fix currentItem property and signals

Plugins/ZShell/Components/carouselview.cpp

@@ -89,6 +89,8 @@ void CarouselView::setModel(const QVariantList& m) {
 
 	if (newCount == 0) {
 		m_currentRealIndex = -1;
+		m_currentItem = nullptr;
+		emit currentItemChanged();
 
 		releaseAllItems();
 		rebuildArrangement();
@@ -248,6 +250,22 @@ void CarouselView::setCurrentIndex(int idx) {
 	goToIndex(idx);
 }
 
+void CarouselView::updateCurrentItem() {
+	QQuickItem* item = nullptr;
+
+	for (const Slot& s : std::as_const(m_slots)) {
+		if (s.active && s.virtualIndex == m_currentVirtualIndex) {
+			item = s.item;
+			break;
+		}
+	}
+
+	if (item == m_currentItem) return;
+
+	m_currentItem = item;
+	emit currentItemChanged();
+}
+
 void CarouselView::geometryChange(const QRectF& newGeo, const QRectF& oldGeo) {
 	QQuickItem::geometryChange(newGeo, oldGeo);
 
@@ -844,6 +862,7 @@ void CarouselView::relayout() {
 			if (s.item) s.item->setVisible(false);
 		}
 
+		updateCurrentItem();
 		return;
 	}
 
@@ -918,6 +937,8 @@ void CarouselView::relayout() {
 	for (const Slot& s : std::as_const(m_slots)) {
 		positionSlot(s);
 	}
+
+	updateCurrentItem();
 }
 
 void CarouselView::cancelAnimations() {