fix property changed signals firing multiple times

Plugins/ZShell/Components/carouselview.hpp

@@ -1,5 +1,6 @@
 #pragma once
 
+#include <QQmlParserStatus>
 #include <QElapsedTimer>
 #include <QEasingCurve>
 #include <QList>
@@ -100,8 +101,6 @@ class CarouselView : public QQuickItem {
 	Q_INVOKABLE void incrementCurrentIndex();
 	Q_INVOKABLE void decrementCurrentIndex();
 
-	Q_INVOKABLE void jumpToIndex(int realIndex);
-
 	signals:
 	void delegateChanged();
 	void modelChanged();
@@ -120,10 +119,10 @@ class CarouselView : public QQuickItem {
 	void previewIndexChanged(int realIndex, QVariant modelData);
 
 	protected:
+	void classBegin() override;
+	void componentComplete() override;
 	bool childMouseEventFilter(QQuickItem* item, QEvent* event) override;
-
 	void geometryChange(const QRectF& newGeo, const QRectF& oldGeo) override;
-
 	void mousePressEvent(QMouseEvent* event) override;
 	void mouseMoveEvent(QMouseEvent* event) override;
 	void mouseReleaseEvent(QMouseEvent* event) override;
@@ -200,6 +199,10 @@ class CarouselView : public QQuickItem {
 	void addVelocitySample(qint64 t, qreal x);
 	qreal sampledVelocity() const;
 
+	void notifyCurrentIndexChanged();
+	void notifyCurrentItemChanged();
+	void notifyPreviewIndexChanged(int realIndex);
+
 	QQmlComponent* m_delegate = nullptr;
 	QVariantList m_model;
 	QVariantMap m_delegateProperties;
@@ -242,6 +245,9 @@ class CarouselView : public QQuickItem {
 
 	QVariantAnimation* m_flickAnim = nullptr;
 
+	bool m_completed = false;
+	int m_pendingCurrentIndex = -1;
+
 	bool m_initializedLayout = false;
 	bool m_relayoutQueued = false;
 };