File indexing completed on 2022-11-29 15:04:22

0001 /*
0002     SPDX-FileCopyrightText: 2020 Michail Vourlakos <mvourlakos@gmail.com>
0003     SPDX-License-Identifier: GPL-2.0-or-later
0004 */
0005 
0006 #ifndef VIEWEVENTSSINK_H
0007 #define VIEWEVENTSSINK_H
0008 
0009 // Qt
0010 #include <QEvent>
0011 #include <QObject>
0012 #include <QList>
0013 #include <QPointer>
0014 #include <QQuickItem>
0015 
0016 namespace Latte {
0017 class View;
0018 }
0019 
0020 namespace Latte {
0021 namespace ViewPart {
0022 
0023 //! This class is used in order to sunk events from children rects of originParentItem
0024 //! into the destination Item. Each applet container from containment qml part is responsible
0025 //! to initialize properly the originParentItem and the destinationItem to be used for
0026 //! sunk events
0027 
0028 class EventsSink: public QObject
0029 {
0030     Q_OBJECT
0031 
0032     Q_PROPERTY(QQuickItem *originParentItem READ originParentItem NOTIFY itemsChanged)
0033     Q_PROPERTY(QQuickItem *destinationItem READ destinationItem NOTIFY itemsChanged)
0034 
0035 public:
0036     EventsSink(Latte::View *parent);
0037     virtual ~EventsSink();
0038 
0039     bool isActive();
0040 
0041     QQuickItem *originParentItem() const;
0042     QQuickItem *destinationItem() const;
0043 
0044 public slots:
0045     Q_INVOKABLE void setSink(QQuickItem *originParent, QQuickItem *destination);
0046 
0047     QEvent *onEvent(QEvent *e);
0048 
0049 signals:
0050     void itemsChanged();
0051 
0052 private slots:
0053     void release();
0054 
0055 private:
0056     QPointF positionAdjustedForDestination(const QPointF &point) const;
0057 
0058     bool originSinksContain(const QPointF &point) const;
0059     bool destinationContains(const QPointF &point) const;
0060 private:
0061     QPointer<Latte::View> m_view;
0062 
0063     QPointer<QQuickItem> m_originParentItem;
0064     QPointer<QQuickItem> m_destinationItem;
0065 };
0066 
0067 }
0068 }
0069 
0070 #endif
0071