1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the Qt Quick Extras module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef MOUSETHIEF_H 41 #define MOUSETHIEF_H 42 43 #include <QObject> 44 #include <QPointer> 45 #include <QtQuick/QQuickItem> 46 47 class QQuickMouseThief : public QObject 48 { 49 Q_OBJECT 50 Q_PROPERTY(bool receivedPressEvent READ receivedPressEvent 51 WRITE setReceivedPressEvent NOTIFY receivedPressEventChanged) 52 public: 53 explicit QQuickMouseThief(QObject *parent = 0); 54 55 bool receivedPressEvent() const; 56 void setReceivedPressEvent(bool receivedPressEvent); 57 58 Q_INVOKABLE void grabMouse(QQuickItem *item); 59 Q_INVOKABLE void ungrabMouse(); 60 Q_INVOKABLE void acceptCurrentEvent(); 61 signals: 62 /*! 63 Coordinates are relative to the window of mItem. 64 */ 65 void pressed(int mouseX, int mouseY); 66 67 void released(int mouseX, int mouseY); 68 69 void clicked(int mouseX, int mouseY); 70 71 void touchUpdate(int mouseX, int mouseY); 72 73 void receivedPressEventChanged(); 74 75 void handledEventChanged(); 76 protected: 77 bool eventFilter(QObject *obj, QEvent *event) override; 78 private slots: 79 void itemWindowChanged(QQuickWindow *window); 80 private: 81 void emitPressed(const QPointF &pos); 82 void emitReleased(const QPointF &pos); 83 void emitClicked(const QPointF &pos); 84 85 QPointer<QQuickItem> mItem; 86 bool mReceivedPressEvent; 87 bool mAcceptCurrentEvent; 88 }; 89 90 #endif // MOUSETHIEF_H 91