fix search trickle through actions and variants view and mouse event stealing by wallpapertile

Plugins/ZShell/Components/carouselview.cpp

@@ -21,6 +21,7 @@ constexpr int kMaxLayoutCapacity = 64;
 
 CarouselView::CarouselView(QQuickItem* parent) : QQuickItem(parent) {
 	setAcceptedMouseButtons(Qt::LeftButton);
+	setFiltersChildMouseEvents(true);
 	setFlag(QQuickItem::ItemHasContents, false);
 	setClip(false);
 
@@ -80,6 +81,89 @@ void CarouselView::setDelegate(QQmlComponent* c) {
 	relayout();
 }
 
+bool CarouselView::childMouseEventFilter(QQuickItem* item, QEvent* event) {
+	Q_UNUSED(item);
+
+	auto* mouseEvent = dynamic_cast<QMouseEvent*>(event);
+	if (!mouseEvent) return false;
+
+	const QPointF pos = mapFromItem(item, mouseEvent->position());
+
+	switch (mouseEvent->type()) {
+	case QEvent::MouseButtonPress: {
+		if (mouseEvent->button() != Qt::LeftButton) return false;
+
+		m_dragging = true;
+		m_dragActive = false;
+
+		m_pressPos = pos;
+		m_pressContentX = m_contentX;
+
+		m_dragTimer.start();
+
+		m_lastMoveX = pos.x();
+		m_lastMoveT = 0;
+		m_velocity = 0;
+
+		return false;
+	}
+
+	case QEvent::MouseMove: {
+		if (!m_dragging) return false;
+
+		const qreal dx = pos.x() - m_pressPos.x();
+
+		if (!m_dragActive && std::abs(dx) > kDragThreshold) {
+			m_dragActive = true;
+			m_pressContentX = m_contentX;
+
+			cancelAnimations();
+			grabMouse();
+		}
+
+		if (!m_dragActive) return false;
+
+		m_contentX = m_pressContentX - dx;
+
+		wrapContentIfNeeded();
+		updateCurrentIndexFromContentX(true);
+		relayout();
+
+		const qint64 t = m_dragTimer.elapsed();
+		const qint64 dt = t - m_lastMoveT;
+
+		if (dt > 0) {
+			const qreal instVel = (m_lastMoveX - pos.x()) / (dt / 1000.0);
+
+			m_velocity = m_velocity * 0.7 + instVel * 0.3;
+		}
+
+		m_lastMoveX = pos.x();
+		m_lastMoveT = t;
+
+		mouseEvent->accept();
+		return true;
+	}
+
+	case QEvent::MouseButtonRelease: {
+		if (!m_dragging) return false;
+
+		if (!m_dragActive) {
+			m_dragging = false;
+			return false;
+		}
+
+		return false;
+	}
+
+	case QEvent::MouseButtonDblClick:
+		return false;
+
+	default:
+		return false;
+	}
+}
+
 void CarouselView::setModel(const QVariantList& m) {
 	m_model = m;