationupdater.h

@@ -25,7 +25,7 @@ private:
     void resetLocator();
     void sendLocation(double latitude, double longitude);
 
-    ColorCorrect::CompositorAdaptor *m_adaptor = nullptr;
+    ColorCorrect::CompositorAdaptor *const m_adaptor;
     ColorCorrect::Geolocator *m_locator = nullptr;
     KConfigWatcher::Ptr m_configWatcher;
 };

libkworkspace/autostartscriptdesktopfile.cpp

@@ -13,7 +13,7 @@ static const auto autostartScriptKey = QStringLiteral("X-KDE-AutostartScript");
 
 QDir AutostartScriptDesktopFile::autostartLocation()
 {
-    return QDir(QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation)).filePath("autostart");
+    return QDir(QStandardPaths::writableLocation(QStandardPaths::GenericConfigLocation)).filePath(QStringLiteral("autostart"));
 }
 
 AutostartScriptDesktopFile::AutostartScriptDesktopFile(const QString &name, const QString &execPath)