Use non-deprecated API to check the calendar loading state

CMakeLists.txt

@@ -13,7 +13,7 @@ set(RELEASE_SERVICE_VERSION "${RELEASE_SERVICE_VERSION_MAJOR}.${RELEASE_SERVICE_
 project(kalendar VERSION ${RELEASE_SERVICE_VERSION})
 
 set(QT_MIN_VERSION "5.15.2")
-set(KF5_MIN_VERSION "5.92.0")
+set(KF5_MIN_VERSION "5.96.0")
 set(PIM_VERSION "5.19.0")
 
 include(FeatureSummary)

autotests/incidenceoccurrencemodeltest.cpp

@@ -60,7 +60,7 @@ private Q_SLOTS:
         loadedCheckTimer.setInterval(300);
         loadedCheckTimer.setSingleShot(true);
         connect(&loadedCheckTimer, &QTimer::timeout, this, [&]() {
-            if (calendar->isLoaded()) {
+            if (!calendar->isLoading()) {
                 Q_EMIT calendarLoaded();
             } else {
                 loadedCheckTimer.start();
@@ -74,7 +74,7 @@ private Q_SLOTS:
 
     void testAddCalendar()
     {
-        QVERIFY(calendar->isLoaded());
+        QVERIFY(!calendar->isLoading());
         QVERIFY(calendar->items().count() > 0);
 
         QSignalSpy fetchFinished(&model, &QAbstractItemModel::modelReset);

autotests/todosortfilterproxymodeltest.cpp

@@ -60,7 +60,7 @@ private Q_SLOTS:
         loadedCheckTimer.setInterval(300);
         loadedCheckTimer.setSingleShot(true);
         connect(&loadedCheckTimer, &QTimer::timeout, this, [&]() {
-            if (calendar->isLoaded()) {
+            if (!calendar->isLoading()) {
                 Q_EMIT calendarLoaded();
             } else {
                 loadedCheckTimer.start();
@@ -77,7 +77,7 @@ private Q_SLOTS:
 
     void testAddCalendar()
     {
-        QVERIFY(calendar->isLoaded());
+        QVERIFY(!calendar->isLoading());
         QVERIFY(calendar->items().count() > 0);
 
         QSignalSpy fetchFinished(&model, &QAbstractItemModel::modelReset);

src/calendarmanager.cpp

@@ -328,7 +328,7 @@ void CalendarManager::refreshEnabledTodoCollections()
 
 bool CalendarManager::loading() const
 {
-    return !m_calendar->isLoaded();
+    return m_calendar->isLoading();
 }
 
 void CalendarManager::setCollectionSelectionProxyModel(KCheckableProxyModel *m)