File indexing completed on 2024-12-22 05:15:23

 /*
     SPDX-FileCopyrightText: 2014-2015 Eike Hein <hein@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "wheelinterceptor.h"
 
 #include <QCoreApplication>
 
 WheelInterceptor::WheelInterceptor(QQuickItem *parent)
     : QQuickItem(parent)
 {
 }
 
 WheelInterceptor::~WheelInterceptor()
 {
 }
 
 QQuickItem *WheelInterceptor::destination() const
 {
     return m_destination;
 }
 
 void WheelInterceptor::setDestination(QQuickItem *destination)
 {
     if (m_destination != destination) {
         m_destination = destination;
 
         Q_EMIT destinationChanged();
     }
 }
 
 void WheelInterceptor::wheelEvent(QWheelEvent *event)
 {
     if (m_destination) {
         QCoreApplication::sendEvent(m_destination, event);
     }
 
     Q_EMIT wheelMoved(event->angleDelta());
 }
 
 QQuickItem *WheelInterceptor::findWheelArea(QQuickItem *parent) const
 {
     if (!parent) {
         return nullptr;
     }
 
     const QList<QQuickItem *> childItems = parent->childItems();
     for (QQuickItem *child : childItems) {
         // HACK: ScrollView adds the WheelArea below its flickableItem with
         // z==-1. This is reasonable non-risky considering we know about
         // everything else in there, and worst case we break the mouse wheel.
         if (child->z() == -1) {
             return child;
         }
     }
 
     return nullptr;
 }