[systemsettings] Reload the AboutSettings storage models when items a…

…re added/removed. Fixes JB#44031

src/aboutsettings.cpp

@@ -42,6 +42,7 @@
 #include <QTextStream>
 #include <QVariant>
 #include <QSettings>
+#include <QTimer>
 
 namespace
 {
@@ -126,6 +127,11 @@ AboutSettings::AboutSettings(QObject *parent)
     m_vendorVersion = settings.value(QStringLiteral("Version")).toString();
 
     refreshStorageModels();
+
+    connect(&m_partitionManager, &PartitionManager::partitionAdded,
+            this, &AboutSettings::partitionCountChanged);
+    connect(&m_partitionManager, &PartitionManager::partitionRemoved,
+            this, &AboutSettings::partitionCountChanged);
 }
 
 AboutSettings::~AboutSettings()
@@ -227,12 +233,24 @@ QString AboutSettings::vendorVersion() const
 }
 
 void AboutSettings::refreshStorageModels()
+{
+    m_partitionManager.refresh();
+
+    partitionCountChanged();
+}
+
+void AboutSettings::partitionCountChanged()
+{
+    // Queue the method invocation in case several list changes are made consecutively, so that
+    // the list is only reloaded once.
+    QTimer::singleShot(0, this, &AboutSettings::reloadStorageLists);
+}
+
+void AboutSettings::reloadStorageLists()
 {
     m_internalStorage.clear();
     m_externalStorage.clear();
 
-    m_partitionManager.refresh();
-
     for (auto partition : m_partitionManager.partitions()) {
         QVariantMap row;
         row[QStringLiteral("mounted")] = partition.status() == Partition::Mounted;

src/aboutsettings.h

@@ -92,6 +92,9 @@ class SYSTEMSETTINGS_EXPORT AboutSettings: public QObject
     void storageChanged();
 
 private:
+    void partitionCountChanged();
+    void reloadStorageLists();
+
     QNetworkInfo *m_netinfo;
     QDeviceInfo *m_devinfo;